summaryrefslogtreecommitdiff
path: root/drivers/iio
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/accel/Kconfig26
-rw-r--r--drivers/iio/accel/bma180.c1
-rw-r--r--drivers/iio/accel/bmc150-accel.c243
-rw-r--r--drivers/iio/accel/kxcjk-1013.c5
-rw-r--r--drivers/iio/accel/mma8452.c215
-rw-r--r--drivers/iio/accel/mma9551_core.c35
-rw-r--r--drivers/iio/accel/mma9551_core.h6
-rw-r--r--drivers/iio/accel/mma9553.c83
-rw-r--r--drivers/iio/accel/st_accel.h1
-rw-r--r--drivers/iio/accel/st_accel_core.c12
-rw-r--r--drivers/iio/accel/st_accel_i2c.c6
-rw-r--r--drivers/iio/accel/st_accel_spi.c1
-rw-r--r--drivers/iio/accel/stk8312.c429
-rw-r--r--drivers/iio/accel/stk8ba50.c369
-rw-r--r--drivers/iio/adc/Kconfig52
-rw-r--r--drivers/iio/adc/berlin2-adc.c22
-rw-r--r--drivers/iio/adc/cc10001_adc.c26
-rw-r--r--drivers/iio/adc/mcp320x.c16
-rw-r--r--drivers/iio/adc/mcp3422.c1
-rw-r--r--drivers/iio/adc/ti-adc081c.c1
-rw-r--r--drivers/iio/adc/twl4030-madc.c34
-rw-r--r--drivers/iio/adc/vf610_adc.c79
-rw-r--r--drivers/iio/common/ssp_sensors/ssp_dev.c1
-rw-r--r--drivers/iio/common/st_sensors/st_sensors_core.c52
-rw-r--r--drivers/iio/dac/ad5064.c1
-rw-r--r--drivers/iio/dac/ad5380.c1
-rw-r--r--drivers/iio/dac/ad5446.c1
-rw-r--r--drivers/iio/dac/max5821.c1
-rw-r--r--drivers/iio/frequency/adf4350.c1
-rw-r--r--drivers/iio/gyro/adis16136.c6
-rw-r--r--drivers/iio/gyro/adis16260.c137
-rw-r--r--drivers/iio/gyro/itg3200_core.c1
-rw-r--r--drivers/iio/gyro/st_gyro_core.c3
-rw-r--r--drivers/iio/gyro/st_gyro_i2c.c1
-rw-r--r--drivers/iio/humidity/dht11.c65
-rw-r--r--drivers/iio/humidity/si7005.c1
-rw-r--r--drivers/iio/imu/adis16400_core.c44
-rw-r--r--drivers/iio/imu/inv_mpu6050/inv_mpu_core.c7
-rw-r--r--drivers/iio/imu/kmx61.c8
-rw-r--r--drivers/iio/industrialio-buffer.c33
-rw-r--r--drivers/iio/industrialio-core.c33
-rw-r--r--drivers/iio/industrialio-event.c6
-rw-r--r--drivers/iio/industrialio-trigger.c27
-rw-r--r--drivers/iio/industrialio-triggered-buffer.c12
-rw-r--r--drivers/iio/light/Kconfig34
-rw-r--r--drivers/iio/light/Makefile3
-rw-r--r--drivers/iio/light/acpi-als.c18
-rw-r--r--drivers/iio/light/apds9300.c1
-rw-r--r--drivers/iio/light/bh1750.c1
-rw-r--r--drivers/iio/light/cm32181.c2
-rw-r--r--drivers/iio/light/cm3232.c2
-rw-r--r--drivers/iio/light/cm3323.c19
-rw-r--r--drivers/iio/light/cm36651.c2
-rw-r--r--drivers/iio/light/gp2ap020a00f.c2
-rw-r--r--drivers/iio/light/hid-sensor-prox.c3
-rw-r--r--drivers/iio/light/isl29125.c13
-rw-r--r--drivers/iio/light/jsa1212.c1
-rw-r--r--drivers/iio/light/ltr501.c1
-rw-r--r--drivers/iio/light/opt3001.c804
-rw-r--r--drivers/iio/light/pa12203001.c483
-rw-r--r--drivers/iio/light/rpr0521.c615
-rw-r--r--drivers/iio/light/stk3310.c7
-rw-r--r--drivers/iio/light/tcs3414.c1
-rw-r--r--drivers/iio/light/tcs3472.c1
-rw-r--r--drivers/iio/light/tsl4531.c1
-rw-r--r--drivers/iio/light/vcnl4000.c1
-rw-r--r--drivers/iio/magnetometer/bmc150_magn.c101
-rw-r--r--drivers/iio/magnetometer/mmc35240.c33
-rw-r--r--drivers/iio/magnetometer/st_magn.h3
-rw-r--r--drivers/iio/magnetometer/st_magn_buffer.c7
-rw-r--r--drivers/iio/magnetometer/st_magn_core.c98
-rw-r--r--drivers/iio/magnetometer/st_magn_i2c.c6
-rw-r--r--drivers/iio/magnetometer/st_magn_spi.c1
-rw-r--r--drivers/iio/pressure/Kconfig6
-rw-r--r--drivers/iio/pressure/ms5611.h16
-rw-r--r--drivers/iio/pressure/ms5611_core.c82
-rw-r--r--drivers/iio/pressure/ms5611_i2c.c6
-rw-r--r--drivers/iio/pressure/ms5611_spi.c6
-rw-r--r--drivers/iio/pressure/st_pressure_core.c3
-rw-r--r--drivers/iio/pressure/st_pressure_i2c.c1
-rw-r--r--drivers/iio/temperature/mlx90614.c21
-rw-r--r--drivers/iio/temperature/tmp006.c5
82 files changed, 3815 insertions, 700 deletions
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 00e7bcbdb..a59047d76 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -86,18 +86,6 @@ config KXSD9
To compile this driver as a module, choose M here: the module
will be called kxsd9.
-config MMA8452
- tristate "Freescale MMA8452Q Accelerometer Driver"
- depends on I2C
- select IIO_BUFFER
- select IIO_TRIGGERED_BUFFER
- help
- Say yes here to build support for the Freescale MMA8452Q 3-axis
- accelerometer.
-
- To compile this driver as a module, choose M here: the module
- will be called mma8452.
-
config KXCJK1013
tristate "Kionix 3-Axis Accelerometer Driver"
depends on I2C
@@ -111,6 +99,18 @@ config KXCJK1013
To compile this driver as a module, choose M here: the module will
be called kxcjk-1013.
+config MMA8452
+ tristate "Freescale MMA8452Q Accelerometer Driver"
+ depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ Say yes here to build support for the Freescale MMA8452Q 3-axis
+ accelerometer.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mma8452.
+
config MMA9551_CORE
tristate
@@ -140,6 +140,8 @@ config MMA9553
config STK8312
tristate "Sensortek STK8312 3-Axis Accelerometer Driver"
depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
help
Say yes here to get support for the Sensortek STK8312 3-axis
accelerometer.
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 75c6d2103..f04b88406 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -846,7 +846,6 @@ MODULE_DEVICE_TABLE(i2c, bma180_ids);
static struct i2c_driver bma180_driver = {
.driver = {
.name = "bma180",
- .owner = THIS_MODULE,
.pm = BMA180_PM_OPS,
},
.probe = bma180_probe,
diff --git a/drivers/iio/accel/bmc150-accel.c b/drivers/iio/accel/bmc150-accel.c
index cc5a35750..0104cdef8 100644
--- a/drivers/iio/accel/bmc150-accel.c
+++ b/drivers/iio/accel/bmc150-accel.c
@@ -151,6 +151,7 @@ struct bmc150_scale_info {
};
struct bmc150_accel_chip_info {
+ const char *name;
u8 chip_id;
const struct iio_chan_spec *channels;
int num_channels;
@@ -241,7 +242,6 @@ static const struct {
{500000, BMC150_ACCEL_SLEEP_500_MS},
{1000000, BMC150_ACCEL_SLEEP_1_SEC} };
-
static int bmc150_accel_set_mode(struct bmc150_accel_data *data,
enum bmc150_power_modes mode,
int dur_us)
@@ -259,8 +259,9 @@ static int bmc150_accel_set_mode(struct bmc150_accel_data *data,
dur_val =
bmc150_accel_sleep_value_table[i].reg_value;
}
- } else
+ } else {
dur_val = 0;
+ }
if (dur_val < 0)
return -EINVAL;
@@ -288,7 +289,7 @@ static int bmc150_accel_set_bw(struct bmc150_accel_data *data, int val,
for (i = 0; i < ARRAY_SIZE(bmc150_accel_samp_freq_table); ++i) {
if (bmc150_accel_samp_freq_table[i].val == val &&
- bmc150_accel_samp_freq_table[i].val2 == val2) {
+ bmc150_accel_samp_freq_table[i].val2 == val2) {
ret = i2c_smbus_write_byte_data(
data->client,
BMC150_ACCEL_REG_PMU_BW,
@@ -345,65 +346,6 @@ static int bmc150_accel_any_motion_setup(struct bmc150_accel_trigger *t,
return 0;
}
-static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
-{
- int ret;
-
- ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_CHIP_ID);
- if (ret < 0) {
- dev_err(&data->client->dev,
- "Error: Reading chip id\n");
- return ret;
- }
-
- dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
- if (ret != data->chip_info->chip_id) {
- dev_err(&data->client->dev, "Invalid chip %x\n", ret);
- return -ENODEV;
- }
-
- ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
- if (ret < 0)
- return ret;
-
- /* Set Bandwidth */
- ret = bmc150_accel_set_bw(data, BMC150_ACCEL_DEF_BW, 0);
- if (ret < 0)
- return ret;
-
- /* Set Default Range */
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_PMU_RANGE,
- BMC150_ACCEL_DEF_RANGE_4G);
- if (ret < 0) {
- dev_err(&data->client->dev,
- "Error writing reg_pmu_range\n");
- return ret;
- }
-
- data->range = BMC150_ACCEL_DEF_RANGE_4G;
-
- /* Set default slope duration and thresholds */
- data->slope_thres = BMC150_ACCEL_DEF_SLOPE_THRESHOLD;
- data->slope_dur = BMC150_ACCEL_DEF_SLOPE_DURATION;
- ret = bmc150_accel_update_slope(data);
- if (ret < 0)
- return ret;
-
- /* Set default as latched interrupts */
- ret = i2c_smbus_write_byte_data(data->client,
- BMC150_ACCEL_REG_INT_RST_LATCH,
- BMC150_ACCEL_INT_MODE_LATCH_INT |
- BMC150_ACCEL_INT_MODE_LATCH_RESET);
- if (ret < 0) {
- dev_err(&data->client->dev,
- "Error writing reg_int_rst_latch\n");
- return ret;
- }
-
- return 0;
-}
-
static int bmc150_accel_get_bw(struct bmc150_accel_data *data, int *val,
int *val2)
{
@@ -437,12 +379,13 @@ static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
{
int ret;
- if (on)
+ if (on) {
ret = pm_runtime_get_sync(&data->client->dev);
- else {
+ } else {
pm_runtime_mark_last_busy(&data->client->dev);
ret = pm_runtime_put_autosuspend(&data->client->dev);
}
+
if (ret < 0) {
dev_err(&data->client->dev,
"Failed: bmc150_accel_set_power_state for %d\n", on);
@@ -514,13 +457,13 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i,
}
/*
- * We will expect the enable and disable to do operation in
- * in reverse order. This will happen here anyway as our
- * resume operation uses sync mode runtime pm calls, the
- * suspend operation will be delayed by autosuspend delay
- * So the disable operation will still happen in reverse of
- * enable operation. When runtime pm is disabled the mode
- * is always on so sequence doesn't matter
+ * We will expect the enable and disable to do operation in reverse
+ * order. This will happen here anyway, as our resume operation uses
+ * sync mode runtime pm calls. The suspend operation will be delayed
+ * by autosuspend delay.
+ * So the disable operation will still happen in reverse order of
+ * enable operation. When runtime pm is disabled the mode is always on,
+ * so sequence doesn't matter.
*/
ret = bmc150_accel_set_power_state(data, state);
if (ret < 0)
@@ -574,7 +517,6 @@ out_fix_power_state:
return ret;
}
-
static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val)
{
int ret, i;
@@ -674,8 +616,9 @@ static int bmc150_accel_read_raw(struct iio_dev *indio_dev,
if (chan->type == IIO_TEMP) {
*val = BMC150_ACCEL_TEMP_CENTER_VAL;
return IIO_VAL_INT;
- } else
+ } else {
return -EINVAL;
+ }
case IIO_CHAN_INFO_SCALE:
*val = 0;
switch (chan->type) {
@@ -776,7 +719,7 @@ static int bmc150_accel_write_event(struct iio_dev *indio_dev,
switch (info) {
case IIO_EV_INFO_VALUE:
- data->slope_thres = val & 0xFF;
+ data->slope_thres = val & BMC150_ACCEL_SLOPE_THRES_MASK;
break;
case IIO_EV_INFO_PERIOD:
data->slope_dur = val & BMC150_ACCEL_SLOPE_DUR_MASK;
@@ -793,7 +736,6 @@ static int bmc150_accel_read_event_config(struct iio_dev *indio_dev,
enum iio_event_type type,
enum iio_event_direction dir)
{
-
struct bmc150_accel_data *data = iio_priv(indio_dev);
return data->ev_enable_state;
@@ -827,7 +769,7 @@ static int bmc150_accel_write_event_config(struct iio_dev *indio_dev,
}
static int bmc150_accel_validate_trigger(struct iio_dev *indio_dev,
- struct iio_trigger *trig)
+ struct iio_trigger *trig)
{
struct bmc150_accel_data *data = iio_priv(indio_dev);
int i;
@@ -963,6 +905,7 @@ static int __bmc150_accel_fifo_flush(struct iio_dev *indio_dev,
u16 buffer[BMC150_ACCEL_FIFO_LENGTH * 3];
int64_t tstamp;
uint64_t sample_period;
+
ret = i2c_smbus_read_byte_data(data->client,
BMC150_ACCEL_REG_FIFO_STATUS);
if (ret < 0) {
@@ -1120,6 +1063,7 @@ enum {
static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
[bmc150] = {
+ .name = "BMC150A",
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
@@ -1129,6 +1073,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bmi055] = {
+ .name = "BMI055A",
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
@@ -1138,6 +1083,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma255] = {
+ .name = "BMA0255",
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
@@ -1147,6 +1093,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma250e] = {
+ .name = "BMA250E",
.chip_id = 0xF9,
.channels = bma250e_accel_channels,
.num_channels = ARRAY_SIZE(bma250e_accel_channels),
@@ -1156,6 +1103,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{306457, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma222e] = {
+ .name = "BMA222E",
.chip_id = 0xF8,
.channels = bma222e_accel_channels,
.num_channels = ARRAY_SIZE(bma222e_accel_channels),
@@ -1165,6 +1113,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{1225831, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma280] = {
+ .name = "BMA0280",
.chip_id = 0xFB,
.channels = bma280_accel_channels,
.num_channels = ARRAY_SIZE(bma280_accel_channels),
@@ -1255,7 +1204,7 @@ static int bmc150_accel_trig_try_reen(struct iio_trigger *trig)
}
static int bmc150_accel_trigger_set_state(struct iio_trigger *trig,
- bool state)
+ bool state)
{
struct bmc150_accel_trigger *t = iio_trigger_get_drvdata(trig);
struct bmc150_accel_data *data = t->data;
@@ -1314,26 +1263,32 @@ static int bmc150_accel_handle_roc_event(struct iio_dev *indio_dev)
dir = IIO_EV_DIR_RISING;
if (ret & BMC150_ACCEL_ANY_MOTION_BIT_X)
- iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL,
- 0,
- IIO_MOD_X,
- IIO_EV_TYPE_ROC,
- dir),
- data->timestamp);
+ iio_push_event(indio_dev,
+ IIO_MOD_EVENT_CODE(IIO_ACCEL,
+ 0,
+ IIO_MOD_X,
+ IIO_EV_TYPE_ROC,
+ dir),
+ data->timestamp);
+
if (ret & BMC150_ACCEL_ANY_MOTION_BIT_Y)
- iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL,
- 0,
- IIO_MOD_Y,
- IIO_EV_TYPE_ROC,
- dir),
- data->timestamp);
+ iio_push_event(indio_dev,
+ IIO_MOD_EVENT_CODE(IIO_ACCEL,
+ 0,
+ IIO_MOD_Y,
+ IIO_EV_TYPE_ROC,
+ dir),
+ data->timestamp);
+
if (ret & BMC150_ACCEL_ANY_MOTION_BIT_Z)
- iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL,
- 0,
- IIO_MOD_Z,
- IIO_EV_TYPE_ROC,
- dir),
- data->timestamp);
+ iio_push_event(indio_dev,
+ IIO_MOD_EVENT_CODE(IIO_ACCEL,
+ 0,
+ IIO_MOD_Z,
+ IIO_EV_TYPE_ROC,
+ dir),
+ data->timestamp);
+
return ret;
}
@@ -1365,7 +1320,9 @@ static irqreturn_t bmc150_accel_irq_thread_handler(int irq, void *private)
BMC150_ACCEL_INT_MODE_LATCH_INT |
BMC150_ACCEL_INT_MODE_LATCH_RESET);
if (ret)
- dev_err(&data->client->dev, "Error writing reg_int_rst_latch\n");
+ dev_err(&data->client->dev,
+ "Error writing reg_int_rst_latch\n");
+
ret = IRQ_HANDLED;
} else {
ret = IRQ_NONE;
@@ -1403,22 +1360,8 @@ static irqreturn_t bmc150_accel_irq_handler(int irq, void *private)
return IRQ_NONE;
}
-static const char *bmc150_accel_match_acpi_device(struct device *dev, int *data)
-{
- const struct acpi_device_id *id;
-
- id = acpi_match_device(dev->driver->acpi_match_table, dev);
-
- if (!id)
- return NULL;
-
- *data = (int) id->driver_data;
-
- return dev_name(dev);
-}
-
static int bmc150_accel_gpio_probe(struct i2c_client *client,
- struct bmc150_accel_data *data)
+ struct bmc150_accel_data *data)
{
struct device *dev;
struct gpio_desc *gpio;
@@ -1611,6 +1554,70 @@ static const struct iio_buffer_setup_ops bmc150_accel_buffer_ops = {
.postdisable = bmc150_accel_buffer_postdisable,
};
+static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
+{
+ int ret, i;
+
+ ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_CHIP_ID);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error: Reading chip id\n");
+ return ret;
+ }
+
+ dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
+ for (i = 0; i < ARRAY_SIZE(bmc150_accel_chip_info_tbl); i++) {
+ if (bmc150_accel_chip_info_tbl[i].chip_id == ret) {
+ data->chip_info = &bmc150_accel_chip_info_tbl[i];
+ break;
+ }
+ }
+
+ if (!data->chip_info) {
+ dev_err(&data->client->dev, "Unsupported chip %x\n", ret);
+ return -ENODEV;
+ }
+
+ ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
+ if (ret < 0)
+ return ret;
+
+ /* Set Bandwidth */
+ ret = bmc150_accel_set_bw(data, BMC150_ACCEL_DEF_BW, 0);
+ if (ret < 0)
+ return ret;
+
+ /* Set Default Range */
+ ret = i2c_smbus_write_byte_data(data->client,
+ BMC150_ACCEL_REG_PMU_RANGE,
+ BMC150_ACCEL_DEF_RANGE_4G);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Error writing reg_pmu_range\n");
+ return ret;
+ }
+
+ data->range = BMC150_ACCEL_DEF_RANGE_4G;
+
+ /* Set default slope duration and thresholds */
+ data->slope_thres = BMC150_ACCEL_DEF_SLOPE_THRESHOLD;
+ data->slope_dur = BMC150_ACCEL_DEF_SLOPE_DURATION;
+ ret = bmc150_accel_update_slope(data);
+ if (ret < 0)
+ return ret;
+
+ /* Set default as latched interrupts */
+ ret = i2c_smbus_write_byte_data(data->client,
+ BMC150_ACCEL_REG_INT_RST_LATCH,
+ BMC150_ACCEL_INT_MODE_LATCH_INT |
+ BMC150_ACCEL_INT_MODE_LATCH_RESET);
+ if (ret < 0) {
+ dev_err(&data->client->dev,
+ "Error writing reg_int_rst_latch\n");
+ return ret;
+ }
+
+ return 0;
+}
+
static int bmc150_accel_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1618,7 +1625,6 @@ static int bmc150_accel_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
int ret;
const char *name = NULL;
- int chip_id = 0;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
if (!indio_dev)
@@ -1628,15 +1634,8 @@ static int bmc150_accel_probe(struct i2c_client *client,
i2c_set_clientdata(client, indio_dev);
data->client = client;
- if (id) {
+ if (id)
name = id->name;
- chip_id = id->driver_data;
- }
-
- if (ACPI_HANDLE(&client->dev))
- name = bmc150_accel_match_acpi_device(&client->dev, &chip_id);
-
- data->chip_info = &bmc150_accel_chip_info_tbl[chip_id];
ret = bmc150_accel_chip_init(data);
if (ret < 0)
@@ -1647,7 +1646,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
indio_dev->dev.parent = &client->dev;
indio_dev->channels = data->chip_info->channels;
indio_dev->num_channels = data->chip_info->num_channels;
- indio_dev->name = name;
+ indio_dev->name = name ? name : data->chip_info->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bmc150_accel_info;
@@ -1663,7 +1662,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
if (client->irq < 0)
client->irq = bmc150_accel_gpio_probe(client, data);
- if (client->irq >= 0) {
+ if (client->irq > 0) {
ret = devm_request_threaded_irq(
&client->dev, client->irq,
bmc150_accel_irq_handler,
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 0d9bd35ff..3292bc0c1 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -658,10 +658,8 @@ static int kxcjk1013_set_scale(struct kxcjk1013_data *data, int val)
int ret, i;
enum kxcjk1013_mode store_mode;
-
for (i = 0; i < ARRAY_SIZE(KXCJK1013_scale_table); ++i) {
if (KXCJK1013_scale_table[i].scale == val) {
-
ret = kxcjk1013_get_mode(data, &store_mode);
if (ret < 0)
return ret;
@@ -820,7 +818,6 @@ static int kxcjk1013_read_event_config(struct iio_dev *indio_dev,
enum iio_event_type type,
enum iio_event_direction dir)
{
-
struct kxcjk1013_data *data = iio_priv(indio_dev);
return data->ev_enable_state;
@@ -1243,7 +1240,7 @@ static int kxcjk1013_probe(struct i2c_client *client,
if (client->irq < 0)
client->irq = kxcjk1013_gpio_probe(client, data);
- if (client->irq >= 0) {
+ if (client->irq > 0) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
kxcjk1013_data_rdy_trig_poll,
kxcjk1013_event_handler,
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index bda69a435..b921d84c1 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -16,7 +16,6 @@
#include <linux/i2c.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
-#include <linux/iio/trigger_consumer.h>
#include <linux/iio/buffer.h>
#include <linux/iio/trigger.h>
#include <linux/iio/trigger_consumer.h>
@@ -24,54 +23,51 @@
#include <linux/iio/events.h>
#include <linux/delay.h>
-#define MMA8452_STATUS 0x00
-#define MMA8452_OUT_X 0x01 /* MSB first, 12-bit */
-#define MMA8452_OUT_Y 0x03
-#define MMA8452_OUT_Z 0x05
-#define MMA8452_INT_SRC 0x0c
-#define MMA8452_WHO_AM_I 0x0d
-#define MMA8452_DATA_CFG 0x0e
-#define MMA8452_HP_FILTER_CUTOFF 0x0f
-#define MMA8452_HP_FILTER_CUTOFF_SEL_MASK (BIT(0) | BIT(1))
-#define MMA8452_TRANSIENT_CFG 0x1d
-#define MMA8452_TRANSIENT_CFG_ELE BIT(4)
-#define MMA8452_TRANSIENT_CFG_CHAN(chan) BIT(chan + 1)
-#define MMA8452_TRANSIENT_CFG_HPF_BYP BIT(0)
-#define MMA8452_TRANSIENT_SRC 0x1e
-#define MMA8452_TRANSIENT_SRC_XTRANSE BIT(1)
-#define MMA8452_TRANSIENT_SRC_YTRANSE BIT(3)
-#define MMA8452_TRANSIENT_SRC_ZTRANSE BIT(5)
-#define MMA8452_TRANSIENT_THS 0x1f
-#define MMA8452_TRANSIENT_THS_MASK 0x7f
-#define MMA8452_TRANSIENT_COUNT 0x20
-#define MMA8452_OFF_X 0x2f
-#define MMA8452_OFF_Y 0x30
-#define MMA8452_OFF_Z 0x31
-#define MMA8452_CTRL_REG1 0x2a
-#define MMA8452_CTRL_REG2 0x2b
-#define MMA8452_CTRL_REG2_RST BIT(6)
-#define MMA8452_CTRL_REG4 0x2d
-#define MMA8452_CTRL_REG5 0x2e
-
-#define MMA8452_MAX_REG 0x31
-
-#define MMA8452_STATUS_DRDY (BIT(2) | BIT(1) | BIT(0))
-
-#define MMA8452_CTRL_DR_MASK (BIT(5) | BIT(4) | BIT(3))
-#define MMA8452_CTRL_DR_SHIFT 3
-#define MMA8452_CTRL_DR_DEFAULT 0x4 /* 50 Hz sample frequency */
-#define MMA8452_CTRL_ACTIVE BIT(0)
-
-#define MMA8452_DATA_CFG_FS_MASK (BIT(1) | BIT(0))
-#define MMA8452_DATA_CFG_FS_2G 0
-#define MMA8452_DATA_CFG_FS_4G 1
-#define MMA8452_DATA_CFG_FS_8G 2
-#define MMA8452_DATA_CFG_HPF_MASK BIT(4)
-
-#define MMA8452_INT_DRDY BIT(0)
-#define MMA8452_INT_TRANS BIT(5)
-
-#define MMA8452_DEVICE_ID 0x2a
+#define MMA8452_STATUS 0x00
+#define MMA8452_STATUS_DRDY (BIT(2) | BIT(1) | BIT(0))
+#define MMA8452_OUT_X 0x01 /* MSB first, 12-bit */
+#define MMA8452_OUT_Y 0x03
+#define MMA8452_OUT_Z 0x05
+#define MMA8452_INT_SRC 0x0c
+#define MMA8452_WHO_AM_I 0x0d
+#define MMA8452_DATA_CFG 0x0e
+#define MMA8452_DATA_CFG_FS_MASK GENMASK(1, 0)
+#define MMA8452_DATA_CFG_FS_2G 0
+#define MMA8452_DATA_CFG_FS_4G 1
+#define MMA8452_DATA_CFG_FS_8G 2
+#define MMA8452_DATA_CFG_HPF_MASK BIT(4)
+#define MMA8452_HP_FILTER_CUTOFF 0x0f
+#define MMA8452_HP_FILTER_CUTOFF_SEL_MASK GENMASK(1, 0)
+#define MMA8452_TRANSIENT_CFG 0x1d
+#define MMA8452_TRANSIENT_CFG_HPF_BYP BIT(0)
+#define MMA8452_TRANSIENT_CFG_CHAN(chan) BIT(chan + 1)
+#define MMA8452_TRANSIENT_CFG_ELE BIT(4)
+#define MMA8452_TRANSIENT_SRC 0x1e
+#define MMA8452_TRANSIENT_SRC_XTRANSE BIT(1)
+#define MMA8452_TRANSIENT_SRC_YTRANSE BIT(3)
+#define MMA8452_TRANSIENT_SRC_ZTRANSE BIT(5)
+#define MMA8452_TRANSIENT_THS 0x1f
+#define MMA8452_TRANSIENT_THS_MASK GENMASK(6, 0)
+#define MMA8452_TRANSIENT_COUNT 0x20
+#define MMA8452_CTRL_REG1 0x2a
+#define MMA8452_CTRL_ACTIVE BIT(0)
+#define MMA8452_CTRL_DR_MASK GENMASK(5, 3)
+#define MMA8452_CTRL_DR_SHIFT 3
+#define MMA8452_CTRL_DR_DEFAULT 0x4 /* 50 Hz sample frequency */
+#define MMA8452_CTRL_REG2 0x2b
+#define MMA8452_CTRL_REG2_RST BIT(6)
+#define MMA8452_CTRL_REG4 0x2d
+#define MMA8452_CTRL_REG5 0x2e
+#define MMA8452_OFF_X 0x2f
+#define MMA8452_OFF_Y 0x30
+#define MMA8452_OFF_Z 0x31
+
+#define MMA8452_MAX_REG 0x31
+
+#define MMA8452_INT_DRDY BIT(0)
+#define MMA8452_INT_TRANS BIT(5)
+
+#define MMA8452_DEVICE_ID 0x2a
struct mma8452_data {
struct i2c_client *client;
@@ -91,30 +87,34 @@ static int mma8452_drdy(struct mma8452_data *data)
return ret;
if ((ret & MMA8452_STATUS_DRDY) == MMA8452_STATUS_DRDY)
return 0;
+
msleep(20);
}
dev_err(&data->client->dev, "data not ready\n");
+
return -EIO;
}
static int mma8452_read(struct mma8452_data *data, __be16 buf[3])
{
int ret = mma8452_drdy(data);
+
if (ret < 0)
return ret;
- return i2c_smbus_read_i2c_block_data(data->client,
- MMA8452_OUT_X, 3 * sizeof(__be16), (u8 *) buf);
+
+ return i2c_smbus_read_i2c_block_data(data->client, MMA8452_OUT_X,
+ 3 * sizeof(__be16), (u8 *)buf);
}
-static ssize_t mma8452_show_int_plus_micros(char *buf,
- const int (*vals)[2], int n)
+static ssize_t mma8452_show_int_plus_micros(char *buf, const int (*vals)[2],
+ int n)
{
size_t len = 0;
while (n-- > 0)
- len += scnprintf(buf + len, PAGE_SIZE - len,
- "%d.%06d ", vals[n][0], vals[n][1]);
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06d ",
+ vals[n][0], vals[n][1]);
/* replace trailing space by newline */
buf[len - 1] = '\n';
@@ -123,7 +123,7 @@ static ssize_t mma8452_show_int_plus_micros(char *buf,
}
static int mma8452_get_int_plus_micros_index(const int (*vals)[2], int n,
- int val, int val2)
+ int val, int val2)
{
while (n-- > 0)
if (val == vals[n][0] && val2 == vals[n][1])
@@ -147,7 +147,7 @@ static const int mma8452_samp_freq[8][2] = {
* Hardware has fullscale of -2G, -4G, -8G corresponding to raw value -2048
* The userspace interface uses m/s^2 and we declare micro units
* So scale factor is given by:
- * g * N * 1000000 / 2048 for N = 2, 4, 8 and g=9.80665
+ * g * N * 1000000 / 2048 for N = 2, 4, 8 and g = 9.80665
*/
static const int mma8452_scales[3][2] = {
{0, 9577}, {0, 19154}, {0, 38307}
@@ -178,17 +178,19 @@ static const int mma8452_hp_filter_cutoff[8][4][2] = {
};
static ssize_t mma8452_show_samp_freq_avail(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
return mma8452_show_int_plus_micros(buf, mma8452_samp_freq,
- ARRAY_SIZE(mma8452_samp_freq));
+ ARRAY_SIZE(mma8452_samp_freq));
}
static ssize_t mma8452_show_scale_avail(struct device *dev,
- struct device_attribute *attr, char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
return mma8452_show_int_plus_micros(buf, mma8452_scales,
- ARRAY_SIZE(mma8452_scales));
+ ARRAY_SIZE(mma8452_scales));
}
static ssize_t mma8452_show_hp_cutoff_avail(struct device *dev,
@@ -205,22 +207,23 @@ static ssize_t mma8452_show_hp_cutoff_avail(struct device *dev,
static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(mma8452_show_samp_freq_avail);
static IIO_DEVICE_ATTR(in_accel_scale_available, S_IRUGO,
- mma8452_show_scale_avail, NULL, 0);
+ mma8452_show_scale_avail, NULL, 0);
static IIO_DEVICE_ATTR(in_accel_filter_high_pass_3db_frequency_available,
- S_IRUGO, mma8452_show_hp_cutoff_avail, NULL, 0);
+ S_IRUGO, mma8452_show_hp_cutoff_avail, NULL, 0);
static int mma8452_get_samp_freq_index(struct mma8452_data *data,
- int val, int val2)
+ int val, int val2)
{
return mma8452_get_int_plus_micros_index(mma8452_samp_freq,
- ARRAY_SIZE(mma8452_samp_freq), val, val2);
+ ARRAY_SIZE(mma8452_samp_freq),
+ val, val2);
}
-static int mma8452_get_scale_index(struct mma8452_data *data,
- int val, int val2)
+static int mma8452_get_scale_index(struct mma8452_data *data, int val, int val2)
{
return mma8452_get_int_plus_micros_index(mma8452_scales,
- ARRAY_SIZE(mma8452_scales), val, val2);
+ ARRAY_SIZE(mma8452_scales),
+ val, val2);
}
static int mma8452_get_hp_filter_index(struct mma8452_data *data,
@@ -266,25 +269,31 @@ static int mma8452_read_raw(struct iio_dev *indio_dev,
mutex_unlock(&data->lock);
if (ret < 0)
return ret;
- *val = sign_extend32(
- be16_to_cpu(buffer[chan->scan_index]) >> 4, 11);
+
+ *val = sign_extend32(be16_to_cpu(buffer[chan->scan_index]) >> 4,
+ 11);
+
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
i = data->data_cfg & MMA8452_DATA_CFG_FS_MASK;
*val = mma8452_scales[i][0];
*val2 = mma8452_scales[i][1];
+
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_SAMP_FREQ:
i = mma8452_get_odr_index(data);
*val = mma8452_samp_freq[i][0];
*val2 = mma8452_samp_freq[i][1];
+
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_CALIBBIAS:
- ret = i2c_smbus_read_byte_data(data->client, MMA8452_OFF_X +
- chan->scan_index);
+ ret = i2c_smbus_read_byte_data(data->client,
+ MMA8452_OFF_X + chan->scan_index);
if (ret < 0)
return ret;
+
*val = sign_extend32(ret, 7);
+
return IIO_VAL_INT;
case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
if (data->data_cfg & MMA8452_DATA_CFG_HPF_MASK) {
@@ -295,21 +304,23 @@ static int mma8452_read_raw(struct iio_dev *indio_dev,
*val = 0;
*val2 = 0;
}
+
return IIO_VAL_INT_PLUS_MICRO;
}
+
return -EINVAL;
}
static int mma8452_standby(struct mma8452_data *data)
{
return i2c_smbus_write_byte_data(data->client, MMA8452_CTRL_REG1,
- data->ctrl_reg1 & ~MMA8452_CTRL_ACTIVE);
+ data->ctrl_reg1 & ~MMA8452_CTRL_ACTIVE);
}
static int mma8452_active(struct mma8452_data *data)
{
return i2c_smbus_write_byte_data(data->client, MMA8452_CTRL_REG1,
- data->ctrl_reg1);
+ data->ctrl_reg1);
}
static int mma8452_change_config(struct mma8452_data *data, u8 reg, u8 val)
@@ -334,6 +345,7 @@ static int mma8452_change_config(struct mma8452_data *data, u8 reg, u8 val)
ret = 0;
fail:
mutex_unlock(&data->lock);
+
return ret;
}
@@ -344,12 +356,13 @@ static int mma8452_set_hp_filter_frequency(struct mma8452_data *data,
i = mma8452_get_hp_filter_index(data, val, val2);
if (i < 0)
- return -EINVAL;
+ return i;
reg = i2c_smbus_read_byte_data(data->client,
MMA8452_HP_FILTER_CUTOFF);
if (reg < 0)
return reg;
+
reg &= ~MMA8452_HP_FILTER_CUTOFF_SEL_MASK;
reg |= i;
@@ -370,25 +383,30 @@ static int mma8452_write_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SAMP_FREQ:
i = mma8452_get_samp_freq_index(data, val, val2);
if (i < 0)
- return -EINVAL;
+ return i;
data->ctrl_reg1 &= ~MMA8452_CTRL_DR_MASK;
data->ctrl_reg1 |= i << MMA8452_CTRL_DR_SHIFT;
+
return mma8452_change_config(data, MMA8452_CTRL_REG1,
- data->ctrl_reg1);
+ data->ctrl_reg1);
case IIO_CHAN_INFO_SCALE:
i = mma8452_get_scale_index(data, val, val2);
if (i < 0)
- return -EINVAL;
+ return i;
+
data->data_cfg &= ~MMA8452_DATA_CFG_FS_MASK;
data->data_cfg |= i;
+
return mma8452_change_config(data, MMA8452_DATA_CFG,
- data->data_cfg);
+ data->data_cfg);
case IIO_CHAN_INFO_CALIBBIAS:
if (val < -128 || val > 127)
return -EINVAL;
- return mma8452_change_config(data, MMA8452_OFF_X +
- chan->scan_index, val);
+
+ return mma8452_change_config(data,
+ MMA8452_OFF_X + chan->scan_index,
+ val);
case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
if (val == 0 && val2 == 0) {
@@ -399,8 +417,9 @@ static int mma8452_write_raw(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
}
+
return mma8452_change_config(data, MMA8452_DATA_CFG,
- data->data_cfg);
+ data->data_cfg);
default:
return -EINVAL;
@@ -425,6 +444,7 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
return ret;
*val = ret & MMA8452_TRANSIENT_THS_MASK;
+
return IIO_VAL_INT;
case IIO_EV_INFO_PERIOD:
@@ -437,6 +457,7 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
mma8452_get_odr_index(data)];
*val = us / USEC_PER_SEC;
*val2 = us % USEC_PER_SEC;
+
return IIO_VAL_INT_PLUS_MICRO;
case IIO_EV_INFO_HIGH_PASS_FILTER_3DB:
@@ -453,6 +474,7 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
}
+
return IIO_VAL_INT_PLUS_MICRO;
default:
@@ -472,19 +494,22 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
switch (info) {
case IIO_EV_INFO_VALUE:
- return mma8452_change_config(data, MMA8452_TRANSIENT_THS,
- val & MMA8452_TRANSIENT_THS_MASK);
+ if (val < 0 || val > MMA8452_TRANSIENT_THS_MASK)
+ return -EINVAL;
+
+ return mma8452_change_config(data, MMA8452_TRANSIENT_THS, val);
case IIO_EV_INFO_PERIOD:
steps = (val * USEC_PER_SEC + val2) /
mma8452_transient_time_step_us[
mma8452_get_odr_index(data)];
- if (steps > 0xff)
+ if (steps < 0 || steps > 0xff)
return -EINVAL;
return mma8452_change_config(data, MMA8452_TRANSIENT_COUNT,
steps);
+
case IIO_EV_INFO_HIGH_PASS_FILTER_3DB:
reg = i2c_smbus_read_byte_data(data->client,
MMA8452_TRANSIENT_CFG);
@@ -499,6 +524,7 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
}
+
return mma8452_change_config(data, MMA8452_TRANSIENT_CFG, reg);
default:
@@ -608,15 +634,16 @@ static irqreturn_t mma8452_trigger_handler(int irq, void *p)
u8 buffer[16]; /* 3 16-bit channels + padding + ts */
int ret;
- ret = mma8452_read(data, (__be16 *) buffer);
+ ret = mma8452_read(data, (__be16 *)buffer);
if (ret < 0)
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, buffer,
- iio_get_time_ns());
+ iio_get_time_ns());
done:
iio_trigger_notify_done(indio_dev->trig);
+
return IRQ_HANDLED;
}
@@ -674,10 +701,10 @@ static struct attribute_group mma8452_event_attribute_group = {
.modified = 1, \
.channel2 = IIO_MOD_##axis, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
- BIT(IIO_CHAN_INFO_CALIBBIAS), \
+ BIT(IIO_CHAN_INFO_CALIBBIAS), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
- BIT(IIO_CHAN_INFO_SCALE) | \
- BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY), \
+ BIT(IIO_CHAN_INFO_SCALE) | \
+ BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY), \
.scan_index = idx, \
.scan_type = { \
.sign = 's', \
@@ -780,6 +807,7 @@ static int mma8452_trigger_setup(struct iio_dev *indio_dev)
return ret;
indio_dev->trig = trig;
+
return 0;
}
@@ -849,7 +877,7 @@ static int mma8452_probe(struct i2c_client *client,
data->data_cfg = MMA8452_DATA_CFG_FS_2G;
ret = i2c_smbus_write_byte_data(client, MMA8452_DATA_CFG,
- data->data_cfg);
+ data->data_cfg);
if (ret < 0)
return ret;
@@ -891,14 +919,14 @@ static int mma8452_probe(struct i2c_client *client,
}
data->ctrl_reg1 = MMA8452_CTRL_ACTIVE |
- (MMA8452_CTRL_DR_DEFAULT << MMA8452_CTRL_DR_SHIFT);
+ (MMA8452_CTRL_DR_DEFAULT << MMA8452_CTRL_DR_SHIFT);
ret = i2c_smbus_write_byte_data(client, MMA8452_CTRL_REG1,
data->ctrl_reg1);
if (ret < 0)
goto trigger_cleanup;
ret = iio_triggered_buffer_setup(indio_dev, NULL,
- mma8452_trigger_handler, NULL);
+ mma8452_trigger_handler, NULL);
if (ret < 0)
goto trigger_cleanup;
@@ -968,6 +996,7 @@ static const struct of_device_id mma8452_dt_ids[] = {
{ .compatible = "fsl,mma8452" },
{ }
};
+MODULE_DEVICE_TABLE(of, mma8452_dt_ids);
static struct i2c_driver mma8452_driver = {
.driver = {
diff --git a/drivers/iio/accel/mma9551_core.c b/drivers/iio/accel/mma9551_core.c
index 2fd2a9956..c34c5ce81 100644
--- a/drivers/iio/accel/mma9551_core.c
+++ b/drivers/iio/accel/mma9551_core.c
@@ -297,7 +297,7 @@ EXPORT_SYMBOL(mma9551_read_status_byte);
* Returns: 0 on success, negative value on failure.
*/
int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
- u16 reg, u16 *val)
+ u16 reg, u16 *val)
{
int ret;
__be16 v;
@@ -328,12 +328,12 @@ EXPORT_SYMBOL(mma9551_read_config_word);
* Returns: 0 on success, negative value on failure.
*/
int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
- u16 reg, u16 val)
+ u16 reg, u16 val)
{
__be16 v = cpu_to_be16(val);
return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG, reg,
- (u8 *) &v, 2, NULL, 0);
+ (u8 *)&v, 2, NULL, 0);
}
EXPORT_SYMBOL(mma9551_write_config_word);
@@ -373,7 +373,7 @@ EXPORT_SYMBOL(mma9551_read_status_word);
* @client: I2C client
* @app_id: Application ID
* @reg: Application register
- * @len: Length of array to read in bytes
+ * @len: Length of array to read (in words)
* @buf: Array of words to read
*
* Read multiple configuration registers (word-sized registers).
@@ -385,23 +385,22 @@ EXPORT_SYMBOL(mma9551_read_status_word);
* Returns: 0 on success, negative value on failure.
*/
int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
- u16 reg, u8 len, u16 *buf)
+ u16 reg, u8 len, u16 *buf)
{
int ret, i;
- int len_words = len / sizeof(u16);
__be16 be_buf[MMA9551_MAX_MAILBOX_DATA_REGS / 2];
- if (len_words > ARRAY_SIZE(be_buf)) {
+ if (len > ARRAY_SIZE(be_buf)) {
dev_err(&client->dev, "Invalid buffer size %d\n", len);
return -EINVAL;
}
ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG,
- reg, NULL, 0, (u8 *) be_buf, len);
+ reg, NULL, 0, (u8 *)be_buf, len * sizeof(u16));
if (ret < 0)
return ret;
- for (i = 0; i < len_words; i++)
+ for (i = 0; i < len; i++)
buf[i] = be16_to_cpu(be_buf[i]);
return 0;
@@ -413,7 +412,7 @@ EXPORT_SYMBOL(mma9551_read_config_words);
* @client: I2C client
* @app_id: Application ID
* @reg: Application register
- * @len: Length of array to read in bytes
+ * @len: Length of array to read (in words)
* @buf: Array of words to read
*
* Read multiple status registers (word-sized registers).
@@ -428,20 +427,19 @@ int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
u16 reg, u8 len, u16 *buf)
{
int ret, i;
- int len_words = len / sizeof(u16);
__be16 be_buf[MMA9551_MAX_MAILBOX_DATA_REGS / 2];
- if (len_words > ARRAY_SIZE(be_buf)) {
+ if (len > ARRAY_SIZE(be_buf)) {
dev_err(&client->dev, "Invalid buffer size %d\n", len);
return -EINVAL;
}
ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS,
- reg, NULL, 0, (u8 *) be_buf, len);
+ reg, NULL, 0, (u8 *)be_buf, len * sizeof(u16));
if (ret < 0)
return ret;
- for (i = 0; i < len_words; i++)
+ for (i = 0; i < len; i++)
buf[i] = be16_to_cpu(be_buf[i]);
return 0;
@@ -453,7 +451,7 @@ EXPORT_SYMBOL(mma9551_read_status_words);
* @client: I2C client
* @app_id: Application ID
* @reg: Application register
- * @len: Length of array to write in bytes
+ * @len: Length of array to write (in words)
* @buf: Array of words to write
*
* Write multiple configuration registers (word-sized registers).
@@ -468,19 +466,18 @@ int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
u16 reg, u8 len, u16 *buf)
{
int i;
- int len_words = len / sizeof(u16);
__be16 be_buf[(MMA9551_MAX_MAILBOX_DATA_REGS - 1) / 2];
- if (len_words > ARRAY_SIZE(be_buf)) {
+ if (len > ARRAY_SIZE(be_buf)) {
dev_err(&client->dev, "Invalid buffer size %d\n", len);
return -EINVAL;
}
- for (i = 0; i < len_words; i++)
+ for (i = 0; i < len; i++)
be_buf[i] = cpu_to_be16(buf[i]);
return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG,
- reg, (u8 *) be_buf, len, NULL, 0);
+ reg, (u8 *)be_buf, len * sizeof(u16), NULL, 0);
}
EXPORT_SYMBOL(mma9551_write_config_words);
diff --git a/drivers/iio/accel/mma9551_core.h b/drivers/iio/accel/mma9551_core.h
index 79939e408..5e88e6454 100644
--- a/drivers/iio/accel/mma9551_core.h
+++ b/drivers/iio/accel/mma9551_core.h
@@ -53,13 +53,13 @@ int mma9551_write_config_byte(struct i2c_client *client, u8 app_id,
int mma9551_read_status_byte(struct i2c_client *client, u8 app_id,
u16 reg, u8 *val);
int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
- u16 reg, u16 *val);
+ u16 reg, u16 *val);
int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
- u16 reg, u16 val);
+ u16 reg, u16 val);
int mma9551_read_status_word(struct i2c_client *client, u8 app_id,
u16 reg, u16 *val);
int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
- u16 reg, u8 len, u16 *buf);
+ u16 reg, u8 len, u16 *buf);
int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
u16 reg, u8 len, u16 *buf);
int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index 8bfc61824..771858cb6 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -182,6 +182,10 @@ struct mma9553_conf_regs {
struct mma9553_data {
struct i2c_client *client;
+ /*
+ * 1. Serialize access to HW (requested by mma9551_core API).
+ * 2. Serialize sequences that power on/off the device and access HW.
+ */
struct mutex mutex;
struct mma9553_conf_regs conf;
struct mma9553_event events[MMA9553_EVENTS_INFO_SIZE];
@@ -322,7 +326,8 @@ static int mma9553_read_activity_stepcnt(struct mma9553_data *data,
int ret;
ret = mma9551_read_status_words(data->client, MMA9551_APPID_PEDOMETER,
- MMA9553_REG_STATUS, sizeof(u32), buf);
+ MMA9553_REG_STATUS, ARRAY_SIZE(buf),
+ buf);
if (ret < 0) {
dev_err(&data->client->dev,
"error reading status and stepcnt\n");
@@ -342,10 +347,10 @@ static int mma9553_conf_gpio(struct mma9553_data *data)
struct mma9553_event *ev_step_detect;
bool activity_enabled;
- activity_enabled =
- mma9553_is_any_event_enabled(data, true, IIO_ACTIVITY);
- ev_step_detect =
- mma9553_get_event(data, IIO_STEPS, IIO_NO_MOD, IIO_EV_DIR_NONE);
+ activity_enabled = mma9553_is_any_event_enabled(data, true,
+ IIO_ACTIVITY);
+ ev_step_detect = mma9553_get_event(data, IIO_STEPS, IIO_NO_MOD,
+ IIO_EV_DIR_NONE);
/*
* If both step detector and activity are enabled, use the MRGFL bit.
@@ -371,9 +376,8 @@ static int mma9553_conf_gpio(struct mma9553_data *data)
return ret;
}
- ret = mma9551_gpio_config(data->client,
- MMA9553_DEFAULT_GPIO_PIN,
- appid, bitnum, MMA9553_DEFAULT_GPIO_POLARITY);
+ ret = mma9551_gpio_config(data->client, MMA9553_DEFAULT_GPIO_PIN, appid,
+ bitnum, MMA9553_DEFAULT_GPIO_POLARITY);
if (ret < 0)
return ret;
data->gpio_bitnum = bitnum;
@@ -394,17 +398,16 @@ static int mma9553_init(struct mma9553_data *data)
* a device identification command to differentiate the MMA9553L
* from the MMA9550L.
*/
- ret =
- mma9551_read_config_words(data->client, MMA9551_APPID_PEDOMETER,
- MMA9553_REG_CONF_SLEEPMIN,
- sizeof(data->conf), (u16 *) &data->conf);
+ ret = mma9551_read_config_words(data->client, MMA9551_APPID_PEDOMETER,
+ MMA9553_REG_CONF_SLEEPMIN,
+ sizeof(data->conf) / sizeof(u16),
+ (u16 *)&data->conf);
if (ret < 0) {
dev_err(&data->client->dev,
"failed to read configuration registers\n");
return ret;
}
-
/* Reset GPIO */
data->gpio_bitnum = MMA9553_MAX_BITNUM;
ret = mma9553_conf_gpio(data);
@@ -419,18 +422,18 @@ static int mma9553_init(struct mma9553_data *data)
data->conf.sleepmin = MMA9553_DEFAULT_SLEEPMIN;
data->conf.sleepmax = MMA9553_DEFAULT_SLEEPMAX;
data->conf.sleepthd = MMA9553_DEFAULT_SLEEPTHD;
- data->conf.config =
- mma9553_set_bits(data->conf.config, 1, MMA9553_MASK_CONF_CONFIG);
+ data->conf.config = mma9553_set_bits(data->conf.config, 1,
+ MMA9553_MASK_CONF_CONFIG);
/*
* Clear the activity debounce counter when the activity level changes,
* so that the confidence level applies for any activity level.
*/
data->conf.config = mma9553_set_bits(data->conf.config, 1,
MMA9553_MASK_CONF_ACT_DBCNTM);
- ret =
- mma9551_write_config_words(data->client, MMA9551_APPID_PEDOMETER,
- MMA9553_REG_CONF_SLEEPMIN,
- sizeof(data->conf), (u16 *) &data->conf);
+ ret = mma9551_write_config_words(data->client, MMA9551_APPID_PEDOMETER,
+ MMA9553_REG_CONF_SLEEPMIN,
+ sizeof(data->conf) / sizeof(u16),
+ (u16 *)&data->conf);
if (ret < 0) {
dev_err(&data->client->dev,
"failed to write configuration registers\n");
@@ -567,7 +570,7 @@ static int mma9553_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBHEIGHT:
tmp = mma9553_get_bits(data->conf.height_weight,
- MMA9553_MASK_CONF_HEIGHT);
+ MMA9553_MASK_CONF_HEIGHT);
*val = tmp / 100; /* cm to m */
*val2 = (tmp % 100) * 10000;
return IIO_VAL_INT_PLUS_MICRO;
@@ -719,7 +722,6 @@ static int mma9553_read_event_config(struct iio_dev *indio_dev,
enum iio_event_type type,
enum iio_event_direction dir)
{
-
struct mma9553_data *data = iio_priv(indio_dev);
struct mma9553_event *event;
@@ -1026,22 +1028,22 @@ static irqreturn_t mma9553_event_handler(int irq, void *private)
return IRQ_HANDLED;
}
- ev_prev_activity =
- mma9553_get_event(data, IIO_ACTIVITY,
- mma9553_activity_to_mod(data->activity),
- IIO_EV_DIR_FALLING);
- ev_activity =
- mma9553_get_event(data, IIO_ACTIVITY,
- mma9553_activity_to_mod(activity),
- IIO_EV_DIR_RISING);
- ev_step_detect =
- mma9553_get_event(data, IIO_STEPS, IIO_NO_MOD, IIO_EV_DIR_NONE);
+ ev_prev_activity = mma9553_get_event(data, IIO_ACTIVITY,
+ mma9553_activity_to_mod(
+ data->activity),
+ IIO_EV_DIR_FALLING);
+ ev_activity = mma9553_get_event(data, IIO_ACTIVITY,
+ mma9553_activity_to_mod(activity),
+ IIO_EV_DIR_RISING);
+ ev_step_detect = mma9553_get_event(data, IIO_STEPS, IIO_NO_MOD,
+ IIO_EV_DIR_NONE);
if (ev_step_detect->enabled && (stepcnt != data->stepcnt)) {
data->stepcnt = stepcnt;
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_STEPS, 0, IIO_NO_MOD,
- IIO_EV_DIR_NONE, IIO_EV_TYPE_CHANGE, 0, 0, 0),
+ IIO_EV_DIR_NONE,
+ IIO_EV_TYPE_CHANGE, 0, 0, 0),
data->timestamp);
}
@@ -1051,17 +1053,19 @@ static irqreturn_t mma9553_event_handler(int irq, void *private)
if (ev_prev_activity && ev_prev_activity->enabled)
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_ACTIVITY, 0,
- ev_prev_activity->info->mod,
- IIO_EV_DIR_FALLING,
- IIO_EV_TYPE_THRESH, 0, 0, 0),
+ ev_prev_activity->info->mod,
+ IIO_EV_DIR_FALLING,
+ IIO_EV_TYPE_THRESH, 0, 0,
+ 0),
data->timestamp);
if (ev_activity && ev_activity->enabled)
iio_push_event(indio_dev,
IIO_EVENT_CODE(IIO_ACTIVITY, 0,
- ev_activity->info->mod,
- IIO_EV_DIR_RISING,
- IIO_EV_TYPE_THRESH, 0, 0, 0),
+ ev_activity->info->mod,
+ IIO_EV_DIR_RISING,
+ IIO_EV_TYPE_THRESH, 0, 0,
+ 0),
data->timestamp);
}
mutex_unlock(&data->mutex);
@@ -1145,7 +1149,7 @@ static int mma9553_probe(struct i2c_client *client,
if (client->irq < 0)
client->irq = mma9553_gpio_probe(client);
- if (client->irq >= 0) {
+ if (client->irq > 0) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
mma9553_irq_handler,
mma9553_event_handler,
@@ -1156,7 +1160,6 @@ static int mma9553_probe(struct i2c_client *client,
client->irq);
goto out_poweroff;
}
-
}
ret = iio_device_register(indio_dev);
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index aa1001931..468f21fa2 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -26,6 +26,7 @@
#define LSM303DLH_ACCEL_DEV_NAME "lsm303dlh_accel"
#define LSM303DLM_ACCEL_DEV_NAME "lsm303dlm_accel"
#define LSM330_ACCEL_DEV_NAME "lsm330_accel"
+#define LSM303AGR_ACCEL_DEV_NAME "lsm303agr_accel"
/**
* struct st_sensors_platform_data - default accel platform data
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 4002e6410..fb9311110 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -149,8 +149,6 @@
#define ST_ACCEL_4_BDU_MASK 0x40
#define ST_ACCEL_4_DRDY_IRQ_ADDR 0x21
#define ST_ACCEL_4_DRDY_IRQ_INT1_MASK 0x04
-#define ST_ACCEL_4_IG1_EN_ADDR 0x21
-#define ST_ACCEL_4_IG1_EN_MASK 0x08
#define ST_ACCEL_4_MULTIREAD_BIT true
/* CUSTOM VALUES FOR SENSOR 5 */
@@ -226,12 +224,14 @@ static const struct iio_chan_spec st_accel_16bit_channels[] = {
static const struct st_sensor_settings st_accel_sensors_settings[] = {
{
.wai = ST_ACCEL_1_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS3DH_ACCEL_DEV_NAME,
[1] = LSM303DLHC_ACCEL_DEV_NAME,
[2] = LSM330D_ACCEL_DEV_NAME,
[3] = LSM330DL_ACCEL_DEV_NAME,
[4] = LSM330DLC_ACCEL_DEV_NAME,
+ [5] = LSM303AGR_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
@@ -297,6 +297,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
{
.wai = ST_ACCEL_2_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS331DLH_ACCEL_DEV_NAME,
[1] = LSM303DL_ACCEL_DEV_NAME,
@@ -359,6 +360,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
{
.wai = ST_ACCEL_3_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LSM330_ACCEL_DEV_NAME,
},
@@ -437,6 +439,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
{
.wai = ST_ACCEL_4_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS3LV02DL_ACCEL_DEV_NAME,
},
@@ -484,16 +487,13 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.drdy_irq = {
.addr = ST_ACCEL_4_DRDY_IRQ_ADDR,
.mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK,
- .ig1 = {
- .en_addr = ST_ACCEL_4_IG1_EN_ADDR,
- .en_mask = ST_ACCEL_4_IG1_EN_MASK,
- },
},
.multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT,
.bootime = 2, /* guess */
},
{
.wai = ST_ACCEL_5_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS331DL_ACCEL_DEV_NAME,
},
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index d4ad72ca4..8b9cc84fd 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -68,6 +68,10 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lsm330-accel",
.data = LSM330_ACCEL_DEV_NAME,
},
+ {
+ .compatible = "st,lsm303agr-accel",
+ .data = LSM303AGR_ACCEL_DEV_NAME,
+ },
{},
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -116,13 +120,13 @@ static const struct i2c_device_id st_accel_id_table[] = {
{ LSM303DL_ACCEL_DEV_NAME },
{ LSM303DLM_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
+ { LSM303AGR_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
static struct i2c_driver st_accel_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = "st-accel-i2c",
.of_match_table = of_match_ptr(st_accel_of_match),
},
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 12ec29389..54b61a396 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -57,6 +57,7 @@ static const struct spi_device_id st_accel_id_table[] = {
{ LSM303DL_ACCEL_DEV_NAME },
{ LSM303DLM_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
+ { LSM303AGR_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(spi, st_accel_id_table);
diff --git a/drivers/iio/accel/stk8312.c b/drivers/iio/accel/stk8312.c
index d211d9f39..c764af284 100644
--- a/drivers/iio/accel/stk8312.c
+++ b/drivers/iio/accel/stk8312.c
@@ -11,17 +11,25 @@
*/
#include <linux/acpi.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
+#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
+#include <linux/iio/buffer.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/trigger_consumer.h>
#define STK8312_REG_XOUT 0x00
#define STK8312_REG_YOUT 0x01
#define STK8312_REG_ZOUT 0x02
+#define STK8312_REG_INTSU 0x06
#define STK8312_REG_MODE 0x07
+#define STK8312_REG_SR 0x08
#define STK8312_REG_STH 0x13
#define STK8312_REG_RESET 0x20
#define STK8312_REG_AFECTRL 0x24
@@ -29,14 +37,21 @@
#define STK8312_REG_OTPDATA 0x3E
#define STK8312_REG_OTPCTRL 0x3F
-#define STK8312_MODE_ACTIVE 1
-#define STK8312_MODE_STANDBY 0
-#define STK8312_MODE_MASK 0x01
-#define STK8312_RNG_MASK 0xC0
+#define STK8312_MODE_ACTIVE BIT(0)
+#define STK8312_MODE_STANDBY 0x00
+#define STK8312_MODE_INT_AH_PP 0xC0 /* active-high, push-pull */
+#define STK8312_DREADY_BIT BIT(4)
+#define STK8312_RNG_6G 1
#define STK8312_RNG_SHIFT 6
-#define STK8312_READ_RETRIES 16
+#define STK8312_RNG_MASK GENMASK(7, 6)
+#define STK8312_SR_MASK GENMASK(2, 0)
+#define STK8312_SR_400HZ_IDX 0
+#define STK8312_ALL_CHANNEL_MASK GENMASK(2, 0)
+#define STK8312_ALL_CHANNEL_SIZE 3
#define STK8312_DRIVER_NAME "stk8312"
+#define STK8312_GPIO "stk8312_gpio"
+#define STK8312_IRQ_NAME "stk8312_event"
/*
* The accelerometer has two measurement ranges:
@@ -53,32 +68,56 @@ static const int stk8312_scale_table[][2] = {
{0, 461600}, {1, 231100}
};
-#define STK8312_ACCEL_CHANNEL(reg, axis) { \
- .type = IIO_ACCEL, \
- .address = reg, \
- .modified = 1, \
- .channel2 = IIO_MOD_##axis, \
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
- .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+static const struct {
+ int val;
+ int val2;
+} stk8312_samp_freq_table[] = {
+ {400, 0}, {200, 0}, {100, 0}, {50, 0}, {25, 0},
+ {12, 500000}, {6, 250000}, {3, 125000}
+};
+
+#define STK8312_ACCEL_CHANNEL(index, reg, axis) { \
+ .type = IIO_ACCEL, \
+ .address = reg, \
+ .modified = 1, \
+ .channel2 = IIO_MOD_##axis, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \
+ BIT(IIO_CHAN_INFO_SAMP_FREQ), \
+ .scan_index = index, \
+ .scan_type = { \
+ .sign = 's', \
+ .realbits = 8, \
+ .storagebits = 8, \
+ .endianness = IIO_CPU, \
+ }, \
}
static const struct iio_chan_spec stk8312_channels[] = {
- STK8312_ACCEL_CHANNEL(STK8312_REG_XOUT, X),
- STK8312_ACCEL_CHANNEL(STK8312_REG_YOUT, Y),
- STK8312_ACCEL_CHANNEL(STK8312_REG_ZOUT, Z),
+ STK8312_ACCEL_CHANNEL(0, STK8312_REG_XOUT, X),
+ STK8312_ACCEL_CHANNEL(1, STK8312_REG_YOUT, Y),
+ STK8312_ACCEL_CHANNEL(2, STK8312_REG_ZOUT, Z),
+ IIO_CHAN_SOFT_TIMESTAMP(3),
};
struct stk8312_data {
struct i2c_client *client;
struct mutex lock;
- int range;
+ u8 range;
+ u8 sample_rate_idx;
u8 mode;
+ struct iio_trigger *dready_trig;
+ bool dready_trigger_on;
+ s8 buffer[16]; /* 3x8-bit channels + 5x8 padding + 64-bit timestamp */
};
static IIO_CONST_ATTR(in_accel_scale_available, STK8312_SCALE_AVAIL);
+static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("3.125 6.25 12.5 25 50 100 200 400");
+
static struct attribute *stk8312_attributes[] = {
&iio_const_attr_in_accel_scale_available.dev_attr.attr,
+ &iio_const_attr_sampling_frequency_available.dev_attr.attr,
NULL,
};
@@ -105,22 +144,25 @@ static int stk8312_otp_init(struct stk8312_data *data)
if (ret < 0)
goto exit_err;
count--;
- } while (!(ret & 0x80) && count > 0);
+ } while (!(ret & BIT(7)) && count > 0);
- if (count == 0)
+ if (count == 0) {
+ ret = -ETIMEDOUT;
goto exit_err;
+ }
ret = i2c_smbus_read_byte_data(client, STK8312_REG_OTPDATA);
+ if (ret == 0)
+ ret = -EINVAL;
if (ret < 0)
goto exit_err;
- ret = i2c_smbus_write_byte_data(data->client,
- STK8312_REG_AFECTRL, ret);
+ ret = i2c_smbus_write_byte_data(data->client, STK8312_REG_AFECTRL, ret);
if (ret < 0)
goto exit_err;
msleep(150);
- return ret;
+ return 0;
exit_err:
dev_err(&client->dev, "failed to initialize sensor\n");
@@ -130,31 +172,19 @@ exit_err:
static int stk8312_set_mode(struct stk8312_data *data, u8 mode)
{
int ret;
- u8 masked_reg;
struct i2c_client *client = data->client;
- if (mode > 1)
- return -EINVAL;
- else if (mode == data->mode)
+ if (mode == data->mode)
return 0;
- ret = i2c_smbus_read_byte_data(client, STK8312_REG_MODE);
- if (ret < 0) {
- dev_err(&client->dev, "failed to change sensor mode\n");
- return ret;
- }
- masked_reg = ret & (~STK8312_MODE_MASK);
- masked_reg |= mode;
-
- ret = i2c_smbus_write_byte_data(client,
- STK8312_REG_MODE, masked_reg);
+ ret = i2c_smbus_write_byte_data(client, STK8312_REG_MODE, mode);
if (ret < 0) {
dev_err(&client->dev, "failed to change sensor mode\n");
return ret;
}
data->mode = mode;
- if (mode == STK8312_MODE_ACTIVE) {
+ if (mode & STK8312_MODE_ACTIVE) {
/* Need to run OTP sequence before entering active mode */
usleep_range(1000, 5000);
ret = stk8312_otp_init(data);
@@ -163,6 +193,92 @@ static int stk8312_set_mode(struct stk8312_data *data, u8 mode)
return ret;
}
+static int stk8312_set_interrupts(struct stk8312_data *data, u8 int_mask)
+{
+ int ret;
+ u8 mode;
+ struct i2c_client *client = data->client;
+
+ mode = data->mode;
+ /* We need to go in standby mode to modify registers */
+ ret = stk8312_set_mode(data, STK8312_MODE_STANDBY);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_smbus_write_byte_data(client, STK8312_REG_INTSU, int_mask);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to set interrupts\n");
+ stk8312_set_mode(data, mode);
+ return ret;
+ }
+
+ return stk8312_set_mode(data, mode);
+}
+
+static int stk8312_data_rdy_trigger_set_state(struct iio_trigger *trig,
+ bool state)
+{
+ struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+ struct stk8312_data *data = iio_priv(indio_dev);
+ int ret;
+
+ if (state)
+ ret = stk8312_set_interrupts(data, STK8312_DREADY_BIT);
+ else
+ ret = stk8312_set_interrupts(data, 0x00);
+
+ if (ret < 0) {
+ dev_err(&data->client->dev, "failed to set trigger state\n");
+ return ret;
+ }
+
+ data->dready_trigger_on = state;
+
+ return 0;
+}
+
+static const struct iio_trigger_ops stk8312_trigger_ops = {
+ .set_trigger_state = stk8312_data_rdy_trigger_set_state,
+ .owner = THIS_MODULE,
+};
+
+static int stk8312_set_sample_rate(struct stk8312_data *data, u8 rate)
+{
+ int ret;
+ u8 masked_reg;
+ u8 mode;
+ struct i2c_client *client = data->client;
+
+ if (rate == data->sample_rate_idx)
+ return 0;
+
+ mode = data->mode;
+ /* We need to go in standby mode to modify registers */
+ ret = stk8312_set_mode(data, STK8312_MODE_STANDBY);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_smbus_read_byte_data(client, STK8312_REG_SR);
+ if (ret < 0)
+ goto err_activate;
+
+ masked_reg = (ret & (~STK8312_SR_MASK)) | rate;
+
+ ret = i2c_smbus_write_byte_data(client, STK8312_REG_SR, masked_reg);
+ if (ret < 0)
+ goto err_activate;
+
+ data->sample_rate_idx = rate;
+
+ return stk8312_set_mode(data, mode);
+
+err_activate:
+ dev_err(&client->dev, "failed to set sampling rate\n");
+ stk8312_set_mode(data, mode);
+
+ return ret;
+}
+
static int stk8312_set_range(struct stk8312_data *data, u8 range)
{
int ret;
@@ -182,21 +298,25 @@ static int stk8312_set_range(struct stk8312_data *data, u8 range)
return ret;
ret = i2c_smbus_read_byte_data(client, STK8312_REG_STH);
- if (ret < 0) {
- dev_err(&client->dev, "failed to change sensor range\n");
- return ret;
- }
+ if (ret < 0)
+ goto err_activate;
masked_reg = ret & (~STK8312_RNG_MASK);
masked_reg |= range << STK8312_RNG_SHIFT;
ret = i2c_smbus_write_byte_data(client, STK8312_REG_STH, masked_reg);
if (ret < 0)
- dev_err(&client->dev, "failed to change sensor range\n");
- else
- data->range = range;
+ goto err_activate;
+
+ data->range = range;
return stk8312_set_mode(data, mode);
+
+err_activate:
+ dev_err(&client->dev, "failed to change sensor range\n");
+ stk8312_set_mode(data, mode);
+
+ return ret;
}
static int stk8312_read_accel(struct stk8312_data *data, u8 address)
@@ -208,12 +328,10 @@ static int stk8312_read_accel(struct stk8312_data *data, u8 address)
return -EINVAL;
ret = i2c_smbus_read_byte_data(client, address);
- if (ret < 0) {
+ if (ret < 0)
dev_err(&client->dev, "register read failed\n");
- return ret;
- }
- return sign_extend32(ret, 7);
+ return ret;
}
static int stk8312_read_raw(struct iio_dev *indio_dev,
@@ -221,20 +339,40 @@ static int stk8312_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, long mask)
{
struct stk8312_data *data = iio_priv(indio_dev);
-
- if (chan->type != IIO_ACCEL)
- return -EINVAL;
+ int ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
+ if (iio_buffer_enabled(indio_dev))
+ return -EBUSY;
mutex_lock(&data->lock);
- *val = stk8312_read_accel(data, chan->address);
+ ret = stk8312_set_mode(data, data->mode | STK8312_MODE_ACTIVE);
+ if (ret < 0) {
+ mutex_unlock(&data->lock);
+ return ret;
+ }
+ ret = stk8312_read_accel(data, chan->address);
+ if (ret < 0) {
+ stk8312_set_mode(data,
+ data->mode & (~STK8312_MODE_ACTIVE));
+ mutex_unlock(&data->lock);
+ return ret;
+ }
+ *val = sign_extend32(ret, 7);
+ ret = stk8312_set_mode(data,
+ data->mode & (~STK8312_MODE_ACTIVE));
mutex_unlock(&data->lock);
+ if (ret < 0)
+ return ret;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
*val = stk8312_scale_table[data->range - 1][0];
*val2 = stk8312_scale_table[data->range - 1][1];
return IIO_VAL_INT_PLUS_MICRO;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ *val = stk8312_samp_freq_table[data->sample_rate_idx].val;
+ *val2 = stk8312_samp_freq_table[data->sample_rate_idx].val2;
+ return IIO_VAL_INT_PLUS_MICRO;
}
return -EINVAL;
@@ -265,6 +403,20 @@ static int stk8312_write_raw(struct iio_dev *indio_dev,
mutex_unlock(&data->lock);
return ret;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ for (i = 0; i < ARRAY_SIZE(stk8312_samp_freq_table); i++)
+ if (val == stk8312_samp_freq_table[i].val &&
+ val2 == stk8312_samp_freq_table[i].val2) {
+ index = i;
+ break;
+ }
+ if (index < 0)
+ return -EINVAL;
+ mutex_lock(&data->lock);
+ ret = stk8312_set_sample_rate(data, index);
+ mutex_unlock(&data->lock);
+
+ return ret;
}
return -EINVAL;
@@ -277,6 +429,105 @@ static const struct iio_info stk8312_info = {
.attrs = &stk8312_attribute_group,
};
+static irqreturn_t stk8312_trigger_handler(int irq, void *p)
+{
+ struct iio_poll_func *pf = p;
+ struct iio_dev *indio_dev = pf->indio_dev;
+ struct stk8312_data *data = iio_priv(indio_dev);
+ int bit, ret, i = 0;
+
+ mutex_lock(&data->lock);
+ /*
+ * Do a bulk read if all channels are requested,
+ * from 0x00 (XOUT) to 0x02 (ZOUT)
+ */
+ if (*(indio_dev->active_scan_mask) == STK8312_ALL_CHANNEL_MASK) {
+ ret = i2c_smbus_read_i2c_block_data(data->client,
+ STK8312_REG_XOUT,
+ STK8312_ALL_CHANNEL_SIZE,
+ data->buffer);
+ if (ret < STK8312_ALL_CHANNEL_SIZE) {
+ dev_err(&data->client->dev, "register read failed\n");
+ mutex_unlock(&data->lock);
+ goto err;
+ }
+ } else {
+ for_each_set_bit(bit, indio_dev->active_scan_mask,
+ indio_dev->masklength) {
+ ret = stk8312_read_accel(data, bit);
+ if (ret < 0) {
+ mutex_unlock(&data->lock);
+ goto err;
+ }
+ data->buffer[i++] = ret;
+ }
+ }
+ mutex_unlock(&data->lock);
+
+ iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ pf->timestamp);
+err:
+ iio_trigger_notify_done(indio_dev->trig);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t stk8312_data_rdy_trig_poll(int irq, void *private)
+{
+ struct iio_dev *indio_dev = private;
+ struct stk8312_data *data = iio_priv(indio_dev);
+
+ if (data->dready_trigger_on)
+ iio_trigger_poll(data->dready_trig);
+
+ return IRQ_HANDLED;
+}
+
+static int stk8312_buffer_preenable(struct iio_dev *indio_dev)
+{
+ struct stk8312_data *data = iio_priv(indio_dev);
+
+ return stk8312_set_mode(data, data->mode | STK8312_MODE_ACTIVE);
+}
+
+static int stk8312_buffer_postdisable(struct iio_dev *indio_dev)
+{
+ struct stk8312_data *data = iio_priv(indio_dev);
+
+ return stk8312_set_mode(data, data->mode & (~STK8312_MODE_ACTIVE));
+}
+
+static const struct iio_buffer_setup_ops stk8312_buffer_setup_ops = {
+ .preenable = stk8312_buffer_preenable,
+ .postenable = iio_triggered_buffer_postenable,
+ .predisable = iio_triggered_buffer_predisable,
+ .postdisable = stk8312_buffer_postdisable,
+};
+
+static int stk8312_gpio_probe(struct i2c_client *client)
+{
+ struct device *dev;
+ struct gpio_desc *gpio;
+ int ret;
+
+ if (!client)
+ return -EINVAL;
+
+ dev = &client->dev;
+
+ /* data ready gpio interrupt pin */
+ gpio = devm_gpiod_get_index(dev, STK8312_GPIO, 0, GPIOD_IN);
+ if (IS_ERR(gpio)) {
+ dev_err(dev, "acpi gpio get index failed\n");
+ return PTR_ERR(gpio);
+ }
+
+ ret = gpiod_to_irq(gpio);
+ dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
+
+ return ret;
+}
+
static int stk8312_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -308,30 +559,91 @@ static int stk8312_probe(struct i2c_client *client,
dev_err(&client->dev, "failed to reset sensor\n");
return ret;
}
- ret = stk8312_set_range(data, 1);
+ data->sample_rate_idx = STK8312_SR_400HZ_IDX;
+ ret = stk8312_set_range(data, STK8312_RNG_6G);
if (ret < 0)
return ret;
- ret = stk8312_set_mode(data, STK8312_MODE_ACTIVE);
+ ret = stk8312_set_mode(data,
+ STK8312_MODE_INT_AH_PP | STK8312_MODE_ACTIVE);
if (ret < 0)
return ret;
+ if (client->irq < 0)
+ client->irq = stk8312_gpio_probe(client);
+
+ if (client->irq >= 0) {
+ ret = devm_request_threaded_irq(&client->dev, client->irq,
+ stk8312_data_rdy_trig_poll,
+ NULL,
+ IRQF_TRIGGER_RISING |
+ IRQF_ONESHOT,
+ STK8312_IRQ_NAME,
+ indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "request irq %d failed\n",
+ client->irq);
+ goto err_power_off;
+ }
+
+ data->dready_trig = devm_iio_trigger_alloc(&client->dev,
+ "%s-dev%d",
+ indio_dev->name,
+ indio_dev->id);
+ if (!data->dready_trig) {
+ ret = -ENOMEM;
+ goto err_power_off;
+ }
+
+ data->dready_trig->dev.parent = &client->dev;
+ data->dready_trig->ops = &stk8312_trigger_ops;
+ iio_trigger_set_drvdata(data->dready_trig, indio_dev);
+ ret = iio_trigger_register(data->dready_trig);
+ if (ret) {
+ dev_err(&client->dev, "iio trigger register failed\n");
+ goto err_power_off;
+ }
+ }
+
+ ret = iio_triggered_buffer_setup(indio_dev,
+ iio_pollfunc_store_time,
+ stk8312_trigger_handler,
+ &stk8312_buffer_setup_ops);
+ if (ret < 0) {
+ dev_err(&client->dev, "iio triggered buffer setup failed\n");
+ goto err_trigger_unregister;
+ }
+
ret = iio_device_register(indio_dev);
if (ret < 0) {
dev_err(&client->dev, "device_register failed\n");
- stk8312_set_mode(data, STK8312_MODE_STANDBY);
+ goto err_buffer_cleanup;
}
+ return 0;
+
+err_buffer_cleanup:
+ iio_triggered_buffer_cleanup(indio_dev);
+err_trigger_unregister:
+ if (data->dready_trig)
+ iio_trigger_unregister(data->dready_trig);
+err_power_off:
+ stk8312_set_mode(data, STK8312_MODE_STANDBY);
return ret;
}
static int stk8312_remove(struct i2c_client *client)
{
struct iio_dev *indio_dev = i2c_get_clientdata(client);
+ struct stk8312_data *data = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
+
+ if (data->dready_trig)
+ iio_trigger_unregister(data->dready_trig);
- return stk8312_set_mode(iio_priv(indio_dev), STK8312_MODE_STANDBY);
+ return stk8312_set_mode(data, STK8312_MODE_STANDBY);
}
#ifdef CONFIG_PM_SLEEP
@@ -341,7 +653,7 @@ static int stk8312_suspend(struct device *dev)
data = iio_priv(i2c_get_clientdata(to_i2c_client(dev)));
- return stk8312_set_mode(data, STK8312_MODE_STANDBY);
+ return stk8312_set_mode(data, data->mode & (~STK8312_MODE_ACTIVE));
}
static int stk8312_resume(struct device *dev)
@@ -350,7 +662,7 @@ static int stk8312_resume(struct device *dev)
data = iio_priv(i2c_get_clientdata(to_i2c_client(dev)));
- return stk8312_set_mode(data, STK8312_MODE_ACTIVE);
+ return stk8312_set_mode(data, data->mode | STK8312_MODE_ACTIVE);
}
static SIMPLE_DEV_PM_OPS(stk8312_pm_ops, stk8312_suspend, stk8312_resume);
@@ -364,6 +676,7 @@ static const struct i2c_device_id stk8312_i2c_id[] = {
{"STK8312", 0},
{}
};
+MODULE_DEVICE_TABLE(i2c, stk8312_i2c_id);
static const struct acpi_device_id stk8312_acpi_id[] = {
{"STK8312", 0},
@@ -374,7 +687,7 @@ MODULE_DEVICE_TABLE(acpi, stk8312_acpi_id);
static struct i2c_driver stk8312_driver = {
.driver = {
- .name = "stk8312",
+ .name = STK8312_DRIVER_NAME,
.pm = STK8312_PM_OPS,
.acpi_match_table = ACPI_PTR(stk8312_acpi_id),
},
diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c
index 30950c6b3..80f77d870 100644
--- a/drivers/iio/accel/stk8ba50.c
+++ b/drivers/iio/accel/stk8ba50.c
@@ -11,26 +11,42 @@
*/
#include <linux/acpi.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
+#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/iio/buffer.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/trigger_consumer.h>
#define STK8BA50_REG_XOUT 0x02
#define STK8BA50_REG_YOUT 0x04
#define STK8BA50_REG_ZOUT 0x06
#define STK8BA50_REG_RANGE 0x0F
+#define STK8BA50_REG_BWSEL 0x10
#define STK8BA50_REG_POWMODE 0x11
#define STK8BA50_REG_SWRST 0x14
+#define STK8BA50_REG_INTEN2 0x17
+#define STK8BA50_REG_INTMAP2 0x1A
#define STK8BA50_MODE_NORMAL 0
#define STK8BA50_MODE_SUSPEND 1
#define STK8BA50_MODE_POWERBIT BIT(7)
#define STK8BA50_DATA_SHIFT 6
#define STK8BA50_RESET_CMD 0xB6
+#define STK8BA50_SR_1792HZ_IDX 7
+#define STK8BA50_DREADY_INT_MASK 0x10
+#define STK8BA50_DREADY_INT_MAP 0x81
+#define STK8BA50_ALL_CHANNEL_MASK 7
+#define STK8BA50_ALL_CHANNEL_SIZE 6
#define STK8BA50_DRIVER_NAME "stk8ba50"
+#define STK8BA50_GPIO "stk8ba50_gpio"
+#define STK8BA50_IRQ_NAME "stk8ba50_event"
#define STK8BA50_SCALE_AVAIL "0.0384 0.0767 0.1534 0.3069"
@@ -50,35 +66,76 @@
*
* Locally, the range is stored as a table index.
*/
-static const int stk8ba50_scale_table[][2] = {
+static const struct {
+ u8 reg_val;
+ u32 scale_val;
+} stk8ba50_scale_table[] = {
{3, 38400}, {5, 76700}, {8, 153400}, {12, 306900}
};
+/* Sample rates are stored as { <register value>, <Hz value> } */
+static const struct {
+ u8 reg_val;
+ u16 samp_freq;
+} stk8ba50_samp_freq_table[] = {
+ {0x08, 14}, {0x09, 25}, {0x0A, 56}, {0x0B, 112},
+ {0x0C, 224}, {0x0D, 448}, {0x0E, 896}, {0x0F, 1792}
+};
+
+/* Used to map scan mask bits to their corresponding channel register. */
+static const int stk8ba50_channel_table[] = {
+ STK8BA50_REG_XOUT,
+ STK8BA50_REG_YOUT,
+ STK8BA50_REG_ZOUT
+};
+
struct stk8ba50_data {
struct i2c_client *client;
struct mutex lock;
int range;
+ u8 sample_rate_idx;
+ struct iio_trigger *dready_trig;
+ bool dready_trigger_on;
+ /*
+ * 3 x 16-bit channels (10-bit data, 6-bit padding) +
+ * 1 x 16 padding +
+ * 4 x 16 64-bit timestamp
+ */
+ s16 buffer[8];
};
-#define STK8BA50_ACCEL_CHANNEL(reg, axis) { \
- .type = IIO_ACCEL, \
- .address = reg, \
- .modified = 1, \
- .channel2 = IIO_MOD_##axis, \
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
- .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+#define STK8BA50_ACCEL_CHANNEL(index, reg, axis) { \
+ .type = IIO_ACCEL, \
+ .address = reg, \
+ .modified = 1, \
+ .channel2 = IIO_MOD_##axis, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+ BIT(IIO_CHAN_INFO_SAMP_FREQ), \
+ .scan_index = index, \
+ .scan_type = { \
+ .sign = 's', \
+ .realbits = 10, \
+ .storagebits = 16, \
+ .shift = STK8BA50_DATA_SHIFT, \
+ .endianness = IIO_CPU, \
+ }, \
}
static const struct iio_chan_spec stk8ba50_channels[] = {
- STK8BA50_ACCEL_CHANNEL(STK8BA50_REG_XOUT, X),
- STK8BA50_ACCEL_CHANNEL(STK8BA50_REG_YOUT, Y),
- STK8BA50_ACCEL_CHANNEL(STK8BA50_REG_ZOUT, Z),
+ STK8BA50_ACCEL_CHANNEL(0, STK8BA50_REG_XOUT, X),
+ STK8BA50_ACCEL_CHANNEL(1, STK8BA50_REG_YOUT, Y),
+ STK8BA50_ACCEL_CHANNEL(2, STK8BA50_REG_ZOUT, Z),
+ IIO_CHAN_SOFT_TIMESTAMP(3),
};
static IIO_CONST_ATTR(in_accel_scale_available, STK8BA50_SCALE_AVAIL);
+static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("14 25 56 112 224 448 896 1792");
+
static struct attribute *stk8ba50_attributes[] = {
&iio_const_attr_in_accel_scale_available.dev_attr.attr,
+ &iio_const_attr_sampling_frequency_available.dev_attr.attr,
NULL,
};
@@ -97,7 +154,61 @@ static int stk8ba50_read_accel(struct stk8ba50_data *data, u8 reg)
return ret;
}
- return sign_extend32(ret >> STK8BA50_DATA_SHIFT, 9);
+ return ret;
+}
+
+static int stk8ba50_data_rdy_trigger_set_state(struct iio_trigger *trig,
+ bool state)
+{
+ struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+ struct stk8ba50_data *data = iio_priv(indio_dev);
+ int ret;
+
+ if (state)
+ ret = i2c_smbus_write_byte_data(data->client,
+ STK8BA50_REG_INTEN2, STK8BA50_DREADY_INT_MASK);
+ else
+ ret = i2c_smbus_write_byte_data(data->client,
+ STK8BA50_REG_INTEN2, 0x00);
+
+ if (ret < 0)
+ dev_err(&data->client->dev, "failed to set trigger state\n");
+ else
+ data->dready_trigger_on = state;
+
+ return ret;
+}
+
+static const struct iio_trigger_ops stk8ba50_trigger_ops = {
+ .set_trigger_state = stk8ba50_data_rdy_trigger_set_state,
+ .owner = THIS_MODULE,
+};
+
+static int stk8ba50_set_power(struct stk8ba50_data *data, bool mode)
+{
+ int ret;
+ u8 masked_reg;
+ struct i2c_client *client = data->client;
+
+ ret = i2c_smbus_read_byte_data(client, STK8BA50_REG_POWMODE);
+ if (ret < 0)
+ goto exit_err;
+
+ if (mode)
+ masked_reg = ret | STK8BA50_MODE_POWERBIT;
+ else
+ masked_reg = ret & (~STK8BA50_MODE_POWERBIT);
+
+ ret = i2c_smbus_write_byte_data(client, STK8BA50_REG_POWMODE,
+ masked_reg);
+ if (ret < 0)
+ goto exit_err;
+
+ return ret;
+
+exit_err:
+ dev_err(&client->dev, "failed to change sensor mode\n");
+ return ret;
}
static int stk8ba50_read_raw(struct iio_dev *indio_dev,
@@ -105,17 +216,37 @@ static int stk8ba50_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, long mask)
{
struct stk8ba50_data *data = iio_priv(indio_dev);
+ int ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
+ if (iio_buffer_enabled(indio_dev))
+ return -EBUSY;
mutex_lock(&data->lock);
- *val = stk8ba50_read_accel(data, chan->address);
+ ret = stk8ba50_set_power(data, STK8BA50_MODE_NORMAL);
+ if (ret < 0) {
+ mutex_unlock(&data->lock);
+ return -EINVAL;
+ }
+ ret = stk8ba50_read_accel(data, chan->address);
+ if (ret < 0) {
+ stk8ba50_set_power(data, STK8BA50_MODE_SUSPEND);
+ mutex_unlock(&data->lock);
+ return -EINVAL;
+ }
+ *val = sign_extend32(ret >> STK8BA50_DATA_SHIFT, 9);
+ stk8ba50_set_power(data, STK8BA50_MODE_SUSPEND);
mutex_unlock(&data->lock);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
*val = 0;
- *val2 = stk8ba50_scale_table[data->range][1];
+ *val2 = stk8ba50_scale_table[data->range].scale_val;
return IIO_VAL_INT_PLUS_MICRO;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ *val = stk8ba50_samp_freq_table
+ [data->sample_rate_idx].samp_freq;
+ *val2 = 0;
+ return IIO_VAL_INT;
}
return -EINVAL;
@@ -136,7 +267,7 @@ static int stk8ba50_write_raw(struct iio_dev *indio_dev,
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(stk8ba50_scale_table); i++)
- if (val2 == stk8ba50_scale_table[i][1]) {
+ if (val2 == stk8ba50_scale_table[i].scale_val) {
index = i;
break;
}
@@ -145,7 +276,7 @@ static int stk8ba50_write_raw(struct iio_dev *indio_dev,
ret = i2c_smbus_write_byte_data(data->client,
STK8BA50_REG_RANGE,
- stk8ba50_scale_table[index][0]);
+ stk8ba50_scale_table[index].reg_val);
if (ret < 0)
dev_err(&data->client->dev,
"failed to set measurement range\n");
@@ -153,6 +284,25 @@ static int stk8ba50_write_raw(struct iio_dev *indio_dev,
data->range = index;
return ret;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ for (i = 0; i < ARRAY_SIZE(stk8ba50_samp_freq_table); i++)
+ if (val == stk8ba50_samp_freq_table[i].samp_freq) {
+ index = i;
+ break;
+ }
+ if (index < 0)
+ return -EINVAL;
+
+ ret = i2c_smbus_write_byte_data(data->client,
+ STK8BA50_REG_BWSEL,
+ stk8ba50_samp_freq_table[index].reg_val);
+ if (ret < 0)
+ dev_err(&data->client->dev,
+ "failed to set sampling rate\n");
+ else
+ data->sample_rate_idx = index;
+
+ return ret;
}
return -EINVAL;
@@ -165,30 +315,100 @@ static const struct iio_info stk8ba50_info = {
.attrs = &stk8ba50_attribute_group,
};
-static int stk8ba50_set_power(struct stk8ba50_data *data, bool mode)
+static irqreturn_t stk8ba50_trigger_handler(int irq, void *p)
{
+ struct iio_poll_func *pf = p;
+ struct iio_dev *indio_dev = pf->indio_dev;
+ struct stk8ba50_data *data = iio_priv(indio_dev);
+ int bit, ret, i = 0;
+
+ mutex_lock(&data->lock);
+ /*
+ * Do a bulk read if all channels are requested,
+ * from 0x02 (XOUT1) to 0x07 (ZOUT2)
+ */
+ if (*(indio_dev->active_scan_mask) == STK8BA50_ALL_CHANNEL_MASK) {
+ ret = i2c_smbus_read_i2c_block_data(data->client,
+ STK8BA50_REG_XOUT,
+ STK8BA50_ALL_CHANNEL_SIZE,
+ (u8 *)data->buffer);
+ if (ret < STK8BA50_ALL_CHANNEL_SIZE) {
+ dev_err(&data->client->dev, "register read failed\n");
+ goto err;
+ }
+ } else {
+ for_each_set_bit(bit, indio_dev->active_scan_mask,
+ indio_dev->masklength) {
+ ret = stk8ba50_read_accel(data,
+ stk8ba50_channel_table[bit]);
+ if (ret < 0)
+ goto err;
+
+ data->buffer[i++] = ret;
+ }
+ }
+ iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+ pf->timestamp);
+err:
+ mutex_unlock(&data->lock);
+ iio_trigger_notify_done(indio_dev->trig);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t stk8ba50_data_rdy_trig_poll(int irq, void *private)
+{
+ struct iio_dev *indio_dev = private;
+ struct stk8ba50_data *data = iio_priv(indio_dev);
+
+ if (data->dready_trigger_on)
+ iio_trigger_poll(data->dready_trig);
+
+ return IRQ_HANDLED;
+}
+
+static int stk8ba50_buffer_preenable(struct iio_dev *indio_dev)
+{
+ struct stk8ba50_data *data = iio_priv(indio_dev);
+
+ return stk8ba50_set_power(data, STK8BA50_MODE_NORMAL);
+}
+
+static int stk8ba50_buffer_postdisable(struct iio_dev *indio_dev)
+{
+ struct stk8ba50_data *data = iio_priv(indio_dev);
+
+ return stk8ba50_set_power(data, STK8BA50_MODE_SUSPEND);
+}
+
+static const struct iio_buffer_setup_ops stk8ba50_buffer_setup_ops = {
+ .preenable = stk8ba50_buffer_preenable,
+ .postenable = iio_triggered_buffer_postenable,
+ .predisable = iio_triggered_buffer_predisable,
+ .postdisable = stk8ba50_buffer_postdisable,
+};
+
+static int stk8ba50_gpio_probe(struct i2c_client *client)
+{
+ struct device *dev;
+ struct gpio_desc *gpio;
int ret;
- u8 masked_reg;
- struct i2c_client *client = data->client;
- ret = i2c_smbus_read_byte_data(client, STK8BA50_REG_POWMODE);
- if (ret < 0)
- goto exit_err;
+ if (!client)
+ return -EINVAL;
- if (mode)
- masked_reg = ret | STK8BA50_MODE_POWERBIT;
- else
- masked_reg = ret & (~STK8BA50_MODE_POWERBIT);
+ dev = &client->dev;
- ret = i2c_smbus_write_byte_data(client, STK8BA50_REG_POWMODE,
- masked_reg);
- if (ret < 0)
- goto exit_err;
+ /* data ready gpio interrupt pin */
+ gpio = devm_gpiod_get_index(dev, STK8BA50_GPIO, 0, GPIOD_IN);
+ if (IS_ERR(gpio)) {
+ dev_err(dev, "acpi gpio get index failed\n");
+ return PTR_ERR(gpio);
+ }
- return ret;
+ ret = gpiod_to_irq(gpio);
+ dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
-exit_err:
- dev_err(&client->dev, "failed to change sensor mode\n");
return ret;
}
@@ -222,28 +442,104 @@ static int stk8ba50_probe(struct i2c_client *client,
STK8BA50_REG_SWRST, STK8BA50_RESET_CMD);
if (ret < 0) {
dev_err(&client->dev, "failed to reset sensor\n");
- return ret;
+ goto err_power_off;
}
/* The default range is +/-2g */
data->range = 0;
+ /* The default sampling rate is 1792 Hz (maximum) */
+ data->sample_rate_idx = STK8BA50_SR_1792HZ_IDX;
+
+ /* Set up interrupts */
+ ret = i2c_smbus_write_byte_data(client,
+ STK8BA50_REG_INTEN2, STK8BA50_DREADY_INT_MASK);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to set up interrupts\n");
+ goto err_power_off;
+ }
+ ret = i2c_smbus_write_byte_data(client,
+ STK8BA50_REG_INTMAP2, STK8BA50_DREADY_INT_MAP);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to set up interrupts\n");
+ goto err_power_off;
+ }
+
+ if (client->irq < 0)
+ client->irq = stk8ba50_gpio_probe(client);
+
+ if (client->irq >= 0) {
+ ret = devm_request_threaded_irq(&client->dev, client->irq,
+ stk8ba50_data_rdy_trig_poll,
+ NULL,
+ IRQF_TRIGGER_RISING |
+ IRQF_ONESHOT,
+ STK8BA50_IRQ_NAME,
+ indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "request irq %d failed\n",
+ client->irq);
+ goto err_power_off;
+ }
+
+ data->dready_trig = devm_iio_trigger_alloc(&client->dev,
+ "%s-dev%d",
+ indio_dev->name,
+ indio_dev->id);
+ if (!data->dready_trig) {
+ ret = -ENOMEM;
+ goto err_power_off;
+ }
+
+ data->dready_trig->dev.parent = &client->dev;
+ data->dready_trig->ops = &stk8ba50_trigger_ops;
+ iio_trigger_set_drvdata(data->dready_trig, indio_dev);
+ ret = iio_trigger_register(data->dready_trig);
+ if (ret) {
+ dev_err(&client->dev, "iio trigger register failed\n");
+ goto err_power_off;
+ }
+ }
+
+ ret = iio_triggered_buffer_setup(indio_dev,
+ iio_pollfunc_store_time,
+ stk8ba50_trigger_handler,
+ &stk8ba50_buffer_setup_ops);
+ if (ret < 0) {
+ dev_err(&client->dev, "iio triggered buffer setup failed\n");
+ goto err_trigger_unregister;
+ }
+
ret = iio_device_register(indio_dev);
if (ret < 0) {
dev_err(&client->dev, "device_register failed\n");
- stk8ba50_set_power(data, STK8BA50_MODE_SUSPEND);
+ goto err_buffer_cleanup;
}
return ret;
+
+err_buffer_cleanup:
+ iio_triggered_buffer_cleanup(indio_dev);
+err_trigger_unregister:
+ if (data->dready_trig)
+ iio_trigger_unregister(data->dready_trig);
+err_power_off:
+ stk8ba50_set_power(data, STK8BA50_MODE_SUSPEND);
+ return ret;
}
static int stk8ba50_remove(struct i2c_client *client)
{
struct iio_dev *indio_dev = i2c_get_clientdata(client);
+ struct stk8ba50_data *data = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
- return stk8ba50_set_power(iio_priv(indio_dev), STK8BA50_MODE_SUSPEND);
+ if (data->dready_trig)
+ iio_trigger_unregister(data->dready_trig);
+
+ return stk8ba50_set_power(data, STK8BA50_MODE_SUSPEND);
}
#ifdef CONFIG_PM_SLEEP
@@ -276,6 +572,7 @@ static const struct i2c_device_id stk8ba50_i2c_id[] = {
{"stk8ba50", 0},
{}
};
+MODULE_DEVICE_TABLE(i2c, stk8ba50_i2c_id);
static const struct acpi_device_id stk8ba50_acpi_id[] = {
{"STK8BA50", 0},
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index eb0cd8977..50c103d75 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -20,6 +20,9 @@ config AD7266
Say yes here to build support for Analog Devices AD7265 and AD7266
ADCs.
+ To compile this driver as a module, choose M here: the module will be
+ called ad7266.
+
config AD7291
tristate "Analog Devices AD7291 ADC driver"
depends on I2C
@@ -52,8 +55,6 @@ config AD7476
AD7277, AD7278, AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468,
AD7495, AD7910, AD7920, AD7920 SPI analog to digital converters (ADC).
- If unsure, say N (but it's safe to say "Y").
-
To compile this driver as a module, choose M here: the
module will be called ad7476.
@@ -63,8 +64,7 @@ config AD7791
select AD_SIGMA_DELTA
help
Say yes here to build support for Analog Devices AD7787, AD7788, AD7789,
- AD7790 and AD7791 SPI analog to digital converters (ADC). If unsure, say
- N (but it is safe to say "Y").
+ AD7790 and AD7791 SPI analog to digital converters (ADC).
To compile this driver as a module, choose M here: the module will be
called ad7791.
@@ -76,7 +76,6 @@ config AD7793
help
Say yes here to build support for Analog Devices AD7785, AD7792, AD7793,
AD7794 and AD7795 SPI analog to digital converters (ADC).
- If unsure, say N (but it's safe to say "Y").
To compile this driver as a module, choose M here: the
module will be called AD7793.
@@ -89,7 +88,6 @@ config AD7887
help
Say yes here to build support for Analog Devices
AD7887 SPI analog to digital converter (ADC).
- If unsure, say N (but it's safe to say "Y").
To compile this driver as a module, choose M here: the
module will be called ad7887.
@@ -117,6 +115,9 @@ config AD799X
i2c analog to digital converters (ADC). Provides direct access
via sysfs.
+ To compile this driver as a module, choose M here: the module will be
+ called ad799x.
+
config AT91_ADC
tristate "Atmel AT91 ADC"
depends on ARCH_AT91
@@ -127,6 +128,9 @@ config AT91_ADC
help
Say yes here to build support for Atmel AT91 ADC.
+ To compile this driver as a module, choose M here: the module will be
+ called at91_adc.
+
config AXP288_ADC
tristate "X-Powers AXP288 ADC driver"
depends on MFD_AXP20X
@@ -135,6 +139,9 @@ config AXP288_ADC
device. Depending on platform configuration, this general purpose ADC can
be used for sampling sensors such as thermal resistors.
+ To compile this driver as a module, choose M here: the module will be
+ called axp288_adc.
+
config BERLIN2_ADC
tristate "Marvell Berlin2 ADC driver"
depends on ARCH_BERLIN
@@ -151,6 +158,9 @@ config DA9150_GPADC
This driver can also be built as a module. If chosen, the module name
will be da9150-gpadc.
+ To compile this driver as a module, choose M here: the module will be
+ called berlin2-adc.
+
config CC10001_ADC
tristate "Cosmic Circuits 10001 ADC driver"
depends on HAS_IOMEM && HAVE_CLK && REGULATOR
@@ -170,12 +180,18 @@ config EXYNOS_ADC
of SoCs for drivers such as the touchscreen and hwmon to use to share
this resource.
+ To compile this driver as a module, choose M here: the module will be
+ called exynos_adc.
+
config LP8788_ADC
tristate "LP8788 ADC driver"
depends on MFD_LP8788
help
Say yes here to build support for TI LP8788 ADC.
+ To compile this driver as a module, choose M here: the module will be
+ called lp8788_adc.
+
config MAX1027
tristate "Maxim max1027 ADC driver"
depends on SPI
@@ -185,6 +201,9 @@ config MAX1027
Say yes here to build support for Maxim SPI ADC models
max1027, max1029 and max1031.
+ To compile this driver as a module, choose M here: the module will be
+ called max1027.
+
config MAX1363
tristate "Maxim max1363 ADC driver"
depends on I2C
@@ -201,13 +220,16 @@ config MAX1363
max11646, max11647) Provides direct access via sysfs and buffered
data via the iio dev interface.
+ To compile this driver as a module, choose M here: the module will be
+ called max1363.
+
config MCP320X
tristate "Microchip Technology MCP3x01/02/04/08"
depends on SPI
help
Say yes here to build support for Microchip Technology's
- MCP3001, MCP3002, MCP3004, MCP3008, MCP3201, MCP3202, MCP3204 or
- MCP3208 analog to digital converter.
+ MCP3001, MCP3002, MCP3004, MCP3008, MCP3201, MCP3202, MCP3204,
+ MCP3208 or MCP3301 analog to digital converter.
This driver can also be built as a module. If so, the module will be
called mcp320x.
@@ -309,15 +331,18 @@ config TI_AM335X_ADC
Say yes here to build support for Texas Instruments ADC
driver which is also a MFD client.
+ To compile this driver as a module, choose M here: the module will be
+ called ti_am335x_adc.
+
config TWL4030_MADC
tristate "TWL4030 MADC (Monitoring A/D Converter)"
depends on TWL4030_CORE
help
- This driver provides support for Triton TWL4030-MADC. The
- driver supports both RT and SW conversion methods.
+ This driver provides support for Triton TWL4030-MADC. The
+ driver supports both RT and SW conversion methods.
- This driver can also be built as a module. If so, the module will be
- called twl4030-madc.
+ This driver can also be built as a module. If so, the module will be
+ called twl4030-madc.
config TWL6030_GPADC
tristate "TWL6030 GPADC (General Purpose A/D Converter) Support"
@@ -350,6 +375,9 @@ config VIPERBOARD_ADC
Say yes here to access the ADC part of the Nano River
Technologies Viperboard.
+ To compile this driver as a module, choose M here: the module will be
+ called viperboard_adc.
+
config XILINX_XADC
tristate "Xilinx XADC driver"
depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST
diff --git a/drivers/iio/adc/berlin2-adc.c b/drivers/iio/adc/berlin2-adc.c
index aecc9ad99..4946d9bf1 100644
--- a/drivers/iio/adc/berlin2-adc.c
+++ b/drivers/iio/adc/berlin2-adc.c
@@ -26,7 +26,7 @@
#define BERLIN2_SM_CTRL 0x14
#define BERLIN2_SM_CTRL_SM_SOC_INT BIT(1)
#define BERLIN2_SM_CTRL_SOC_SM_INT BIT(2)
-#define BERLIN2_SM_CTRL_ADC_SEL(x) (BIT(x) << 5) /* 0-15 */
+#define BERLIN2_SM_CTRL_ADC_SEL(x) ((x) << 5) /* 0-15 */
#define BERLIN2_SM_CTRL_ADC_SEL_MASK (0xf << 5)
#define BERLIN2_SM_CTRL_ADC_POWER BIT(9)
#define BERLIN2_SM_CTRL_ADC_CLKSEL_DIV2 (0x0 << 10)
@@ -53,14 +53,14 @@
#define BERLIN2_SM_ADC_MASK 0x3ff
#define BERLIN2_SM_ADC_STATUS 0x1c
#define BERLIN2_SM_ADC_STATUS_DATA_RDY(x) BIT(x) /* 0-15 */
-#define BERLIN2_SM_ADC_STATUS_DATA_RDY_MASK 0xf
+#define BERLIN2_SM_ADC_STATUS_DATA_RDY_MASK GENMASK(15, 0)
#define BERLIN2_SM_ADC_STATUS_INT_EN(x) (BIT(x) << 16) /* 0-15 */
-#define BERLIN2_SM_ADC_STATUS_INT_EN_MASK (0xf << 16)
+#define BERLIN2_SM_ADC_STATUS_INT_EN_MASK GENMASK(31, 16)
#define BERLIN2_SM_TSEN_STATUS 0x24
#define BERLIN2_SM_TSEN_STATUS_DATA_RDY BIT(0)
#define BERLIN2_SM_TSEN_STATUS_INT_EN BIT(1)
#define BERLIN2_SM_TSEN_DATA 0x28
-#define BERLIN2_SM_TSEN_MASK 0xfff
+#define BERLIN2_SM_TSEN_MASK GENMASK(9, 0)
#define BERLIN2_SM_TSEN_CTRL 0x74
#define BERLIN2_SM_TSEN_CTRL_START BIT(8)
#define BERLIN2_SM_TSEN_CTRL_SETTLING_4 (0x0 << 21) /* 4 us */
@@ -86,7 +86,7 @@ struct berlin2_adc_priv {
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
}
-static struct iio_chan_spec berlin2_adc_channels[] = {
+static const struct iio_chan_spec berlin2_adc_channels[] = {
BERLIN2_ADC_CHANNEL(0, IIO_VOLTAGE), /* external input */
BERLIN2_ADC_CHANNEL(1, IIO_VOLTAGE), /* external input */
BERLIN2_ADC_CHANNEL(2, IIO_VOLTAGE), /* external input */
@@ -103,7 +103,6 @@ static struct iio_chan_spec berlin2_adc_channels[] = {
BERLIN2_ADC_CHANNEL(7, IIO_VOLTAGE), /* reserved */
IIO_CHAN_SOFT_TIMESTAMP(8), /* timestamp */
};
-#define BERLIN2_N_CHANNELS ARRAY_SIZE(berlin2_adc_channels)
static int berlin2_adc_read(struct iio_dev *indio_dev, int channel)
{
@@ -221,7 +220,7 @@ static int berlin2_adc_read_raw(struct iio_dev *indio_dev,
return temp;
if (temp > 2047)
- temp = -(4096 - temp);
+ temp -= 4096;
/* Convert to milli Celsius */
*val = ((temp * 100000) / 264 - 270000);
@@ -286,8 +285,7 @@ static int berlin2_adc_probe(struct platform_device *pdev)
int irq, tsen_irq;
int ret;
- indio_dev = devm_iio_device_alloc(&pdev->dev,
- sizeof(struct berlin2_adc_priv));
+ indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*priv));
if (!indio_dev)
return -ENOMEM;
@@ -301,11 +299,11 @@ static int berlin2_adc_probe(struct platform_device *pdev)
irq = platform_get_irq_byname(pdev, "adc");
if (irq < 0)
- return -ENODEV;
+ return irq;
tsen_irq = platform_get_irq_byname(pdev, "tsen");
if (tsen_irq < 0)
- return -ENODEV;
+ return tsen_irq;
ret = devm_request_irq(&pdev->dev, irq, berlin2_adc_irq, 0,
pdev->dev.driver->name, indio_dev);
@@ -325,8 +323,8 @@ static int berlin2_adc_probe(struct platform_device *pdev)
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &berlin2_adc_info;
- indio_dev->num_channels = BERLIN2_N_CHANNELS;
indio_dev->channels = berlin2_adc_channels;
+ indio_dev->num_channels = ARRAY_SIZE(berlin2_adc_channels);
/* Power up the ADC */
regmap_update_bits(priv->regmap, BERLIN2_SM_CTRL,
diff --git a/drivers/iio/adc/cc10001_adc.c b/drivers/iio/adc/cc10001_adc.c
index 115f6e99a..8254f529b 100644
--- a/drivers/iio/adc/cc10001_adc.c
+++ b/drivers/iio/adc/cc10001_adc.c
@@ -62,6 +62,7 @@ struct cc10001_adc_device {
struct regulator *reg;
u16 *buf;
+ bool shared;
struct mutex lock;
unsigned int start_delay_ns;
unsigned int eoc_delay_ns;
@@ -153,7 +154,8 @@ static irqreturn_t cc10001_adc_trigger_h(int irq, void *p)
mutex_lock(&adc_dev->lock);
- cc10001_adc_power_up(adc_dev);
+ if (!adc_dev->shared)
+ cc10001_adc_power_up(adc_dev);
/* Calculate delay step for eoc and sampled data */
delay_ns = adc_dev->eoc_delay_ns / CC10001_MAX_POLL_COUNT;
@@ -177,7 +179,8 @@ static irqreturn_t cc10001_adc_trigger_h(int irq, void *p)
}
done:
- cc10001_adc_power_down(adc_dev);
+ if (!adc_dev->shared)
+ cc10001_adc_power_down(adc_dev);
mutex_unlock(&adc_dev->lock);
@@ -196,7 +199,8 @@ static u16 cc10001_adc_read_raw_voltage(struct iio_dev *indio_dev,
unsigned int delay_ns;
u16 val;
- cc10001_adc_power_up(adc_dev);
+ if (!adc_dev->shared)
+ cc10001_adc_power_up(adc_dev);
/* Calculate delay step for eoc and sampled data */
delay_ns = adc_dev->eoc_delay_ns / CC10001_MAX_POLL_COUNT;
@@ -205,7 +209,8 @@ static u16 cc10001_adc_read_raw_voltage(struct iio_dev *indio_dev,
val = cc10001_adc_poll_done(indio_dev, chan->channel, delay_ns);
- cc10001_adc_power_down(adc_dev);
+ if (!adc_dev->shared)
+ cc10001_adc_power_down(adc_dev);
return val;
}
@@ -322,8 +327,10 @@ static int cc10001_adc_probe(struct platform_device *pdev)
adc_dev = iio_priv(indio_dev);
channel_map = GENMASK(CC10001_ADC_NUM_CHANNELS - 1, 0);
- if (!of_property_read_u32(node, "adc-reserved-channels", &ret))
+ if (!of_property_read_u32(node, "adc-reserved-channels", &ret)) {
+ adc_dev->shared = true;
channel_map &= ~ret;
+ }
adc_dev->reg = devm_regulator_get(&pdev->dev, "vref");
if (IS_ERR(adc_dev->reg))
@@ -368,6 +375,14 @@ static int cc10001_adc_probe(struct platform_device *pdev)
adc_dev->eoc_delay_ns = NSEC_PER_SEC / adc_clk_rate;
adc_dev->start_delay_ns = adc_dev->eoc_delay_ns * CC10001_WAIT_CYCLES;
+ /*
+ * There is only one register to power-up/power-down the AUX ADC.
+ * If the ADC is shared among multiple CPUs, always power it up here.
+ * If the ADC is used only by the MIPS, power-up/power-down at runtime.
+ */
+ if (adc_dev->shared)
+ cc10001_adc_power_up(adc_dev);
+
/* Setup the ADC channels available on the device */
ret = cc10001_adc_channel_init(indio_dev, channel_map);
if (ret < 0)
@@ -402,6 +417,7 @@ static int cc10001_adc_remove(struct platform_device *pdev)
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct cc10001_adc_device *adc_dev = iio_priv(indio_dev);
+ cc10001_adc_power_down(adc_dev);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
clk_disable_unprepare(adc_dev->adc_clk);
diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
index d819823f7..b19e4f9d1 100644
--- a/drivers/iio/adc/mcp320x.c
+++ b/drivers/iio/adc/mcp320x.c
@@ -25,6 +25,7 @@
* http://ww1.microchip.com/downloads/en/DeviceDoc/21290D.pdf mcp3201
* http://ww1.microchip.com/downloads/en/DeviceDoc/21034D.pdf mcp3202
* http://ww1.microchip.com/downloads/en/DeviceDoc/21298c.pdf mcp3204/08
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/21700E.pdf mcp3301
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -47,6 +48,7 @@ enum {
mcp3202,
mcp3204,
mcp3208,
+ mcp3301,
};
struct mcp320x_chip_info {
@@ -76,6 +78,7 @@ static int mcp320x_channel_to_tx_data(int device_index,
switch (device_index) {
case mcp3001:
case mcp3201:
+ case mcp3301:
return 0;
case mcp3002:
case mcp3202:
@@ -102,7 +105,7 @@ static int mcp320x_adc_conversion(struct mcp320x *adc, u8 channel,
adc->tx_buf = mcp320x_channel_to_tx_data(device_index,
channel, differential);
- if (device_index != mcp3001 && device_index != mcp3201) {
+ if (device_index != mcp3001 && device_index != mcp3201 && device_index != mcp3301) {
ret = spi_sync(adc->spi, &adc->msg);
if (ret < 0)
return ret;
@@ -125,6 +128,8 @@ static int mcp320x_adc_conversion(struct mcp320x *adc, u8 channel,
case mcp3204:
case mcp3208:
return (adc->rx_buf[0] << 4 | adc->rx_buf[1] >> 4);
+ case mcp3301:
+ return sign_extend32((adc->rx_buf[0] & 0x1f) << 8 | adc->rx_buf[1], 12);
default:
return -EINVAL;
}
@@ -274,6 +279,11 @@ static const struct mcp320x_chip_info mcp320x_chip_infos[] = {
.num_channels = ARRAY_SIZE(mcp3208_channels),
.resolution = 12
},
+ [mcp3301] = {
+ .channels = mcp3201_channels,
+ .num_channels = ARRAY_SIZE(mcp3201_channels),
+ .resolution = 13
+ },
};
static int mcp320x_probe(struct spi_device *spi)
@@ -369,6 +379,9 @@ static const struct of_device_id mcp320x_dt_ids[] = {
.compatible = "mcp3208",
.data = &mcp320x_chip_infos[mcp3208],
}, {
+ .compatible = "mcp3301",
+ .data = &mcp320x_chip_infos[mcp3301],
+ }, {
}
};
MODULE_DEVICE_TABLE(of, mcp320x_dt_ids);
@@ -383,6 +396,7 @@ static const struct spi_device_id mcp320x_id[] = {
{ "mcp3202", mcp3202 },
{ "mcp3204", mcp3204 },
{ "mcp3208", mcp3208 },
+ { "mcp3301", mcp3301 },
{ }
};
MODULE_DEVICE_TABLE(spi, mcp320x_id);
diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
index b96c63647..355512200 100644
--- a/drivers/iio/adc/mcp3422.c
+++ b/drivers/iio/adc/mcp3422.c
@@ -404,7 +404,6 @@ MODULE_DEVICE_TABLE(of, mcp3422_of_match);
static struct i2c_driver mcp3422_driver = {
.driver = {
.name = "mcp3422",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(mcp3422_of_match),
},
.probe = mcp3422_probe,
diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c
index b3a82b4d1..2c8374f86 100644
--- a/drivers/iio/adc/ti-adc081c.c
+++ b/drivers/iio/adc/ti-adc081c.c
@@ -140,7 +140,6 @@ MODULE_DEVICE_TABLE(of, adc081c_of_match);
static struct i2c_driver adc081c_driver = {
.driver = {
.name = "adc081c",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(adc081c_of_match),
},
.probe = adc081c_probe,
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index ebe415f10..0c74869a5 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -45,13 +45,18 @@
#include <linux/types.h>
#include <linux/gfp.h>
#include <linux/err.h>
+#include <linux/regulator/consumer.h>
#include <linux/iio/iio.h>
+#define TWL4030_USB_SEL_MADC_MCPC (1<<3)
+#define TWL4030_USB_CARKIT_ANA_CTRL 0xBB
+
/**
* struct twl4030_madc_data - a container for madc info
* @dev: Pointer to device structure for madc
* @lock: Mutex protecting this data structure
+ * @regulator: Pointer to bias regulator for madc
* @requests: Array of request struct corresponding to SW1, SW2 and RT
* @use_second_irq: IRQ selection (main or co-processor)
* @imr: Interrupt mask register of MADC
@@ -60,6 +65,7 @@
struct twl4030_madc_data {
struct device *dev;
struct mutex lock; /* mutex protecting this data structure */
+ struct regulator *usb3v1;
struct twl4030_madc_request requests[TWL4030_MADC_NUM_METHODS];
bool use_second_irq;
u8 imr;
@@ -841,6 +847,32 @@ static int twl4030_madc_probe(struct platform_device *pdev)
}
twl4030_madc = madc;
+ /* Configure MADC[3:6] */
+ ret = twl_i2c_read_u8(TWL_MODULE_USB, &regval,
+ TWL4030_USB_CARKIT_ANA_CTRL);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to read reg CARKIT_ANA_CTRL 0x%X\n",
+ TWL4030_USB_CARKIT_ANA_CTRL);
+ goto err_i2c;
+ }
+ regval |= TWL4030_USB_SEL_MADC_MCPC;
+ ret = twl_i2c_write_u8(TWL_MODULE_USB, regval,
+ TWL4030_USB_CARKIT_ANA_CTRL);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to write reg CARKIT_ANA_CTRL 0x%X\n",
+ TWL4030_USB_CARKIT_ANA_CTRL);
+ goto err_i2c;
+ }
+
+ /* Enable 3v1 bias regulator for MADC[3:6] */
+ madc->usb3v1 = devm_regulator_get(madc->dev, "vusb3v1");
+ if (IS_ERR(madc->usb3v1))
+ return -ENODEV;
+
+ ret = regulator_enable(madc->usb3v1);
+ if (ret)
+ dev_err(madc->dev, "could not enable 3v1 bias regulator\n");
+
ret = iio_device_register(iio_dev);
if (ret) {
dev_err(&pdev->dev, "could not register iio device\n");
@@ -866,6 +898,8 @@ static int twl4030_madc_remove(struct platform_device *pdev)
twl4030_madc_set_current_generator(madc, 0, 0);
twl4030_madc_set_power(madc, 0);
+ regulator_disable(madc->usb3v1);
+
return 0;
}
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 819632bf1..6bf4c20eb 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -68,6 +68,9 @@
#define VF610_ADC_CLK_DIV8 0x60
#define VF610_ADC_CLK_MASK 0x60
#define VF610_ADC_ADLSMP_LONG 0x10
+#define VF610_ADC_ADSTS_SHORT 0x100
+#define VF610_ADC_ADSTS_NORMAL 0x200
+#define VF610_ADC_ADSTS_LONG 0x300
#define VF610_ADC_ADSTS_MASK 0x300
#define VF610_ADC_ADLPC_EN 0x80
#define VF610_ADC_ADHSC_EN 0x400
@@ -98,6 +101,8 @@
#define VF610_ADC_CALF 0x2
#define VF610_ADC_TIMEOUT msecs_to_jiffies(100)
+#define DEFAULT_SAMPLE_TIME 1000
+
enum clk_sel {
VF610_ADCIOC_BUSCLK_SET,
VF610_ADCIOC_ALTCLK_SET,
@@ -124,6 +129,17 @@ enum conversion_mode_sel {
VF610_ADC_CONV_LOW_POWER,
};
+enum lst_adder_sel {
+ VF610_ADCK_CYCLES_3,
+ VF610_ADCK_CYCLES_5,
+ VF610_ADCK_CYCLES_7,
+ VF610_ADCK_CYCLES_9,
+ VF610_ADCK_CYCLES_13,
+ VF610_ADCK_CYCLES_17,
+ VF610_ADCK_CYCLES_21,
+ VF610_ADCK_CYCLES_25,
+};
+
struct vf610_adc_feature {
enum clk_sel clk_sel;
enum vol_ref vol_ref;
@@ -132,6 +148,8 @@ struct vf610_adc_feature {
int clk_div;
int sample_rate;
int res_mode;
+ u32 lst_adder_index;
+ u32 default_sample_time;
bool calibration;
bool ovwren;
@@ -155,11 +173,13 @@ struct vf610_adc {
};
static const u32 vf610_hw_avgs[] = { 1, 4, 8, 16, 32 };
+static const u32 vf610_lst_adder[] = { 3, 5, 7, 9, 13, 17, 21, 25 };
static inline void vf610_adc_calculate_rates(struct vf610_adc *info)
{
struct vf610_adc_feature *adc_feature = &info->adc_feature;
unsigned long adck_rate, ipg_rate = clk_get_rate(info->clk);
+ u32 adck_period, lst_addr_min;
int divisor, i;
adck_rate = info->max_adck_rate[adc_feature->conv_mode];
@@ -174,6 +194,19 @@ static inline void vf610_adc_calculate_rates(struct vf610_adc *info)
}
/*
+ * Determine the long sample time adder value to be used based
+ * on the default minimum sample time provided.
+ */
+ adck_period = NSEC_PER_SEC / adck_rate;
+ lst_addr_min = adc_feature->default_sample_time / adck_period;
+ for (i = 0; i < ARRAY_SIZE(vf610_lst_adder); i++) {
+ if (vf610_lst_adder[i] > lst_addr_min) {
+ adc_feature->lst_adder_index = i;
+ break;
+ }
+ }
+
+ /*
* Calculate ADC sample frequencies
* Sample time unit is ADCK cycles. ADCK clk source is ipg clock,
* which is the same as bus clock.
@@ -182,12 +215,13 @@ static inline void vf610_adc_calculate_rates(struct vf610_adc *info)
* SFCAdder: fixed to 6 ADCK cycles
* AverageNum: 1, 4, 8, 16, 32 samples for hardware average.
* BCT (Base Conversion Time): fixed to 25 ADCK cycles for 12 bit mode
- * LSTAdder(Long Sample Time): fixed to 3 ADCK cycles
+ * LSTAdder(Long Sample Time): 3, 5, 7, 9, 13, 17, 21, 25 ADCK cycles
*/
adck_rate = ipg_rate / info->adc_feature.clk_div;
for (i = 0; i < ARRAY_SIZE(vf610_hw_avgs); i++)
info->sample_freq_avail[i] =
- adck_rate / (6 + vf610_hw_avgs[i] * (25 + 3));
+ adck_rate / (6 + vf610_hw_avgs[i] *
+ (25 + vf610_lst_adder[adc_feature->lst_adder_index]));
}
static inline void vf610_adc_cfg_init(struct vf610_adc *info)
@@ -347,8 +381,40 @@ static void vf610_adc_sample_set(struct vf610_adc *info)
break;
}
- /* Use the short sample mode */
- cfg_data &= ~(VF610_ADC_ADLSMP_LONG | VF610_ADC_ADSTS_MASK);
+ /*
+ * Set ADLSMP and ADSTS based on the Long Sample Time Adder value
+ * determined.
+ */
+ switch (adc_feature->lst_adder_index) {
+ case VF610_ADCK_CYCLES_3:
+ break;
+ case VF610_ADCK_CYCLES_5:
+ cfg_data |= VF610_ADC_ADSTS_SHORT;
+ break;
+ case VF610_ADCK_CYCLES_7:
+ cfg_data |= VF610_ADC_ADSTS_NORMAL;
+ break;
+ case VF610_ADCK_CYCLES_9:
+ cfg_data |= VF610_ADC_ADSTS_LONG;
+ break;
+ case VF610_ADCK_CYCLES_13:
+ cfg_data |= VF610_ADC_ADLSMP_LONG;
+ break;
+ case VF610_ADCK_CYCLES_17:
+ cfg_data |= VF610_ADC_ADLSMP_LONG;
+ cfg_data |= VF610_ADC_ADSTS_SHORT;
+ break;
+ case VF610_ADCK_CYCLES_21:
+ cfg_data |= VF610_ADC_ADLSMP_LONG;
+ cfg_data |= VF610_ADC_ADSTS_NORMAL;
+ break;
+ case VF610_ADCK_CYCLES_25:
+ cfg_data |= VF610_ADC_ADLSMP_LONG;
+ cfg_data |= VF610_ADC_ADSTS_NORMAL;
+ break;
+ default:
+ dev_err(info->dev, "error in sample time select\n");
+ }
/* update hardware average selection */
cfg_data &= ~VF610_ADC_AVGS_MASK;
@@ -713,6 +779,11 @@ static int vf610_adc_probe(struct platform_device *pdev)
of_property_read_u32_array(pdev->dev.of_node, "fsl,adck-max-frequency",
info->max_adck_rate, 3);
+ ret = of_property_read_u32(pdev->dev.of_node, "min-sample-time",
+ &info->adc_feature.default_sample_time);
+ if (ret)
+ info->adc_feature.default_sample_time = DEFAULT_SAMPLE_TIME;
+
platform_set_drvdata(pdev, indio_dev);
init_completion(&info->completion);
diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c
index 0748301d3..aaaf317c2 100644
--- a/drivers/iio/common/ssp_sensors/ssp_dev.c
+++ b/drivers/iio/common/ssp_sensors/ssp_dev.c
@@ -700,7 +700,6 @@ static struct spi_driver ssp_driver = {
.remove = ssp_remove,
.driver = {
.pm = &ssp_pm_ops,
- .bus = &spi_bus_type,
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(ssp_of_match),
.name = "sensorhub"
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 8086cbcff..2e7fdb502 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -126,6 +126,9 @@ static int st_sensors_set_fullscale(struct iio_dev *indio_dev, unsigned int fs)
int err, i = 0;
struct st_sensor_data *sdata = iio_priv(indio_dev);
+ if (sdata->sensor_settings->fs.addr == 0)
+ return 0;
+
err = st_sensors_match_fs(sdata->sensor_settings, fs, &i);
if (err < 0)
goto st_accel_set_fullscale_error;
@@ -479,46 +482,43 @@ int st_sensors_check_device_support(struct iio_dev *indio_dev,
int num_sensors_list,
const struct st_sensor_settings *sensor_settings)
{
- u8 wai;
int i, n, err;
+ u8 wai;
struct st_sensor_data *sdata = iio_priv(indio_dev);
- err = sdata->tf->read_byte(&sdata->tb, sdata->dev,
- ST_SENSORS_DEFAULT_WAI_ADDRESS, &wai);
- if (err < 0) {
- dev_err(&indio_dev->dev, "failed to read Who-Am-I register.\n");
- goto read_wai_error;
- }
-
for (i = 0; i < num_sensors_list; i++) {
- if (sensor_settings[i].wai == wai)
+ for (n = 0; n < ST_SENSORS_MAX_4WAI; n++) {
+ if (strcmp(indio_dev->name,
+ sensor_settings[i].sensors_supported[n]) == 0) {
+ break;
+ }
+ }
+ if (n < ST_SENSORS_MAX_4WAI)
break;
}
- if (i == num_sensors_list)
- goto device_not_supported;
+ if (i == num_sensors_list) {
+ dev_err(&indio_dev->dev, "device name %s not recognized.\n",
+ indio_dev->name);
+ return -ENODEV;
+ }
- for (n = 0; n < ARRAY_SIZE(sensor_settings[i].sensors_supported); n++) {
- if (strcmp(indio_dev->name,
- &sensor_settings[i].sensors_supported[n][0]) == 0)
- break;
+ err = sdata->tf->read_byte(&sdata->tb, sdata->dev,
+ sensor_settings[i].wai_addr, &wai);
+ if (err < 0) {
+ dev_err(&indio_dev->dev, "failed to read Who-Am-I register.\n");
+ return err;
}
- if (n == ARRAY_SIZE(sensor_settings[i].sensors_supported)) {
- dev_err(&indio_dev->dev, "device name \"%s\" and WhoAmI (0x%02x) mismatch",
- indio_dev->name, wai);
- goto sensor_name_mismatch;
+
+ if (sensor_settings[i].wai != wai) {
+ dev_err(&indio_dev->dev, "%s: WhoAmI mismatch (0x%x).\n",
+ indio_dev->name, wai);
+ return -EINVAL;
}
sdata->sensor_settings =
(struct st_sensor_settings *)&sensor_settings[i];
return i;
-
-device_not_supported:
- dev_err(&indio_dev->dev, "device not supported: WhoAmI (0x%x).\n", wai);
-sensor_name_mismatch:
- err = -ENODEV;
-read_wai_error:
- return err;
}
EXPORT_SYMBOL(st_sensors_check_device_support);
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index f03b92fd3..c067e6821 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -630,7 +630,6 @@ MODULE_DEVICE_TABLE(i2c, ad5064_i2c_ids);
static struct i2c_driver ad5064_i2c_driver = {
.driver = {
.name = "ad5064",
- .owner = THIS_MODULE,
},
.probe = ad5064_i2c_probe,
.remove = ad5064_i2c_remove,
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 9de4c4d38..130de9b3e 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -593,7 +593,6 @@ MODULE_DEVICE_TABLE(i2c, ad5380_i2c_ids);
static struct i2c_driver ad5380_i2c_driver = {
.driver = {
.name = "ad5380",
- .owner = THIS_MODULE,
},
.probe = ad5380_i2c_probe,
.remove = ad5380_i2c_remove,
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 46bb62a5c..07e17d72a 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -569,7 +569,6 @@ MODULE_DEVICE_TABLE(i2c, ad5446_i2c_ids);
static struct i2c_driver ad5446_i2c_driver = {
.driver = {
.name = "ad5446",
- .owner = THIS_MODULE,
},
.probe = ad5446_i2c_probe,
.remove = ad5446_i2c_remove,
diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
index 6e914495b..28b8748ea 100644
--- a/drivers/iio/dac/max5821.c
+++ b/drivers/iio/dac/max5821.c
@@ -392,7 +392,6 @@ static struct i2c_driver max5821_driver = {
.driver = {
.name = "max5821",
.pm = MAX5821_PM_OPS,
- .owner = THIS_MODULE,
},
.probe = max5821_probe,
.remove = max5821_remove,
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index 10a0dfc3b..9890c81c0 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -72,7 +72,6 @@ static int adf4350_sync_config(struct adf4350_state *st)
for (i = ADF4350_REG5; i >= ADF4350_REG0; i--) {
if ((st->regs_hw[i] != st->regs[i]) ||
((i == ADF4350_REG0) && doublebuf)) {
-
switch (i) {
case ADF4350_REG1:
case ADF4350_REG4:
diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c
index 591bd555e..26de876b2 100644
--- a/drivers/iio/gyro/adis16136.c
+++ b/drivers/iio/gyro/adis16136.c
@@ -473,6 +473,7 @@ enum adis16136_id {
ID_ADIS16133,
ID_ADIS16135,
ID_ADIS16136,
+ ID_ADIS16137,
};
static const struct adis16136_chip_info adis16136_chip_info[] = {
@@ -488,6 +489,10 @@ static const struct adis16136_chip_info adis16136_chip_info[] = {
.precision = IIO_DEGREE_TO_RAD(450),
.fullscale = 24623,
},
+ [ID_ADIS16137] = {
+ .precision = IIO_DEGREE_TO_RAD(1000),
+ .fullscale = 24609,
+ },
};
static int adis16136_probe(struct spi_device *spi)
@@ -557,6 +562,7 @@ static const struct spi_device_id adis16136_ids[] = {
{ "adis16133", ID_ADIS16133 },
{ "adis16135", ID_ADIS16135 },
{ "adis16136", ID_ADIS16136 },
+ { "adis16137", ID_ADIS16137 },
{ }
};
MODULE_DEVICE_TABLE(spi, adis16136_ids);
diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c
index 75fe0edd3..00c6ad9bf 100644
--- a/drivers/iio/gyro/adis16260.c
+++ b/drivers/iio/gyro/adis16260.c
@@ -101,19 +101,24 @@
#define ADIS16260_SCAN_TEMP 3
#define ADIS16260_SCAN_ANGL 4
-/* Power down the device */
-static int adis16260_stop_device(struct iio_dev *indio_dev)
-{
- struct adis *adis = iio_priv(indio_dev);
- int ret;
- u16 val = ADIS16260_SLP_CNT_POWER_OFF;
+struct adis16260_chip_info {
+ unsigned int gyro_max_val;
+ unsigned int gyro_max_scale;
+ const struct iio_chan_spec *channels;
+ unsigned int num_channels;
+};
- ret = adis_write_reg_16(adis, ADIS16260_SLP_CNT, val);
- if (ret)
- dev_err(&indio_dev->dev, "problem with turning device off: SLP_CNT");
+struct adis16260 {
+ const struct adis16260_chip_info *info;
- return ret;
-}
+ struct adis adis;
+};
+
+enum adis16260_type {
+ ADIS16251,
+ ADIS16260,
+ ADIS16266,
+};
static const struct iio_chan_spec adis16260_channels[] = {
ADIS_GYRO_CHAN(X, ADIS16260_GYRO_OUT, ADIS16260_SCAN_GYRO,
@@ -131,6 +136,55 @@ static const struct iio_chan_spec adis16260_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(5),
};
+static const struct iio_chan_spec adis16266_channels[] = {
+ ADIS_GYRO_CHAN(X, ADIS16260_GYRO_OUT, ADIS16260_SCAN_GYRO,
+ BIT(IIO_CHAN_INFO_CALIBBIAS) |
+ BIT(IIO_CHAN_INFO_CALIBSCALE),
+ BIT(IIO_CHAN_INFO_SAMP_FREQ), 14),
+ ADIS_TEMP_CHAN(ADIS16260_TEMP_OUT, ADIS16260_SCAN_TEMP,
+ BIT(IIO_CHAN_INFO_SAMP_FREQ), 12),
+ ADIS_SUPPLY_CHAN(ADIS16260_SUPPLY_OUT, ADIS16260_SCAN_SUPPLY,
+ BIT(IIO_CHAN_INFO_SAMP_FREQ), 12),
+ ADIS_AUX_ADC_CHAN(ADIS16260_AUX_ADC, ADIS16260_SCAN_AUX_ADC,
+ BIT(IIO_CHAN_INFO_SAMP_FREQ), 12),
+ IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static const struct adis16260_chip_info adis16260_chip_info_table[] = {
+ [ADIS16251] = {
+ .gyro_max_scale = 80,
+ .gyro_max_val = IIO_RAD_TO_DEGREE(4368),
+ .channels = adis16260_channels,
+ .num_channels = ARRAY_SIZE(adis16260_channels),
+ },
+ [ADIS16260] = {
+ .gyro_max_scale = 320,
+ .gyro_max_val = IIO_RAD_TO_DEGREE(4368),
+ .channels = adis16260_channels,
+ .num_channels = ARRAY_SIZE(adis16260_channels),
+ },
+ [ADIS16266] = {
+ .gyro_max_scale = 14000,
+ .gyro_max_val = IIO_RAD_TO_DEGREE(3357),
+ .channels = adis16266_channels,
+ .num_channels = ARRAY_SIZE(adis16266_channels),
+ },
+};
+
+/* Power down the device */
+static int adis16260_stop_device(struct iio_dev *indio_dev)
+{
+ struct adis16260 *adis16260 = iio_priv(indio_dev);
+ int ret;
+ u16 val = ADIS16260_SLP_CNT_POWER_OFF;
+
+ ret = adis_write_reg_16(&adis16260->adis, ADIS16260_SLP_CNT, val);
+ if (ret)
+ dev_err(&indio_dev->dev, "problem with turning device off: SLP_CNT");
+
+ return ret;
+}
+
static const u8 adis16260_addresses[][2] = {
[ADIS16260_SCAN_GYRO] = { ADIS16260_GYRO_OFF, ADIS16260_GYRO_SCALE },
};
@@ -140,7 +194,9 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
int *val, int *val2,
long mask)
{
- struct adis *adis = iio_priv(indio_dev);
+ struct adis16260 *adis16260 = iio_priv(indio_dev);
+ const struct adis16260_chip_info *info = adis16260->info;
+ struct adis *adis = &adis16260->adis;
int ret;
u8 addr;
s16 val16;
@@ -152,15 +208,9 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_ANGL_VEL:
- *val = 0;
- if (spi_get_device_id(adis->spi)->driver_data) {
- /* 0.01832 degree / sec */
- *val2 = IIO_DEGREE_TO_RAD(18320);
- } else {
- /* 0.07326 degree / sec */
- *val2 = IIO_DEGREE_TO_RAD(73260);
- }
- return IIO_VAL_INT_PLUS_MICRO;
+ *val = info->gyro_max_scale;
+ *val2 = info->gyro_max_val;
+ return IIO_VAL_FRACTIONAL;
case IIO_INCLI:
*val = 0;
*val2 = IIO_DEGREE_TO_RAD(36630);
@@ -224,7 +274,8 @@ static int adis16260_write_raw(struct iio_dev *indio_dev,
int val2,
long mask)
{
- struct adis *adis = iio_priv(indio_dev);
+ struct adis16260 *adis16260 = iio_priv(indio_dev);
+ struct adis *adis = &adis16260->adis;
int ret;
u8 addr;
u8 t;
@@ -305,35 +356,42 @@ static const struct adis_data adis16260_data = {
static int adis16260_probe(struct spi_device *spi)
{
+ const struct spi_device_id *id;
+ struct adis16260 *adis16260;
struct iio_dev *indio_dev;
- struct adis *adis;
int ret;
+ id = spi_get_device_id(spi);
+ if (!id)
+ return -ENODEV;
+
/* setup the industrialio driver allocated elements */
- indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adis));
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adis16260));
if (!indio_dev)
return -ENOMEM;
- adis = iio_priv(indio_dev);
+ adis16260 = iio_priv(indio_dev);
/* this is only used for removal purposes */
spi_set_drvdata(spi, indio_dev);
- indio_dev->name = spi_get_device_id(spi)->name;
+ adis16260->info = &adis16260_chip_info_table[id->driver_data];
+
+ indio_dev->name = id->name;
indio_dev->dev.parent = &spi->dev;
indio_dev->info = &adis16260_info;
- indio_dev->channels = adis16260_channels;
- indio_dev->num_channels = ARRAY_SIZE(adis16260_channels);
+ indio_dev->channels = adis16260->info->channels;
+ indio_dev->num_channels = adis16260->info->num_channels;
indio_dev->modes = INDIO_DIRECT_MODE;
- ret = adis_init(adis, indio_dev, spi, &adis16260_data);
+ ret = adis_init(&adis16260->adis, indio_dev, spi, &adis16260_data);
if (ret)
return ret;
- ret = adis_setup_buffer_and_trigger(adis, indio_dev, NULL);
+ ret = adis_setup_buffer_and_trigger(&adis16260->adis, indio_dev, NULL);
if (ret)
return ret;
/* Get the device into a sane initial state */
- ret = adis_initial_startup(adis);
+ ret = adis_initial_startup(&adis16260->adis);
if (ret)
goto error_cleanup_buffer_trigger;
ret = iio_device_register(indio_dev);
@@ -343,18 +401,18 @@ static int adis16260_probe(struct spi_device *spi)
return 0;
error_cleanup_buffer_trigger:
- adis_cleanup_buffer_and_trigger(adis, indio_dev);
+ adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev);
return ret;
}
static int adis16260_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
- struct adis *adis = iio_priv(indio_dev);
+ struct adis16260 *adis16260 = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
adis16260_stop_device(indio_dev);
- adis_cleanup_buffer_and_trigger(adis, indio_dev);
+ adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev);
return 0;
}
@@ -364,11 +422,12 @@ static int adis16260_remove(struct spi_device *spi)
* support for the on chip filtering.
*/
static const struct spi_device_id adis16260_id[] = {
- {"adis16260", 0},
- {"adis16265", 0},
- {"adis16250", 0},
- {"adis16255", 0},
- {"adis16251", 1},
+ {"adis16260", ADIS16260},
+ {"adis16265", ADIS16260},
+ {"adis16266", ADIS16266},
+ {"adis16250", ADIS16260},
+ {"adis16255", ADIS16260},
+ {"adis16251", ADIS16251},
{}
};
MODULE_DEVICE_TABLE(spi, adis16260_id);
diff --git a/drivers/iio/gyro/itg3200_core.c b/drivers/iio/gyro/itg3200_core.c
index f0fd94055..c102a6325 100644
--- a/drivers/iio/gyro/itg3200_core.c
+++ b/drivers/iio/gyro/itg3200_core.c
@@ -379,7 +379,6 @@ MODULE_DEVICE_TABLE(i2c, itg3200_id);
static struct i2c_driver itg3200_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = "itg3200",
.pm = &itg3200_pm_ops,
},
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index ffe96642b..4b993a5bc 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -131,6 +131,7 @@ static const struct iio_chan_spec st_gyro_16bit_channels[] = {
static const struct st_sensor_settings st_gyro_sensors_settings[] = {
{
.wai = ST_GYRO_1_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = L3G4200D_GYRO_DEV_NAME,
[1] = LSM330DL_GYRO_DEV_NAME,
@@ -190,6 +191,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
},
{
.wai = ST_GYRO_2_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = L3GD20_GYRO_DEV_NAME,
[1] = LSM330D_GYRO_DEV_NAME,
@@ -252,6 +254,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
},
{
.wai = ST_GYRO_3_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = L3GD20_GYRO_DEV_NAME,
},
diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c
index 64480b16c..6848451f8 100644
--- a/drivers/iio/gyro/st_gyro_i2c.c
+++ b/drivers/iio/gyro/st_gyro_i2c.c
@@ -99,7 +99,6 @@ MODULE_DEVICE_TABLE(i2c, st_gyro_id_table);
static struct i2c_driver st_gyro_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = "st-gyro-i2c",
.of_match_table = of_match_ptr(st_gyro_of_match),
},
diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c
index 7d79a1ac5..1165b1c4f 100644
--- a/drivers/iio/humidity/dht11.c
+++ b/drivers/iio/humidity/dht11.c
@@ -33,6 +33,7 @@
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
+#include <linux/timekeeping.h>
#include <linux/iio/iio.h>
@@ -46,7 +47,8 @@
* Note that when reading the sensor actually 84 edges are detected, but
* since the last edge is not significant, we only store 83:
*/
-#define DHT11_EDGES_PER_READ (2*DHT11_BITS_PER_READ + DHT11_EDGES_PREAMBLE + 1)
+#define DHT11_EDGES_PER_READ (2 * DHT11_BITS_PER_READ + \
+ DHT11_EDGES_PREAMBLE + 1)
/* Data transmission timing (nano seconds) */
#define DHT11_START_TRANSMISSION 18 /* ms */
@@ -62,6 +64,7 @@ struct dht11 {
int irq;
struct completion completion;
+ /* The iio sysfs interface doesn't prevent concurrent reads: */
struct mutex lock;
s64 timestamp;
@@ -87,32 +90,20 @@ static unsigned char dht11_decode_byte(int *timing, int threshold)
return ret;
}
-static int dht11_decode(struct dht11 *dht11, int offset)
+static int dht11_decode(struct dht11 *dht11, int offset, int timeres)
{
- int i, t, timing[DHT11_BITS_PER_READ], threshold,
- timeres = DHT11_SENSOR_RESPONSE;
+ int i, t, timing[DHT11_BITS_PER_READ], threshold;
unsigned char temp_int, temp_dec, hum_int, hum_dec, checksum;
- /* Calculate timestamp resolution */
- for (i = 1; i < dht11->num_edges; ++i) {
- t = dht11->edges[i].ts - dht11->edges[i-1].ts;
- if (t > 0 && t < timeres)
- timeres = t;
- }
- if (2*timeres > DHT11_DATA_BIT_HIGH) {
- pr_err("dht11: timeresolution %d too bad for decoding\n",
- timeres);
- return -EIO;
- }
threshold = DHT11_DATA_BIT_HIGH / timeres;
- if (DHT11_DATA_BIT_LOW/timeres + 1 >= threshold)
+ if (DHT11_DATA_BIT_LOW / timeres + 1 >= threshold)
pr_err("dht11: WARNING: decoding ambiguous\n");
/* scale down with timeres and check validity */
for (i = 0; i < DHT11_BITS_PER_READ; ++i) {
- t = dht11->edges[offset + 2*i + 2].ts -
- dht11->edges[offset + 2*i + 1].ts;
- if (!dht11->edges[offset + 2*i + 1].value)
+ t = dht11->edges[offset + 2 * i + 2].ts -
+ dht11->edges[offset + 2 * i + 1].ts;
+ if (!dht11->edges[offset + 2 * i + 1].value)
return -EIO; /* lost synchronisation */
timing[i] = t / timeres;
}
@@ -126,7 +117,7 @@ static int dht11_decode(struct dht11 *dht11, int offset)
if (((hum_int + hum_dec + temp_int + temp_dec) & 0xff) != checksum)
return -EIO;
- dht11->timestamp = iio_get_time_ns();
+ dht11->timestamp = ktime_get_real_ns();
if (hum_int < 20) { /* DHT22 */
dht11->temperature = (((temp_int & 0x7f) << 8) + temp_dec) *
((temp_int & 0x80) ? -100 : 100);
@@ -154,7 +145,7 @@ static irqreturn_t dht11_handle_irq(int irq, void *data)
/* TODO: Consider making the handler safe for IRQ sharing */
if (dht11->num_edges < DHT11_EDGES_PER_READ && dht11->num_edges >= 0) {
- dht11->edges[dht11->num_edges].ts = iio_get_time_ns();
+ dht11->edges[dht11->num_edges].ts = ktime_get_real_ns();
dht11->edges[dht11->num_edges++].value =
gpio_get_value(dht11->gpio);
@@ -166,14 +157,26 @@ static irqreturn_t dht11_handle_irq(int irq, void *data)
}
static int dht11_read_raw(struct iio_dev *iio_dev,
- const struct iio_chan_spec *chan,
+ const struct iio_chan_spec *chan,
int *val, int *val2, long m)
{
struct dht11 *dht11 = iio_priv(iio_dev);
- int ret;
+ int ret, timeres;
mutex_lock(&dht11->lock);
- if (dht11->timestamp + DHT11_DATA_VALID_TIME < iio_get_time_ns()) {
+ if (dht11->timestamp + DHT11_DATA_VALID_TIME < ktime_get_real_ns()) {
+ timeres = ktime_get_resolution_ns();
+ if (DHT11_DATA_BIT_HIGH < 2 * timeres) {
+ dev_err(dht11->dev, "timeresolution %dns too low\n",
+ timeres);
+ /* In theory a better clock could become available
+ * at some point ... and there is no error code
+ * that really fits better.
+ */
+ ret = -EAGAIN;
+ goto err;
+ }
+
reinit_completion(&dht11->completion);
dht11->num_edges = 0;
@@ -192,13 +195,13 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
goto err;
ret = wait_for_completion_killable_timeout(&dht11->completion,
- HZ);
+ HZ);
free_irq(dht11->irq, iio_dev);
if (ret == 0 && dht11->num_edges < DHT11_EDGES_PER_READ - 1) {
dev_err(&iio_dev->dev,
- "Only %d signal edges detected\n",
+ "Only %d signal edges detected\n",
dht11->num_edges);
ret = -ETIMEDOUT;
}
@@ -206,9 +209,10 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
goto err;
ret = dht11_decode(dht11,
- dht11->num_edges == DHT11_EDGES_PER_READ ?
+ dht11->num_edges == DHT11_EDGES_PER_READ ?
DHT11_EDGES_PREAMBLE :
- DHT11_EDGES_PREAMBLE - 2);
+ DHT11_EDGES_PREAMBLE - 2,
+ timeres);
if (ret)
goto err;
}
@@ -261,9 +265,10 @@ static int dht11_probe(struct platform_device *pdev)
dht11 = iio_priv(iio);
dht11->dev = dev;
- dht11->gpio = ret = of_get_gpio(node, 0);
+ ret = of_get_gpio(node, 0);
if (ret < 0)
return ret;
+ dht11->gpio = ret;
ret = devm_gpio_request_one(dev, dht11->gpio, GPIOF_IN, pdev->name);
if (ret)
return ret;
@@ -274,7 +279,7 @@ static int dht11_probe(struct platform_device *pdev)
return -EINVAL;
}
- dht11->timestamp = iio_get_time_ns() - DHT11_DATA_VALID_TIME - 1;
+ dht11->timestamp = ktime_get_real_ns() - DHT11_DATA_VALID_TIME - 1;
dht11->num_edges = -1;
platform_set_drvdata(pdev, iio);
diff --git a/drivers/iio/humidity/si7005.c b/drivers/iio/humidity/si7005.c
index bdd586e6d..91972ccd8 100644
--- a/drivers/iio/humidity/si7005.c
+++ b/drivers/iio/humidity/si7005.c
@@ -177,7 +177,6 @@ MODULE_DEVICE_TABLE(i2c, si7005_id);
static struct i2c_driver si7005_driver = {
.driver = {
.name = "si7005",
- .owner = THIS_MODULE,
},
.probe = si7005_probe,
.id_table = si7005_id,
diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c
index d42e4fe2c..abc4c50de 100644
--- a/drivers/iio/imu/adis16400_core.c
+++ b/drivers/iio/imu/adis16400_core.c
@@ -139,7 +139,9 @@ enum adis16400_chip_variant {
ADIS16360,
ADIS16362,
ADIS16364,
+ ADIS16367,
ADIS16400,
+ ADIS16445,
ADIS16448,
};
@@ -622,6 +624,17 @@ static const struct iio_chan_spec adis16400_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP),
};
+static const struct iio_chan_spec adis16445_channels[] = {
+ ADIS16400_GYRO_CHAN(X, ADIS16400_XGYRO_OUT, 16),
+ ADIS16400_GYRO_CHAN(Y, ADIS16400_YGYRO_OUT, 16),
+ ADIS16400_GYRO_CHAN(Z, ADIS16400_ZGYRO_OUT, 16),
+ ADIS16400_ACCEL_CHAN(X, ADIS16400_XACCL_OUT, 16),
+ ADIS16400_ACCEL_CHAN(Y, ADIS16400_YACCL_OUT, 16),
+ ADIS16400_ACCEL_CHAN(Z, ADIS16400_ZACCL_OUT, 16),
+ ADIS16400_TEMP_CHAN(ADIS16448_TEMP_OUT, 12),
+ IIO_CHAN_SOFT_TIMESTAMP(ADIS16400_SCAN_TIMESTAMP),
+};
+
static const struct iio_chan_spec adis16448_channels[] = {
ADIS16400_GYRO_CHAN(X, ADIS16400_XGYRO_OUT, 16),
ADIS16400_GYRO_CHAN(Y, ADIS16400_YGYRO_OUT, 16),
@@ -696,7 +709,8 @@ static struct adis16400_chip_info adis16400_chips[] = {
[ADIS16300] = {
.channels = adis16300_channels,
.num_channels = ARRAY_SIZE(adis16300_channels),
- .flags = ADIS16400_HAS_SLOW_MODE,
+ .flags = ADIS16400_HAS_PROD_ID | ADIS16400_HAS_SLOW_MODE |
+ ADIS16400_HAS_SERIAL_NUMBER,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = 5884,
.temp_scale_nano = 140000000, /* 0.14 C */
@@ -763,6 +777,18 @@ static struct adis16400_chip_info adis16400_chips[] = {
.set_freq = adis16400_set_freq,
.get_freq = adis16400_get_freq,
},
+ [ADIS16367] = {
+ .channels = adis16350_channels,
+ .num_channels = ARRAY_SIZE(adis16350_channels),
+ .flags = ADIS16400_HAS_PROD_ID | ADIS16400_HAS_SLOW_MODE |
+ ADIS16400_HAS_SERIAL_NUMBER,
+ .gyro_scale_micro = IIO_DEGREE_TO_RAD(2000), /* 0.2 deg/s */
+ .accel_scale_micro = IIO_G_TO_M_S_2(3333), /* 3.333 mg */
+ .temp_scale_nano = 136000000, /* 0.136 C */
+ .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
+ .set_freq = adis16400_set_freq,
+ .get_freq = adis16400_get_freq,
+ },
[ADIS16400] = {
.channels = adis16400_channels,
.num_channels = ARRAY_SIZE(adis16400_channels),
@@ -774,6 +800,19 @@ static struct adis16400_chip_info adis16400_chips[] = {
.set_freq = adis16400_set_freq,
.get_freq = adis16400_get_freq,
},
+ [ADIS16445] = {
+ .channels = adis16445_channels,
+ .num_channels = ARRAY_SIZE(adis16445_channels),
+ .flags = ADIS16400_HAS_PROD_ID |
+ ADIS16400_HAS_SERIAL_NUMBER |
+ ADIS16400_BURST_DIAG_STAT,
+ .gyro_scale_micro = IIO_DEGREE_TO_RAD(10000), /* 0.01 deg/s */
+ .accel_scale_micro = IIO_G_TO_M_S_2(250), /* 1/4000 g */
+ .temp_scale_nano = 73860000, /* 0.07386 C */
+ .temp_offset = 31000000 / 73860, /* 31 C = 0x00 */
+ .set_freq = adis16334_set_freq,
+ .get_freq = adis16334_get_freq,
+ },
[ADIS16448] = {
.channels = adis16448_channels,
.num_channels = ARRAY_SIZE(adis16448_channels),
@@ -926,6 +965,7 @@ static int adis16400_remove(struct spi_device *spi)
static const struct spi_device_id adis16400_id[] = {
{"adis16300", ADIS16300},
+ {"adis16305", ADIS16300},
{"adis16334", ADIS16334},
{"adis16350", ADIS16350},
{"adis16354", ADIS16350},
@@ -934,8 +974,10 @@ static const struct spi_device_id adis16400_id[] = {
{"adis16362", ADIS16362},
{"adis16364", ADIS16364},
{"adis16365", ADIS16360},
+ {"adis16367", ADIS16367},
{"adis16400", ADIS16400},
{"adis16405", ADIS16400},
+ {"adis16445", ADIS16445},
{"adis16448", ADIS16448},
{}
};
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 65ce86837..f0e06093b 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -690,6 +690,10 @@ static const struct iio_chan_spec inv_mpu_channels[] = {
/* constant IIO attribute */
static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("10 20 50 100 200 500");
+static IIO_CONST_ATTR(in_anglvel_scale_available,
+ "0.000133090 0.000266181 0.000532362 0.001064724");
+static IIO_CONST_ATTR(in_accel_scale_available,
+ "0.000598 0.001196 0.002392 0.004785");
static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR, inv_fifo_rate_show,
inv_mpu6050_fifo_rate_store);
static IIO_DEVICE_ATTR(in_gyro_matrix, S_IRUGO, inv_attr_show, NULL,
@@ -702,6 +706,8 @@ static struct attribute *inv_attributes[] = {
&iio_dev_attr_in_accel_matrix.dev_attr.attr,
&iio_dev_attr_sampling_frequency.dev_attr.attr,
&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+ &iio_const_attr_in_accel_scale_available.dev_attr.attr,
+ &iio_const_attr_in_anglvel_scale_available.dev_attr.attr,
NULL,
};
@@ -921,7 +927,6 @@ static struct i2c_driver inv_mpu_driver = {
.remove = inv_mpu_remove,
.id_table = inv_mpu_id,
.driver = {
- .owner = THIS_MODULE,
.name = "inv-mpu6050",
.pm = INV_MPU6050_PMOPS,
.acpi_match_table = ACPI_PTR(inv_acpi_match),
diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c
index 462a01062..82cdf5090 100644
--- a/drivers/iio/imu/kmx61.c
+++ b/drivers/iio/imu/kmx61.c
@@ -1363,7 +1363,7 @@ static int kmx61_probe(struct i2c_client *client,
if (client->irq < 0)
client->irq = kmx61_gpio_probe(client, data);
- if (client->irq >= 0) {
+ if (client->irq > 0) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
kmx61_data_rdy_trig_poll,
kmx61_event_handler,
@@ -1445,10 +1445,10 @@ err_iio_unregister_mag:
err_iio_unregister_acc:
iio_device_unregister(data->acc_indio_dev);
err_buffer_cleanup_mag:
- if (client->irq >= 0)
+ if (client->irq > 0)
iio_triggered_buffer_cleanup(data->mag_indio_dev);
err_buffer_cleanup_acc:
- if (client->irq >= 0)
+ if (client->irq > 0)
iio_triggered_buffer_cleanup(data->acc_indio_dev);
err_trigger_unregister_motion:
iio_trigger_unregister(data->motion_trig);
@@ -1472,7 +1472,7 @@ static int kmx61_remove(struct i2c_client *client)
iio_device_unregister(data->acc_indio_dev);
iio_device_unregister(data->mag_indio_dev);
- if (client->irq >= 0) {
+ if (client->irq > 0) {
iio_triggered_buffer_cleanup(data->acc_indio_dev);
iio_triggered_buffer_cleanup(data->mag_indio_dev);
iio_trigger_unregister(data->acc_dready_trig);
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index b3fda9ee4..d7e908acb 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -71,8 +71,9 @@ static bool iio_buffer_ready(struct iio_dev *indio_dev, struct iio_buffer *buf,
if (avail >= to_wait) {
/* force a flush for non-blocking reads */
- if (!to_wait && !avail && to_flush)
- iio_buffer_flush_hwfifo(indio_dev, buf, to_flush);
+ if (!to_wait && avail < to_flush)
+ iio_buffer_flush_hwfifo(indio_dev, buf,
+ to_flush - avail);
return true;
}
@@ -90,9 +91,16 @@ static bool iio_buffer_ready(struct iio_dev *indio_dev, struct iio_buffer *buf,
/**
* iio_buffer_read_first_n_outer() - chrdev read for buffer access
+ * @filp: File structure pointer for the char device
+ * @buf: Destination buffer for iio buffer read
+ * @n: First n bytes to read
+ * @f_ps: Long offset provided by the user as a seek position
*
* This function relies on all buffer implementations having an
* iio_buffer as their first element.
+ *
+ * Return: negative values corresponding to error codes or ret != 0
+ * for ending the reading activity
**/
ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
size_t n, loff_t *f_ps)
@@ -100,8 +108,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
struct iio_dev *indio_dev = filp->private_data;
struct iio_buffer *rb = indio_dev->buffer;
size_t datum_size;
- size_t to_wait = 0;
- size_t to_read;
+ size_t to_wait;
int ret;
if (!indio_dev->info)
@@ -119,14 +126,14 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
if (!datum_size)
return 0;
- to_read = min_t(size_t, n / datum_size, rb->watermark);
-
- if (!(filp->f_flags & O_NONBLOCK))
- to_wait = to_read;
+ if (filp->f_flags & O_NONBLOCK)
+ to_wait = 0;
+ else
+ to_wait = min_t(size_t, n / datum_size, rb->watermark);
do {
ret = wait_event_interruptible(rb->pollq,
- iio_buffer_ready(indio_dev, rb, to_wait, to_read));
+ iio_buffer_ready(indio_dev, rb, to_wait, n / datum_size));
if (ret)
return ret;
@@ -143,6 +150,12 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
/**
* iio_buffer_poll() - poll the buffer to find out if it has data
+ * @filp: File structure pointer for device access
+ * @wait: Poll table structure pointer for which the driver adds
+ * a wait queue
+ *
+ * Return: (POLLIN | POLLRDNORM) if data is available for reading
+ * or 0 for other cases
*/
unsigned int iio_buffer_poll(struct file *filp,
struct poll_table_struct *wait)
@@ -1136,7 +1149,7 @@ int iio_scan_mask_query(struct iio_dev *indio_dev,
EXPORT_SYMBOL_GPL(iio_scan_mask_query);
/**
- * struct iio_demux_table() - table describing demux memcpy ops
+ * struct iio_demux_table - table describing demux memcpy ops
* @from: index to copy from
* @to: index to copy to
* @length: how many bytes to copy
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 3524b0de8..b3fcc2c44 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -81,6 +81,14 @@ static const char * const iio_modifier_names[] = {
[IIO_MOD_X] = "x",
[IIO_MOD_Y] = "y",
[IIO_MOD_Z] = "z",
+ [IIO_MOD_X_AND_Y] = "x&y",
+ [IIO_MOD_X_AND_Z] = "x&z",
+ [IIO_MOD_Y_AND_Z] = "y&z",
+ [IIO_MOD_X_AND_Y_AND_Z] = "x&y&z",
+ [IIO_MOD_X_OR_Y] = "x|y",
+ [IIO_MOD_X_OR_Z] = "x|z",
+ [IIO_MOD_Y_OR_Z] = "y|z",
+ [IIO_MOD_X_OR_Y_OR_Z] = "x|y|z",
[IIO_MOD_ROOT_SUM_SQUARED_X_Y] = "sqrt(x^2+y^2)",
[IIO_MOD_SUM_SQUARED_X_Y_Z] = "x^2+y^2+z^2",
[IIO_MOD_LIGHT_BOTH] = "both",
@@ -398,10 +406,16 @@ EXPORT_SYMBOL_GPL(iio_enum_write);
/**
* iio_format_value() - Formats a IIO value into its string representation
- * @buf: The buffer to which the formated value gets written
- * @type: One of the IIO_VAL_... constants. This decides how the val and val2
- * parameters are formatted.
- * @vals: pointer to the values, exact meaning depends on the type parameter.
+ * @buf: The buffer to which the formatted value gets written
+ * @type: One of the IIO_VAL_... constants. This decides how the val
+ * and val2 parameters are formatted.
+ * @size: Number of IIO value entries contained in vals
+ * @vals: Pointer to the values, exact meaning depends on the
+ * type parameter.
+ *
+ * Return: 0 by default, a negative number on failure or the
+ * total number of characters written for a type that belongs
+ * to the IIO_VAL_... constant.
*/
ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals)
{
@@ -1088,6 +1102,11 @@ EXPORT_SYMBOL_GPL(devm_iio_device_free);
/**
* iio_chrdev_open() - chrdev file open for buffer access and ioctls
+ * @inode: Inode structure for identifying the device in the file system
+ * @filp: File structure for iio device used to keep and later access
+ * private data
+ *
+ * Return: 0 on success or -EBUSY if the device is already opened
**/
static int iio_chrdev_open(struct inode *inode, struct file *filp)
{
@@ -1106,7 +1125,11 @@ static int iio_chrdev_open(struct inode *inode, struct file *filp)
/**
* iio_chrdev_release() - chrdev file close buffer access and ioctls
- **/
+ * @inode: Inode structure pointer for the char device
+ * @filp: File structure pointer for the char device
+ *
+ * Return: 0 for successful release
+ */
static int iio_chrdev_release(struct inode *inode, struct file *filp)
{
struct iio_dev *indio_dev = container_of(inode->i_cdev,
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 52d4fcb0d..cae332b1d 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -32,6 +32,7 @@
* @dev_attr_list: list of event interface sysfs attribute
* @flags: file operations related flags including busy flag.
* @group: event interface sysfs attribute group
+ * @read_lock: lock to protect kfifo read operations
*/
struct iio_event_interface {
wait_queue_head_t wait;
@@ -75,6 +76,11 @@ EXPORT_SYMBOL(iio_push_event);
/**
* iio_event_poll() - poll the event queue to find out if it has data
+ * @filep: File structure pointer to identify the device
+ * @wait: Poll table pointer to add the wait queue on
+ *
+ * Return: (POLLIN | POLLRDNORM) if data is available for reading
+ * or a negative error code on failure
*/
static unsigned int iio_event_poll(struct file *filep,
struct poll_table_struct *wait)
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index d31098e0c..570606c2a 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -40,7 +40,14 @@ static DEFINE_MUTEX(iio_trigger_list_lock);
/**
* iio_trigger_read_name() - retrieve useful identifying name
- **/
+ * @dev: device associated with the iio_trigger
+ * @attr: pointer to the device_attribute structure that is
+ * being processed
+ * @buf: buffer to print the name into
+ *
+ * Return: a negative number on failure or the number of written
+ * characters on success.
+ */
static ssize_t iio_trigger_read_name(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -288,10 +295,17 @@ EXPORT_SYMBOL_GPL(iio_dealloc_pollfunc);
/**
* iio_trigger_read_current() - trigger consumer sysfs query current trigger
+ * @dev: device associated with an industrial I/O device
+ * @attr: pointer to the device_attribute structure that
+ * is being processed
+ * @buf: buffer where the current trigger name will be printed into
*
* For trigger consumers the current_trigger interface allows the trigger
* used by the device to be queried.
- **/
+ *
+ * Return: a negative number on failure, the number of characters written
+ * on success or 0 if no trigger is available
+ */
static ssize_t iio_trigger_read_current(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -305,11 +319,18 @@ static ssize_t iio_trigger_read_current(struct device *dev,
/**
* iio_trigger_write_current() - trigger consumer sysfs set current trigger
+ * @dev: device associated with an industrial I/O device
+ * @attr: device attribute that is being processed
+ * @buf: string buffer that holds the name of the trigger
+ * @len: length of the trigger name held by buf
*
* For trigger consumers the current_trigger interface allows the trigger
* used for this device to be specified at run time based on the trigger's
* name.
- **/
+ *
+ * Return: negative error code on failure or length of the buffer
+ * on success
+ */
static ssize_t iio_trigger_write_current(struct device *dev,
struct device_attribute *attr,
const char *buf,
diff --git a/drivers/iio/industrialio-triggered-buffer.c b/drivers/iio/industrialio-triggered-buffer.c
index 15a5341b5..4b2858ba1 100644
--- a/drivers/iio/industrialio-triggered-buffer.c
+++ b/drivers/iio/industrialio-triggered-buffer.c
@@ -24,8 +24,8 @@ static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
/**
* iio_triggered_buffer_setup() - Setup triggered buffer and pollfunc
* @indio_dev: IIO device structure
- * @pollfunc_bh: Function which will be used as pollfunc bottom half
- * @pollfunc_th: Function which will be used as pollfunc top half
+ * @h: Function which will be used as pollfunc top half
+ * @thread: Function which will be used as pollfunc bottom half
* @setup_ops: Buffer setup functions to use for this device.
* If NULL the default setup functions for triggered
* buffers will be used.
@@ -42,8 +42,8 @@ static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
* iio_triggered_buffer_cleanup().
*/
int iio_triggered_buffer_setup(struct iio_dev *indio_dev,
- irqreturn_t (*pollfunc_bh)(int irq, void *p),
- irqreturn_t (*pollfunc_th)(int irq, void *p),
+ irqreturn_t (*h)(int irq, void *p),
+ irqreturn_t (*thread)(int irq, void *p),
const struct iio_buffer_setup_ops *setup_ops)
{
struct iio_buffer *buffer;
@@ -57,8 +57,8 @@ int iio_triggered_buffer_setup(struct iio_dev *indio_dev,
iio_device_attach_buffer(indio_dev, buffer);
- indio_dev->pollfunc = iio_alloc_pollfunc(pollfunc_bh,
- pollfunc_th,
+ indio_dev->pollfunc = iio_alloc_pollfunc(h,
+ thread,
IRQF_ONESHOT,
indio_dev,
"%s_consumer%d",
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index a5c59251e..7ed859a70 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -86,7 +86,7 @@ config CM3323
depends on I2C
tristate "Capella CM3323 color light sensor"
help
- Say Y here if you want to build a driver for Capela CM3323
+ Say Y here if you want to build a driver for Capella CM3323
color sensor.
To compile this driver as a module, choose M here: the module will
@@ -168,6 +168,17 @@ config JSA1212
To compile this driver as a module, choose M here:
the module will be called jsa1212.
+config RPR0521
+ tristate "ROHM RPR0521 ALS and proximity sensor driver"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say Y here if you want to build support for ROHM's RPR0521
+ ambient light and proximity sensor device.
+
+ To compile this driver as a module, choose M here:
+ the module will be called rpr0521.
+
config SENSORS_LM3533
tristate "LM3533 ambient light sensor"
depends on MFD_LM3533
@@ -199,6 +210,27 @@ config LTR501
This driver can also be built as a module. If so, the module
will be called ltr501.
+config OPT3001
+ tristate "Texas Instruments OPT3001 Light Sensor"
+ depends on I2C
+ help
+ If you say Y or M here, you get support for Texas Instruments
+ OPT3001 Ambient Light Sensor.
+
+ If built as a dynamically linked module, it will be called
+ opt3001.
+
+config PA12203001
+ tristate "TXC PA12203001 light and proximity sensor"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ If you say yes here you get support for the TXC PA12203001
+ ambient light and proximity sensor.
+
+ This driver can also be built as a module. If so, the module
+ will be called pa12203001.
+
config STK3310
tristate "STK3310 ALS and proximity sensor"
depends on I2C
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index e2d50fd59..91c74c014 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -19,6 +19,9 @@ obj-$(CONFIG_ISL29125) += isl29125.o
obj-$(CONFIG_JSA1212) += jsa1212.o
obj-$(CONFIG_SENSORS_LM3533) += lm3533-als.o
obj-$(CONFIG_LTR501) += ltr501.o
+obj-$(CONFIG_OPT3001) += opt3001.o
+obj-$(CONFIG_PA12203001) += pa12203001.o
+obj-$(CONFIG_RPR0521) += rpr0521.o
obj-$(CONFIG_SENSORS_TSL2563) += tsl2563.o
obj-$(CONFIG_STK3310) += stk3310.o
obj-$(CONFIG_TCS3414) += tcs3414.o
diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c
index 1dafa0756..60537ec0c 100644
--- a/drivers/iio/light/acpi-als.c
+++ b/drivers/iio/light/acpi-als.c
@@ -65,20 +65,20 @@ static const struct iio_chan_spec acpi_als_channels[] = {
* to acpi_als_channels[], the evt_buffer below will grow
* automatically.
*/
-#define EVT_NR_SOURCES ARRAY_SIZE(acpi_als_channels)
-#define EVT_BUFFER_SIZE \
- (sizeof(s64) + (EVT_NR_SOURCES * sizeof(s32)))
+#define ACPI_ALS_EVT_NR_SOURCES ARRAY_SIZE(acpi_als_channels)
+#define ACPI_ALS_EVT_BUFFER_SIZE \
+ (sizeof(s64) + (ACPI_ALS_EVT_NR_SOURCES * sizeof(s32)))
struct acpi_als {
struct acpi_device *device;
struct mutex lock;
- s32 evt_buffer[EVT_BUFFER_SIZE];
+ s32 evt_buffer[ACPI_ALS_EVT_BUFFER_SIZE];
};
/*
* All types of properties the ACPI0008 block can report. The ALI, ALC, ALT
- * and ALP can all be handled by als_read_value() below, while the ALR is
+ * and ALP can all be handled by acpi_als_read_value() below, while the ALR is
* special.
*
* The _ALR property returns tables that can be used to fine-tune the values
@@ -93,7 +93,7 @@ struct acpi_als {
#define ACPI_ALS_POLLING "_ALP"
#define ACPI_ALS_TABLES "_ALR"
-static int als_read_value(struct acpi_als *als, char *prop, s32 *val)
+static int acpi_als_read_value(struct acpi_als *als, char *prop, s32 *val)
{
unsigned long long temp_val;
acpi_status status;
@@ -122,11 +122,11 @@ static void acpi_als_notify(struct acpi_device *device, u32 event)
mutex_lock(&als->lock);
- memset(buffer, 0, EVT_BUFFER_SIZE);
+ memset(buffer, 0, ACPI_ALS_EVT_BUFFER_SIZE);
switch (event) {
case ACPI_ALS_NOTIFY_ILLUMINANCE:
- ret = als_read_value(als, ACPI_ALS_ILLUMINANCE, &val);
+ ret = acpi_als_read_value(als, ACPI_ALS_ILLUMINANCE, &val);
if (ret < 0)
goto out;
*buffer++ = val;
@@ -159,7 +159,7 @@ static int acpi_als_read_raw(struct iio_dev *indio_dev,
if (chan->type != IIO_LIGHT)
return -EINVAL;
- ret = als_read_value(als, ACPI_ALS_ILLUMINANCE, &temp_val);
+ ret = acpi_als_read_value(als, ACPI_ALS_ILLUMINANCE, &temp_val);
if (ret < 0)
return ret;
diff --git a/drivers/iio/light/apds9300.c b/drivers/iio/light/apds9300.c
index 9ddde0ca9..e1b9fa5a7 100644
--- a/drivers/iio/light/apds9300.c
+++ b/drivers/iio/light/apds9300.c
@@ -515,7 +515,6 @@ MODULE_DEVICE_TABLE(i2c, apds9300_id);
static struct i2c_driver apds9300_driver = {
.driver = {
.name = APDS9300_DRV_NAME,
- .owner = THIS_MODULE,
.pm = APDS9300_PM_OPS,
},
.probe = apds9300_probe,
diff --git a/drivers/iio/light/bh1750.c b/drivers/iio/light/bh1750.c
index 564c2b3c1..8b4164343 100644
--- a/drivers/iio/light/bh1750.c
+++ b/drivers/iio/light/bh1750.c
@@ -319,7 +319,6 @@ MODULE_DEVICE_TABLE(i2c, bh1750_id);
static struct i2c_driver bh1750_driver = {
.driver = {
.name = "bh1750",
- .owner = THIS_MODULE,
.pm = BH1750_PM_OPS,
},
.probe = bh1750_probe,
diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c
index 5d12ae54d..d6fd0dace 100644
--- a/drivers/iio/light/cm32181.c
+++ b/drivers/iio/light/cm32181.c
@@ -353,12 +353,12 @@ static const struct of_device_id cm32181_of_match[] = {
{ .compatible = "capella,cm32181" },
{ }
};
+MODULE_DEVICE_TABLE(of, cm32181_of_match);
static struct i2c_driver cm32181_driver = {
.driver = {
.name = "cm32181",
.of_match_table = of_match_ptr(cm32181_of_match),
- .owner = THIS_MODULE,
},
.id_table = cm32181_id,
.probe = cm32181_probe,
diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c
index 39c8d99cc..fe89b6823 100644
--- a/drivers/iio/light/cm3232.c
+++ b/drivers/iio/light/cm3232.c
@@ -417,11 +417,11 @@ static const struct of_device_id cm3232_of_match[] = {
{.compatible = "capella,cm3232"},
{}
};
+MODULE_DEVICE_TABLE(of, cm3232_of_match);
static struct i2c_driver cm3232_driver = {
.driver = {
.name = "cm3232",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(cm3232_of_match),
#ifdef CONFIG_PM_SLEEP
.pm = &cm3232_pm_ops,
diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c
index a1d4905cc..d823c112d 100644
--- a/drivers/iio/light/cm3323.c
+++ b/drivers/iio/light/cm3323.c
@@ -29,7 +29,7 @@
#define CM3323_CONF_SD_BIT BIT(0) /* sensor disable */
#define CM3323_CONF_AF_BIT BIT(1) /* auto/manual force mode */
-#define CM3323_CONF_IT_MASK (BIT(4) | BIT(5) | BIT(6))
+#define CM3323_CONF_IT_MASK GENMASK(6, 4)
#define CM3323_CONF_IT_SHIFT 4
#define CM3323_INT_TIME_AVAILABLE "0.04 0.08 0.16 0.32 0.64 1.28"
@@ -133,9 +133,11 @@ static int cm3323_set_it_bits(struct cm3323_data *data, int val, int val2)
return ret;
data->reg_conf = reg_conf;
+
return 0;
}
}
+
return -EINVAL;
}
@@ -148,6 +150,7 @@ static int cm3323_get_it_bits(struct cm3323_data *data)
if (bits >= ARRAY_SIZE(cm3323_int_time))
return -EINVAL;
+
return bits;
}
@@ -155,7 +158,7 @@ static int cm3323_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val,
int *val2, long mask)
{
- int i, ret;
+ int ret;
struct cm3323_data *data = iio_priv(indio_dev);
switch (mask) {
@@ -172,14 +175,14 @@ static int cm3323_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
case IIO_CHAN_INFO_INT_TIME:
mutex_lock(&data->mutex);
- i = cm3323_get_it_bits(data);
- if (i < 0) {
+ ret = cm3323_get_it_bits(data);
+ if (ret < 0) {
mutex_unlock(&data->mutex);
- return -EINVAL;
+ return ret;
}
- *val = cm3323_int_time[i].val;
- *val2 = cm3323_int_time[i].val2;
+ *val = cm3323_int_time[ret].val;
+ *val2 = cm3323_int_time[ret].val2;
mutex_unlock(&data->mutex);
return IIO_VAL_INT_PLUS_MICRO;
@@ -243,11 +246,13 @@ static int cm3323_probe(struct i2c_client *client,
dev_err(&client->dev, "cm3323 chip init failed\n");
return ret;
}
+
ret = iio_device_register(indio_dev);
if (ret < 0) {
dev_err(&client->dev, "failed to register iio dev\n");
goto err_init;
}
+
return 0;
err_init:
cm3323_disable(indio_dev);
diff --git a/drivers/iio/light/cm36651.c b/drivers/iio/light/cm36651.c
index 39fc67e82..c8d7b5ea7 100644
--- a/drivers/iio/light/cm36651.c
+++ b/drivers/iio/light/cm36651.c
@@ -731,12 +731,12 @@ static const struct of_device_id cm36651_of_match[] = {
{ .compatible = "capella,cm36651" },
{ }
};
+MODULE_DEVICE_TABLE(of, cm36651_of_match);
static struct i2c_driver cm36651_driver = {
.driver = {
.name = "cm36651",
.of_match_table = cm36651_of_match,
- .owner = THIS_MODULE,
},
.probe = cm36651_probe,
.remove = cm36651_remove,
diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 32b644983..6d41086f7 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -1634,13 +1634,13 @@ static const struct of_device_id gp2ap020a00f_of_match[] = {
{ .compatible = "sharp,gp2ap020a00f" },
{ }
};
+MODULE_DEVICE_TABLE(of, gp2ap020a00f_of_match);
#endif
static struct i2c_driver gp2ap020a00f_driver = {
.driver = {
.name = GP2A_I2C_NAME,
.of_match_table = of_match_ptr(gp2ap020a00f_of_match),
- .owner = THIS_MODULE,
},
.probe = gp2ap020a00f_probe,
.remove = gp2ap020a00f_remove,
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 0d248476f..45ca056f0 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -284,8 +284,7 @@ static int hid_prox_probe(struct platform_device *pdev)
goto error_free_dev_mem;
}
- indio_dev->num_channels =
- ARRAY_SIZE(prox_channels);
+ indio_dev->num_channels = ARRAY_SIZE(prox_channels);
indio_dev->dev.parent = &pdev->dev;
indio_dev->info = &prox_info;
indio_dev->name = name;
diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c
index c82f4a6f8..e2945a20e 100644
--- a/drivers/iio/light/isl29125.c
+++ b/drivers/iio/light/isl29125.c
@@ -197,9 +197,21 @@ done:
return IRQ_HANDLED;
}
+static IIO_CONST_ATTR(scale_available, "0.005722 0.152590");
+
+static struct attribute *isl29125_attributes[] = {
+ &iio_const_attr_scale_available.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group isl29125_attribute_group = {
+ .attrs = isl29125_attributes,
+};
+
static const struct iio_info isl29125_info = {
.read_raw = isl29125_read_raw,
.write_raw = isl29125_write_raw,
+ .attrs = &isl29125_attribute_group,
.driver_module = THIS_MODULE,
};
@@ -334,7 +346,6 @@ static struct i2c_driver isl29125_driver = {
.driver = {
.name = ISL29125_DRV_NAME,
.pm = &isl29125_pm_ops,
- .owner = THIS_MODULE,
},
.probe = isl29125_probe,
.remove = isl29125_remove,
diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c
index 3a3af89be..c4e8c6b6c 100644
--- a/drivers/iio/light/jsa1212.c
+++ b/drivers/iio/light/jsa1212.c
@@ -457,7 +457,6 @@ static struct i2c_driver jsa1212_driver = {
.driver = {
.name = JSA1212_DRIVER_NAME,
.pm = JSA1212_PM_OPS,
- .owner = THIS_MODULE,
.acpi_match_table = ACPI_PTR(jsa1212_acpi_match),
},
.probe = jsa1212_probe,
diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index b5a0e66b5..809a961b9 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1551,7 +1551,6 @@ static struct i2c_driver ltr501_driver = {
.name = LTR501_DRV_NAME,
.pm = &ltr501_pm_ops,
.acpi_match_table = ACPI_PTR(ltr_acpi_match),
- .owner = THIS_MODULE,
},
.probe = ltr501_probe,
.remove = ltr501_remove,
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
new file mode 100644
index 000000000..923aa6aef
--- /dev/null
+++ b/drivers/iio/light/opt3001.c
@@ -0,0 +1,804 @@
+/**
+ * opt3001.c - Texas Instruments OPT3001 Light Sensor
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Andreas Dannenberg <dannenberg@ti.com>
+ * Based on previous work from: Felipe Balbi <balbi@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 of the License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <linux/iio/events.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define OPT3001_RESULT 0x00
+#define OPT3001_CONFIGURATION 0x01
+#define OPT3001_LOW_LIMIT 0x02
+#define OPT3001_HIGH_LIMIT 0x03
+#define OPT3001_MANUFACTURER_ID 0x7e
+#define OPT3001_DEVICE_ID 0x7f
+
+#define OPT3001_CONFIGURATION_RN_MASK (0xf << 12)
+#define OPT3001_CONFIGURATION_RN_AUTO (0xc << 12)
+
+#define OPT3001_CONFIGURATION_CT BIT(11)
+
+#define OPT3001_CONFIGURATION_M_MASK (3 << 9)
+#define OPT3001_CONFIGURATION_M_SHUTDOWN (0 << 9)
+#define OPT3001_CONFIGURATION_M_SINGLE (1 << 9)
+#define OPT3001_CONFIGURATION_M_CONTINUOUS (2 << 9) /* also 3 << 9 */
+
+#define OPT3001_CONFIGURATION_OVF BIT(8)
+#define OPT3001_CONFIGURATION_CRF BIT(7)
+#define OPT3001_CONFIGURATION_FH BIT(6)
+#define OPT3001_CONFIGURATION_FL BIT(5)
+#define OPT3001_CONFIGURATION_L BIT(4)
+#define OPT3001_CONFIGURATION_POL BIT(3)
+#define OPT3001_CONFIGURATION_ME BIT(2)
+
+#define OPT3001_CONFIGURATION_FC_MASK (3 << 0)
+
+/* The end-of-conversion enable is located in the low-limit register */
+#define OPT3001_LOW_LIMIT_EOC_ENABLE 0xc000
+
+#define OPT3001_REG_EXPONENT(n) ((n) >> 12)
+#define OPT3001_REG_MANTISSA(n) ((n) & 0xfff)
+
+/*
+ * Time to wait for conversion result to be ready. The device datasheet
+ * worst-case max value is 880ms. Add some slack to be on the safe side.
+ */
+#define OPT3001_RESULT_READY_TIMEOUT msecs_to_jiffies(1000)
+
+struct opt3001 {
+ struct i2c_client *client;
+ struct device *dev;
+
+ struct mutex lock;
+ u16 ok_to_ignore_lock:1;
+ u16 result_ready:1;
+ wait_queue_head_t result_ready_queue;
+ u16 result;
+
+ u32 int_time;
+ u32 mode;
+
+ u16 high_thresh_mantissa;
+ u16 low_thresh_mantissa;
+
+ u8 high_thresh_exp;
+ u8 low_thresh_exp;
+};
+
+struct opt3001_scale {
+ int val;
+ int val2;
+};
+
+static const struct opt3001_scale opt3001_scales[] = {
+ {
+ .val = 40,
+ .val2 = 950000,
+ },
+ {
+ .val = 81,
+ .val2 = 900000,
+ },
+ {
+ .val = 163,
+ .val2 = 800000,
+ },
+ {
+ .val = 327,
+ .val2 = 600000,
+ },
+ {
+ .val = 655,
+ .val2 = 200000,
+ },
+ {
+ .val = 1310,
+ .val2 = 400000,
+ },
+ {
+ .val = 2620,
+ .val2 = 800000,
+ },
+ {
+ .val = 5241,
+ .val2 = 600000,
+ },
+ {
+ .val = 10483,
+ .val2 = 200000,
+ },
+ {
+ .val = 20966,
+ .val2 = 400000,
+ },
+ {
+ .val = 83865,
+ .val2 = 600000,
+ },
+};
+
+static int opt3001_find_scale(const struct opt3001 *opt, int val,
+ int val2, u8 *exponent)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(opt3001_scales); i++) {
+ const struct opt3001_scale *scale = &opt3001_scales[i];
+
+ /*
+ * Combine the integer and micro parts for comparison
+ * purposes. Use milli lux precision to avoid 32-bit integer
+ * overflows.
+ */
+ if ((val * 1000 + val2 / 1000) <=
+ (scale->val * 1000 + scale->val2 / 1000)) {
+ *exponent = i;
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static void opt3001_to_iio_ret(struct opt3001 *opt, u8 exponent,
+ u16 mantissa, int *val, int *val2)
+{
+ int lux;
+
+ lux = 10 * (mantissa << exponent);
+ *val = lux / 1000;
+ *val2 = (lux - (*val * 1000)) * 1000;
+}
+
+static void opt3001_set_mode(struct opt3001 *opt, u16 *reg, u16 mode)
+{
+ *reg &= ~OPT3001_CONFIGURATION_M_MASK;
+ *reg |= mode;
+ opt->mode = mode;
+}
+
+static IIO_CONST_ATTR_INT_TIME_AVAIL("0.1 0.8");
+
+static struct attribute *opt3001_attributes[] = {
+ &iio_const_attr_integration_time_available.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group opt3001_attribute_group = {
+ .attrs = opt3001_attributes,
+};
+
+static const struct iio_event_spec opt3001_event_spec[] = {
+ {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_RISING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE) |
+ BIT(IIO_EV_INFO_ENABLE),
+ },
+ {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_FALLING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE) |
+ BIT(IIO_EV_INFO_ENABLE),
+ },
+};
+
+static const struct iio_chan_spec opt3001_channels[] = {
+ {
+ .type = IIO_LIGHT,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+ BIT(IIO_CHAN_INFO_INT_TIME),
+ .event_spec = opt3001_event_spec,
+ .num_event_specs = ARRAY_SIZE(opt3001_event_spec),
+ },
+ IIO_CHAN_SOFT_TIMESTAMP(1),
+};
+
+static int opt3001_get_lux(struct opt3001 *opt, int *val, int *val2)
+{
+ int ret;
+ u16 mantissa;
+ u16 reg;
+ u8 exponent;
+ u16 value;
+
+ /*
+ * Enable the end-of-conversion interrupt mechanism. Note that doing
+ * so will overwrite the low-level limit value however we will restore
+ * this value later on.
+ */
+ ret = i2c_smbus_write_word_swapped(opt->client, OPT3001_LOW_LIMIT,
+ OPT3001_LOW_LIMIT_EOC_ENABLE);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to write register %02x\n",
+ OPT3001_LOW_LIMIT);
+ return ret;
+ }
+
+ /* Reset data-ready indicator flag (will be set in the IRQ routine) */
+ opt->result_ready = false;
+
+ /* Allow IRQ to access the device despite lock being set */
+ opt->ok_to_ignore_lock = true;
+
+ /* Configure for single-conversion mode and start a new conversion */
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_CONFIGURATION);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_CONFIGURATION);
+ goto err;
+ }
+
+ reg = ret;
+ opt3001_set_mode(opt, &reg, OPT3001_CONFIGURATION_M_SINGLE);
+
+ ret = i2c_smbus_write_word_swapped(opt->client, OPT3001_CONFIGURATION,
+ reg);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to write register %02x\n",
+ OPT3001_CONFIGURATION);
+ goto err;
+ }
+
+ /* Wait for the IRQ to indicate the conversion is complete */
+ ret = wait_event_timeout(opt->result_ready_queue, opt->result_ready,
+ OPT3001_RESULT_READY_TIMEOUT);
+
+err:
+ /* Disallow IRQ to access the device while lock is active */
+ opt->ok_to_ignore_lock = false;
+
+ if (ret == 0)
+ return -ETIMEDOUT;
+ else if (ret < 0)
+ return ret;
+
+ /*
+ * Disable the end-of-conversion interrupt mechanism by restoring the
+ * low-level limit value (clearing OPT3001_LOW_LIMIT_EOC_ENABLE). Note
+ * that selectively clearing those enable bits would affect the actual
+ * limit value due to bit-overlap and therefore can't be done.
+ */
+ value = (opt->low_thresh_exp << 12) | opt->low_thresh_mantissa;
+ ret = i2c_smbus_write_word_swapped(opt->client, OPT3001_LOW_LIMIT,
+ value);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to write register %02x\n",
+ OPT3001_LOW_LIMIT);
+ return ret;
+ }
+
+ exponent = OPT3001_REG_EXPONENT(opt->result);
+ mantissa = OPT3001_REG_MANTISSA(opt->result);
+
+ opt3001_to_iio_ret(opt, exponent, mantissa, val, val2);
+
+ return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static int opt3001_get_int_time(struct opt3001 *opt, int *val, int *val2)
+{
+ *val = 0;
+ *val2 = opt->int_time;
+
+ return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static int opt3001_set_int_time(struct opt3001 *opt, int time)
+{
+ int ret;
+ u16 reg;
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_CONFIGURATION);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_CONFIGURATION);
+ return ret;
+ }
+
+ reg = ret;
+
+ switch (time) {
+ case 100000:
+ reg &= ~OPT3001_CONFIGURATION_CT;
+ opt->int_time = 100000;
+ break;
+ case 800000:
+ reg |= OPT3001_CONFIGURATION_CT;
+ opt->int_time = 800000;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return i2c_smbus_write_word_swapped(opt->client, OPT3001_CONFIGURATION,
+ reg);
+}
+
+static int opt3001_read_raw(struct iio_dev *iio,
+ struct iio_chan_spec const *chan, int *val, int *val2,
+ long mask)
+{
+ struct opt3001 *opt = iio_priv(iio);
+ int ret;
+
+ if (opt->mode == OPT3001_CONFIGURATION_M_CONTINUOUS)
+ return -EBUSY;
+
+ if (chan->type != IIO_LIGHT)
+ return -EINVAL;
+
+ mutex_lock(&opt->lock);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_PROCESSED:
+ ret = opt3001_get_lux(opt, val, val2);
+ break;
+ case IIO_CHAN_INFO_INT_TIME:
+ ret = opt3001_get_int_time(opt, val, val2);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ mutex_unlock(&opt->lock);
+
+ return ret;
+}
+
+static int opt3001_write_raw(struct iio_dev *iio,
+ struct iio_chan_spec const *chan, int val, int val2,
+ long mask)
+{
+ struct opt3001 *opt = iio_priv(iio);
+ int ret;
+
+ if (opt->mode == OPT3001_CONFIGURATION_M_CONTINUOUS)
+ return -EBUSY;
+
+ if (chan->type != IIO_LIGHT)
+ return -EINVAL;
+
+ if (mask != IIO_CHAN_INFO_INT_TIME)
+ return -EINVAL;
+
+ if (val != 0)
+ return -EINVAL;
+
+ mutex_lock(&opt->lock);
+ ret = opt3001_set_int_time(opt, val2);
+ mutex_unlock(&opt->lock);
+
+ return ret;
+}
+
+static int opt3001_read_event_value(struct iio_dev *iio,
+ const struct iio_chan_spec *chan, enum iio_event_type type,
+ enum iio_event_direction dir, enum iio_event_info info,
+ int *val, int *val2)
+{
+ struct opt3001 *opt = iio_priv(iio);
+ int ret = IIO_VAL_INT_PLUS_MICRO;
+
+ mutex_lock(&opt->lock);
+
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ opt3001_to_iio_ret(opt, opt->high_thresh_exp,
+ opt->high_thresh_mantissa, val, val2);
+ break;
+ case IIO_EV_DIR_FALLING:
+ opt3001_to_iio_ret(opt, opt->low_thresh_exp,
+ opt->low_thresh_mantissa, val, val2);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ mutex_unlock(&opt->lock);
+
+ return ret;
+}
+
+static int opt3001_write_event_value(struct iio_dev *iio,
+ const struct iio_chan_spec *chan, enum iio_event_type type,
+ enum iio_event_direction dir, enum iio_event_info info,
+ int val, int val2)
+{
+ struct opt3001 *opt = iio_priv(iio);
+ int ret;
+
+ u16 mantissa;
+ u16 value;
+ u16 reg;
+
+ u8 exponent;
+
+ if (val < 0)
+ return -EINVAL;
+
+ mutex_lock(&opt->lock);
+
+ ret = opt3001_find_scale(opt, val, val2, &exponent);
+ if (ret < 0) {
+ dev_err(opt->dev, "can't find scale for %d.%06u\n", val, val2);
+ goto err;
+ }
+
+ mantissa = (((val * 1000) + (val2 / 1000)) / 10) >> exponent;
+ value = (exponent << 12) | mantissa;
+
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ reg = OPT3001_HIGH_LIMIT;
+ opt->high_thresh_mantissa = mantissa;
+ opt->high_thresh_exp = exponent;
+ break;
+ case IIO_EV_DIR_FALLING:
+ reg = OPT3001_LOW_LIMIT;
+ opt->low_thresh_mantissa = mantissa;
+ opt->low_thresh_exp = exponent;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = i2c_smbus_write_word_swapped(opt->client, reg, value);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to write register %02x\n", reg);
+ goto err;
+ }
+
+err:
+ mutex_unlock(&opt->lock);
+
+ return ret;
+}
+
+static int opt3001_read_event_config(struct iio_dev *iio,
+ const struct iio_chan_spec *chan, enum iio_event_type type,
+ enum iio_event_direction dir)
+{
+ struct opt3001 *opt = iio_priv(iio);
+
+ return opt->mode == OPT3001_CONFIGURATION_M_CONTINUOUS;
+}
+
+static int opt3001_write_event_config(struct iio_dev *iio,
+ const struct iio_chan_spec *chan, enum iio_event_type type,
+ enum iio_event_direction dir, int state)
+{
+ struct opt3001 *opt = iio_priv(iio);
+ int ret;
+ u16 mode;
+ u16 reg;
+
+ if (state && opt->mode == OPT3001_CONFIGURATION_M_CONTINUOUS)
+ return 0;
+
+ if (!state && opt->mode == OPT3001_CONFIGURATION_M_SHUTDOWN)
+ return 0;
+
+ mutex_lock(&opt->lock);
+
+ mode = state ? OPT3001_CONFIGURATION_M_CONTINUOUS
+ : OPT3001_CONFIGURATION_M_SHUTDOWN;
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_CONFIGURATION);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_CONFIGURATION);
+ goto err;
+ }
+
+ reg = ret;
+ opt3001_set_mode(opt, &reg, mode);
+
+ ret = i2c_smbus_write_word_swapped(opt->client, OPT3001_CONFIGURATION,
+ reg);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to write register %02x\n",
+ OPT3001_CONFIGURATION);
+ goto err;
+ }
+
+err:
+ mutex_unlock(&opt->lock);
+
+ return ret;
+}
+
+static const struct iio_info opt3001_info = {
+ .driver_module = THIS_MODULE,
+ .attrs = &opt3001_attribute_group,
+ .read_raw = opt3001_read_raw,
+ .write_raw = opt3001_write_raw,
+ .read_event_value = opt3001_read_event_value,
+ .write_event_value = opt3001_write_event_value,
+ .read_event_config = opt3001_read_event_config,
+ .write_event_config = opt3001_write_event_config,
+};
+
+static int opt3001_read_id(struct opt3001 *opt)
+{
+ char manufacturer[2];
+ u16 device_id;
+ int ret;
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_MANUFACTURER_ID);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_MANUFACTURER_ID);
+ return ret;
+ }
+
+ manufacturer[0] = ret >> 8;
+ manufacturer[1] = ret & 0xff;
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_DEVICE_ID);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_DEVICE_ID);
+ return ret;
+ }
+
+ device_id = ret;
+
+ dev_info(opt->dev, "Found %c%c OPT%04x\n", manufacturer[0],
+ manufacturer[1], device_id);
+
+ return 0;
+}
+
+static int opt3001_configure(struct opt3001 *opt)
+{
+ int ret;
+ u16 reg;
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_CONFIGURATION);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_CONFIGURATION);
+ return ret;
+ }
+
+ reg = ret;
+
+ /* Enable automatic full-scale setting mode */
+ reg &= ~OPT3001_CONFIGURATION_RN_MASK;
+ reg |= OPT3001_CONFIGURATION_RN_AUTO;
+
+ /* Reflect status of the device's integration time setting */
+ if (reg & OPT3001_CONFIGURATION_CT)
+ opt->int_time = 800000;
+ else
+ opt->int_time = 100000;
+
+ /* Ensure device is in shutdown initially */
+ opt3001_set_mode(opt, &reg, OPT3001_CONFIGURATION_M_SHUTDOWN);
+
+ /* Configure for latched window-style comparison operation */
+ reg |= OPT3001_CONFIGURATION_L;
+ reg &= ~OPT3001_CONFIGURATION_POL;
+ reg &= ~OPT3001_CONFIGURATION_ME;
+ reg &= ~OPT3001_CONFIGURATION_FC_MASK;
+
+ ret = i2c_smbus_write_word_swapped(opt->client, OPT3001_CONFIGURATION,
+ reg);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to write register %02x\n",
+ OPT3001_CONFIGURATION);
+ return ret;
+ }
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_LOW_LIMIT);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_LOW_LIMIT);
+ return ret;
+ }
+
+ opt->low_thresh_mantissa = OPT3001_REG_MANTISSA(ret);
+ opt->low_thresh_exp = OPT3001_REG_EXPONENT(ret);
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_HIGH_LIMIT);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_HIGH_LIMIT);
+ return ret;
+ }
+
+ opt->high_thresh_mantissa = OPT3001_REG_MANTISSA(ret);
+ opt->high_thresh_exp = OPT3001_REG_EXPONENT(ret);
+
+ return 0;
+}
+
+static irqreturn_t opt3001_irq(int irq, void *_iio)
+{
+ struct iio_dev *iio = _iio;
+ struct opt3001 *opt = iio_priv(iio);
+ int ret;
+
+ if (!opt->ok_to_ignore_lock)
+ mutex_lock(&opt->lock);
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_CONFIGURATION);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_CONFIGURATION);
+ goto out;
+ }
+
+ if ((ret & OPT3001_CONFIGURATION_M_MASK) ==
+ OPT3001_CONFIGURATION_M_CONTINUOUS) {
+ if (ret & OPT3001_CONFIGURATION_FH)
+ iio_push_event(iio,
+ IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_RISING),
+ iio_get_time_ns());
+ if (ret & OPT3001_CONFIGURATION_FL)
+ iio_push_event(iio,
+ IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_FALLING),
+ iio_get_time_ns());
+ } else if (ret & OPT3001_CONFIGURATION_CRF) {
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_RESULT);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_RESULT);
+ goto out;
+ }
+ opt->result = ret;
+ opt->result_ready = true;
+ wake_up(&opt->result_ready_queue);
+ }
+
+out:
+ if (!opt->ok_to_ignore_lock)
+ mutex_unlock(&opt->lock);
+
+ return IRQ_HANDLED;
+}
+
+static int opt3001_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+
+ struct iio_dev *iio;
+ struct opt3001 *opt;
+ int irq = client->irq;
+ int ret;
+
+ iio = devm_iio_device_alloc(dev, sizeof(*opt));
+ if (!iio)
+ return -ENOMEM;
+
+ opt = iio_priv(iio);
+ opt->client = client;
+ opt->dev = dev;
+
+ mutex_init(&opt->lock);
+ init_waitqueue_head(&opt->result_ready_queue);
+ i2c_set_clientdata(client, iio);
+
+ ret = opt3001_read_id(opt);
+ if (ret)
+ return ret;
+
+ ret = opt3001_configure(opt);
+ if (ret)
+ return ret;
+
+ iio->name = client->name;
+ iio->channels = opt3001_channels;
+ iio->num_channels = ARRAY_SIZE(opt3001_channels);
+ iio->dev.parent = dev;
+ iio->modes = INDIO_DIRECT_MODE;
+ iio->info = &opt3001_info;
+
+ ret = devm_iio_device_register(dev, iio);
+ if (ret) {
+ dev_err(dev, "failed to register IIO device\n");
+ return ret;
+ }
+
+ ret = request_threaded_irq(irq, NULL, opt3001_irq,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "opt3001", iio);
+ if (ret) {
+ dev_err(dev, "failed to request IRQ #%d\n", irq);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int opt3001_remove(struct i2c_client *client)
+{
+ struct iio_dev *iio = i2c_get_clientdata(client);
+ struct opt3001 *opt = iio_priv(iio);
+ int ret;
+ u16 reg;
+
+ free_irq(client->irq, iio);
+
+ ret = i2c_smbus_read_word_swapped(opt->client, OPT3001_CONFIGURATION);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to read register %02x\n",
+ OPT3001_CONFIGURATION);
+ return ret;
+ }
+
+ reg = ret;
+ opt3001_set_mode(opt, &reg, OPT3001_CONFIGURATION_M_SHUTDOWN);
+
+ ret = i2c_smbus_write_word_swapped(opt->client, OPT3001_CONFIGURATION,
+ reg);
+ if (ret < 0) {
+ dev_err(opt->dev, "failed to write register %02x\n",
+ OPT3001_CONFIGURATION);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct i2c_device_id opt3001_id[] = {
+ { "opt3001", 0 },
+ { } /* Terminating Entry */
+};
+MODULE_DEVICE_TABLE(i2c, opt3001_id);
+
+static const struct of_device_id opt3001_of_match[] = {
+ { .compatible = "ti,opt3001" },
+ { }
+};
+
+static struct i2c_driver opt3001_driver = {
+ .probe = opt3001_probe,
+ .remove = opt3001_remove,
+ .id_table = opt3001_id,
+
+ .driver = {
+ .name = "opt3001",
+ .of_match_table = of_match_ptr(opt3001_of_match),
+ .owner = THIS_MODULE,
+ },
+};
+
+module_i2c_driver(opt3001_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Andreas Dannenberg <dannenberg@ti.com>");
+MODULE_DESCRIPTION("Texas Instruments OPT3001 Light Sensor Driver");
diff --git a/drivers/iio/light/pa12203001.c b/drivers/iio/light/pa12203001.c
new file mode 100644
index 000000000..45f7bde02
--- /dev/null
+++ b/drivers/iio/light/pa12203001.c
@@ -0,0 +1,483 @@
+/*
+ * Copyright (c) 2015 Intel Corporation
+ *
+ * Driver for TXC PA12203001 Proximity and Ambient Light Sensor.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ * To do: Interrupt support.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/mutex.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#define PA12203001_DRIVER_NAME "pa12203001"
+
+#define PA12203001_REG_CFG0 0x00
+#define PA12203001_REG_CFG1 0x01
+#define PA12203001_REG_CFG2 0x02
+#define PA12203001_REG_CFG3 0x03
+
+#define PA12203001_REG_ADL 0x0b
+#define PA12203001_REG_PDH 0x0e
+
+#define PA12203001_REG_POFS 0x10
+#define PA12203001_REG_PSET 0x11
+
+#define PA12203001_ALS_EN_MASK BIT(0)
+#define PA12203001_PX_EN_MASK BIT(1)
+#define PA12203001_PX_NORMAL_MODE_MASK GENMASK(7, 6)
+#define PA12203001_AFSR_MASK GENMASK(5, 4)
+#define PA12203001_AFSR_SHIFT 4
+
+#define PA12203001_PSCAN 0x03
+
+/* als range 31000, ps, als disabled */
+#define PA12203001_REG_CFG0_DEFAULT 0x30
+
+/* led current: 100 mA */
+#define PA12203001_REG_CFG1_DEFAULT 0x20
+
+/* ps mode: normal, interrupts not active */
+#define PA12203001_REG_CFG2_DEFAULT 0xcc
+
+#define PA12203001_REG_CFG3_DEFAULT 0x00
+
+#define PA12203001_SLEEP_DELAY_MS 3000
+
+#define PA12203001_CHIP_ENABLE 0xff
+#define PA12203001_CHIP_DISABLE 0x00
+
+/* available scales: corresponding to [500, 4000, 7000, 31000] lux */
+static const int pa12203001_scales[] = { 7629, 61036, 106813, 473029};
+
+struct pa12203001_data {
+ struct i2c_client *client;
+
+ /* protect device states */
+ struct mutex lock;
+
+ bool als_enabled;
+ bool px_enabled;
+ bool als_needs_enable;
+ bool px_needs_enable;
+
+ struct regmap *map;
+};
+
+static const struct {
+ u8 reg;
+ u8 val;
+} regvals[] = {
+ {PA12203001_REG_CFG0, PA12203001_REG_CFG0_DEFAULT},
+ {PA12203001_REG_CFG1, PA12203001_REG_CFG1_DEFAULT},
+ {PA12203001_REG_CFG2, PA12203001_REG_CFG2_DEFAULT},
+ {PA12203001_REG_CFG3, PA12203001_REG_CFG3_DEFAULT},
+ {PA12203001_REG_PSET, PA12203001_PSCAN},
+};
+
+static IIO_CONST_ATTR(in_illuminance_scale_available,
+ "0.007629 0.061036 0.106813 0.473029");
+
+static struct attribute *pa12203001_attrs[] = {
+ &iio_const_attr_in_illuminance_scale_available.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group pa12203001_attr_group = {
+ .attrs = pa12203001_attrs,
+};
+
+static const struct iio_chan_spec pa12203001_channels[] = {
+ {
+ .type = IIO_LIGHT,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ },
+ {
+ .type = IIO_PROXIMITY,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }
+};
+
+static const struct regmap_range pa12203001_volatile_regs_ranges[] = {
+ regmap_reg_range(PA12203001_REG_ADL, PA12203001_REG_ADL + 1),
+ regmap_reg_range(PA12203001_REG_PDH, PA12203001_REG_PDH),
+};
+
+static const struct regmap_access_table pa12203001_volatile_regs = {
+ .yes_ranges = pa12203001_volatile_regs_ranges,
+ .n_yes_ranges = ARRAY_SIZE(pa12203001_volatile_regs_ranges),
+};
+
+static const struct regmap_config pa12203001_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = PA12203001_REG_PSET,
+ .cache_type = REGCACHE_RBTREE,
+ .volatile_table = &pa12203001_volatile_regs,
+};
+
+static inline int pa12203001_als_enable(struct pa12203001_data *data, u8 enable)
+{
+ int ret;
+
+ ret = regmap_update_bits(data->map, PA12203001_REG_CFG0,
+ PA12203001_ALS_EN_MASK, enable);
+ if (ret < 0)
+ return ret;
+
+ data->als_enabled = !!enable;
+
+ return 0;
+}
+
+static inline int pa12203001_px_enable(struct pa12203001_data *data, u8 enable)
+{
+ int ret;
+
+ ret = regmap_update_bits(data->map, PA12203001_REG_CFG0,
+ PA12203001_PX_EN_MASK, enable);
+ if (ret < 0)
+ return ret;
+
+ data->px_enabled = !!enable;
+
+ return 0;
+}
+
+static int pa12203001_set_power_state(struct pa12203001_data *data, bool on,
+ u8 mask)
+{
+#ifdef CONFIG_PM
+ int ret;
+
+ if (on && (mask & PA12203001_ALS_EN_MASK)) {
+ mutex_lock(&data->lock);
+ if (data->px_enabled) {
+ ret = pa12203001_als_enable(data,
+ PA12203001_ALS_EN_MASK);
+ if (ret < 0)
+ goto err;
+ } else {
+ data->als_needs_enable = true;
+ }
+ mutex_unlock(&data->lock);
+ }
+
+ if (on && (mask & PA12203001_PX_EN_MASK)) {
+ mutex_lock(&data->lock);
+ if (data->als_enabled) {
+ ret = pa12203001_px_enable(data, PA12203001_PX_EN_MASK);
+ if (ret < 0)
+ goto err;
+ } else {
+ data->px_needs_enable = true;
+ }
+ mutex_unlock(&data->lock);
+ }
+
+ if (on) {
+ ret = pm_runtime_get_sync(&data->client->dev);
+ if (ret < 0)
+ pm_runtime_put_noidle(&data->client->dev);
+
+ } else {
+ pm_runtime_mark_last_busy(&data->client->dev);
+ ret = pm_runtime_put_autosuspend(&data->client->dev);
+ }
+
+ return ret;
+
+err:
+ mutex_unlock(&data->lock);
+ return ret;
+
+#endif
+ return 0;
+}
+
+static int pa12203001_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int *val,
+ int *val2, long mask)
+{
+ struct pa12203001_data *data = iio_priv(indio_dev);
+ int ret;
+ u8 dev_mask;
+ unsigned int reg_byte;
+ __le16 reg_word;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ switch (chan->type) {
+ case IIO_LIGHT:
+ dev_mask = PA12203001_ALS_EN_MASK;
+ ret = pa12203001_set_power_state(data, true, dev_mask);
+ if (ret < 0)
+ return ret;
+ /*
+ * ALS ADC value is stored in registers
+ * PA12203001_REG_ADL and in PA12203001_REG_ADL + 1.
+ */
+ ret = regmap_bulk_read(data->map, PA12203001_REG_ADL,
+ &reg_word, 2);
+ if (ret < 0)
+ goto reg_err;
+
+ *val = le16_to_cpu(reg_word);
+ ret = pa12203001_set_power_state(data, false, dev_mask);
+ if (ret < 0)
+ return ret;
+ break;
+ case IIO_PROXIMITY:
+ dev_mask = PA12203001_PX_EN_MASK;
+ ret = pa12203001_set_power_state(data, true, dev_mask);
+ if (ret < 0)
+ return ret;
+ ret = regmap_read(data->map, PA12203001_REG_PDH,
+ &reg_byte);
+ if (ret < 0)
+ goto reg_err;
+
+ *val = reg_byte;
+ ret = pa12203001_set_power_state(data, false, dev_mask);
+ if (ret < 0)
+ return ret;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ ret = regmap_read(data->map, PA12203001_REG_CFG0, &reg_byte);
+ if (ret < 0)
+ return ret;
+ *val = 0;
+ reg_byte = (reg_byte & PA12203001_AFSR_MASK);
+ *val2 = pa12203001_scales[reg_byte >> 4];
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+
+reg_err:
+ pa12203001_set_power_state(data, false, dev_mask);
+ return ret;
+}
+
+static int pa12203001_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int val,
+ int val2, long mask)
+{
+ struct pa12203001_data *data = iio_priv(indio_dev);
+ int i, ret, new_val;
+ unsigned int reg_byte;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_SCALE:
+ ret = regmap_read(data->map, PA12203001_REG_CFG0, &reg_byte);
+ if (val != 0 || ret < 0)
+ return -EINVAL;
+ for (i = 0; i < ARRAY_SIZE(pa12203001_scales); i++) {
+ if (val2 == pa12203001_scales[i]) {
+ new_val = i << PA12203001_AFSR_SHIFT;
+ return regmap_update_bits(data->map,
+ PA12203001_REG_CFG0,
+ PA12203001_AFSR_MASK,
+ new_val);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static const struct iio_info pa12203001_info = {
+ .driver_module = THIS_MODULE,
+ .read_raw = pa12203001_read_raw,
+ .write_raw = pa12203001_write_raw,
+ .attrs = &pa12203001_attr_group,
+};
+
+static int pa12203001_init(struct iio_dev *indio_dev)
+{
+ struct pa12203001_data *data = iio_priv(indio_dev);
+ int i, ret;
+
+ for (i = 0; i < ARRAY_SIZE(regvals); i++) {
+ ret = regmap_write(data->map, regvals[i].reg, regvals[i].val);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int pa12203001_power_chip(struct iio_dev *indio_dev, u8 state)
+{
+ struct pa12203001_data *data = iio_priv(indio_dev);
+ int ret;
+
+ mutex_lock(&data->lock);
+ ret = pa12203001_als_enable(data, state);
+ if (ret < 0)
+ goto out;
+
+ ret = pa12203001_px_enable(data, state);
+
+out:
+ mutex_unlock(&data->lock);
+ return ret;
+}
+
+static int pa12203001_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct pa12203001_data *data;
+ struct iio_dev *indio_dev;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&client->dev,
+ sizeof(struct pa12203001_data));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ data = iio_priv(indio_dev);
+ i2c_set_clientdata(client, indio_dev);
+ data->client = client;
+
+ data->map = devm_regmap_init_i2c(client, &pa12203001_regmap_config);
+ if (IS_ERR(data->map))
+ return PTR_ERR(data->map);
+
+ mutex_init(&data->lock);
+
+ indio_dev->dev.parent = &client->dev;
+ indio_dev->info = &pa12203001_info;
+ indio_dev->name = PA12203001_DRIVER_NAME;
+ indio_dev->channels = pa12203001_channels;
+ indio_dev->num_channels = ARRAY_SIZE(pa12203001_channels);
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ ret = pa12203001_init(indio_dev);
+ if (ret < 0)
+ return ret;
+
+ ret = pa12203001_power_chip(indio_dev, PA12203001_CHIP_ENABLE);
+ if (ret < 0)
+ return ret;
+
+ ret = pm_runtime_set_active(&client->dev);
+ if (ret < 0) {
+ pa12203001_power_chip(indio_dev, PA12203001_CHIP_DISABLE);
+ return ret;
+ }
+
+ pm_runtime_enable(&client->dev);
+ pm_runtime_set_autosuspend_delay(&client->dev,
+ PA12203001_SLEEP_DELAY_MS);
+ pm_runtime_use_autosuspend(&client->dev);
+
+ return iio_device_register(indio_dev);
+}
+
+static int pa12203001_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+ iio_device_unregister(indio_dev);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+
+ return pa12203001_power_chip(indio_dev, PA12203001_CHIP_DISABLE);
+}
+
+#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM)
+static int pa12203001_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+
+ return pa12203001_power_chip(indio_dev, PA12203001_CHIP_DISABLE);
+}
+#endif
+
+#ifdef CONFIG_PM_SLEEP
+static int pa12203001_resume(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+
+ return pa12203001_power_chip(indio_dev, PA12203001_CHIP_ENABLE);
+}
+#endif
+
+#ifdef CONFIG_PM
+static int pa12203001_runtime_resume(struct device *dev)
+{
+ struct pa12203001_data *data;
+
+ data = iio_priv(i2c_get_clientdata(to_i2c_client(dev)));
+
+ mutex_lock(&data->lock);
+ if (data->als_needs_enable) {
+ pa12203001_als_enable(data, PA12203001_ALS_EN_MASK);
+ data->als_needs_enable = false;
+ }
+ if (data->px_needs_enable) {
+ pa12203001_px_enable(data, PA12203001_PX_EN_MASK);
+ data->px_needs_enable = false;
+ }
+ mutex_unlock(&data->lock);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops pa12203001_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(pa12203001_suspend, pa12203001_resume)
+ SET_RUNTIME_PM_OPS(pa12203001_suspend, pa12203001_runtime_resume, NULL)
+};
+
+static const struct acpi_device_id pa12203001_acpi_match[] = {
+ { "TXCPA122", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(acpi, pa12203001_acpi_match);
+
+static const struct i2c_device_id pa12203001_id[] = {
+ {"txcpa122", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, pa12203001_id);
+
+static struct i2c_driver pa12203001_driver = {
+ .driver = {
+ .name = PA12203001_DRIVER_NAME,
+ .pm = &pa12203001_pm_ops,
+ .acpi_match_table = ACPI_PTR(pa12203001_acpi_match),
+ },
+ .probe = pa12203001_probe,
+ .remove = pa12203001_remove,
+ .id_table = pa12203001_id,
+
+};
+module_i2c_driver(pa12203001_driver);
+
+MODULE_AUTHOR("Adriana Reus <adriana.reus@intel.com>");
+MODULE_DESCRIPTION("Driver for TXC PA12203001 Proximity and Light Sensor");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c
new file mode 100644
index 000000000..4b75bb099
--- /dev/null
+++ b/drivers/iio/light/rpr0521.c
@@ -0,0 +1,615 @@
+/*
+ * RPR-0521 ROHM Ambient Light and Proximity Sensor
+ *
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * IIO driver for RPR-0521RS (7-bit I2C slave address 0x38).
+ *
+ * TODO: illuminance channel, PM support, buffer
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/delay.h>
+#include <linux/acpi.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/pm_runtime.h>
+
+#define RPR0521_REG_SYSTEM_CTRL 0x40
+#define RPR0521_REG_MODE_CTRL 0x41
+#define RPR0521_REG_ALS_CTRL 0x42
+#define RPR0521_REG_PXS_CTRL 0x43
+#define RPR0521_REG_PXS_DATA 0x44 /* 16-bit, little endian */
+#define RPR0521_REG_ALS_DATA0 0x46 /* 16-bit, little endian */
+#define RPR0521_REG_ALS_DATA1 0x48 /* 16-bit, little endian */
+#define RPR0521_REG_ID 0x92
+
+#define RPR0521_MODE_ALS_MASK BIT(7)
+#define RPR0521_MODE_PXS_MASK BIT(6)
+#define RPR0521_MODE_MEAS_TIME_MASK GENMASK(3, 0)
+#define RPR0521_ALS_DATA0_GAIN_MASK GENMASK(5, 4)
+#define RPR0521_ALS_DATA0_GAIN_SHIFT 4
+#define RPR0521_ALS_DATA1_GAIN_MASK GENMASK(3, 2)
+#define RPR0521_ALS_DATA1_GAIN_SHIFT 2
+#define RPR0521_PXS_GAIN_MASK GENMASK(5, 4)
+#define RPR0521_PXS_GAIN_SHIFT 4
+
+#define RPR0521_MODE_ALS_ENABLE BIT(7)
+#define RPR0521_MODE_ALS_DISABLE 0x00
+#define RPR0521_MODE_PXS_ENABLE BIT(6)
+#define RPR0521_MODE_PXS_DISABLE 0x00
+
+#define RPR0521_MANUFACT_ID 0xE0
+#define RPR0521_DEFAULT_MEAS_TIME 0x06 /* ALS - 100ms, PXS - 100ms */
+
+#define RPR0521_DRV_NAME "RPR0521"
+#define RPR0521_REGMAP_NAME "rpr0521_regmap"
+
+#define RPR0521_SLEEP_DELAY_MS 2000
+
+#define RPR0521_ALS_SCALE_AVAIL "0.007812 0.015625 0.5 1"
+#define RPR0521_PXS_SCALE_AVAIL "0.125 0.5 1"
+
+struct rpr0521_gain {
+ int scale;
+ int uscale;
+};
+
+static const struct rpr0521_gain rpr0521_als_gain[4] = {
+ {1, 0}, /* x1 */
+ {0, 500000}, /* x2 */
+ {0, 15625}, /* x64 */
+ {0, 7812}, /* x128 */
+};
+
+static const struct rpr0521_gain rpr0521_pxs_gain[3] = {
+ {1, 0}, /* x1 */
+ {0, 500000}, /* x2 */
+ {0, 125000}, /* x4 */
+};
+
+enum rpr0521_channel {
+ RPR0521_CHAN_ALS_DATA0,
+ RPR0521_CHAN_ALS_DATA1,
+ RPR0521_CHAN_PXS,
+};
+
+struct rpr0521_reg_desc {
+ u8 address;
+ u8 device_mask;
+};
+
+static const struct rpr0521_reg_desc rpr0521_data_reg[] = {
+ [RPR0521_CHAN_ALS_DATA0] = {
+ .address = RPR0521_REG_ALS_DATA0,
+ .device_mask = RPR0521_MODE_ALS_MASK,
+ },
+ [RPR0521_CHAN_ALS_DATA1] = {
+ .address = RPR0521_REG_ALS_DATA1,
+ .device_mask = RPR0521_MODE_ALS_MASK,
+ },
+ [RPR0521_CHAN_PXS] = {
+ .address = RPR0521_REG_PXS_DATA,
+ .device_mask = RPR0521_MODE_PXS_MASK,
+ },
+};
+
+static const struct rpr0521_gain_info {
+ u8 reg;
+ u8 mask;
+ u8 shift;
+ const struct rpr0521_gain *gain;
+ int size;
+} rpr0521_gain[] = {
+ [RPR0521_CHAN_ALS_DATA0] = {
+ .reg = RPR0521_REG_ALS_CTRL,
+ .mask = RPR0521_ALS_DATA0_GAIN_MASK,
+ .shift = RPR0521_ALS_DATA0_GAIN_SHIFT,
+ .gain = rpr0521_als_gain,
+ .size = ARRAY_SIZE(rpr0521_als_gain),
+ },
+ [RPR0521_CHAN_ALS_DATA1] = {
+ .reg = RPR0521_REG_ALS_CTRL,
+ .mask = RPR0521_ALS_DATA1_GAIN_MASK,
+ .shift = RPR0521_ALS_DATA1_GAIN_SHIFT,
+ .gain = rpr0521_als_gain,
+ .size = ARRAY_SIZE(rpr0521_als_gain),
+ },
+ [RPR0521_CHAN_PXS] = {
+ .reg = RPR0521_REG_PXS_CTRL,
+ .mask = RPR0521_PXS_GAIN_MASK,
+ .shift = RPR0521_PXS_GAIN_SHIFT,
+ .gain = rpr0521_pxs_gain,
+ .size = ARRAY_SIZE(rpr0521_pxs_gain),
+ },
+};
+
+struct rpr0521_data {
+ struct i2c_client *client;
+
+ /* protect device params updates (e.g state, gain) */
+ struct mutex lock;
+
+ /* device active status */
+ bool als_dev_en;
+ bool pxs_dev_en;
+
+ /* optimize runtime pm ops - enable device only if needed */
+ bool als_ps_need_en;
+ bool pxs_ps_need_en;
+
+ struct regmap *regmap;
+};
+
+static IIO_CONST_ATTR(in_intensity_scale_available, RPR0521_ALS_SCALE_AVAIL);
+static IIO_CONST_ATTR(in_proximity_scale_available, RPR0521_PXS_SCALE_AVAIL);
+
+static struct attribute *rpr0521_attributes[] = {
+ &iio_const_attr_in_intensity_scale_available.dev_attr.attr,
+ &iio_const_attr_in_proximity_scale_available.dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group rpr0521_attribute_group = {
+ .attrs = rpr0521_attributes,
+};
+
+static const struct iio_chan_spec rpr0521_channels[] = {
+ {
+ .type = IIO_INTENSITY,
+ .modified = 1,
+ .address = RPR0521_CHAN_ALS_DATA0,
+ .channel2 = IIO_MOD_LIGHT_BOTH,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ },
+ {
+ .type = IIO_INTENSITY,
+ .modified = 1,
+ .address = RPR0521_CHAN_ALS_DATA1,
+ .channel2 = IIO_MOD_LIGHT_IR,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ },
+ {
+ .type = IIO_PROXIMITY,
+ .address = RPR0521_CHAN_PXS,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ }
+};
+
+static int rpr0521_als_enable(struct rpr0521_data *data, u8 status)
+{
+ int ret;
+
+ ret = regmap_update_bits(data->regmap, RPR0521_REG_MODE_CTRL,
+ RPR0521_MODE_ALS_MASK,
+ status);
+ if (ret < 0)
+ return ret;
+
+ data->als_dev_en = true;
+
+ return 0;
+}
+
+static int rpr0521_pxs_enable(struct rpr0521_data *data, u8 status)
+{
+ int ret;
+
+ ret = regmap_update_bits(data->regmap, RPR0521_REG_MODE_CTRL,
+ RPR0521_MODE_PXS_MASK,
+ status);
+ if (ret < 0)
+ return ret;
+
+ data->pxs_dev_en = true;
+
+ return 0;
+}
+
+/**
+ * rpr0521_set_power_state - handles runtime PM state and sensors enabled status
+ *
+ * @data: rpr0521 device private data
+ * @on: state to be set for devices in @device_mask
+ * @device_mask: bitmask specifying for which device we need to update @on state
+ *
+ * We rely on rpr0521_runtime_resume to enable our @device_mask devices, but
+ * if (for example) PXS was enabled (pxs_dev_en = true) by a previous call to
+ * rpr0521_runtime_resume and we want to enable ALS we MUST set ALS enable
+ * bit of RPR0521_REG_MODE_CTRL here because rpr0521_runtime_resume will not
+ * be called twice.
+ */
+static int rpr0521_set_power_state(struct rpr0521_data *data, bool on,
+ u8 device_mask)
+{
+#ifdef CONFIG_PM
+ int ret;
+ u8 update_mask = 0;
+
+ if (device_mask & RPR0521_MODE_ALS_MASK) {
+ if (on && !data->als_ps_need_en && data->pxs_dev_en)
+ update_mask |= RPR0521_MODE_ALS_MASK;
+ else
+ data->als_ps_need_en = on;
+ }
+
+ if (device_mask & RPR0521_MODE_PXS_MASK) {
+ if (on && !data->pxs_ps_need_en && data->als_dev_en)
+ update_mask |= RPR0521_MODE_PXS_MASK;
+ else
+ data->pxs_ps_need_en = on;
+ }
+
+ if (update_mask) {
+ ret = regmap_update_bits(data->regmap, RPR0521_REG_MODE_CTRL,
+ update_mask, update_mask);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (on) {
+ ret = pm_runtime_get_sync(&data->client->dev);
+ } else {
+ pm_runtime_mark_last_busy(&data->client->dev);
+ ret = pm_runtime_put_autosuspend(&data->client->dev);
+ }
+ if (ret < 0) {
+ dev_err(&data->client->dev,
+ "Failed: rpr0521_set_power_state for %d, ret %d\n",
+ on, ret);
+ if (on)
+ pm_runtime_put_noidle(&data->client->dev);
+
+ return ret;
+ }
+#endif
+ return 0;
+}
+
+static int rpr0521_get_gain(struct rpr0521_data *data, int chan,
+ int *val, int *val2)
+{
+ int ret, reg, idx;
+
+ ret = regmap_read(data->regmap, rpr0521_gain[chan].reg, &reg);
+ if (ret < 0)
+ return ret;
+
+ idx = (rpr0521_gain[chan].mask & reg) >> rpr0521_gain[chan].shift;
+ *val = rpr0521_gain[chan].gain[idx].scale;
+ *val2 = rpr0521_gain[chan].gain[idx].uscale;
+
+ return 0;
+}
+
+static int rpr0521_set_gain(struct rpr0521_data *data, int chan,
+ int val, int val2)
+{
+ int i, idx = -EINVAL;
+
+ /* get gain index */
+ for (i = 0; i < rpr0521_gain[chan].size; i++)
+ if (val == rpr0521_gain[chan].gain[i].scale &&
+ val2 == rpr0521_gain[chan].gain[i].uscale) {
+ idx = i;
+ break;
+ }
+
+ if (idx < 0)
+ return idx;
+
+ return regmap_update_bits(data->regmap, rpr0521_gain[chan].reg,
+ rpr0521_gain[chan].mask,
+ idx << rpr0521_gain[chan].shift);
+}
+
+static int rpr0521_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int *val,
+ int *val2, long mask)
+{
+ struct rpr0521_data *data = iio_priv(indio_dev);
+ int ret;
+ u8 device_mask;
+ __le16 raw_data;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ if (chan->type != IIO_INTENSITY && chan->type != IIO_PROXIMITY)
+ return -EINVAL;
+
+ device_mask = rpr0521_data_reg[chan->address].device_mask;
+
+ mutex_lock(&data->lock);
+ ret = rpr0521_set_power_state(data, true, device_mask);
+ if (ret < 0) {
+ mutex_unlock(&data->lock);
+ return ret;
+ }
+
+ ret = regmap_bulk_read(data->regmap,
+ rpr0521_data_reg[chan->address].address,
+ &raw_data, 2);
+ if (ret < 0) {
+ rpr0521_set_power_state(data, false, device_mask);
+ mutex_unlock(&data->lock);
+ return ret;
+ }
+
+ ret = rpr0521_set_power_state(data, false, device_mask);
+ mutex_unlock(&data->lock);
+ if (ret < 0)
+ return ret;
+
+ *val = le16_to_cpu(raw_data);
+
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ mutex_lock(&data->lock);
+ ret = rpr0521_get_gain(data, chan->address, val, val2);
+ mutex_unlock(&data->lock);
+ if (ret < 0)
+ return ret;
+
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int rpr0521_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan, int val,
+ int val2, long mask)
+{
+ struct rpr0521_data *data = iio_priv(indio_dev);
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_SCALE:
+ mutex_lock(&data->lock);
+ ret = rpr0521_set_gain(data, chan->address, val, val2);
+ mutex_unlock(&data->lock);
+
+ return ret;
+ default:
+ return -EINVAL;
+ }
+}
+
+static const struct iio_info rpr0521_info = {
+ .driver_module = THIS_MODULE,
+ .read_raw = rpr0521_read_raw,
+ .write_raw = rpr0521_write_raw,
+ .attrs = &rpr0521_attribute_group,
+};
+
+static int rpr0521_init(struct rpr0521_data *data)
+{
+ int ret;
+ int id;
+
+ ret = regmap_read(data->regmap, RPR0521_REG_ID, &id);
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Failed to read REG_ID register\n");
+ return ret;
+ }
+
+ if (id != RPR0521_MANUFACT_ID) {
+ dev_err(&data->client->dev, "Wrong id, got %x, expected %x\n",
+ id, RPR0521_MANUFACT_ID);
+ return -ENODEV;
+ }
+
+ /* set default measurement time - 100 ms for both ALS and PS */
+ ret = regmap_update_bits(data->regmap, RPR0521_REG_MODE_CTRL,
+ RPR0521_MODE_MEAS_TIME_MASK,
+ RPR0521_DEFAULT_MEAS_TIME);
+ if (ret) {
+ pr_err("regmap_update_bits returned %d\n", ret);
+ return ret;
+ }
+
+ ret = rpr0521_als_enable(data, RPR0521_MODE_ALS_ENABLE);
+ if (ret < 0)
+ return ret;
+ ret = rpr0521_pxs_enable(data, RPR0521_MODE_PXS_ENABLE);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rpr0521_poweroff(struct rpr0521_data *data)
+{
+ int ret;
+
+ ret = regmap_update_bits(data->regmap, RPR0521_REG_MODE_CTRL,
+ RPR0521_MODE_ALS_MASK |
+ RPR0521_MODE_PXS_MASK,
+ RPR0521_MODE_ALS_DISABLE |
+ RPR0521_MODE_PXS_DISABLE);
+ if (ret < 0)
+ return ret;
+
+ data->als_dev_en = false;
+ data->pxs_dev_en = false;
+
+ return 0;
+}
+
+static bool rpr0521_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case RPR0521_REG_MODE_CTRL:
+ case RPR0521_REG_ALS_CTRL:
+ case RPR0521_REG_PXS_CTRL:
+ return false;
+ default:
+ return true;
+ }
+}
+
+static const struct regmap_config rpr0521_regmap_config = {
+ .name = RPR0521_REGMAP_NAME,
+
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = RPR0521_REG_ID,
+ .cache_type = REGCACHE_RBTREE,
+ .volatile_reg = rpr0521_is_volatile_reg,
+};
+
+static int rpr0521_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct rpr0521_data *data;
+ struct iio_dev *indio_dev;
+ struct regmap *regmap;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ regmap = devm_regmap_init_i2c(client, &rpr0521_regmap_config);
+ if (IS_ERR(regmap)) {
+ dev_err(&client->dev, "regmap_init failed!\n");
+ return PTR_ERR(regmap);
+ }
+
+ data = iio_priv(indio_dev);
+ i2c_set_clientdata(client, indio_dev);
+ data->client = client;
+ data->regmap = regmap;
+
+ mutex_init(&data->lock);
+
+ indio_dev->dev.parent = &client->dev;
+ indio_dev->info = &rpr0521_info;
+ indio_dev->name = RPR0521_DRV_NAME;
+ indio_dev->channels = rpr0521_channels;
+ indio_dev->num_channels = ARRAY_SIZE(rpr0521_channels);
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ ret = rpr0521_init(data);
+ if (ret < 0) {
+ dev_err(&client->dev, "rpr0521 chip init failed\n");
+ return ret;
+ }
+ ret = iio_device_register(indio_dev);
+ if (ret < 0)
+ return ret;
+
+ ret = pm_runtime_set_active(&client->dev);
+ if (ret < 0)
+ goto err_iio_unregister;
+
+ pm_runtime_enable(&client->dev);
+ pm_runtime_set_autosuspend_delay(&client->dev, RPR0521_SLEEP_DELAY_MS);
+ pm_runtime_use_autosuspend(&client->dev);
+
+ return 0;
+
+err_iio_unregister:
+ iio_device_unregister(indio_dev);
+ return ret;
+}
+
+static int rpr0521_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+ pm_runtime_put_noidle(&client->dev);
+
+ iio_device_unregister(indio_dev);
+ rpr0521_poweroff(iio_priv(indio_dev));
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int rpr0521_runtime_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct rpr0521_data *data = iio_priv(indio_dev);
+ int ret;
+
+ /* disable channels and sets {als,pxs}_dev_en to false */
+ mutex_lock(&data->lock);
+ ret = rpr0521_poweroff(data);
+ mutex_unlock(&data->lock);
+
+ return ret;
+}
+
+static int rpr0521_runtime_resume(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct rpr0521_data *data = iio_priv(indio_dev);
+ int ret;
+
+ if (data->als_ps_need_en) {
+ ret = rpr0521_als_enable(data, RPR0521_MODE_ALS_ENABLE);
+ if (ret < 0)
+ return ret;
+ data->als_ps_need_en = false;
+ }
+
+ if (data->pxs_ps_need_en) {
+ ret = rpr0521_pxs_enable(data, RPR0521_MODE_PXS_ENABLE);
+ if (ret < 0)
+ return ret;
+ data->pxs_ps_need_en = false;
+ }
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops rpr0521_pm_ops = {
+ SET_RUNTIME_PM_OPS(rpr0521_runtime_suspend,
+ rpr0521_runtime_resume, NULL)
+};
+
+static const struct acpi_device_id rpr0521_acpi_match[] = {
+ {"RPR0521", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, rpr0521_acpi_match);
+
+static const struct i2c_device_id rpr0521_id[] = {
+ {"rpr0521", 0},
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, rpr0521_id);
+
+static struct i2c_driver rpr0521_driver = {
+ .driver = {
+ .name = RPR0521_DRV_NAME,
+ .pm = &rpr0521_pm_ops,
+ .acpi_match_table = ACPI_PTR(rpr0521_acpi_match),
+ },
+ .probe = rpr0521_probe,
+ .remove = rpr0521_remove,
+ .id_table = rpr0521_id,
+};
+
+module_i2c_driver(rpr0521_driver);
+
+MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
+MODULE_DESCRIPTION("RPR0521 ROHM Ambient Light and Proximity Sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 11a027adc..993eb2011 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -469,16 +469,12 @@ static int stk3310_gpio_probe(struct i2c_client *client)
dev = &client->dev;
/* gpio interrupt pin */
- gpio = devm_gpiod_get_index(dev, STK3310_GPIO, 0);
+ gpio = devm_gpiod_get_index(dev, STK3310_GPIO, 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "acpi gpio get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
@@ -676,6 +672,7 @@ static const struct i2c_device_id stk3310_i2c_id[] = {
{"STK3311", 0},
{}
};
+MODULE_DEVICE_TABLE(i2c, stk3310_i2c_id);
static const struct acpi_device_id stk3310_acpi_id[] = {
{"STK3310", 0},
diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c
index f8b1df018..f90f8c591 100644
--- a/drivers/iio/light/tcs3414.c
+++ b/drivers/iio/light/tcs3414.c
@@ -392,7 +392,6 @@ static struct i2c_driver tcs3414_driver = {
.driver = {
.name = TCS3414_DRV_NAME,
.pm = &tcs3414_pm_ops,
- .owner = THIS_MODULE,
},
.probe = tcs3414_probe,
.remove = tcs3414_remove,
diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index 752569985..1b530bf04 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -366,7 +366,6 @@ static struct i2c_driver tcs3472_driver = {
.driver = {
.name = TCS3472_DRV_NAME,
.pm = &tcs3472_pm_ops,
- .owner = THIS_MODULE,
},
.probe = tcs3472_probe,
.remove = tcs3472_remove,
diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c
index 63c26e2d5..26979183d 100644
--- a/drivers/iio/light/tsl4531.c
+++ b/drivers/iio/light/tsl4531.c
@@ -247,7 +247,6 @@ static struct i2c_driver tsl4531_driver = {
.driver = {
.name = TSL4531_DRV_NAME,
.pm = TSL4531_PM_OPS,
- .owner = THIS_MODULE,
},
.probe = tsl4531_probe,
.remove = tsl4531_remove,
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index d948c4778..c9d85bbc9 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -185,7 +185,6 @@ static int vcnl4000_probe(struct i2c_client *client,
static struct i2c_driver vcnl4000_driver = {
.driver = {
.name = VCNL4000_DRV_NAME,
- .owner = THIS_MODULE,
},
.probe = vcnl4000_probe,
.id_table = vcnl4000_id,
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index 1347a1f2e..d8e614ca0 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -85,6 +85,7 @@
#define BMC150_MAGN_REG_HIGH_THRESH 0x50
#define BMC150_MAGN_REG_REP_XY 0x51
#define BMC150_MAGN_REG_REP_Z 0x52
+#define BMC150_MAGN_REG_REP_DATAMASK GENMASK(7, 0)
#define BMC150_MAGN_REG_TRIM_START 0x5D
#define BMC150_MAGN_REG_TRIM_END 0x71
@@ -559,7 +560,7 @@ static int bmc150_magn_write_raw(struct iio_dev *indio_dev,
}
ret = regmap_update_bits(data->regmap,
BMC150_MAGN_REG_REP_XY,
- 0xFF,
+ BMC150_MAGN_REG_REP_DATAMASK,
BMC150_MAGN_REPXY_TO_REGVAL
(val));
mutex_unlock(&data->mutex);
@@ -575,7 +576,7 @@ static int bmc150_magn_write_raw(struct iio_dev *indio_dev,
}
ret = regmap_update_bits(data->regmap,
BMC150_MAGN_REG_REP_Z,
- 0xFF,
+ BMC150_MAGN_REG_REP_DATAMASK,
BMC150_MAGN_REPZ_TO_REGVAL
(val));
mutex_unlock(&data->mutex);
@@ -588,17 +589,6 @@ static int bmc150_magn_write_raw(struct iio_dev *indio_dev,
}
}
-static int bmc150_magn_validate_trigger(struct iio_dev *indio_dev,
- struct iio_trigger *trig)
-{
- struct bmc150_magn_data *data = iio_priv(indio_dev);
-
- if (data->dready_trig != trig)
- return -EINVAL;
-
- return 0;
-}
-
static ssize_t bmc150_magn_show_samp_freq_avail(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -659,11 +649,12 @@ static const struct iio_info bmc150_magn_info = {
.attrs = &bmc150_magn_attrs_group,
.read_raw = bmc150_magn_read_raw,
.write_raw = bmc150_magn_write_raw,
- .validate_trigger = bmc150_magn_validate_trigger,
.driver_module = THIS_MODULE,
};
-static const unsigned long bmc150_magn_scan_masks[] = {0x07, 0};
+static const unsigned long bmc150_magn_scan_masks[] = {
+ BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z),
+ 0};
static irqreturn_t bmc150_magn_trigger_handler(int irq, void *p)
{
@@ -674,7 +665,6 @@ static irqreturn_t bmc150_magn_trigger_handler(int irq, void *p)
mutex_lock(&data->mutex);
ret = bmc150_magn_read_xyz(data, data->buffer);
- mutex_unlock(&data->mutex);
if (ret < 0)
goto err;
@@ -682,7 +672,8 @@ static irqreturn_t bmc150_magn_trigger_handler(int irq, void *p)
pf->timestamp);
err:
- iio_trigger_notify_done(data->dready_trig);
+ mutex_unlock(&data->mutex);
+ iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
}
@@ -793,29 +784,23 @@ static int bmc150_magn_data_rdy_trigger_set_state(struct iio_trigger *trig,
if (state == data->dready_trigger_on)
goto err_unlock;
- ret = bmc150_magn_set_power_state(data, state);
- if (ret < 0)
- goto err_unlock;
-
ret = regmap_update_bits(data->regmap, BMC150_MAGN_REG_INT_DRDY,
BMC150_MAGN_MASK_DRDY_EN,
state << BMC150_MAGN_SHIFT_DRDY_EN);
if (ret < 0)
- goto err_poweroff;
+ goto err_unlock;
data->dready_trigger_on = state;
if (state) {
ret = bmc150_magn_reset_intr(data);
if (ret < 0)
- goto err_poweroff;
+ goto err_unlock;
}
mutex_unlock(&data->mutex);
return 0;
-err_poweroff:
- bmc150_magn_set_power_state(data, false);
err_unlock:
mutex_unlock(&data->mutex);
return ret;
@@ -827,6 +812,27 @@ static const struct iio_trigger_ops bmc150_magn_trigger_ops = {
.owner = THIS_MODULE,
};
+static int bmc150_magn_buffer_preenable(struct iio_dev *indio_dev)
+{
+ struct bmc150_magn_data *data = iio_priv(indio_dev);
+
+ return bmc150_magn_set_power_state(data, true);
+}
+
+static int bmc150_magn_buffer_postdisable(struct iio_dev *indio_dev)
+{
+ struct bmc150_magn_data *data = iio_priv(indio_dev);
+
+ return bmc150_magn_set_power_state(data, false);
+}
+
+static const struct iio_buffer_setup_ops bmc150_magn_buffer_setup_ops = {
+ .preenable = bmc150_magn_buffer_preenable,
+ .postenable = iio_triggered_buffer_postenable,
+ .predisable = iio_triggered_buffer_predisable,
+ .postdisable = bmc150_magn_buffer_postdisable,
+};
+
static int bmc150_magn_gpio_probe(struct i2c_client *client)
{
struct device *dev;
@@ -839,16 +845,12 @@ static int bmc150_magn_gpio_probe(struct i2c_client *client)
dev = &client->dev;
/* data ready GPIO interrupt pin */
- gpio = devm_gpiod_get_index(dev, BMC150_MAGN_GPIO_INT, 0);
+ gpio = devm_gpiod_get_index(dev, BMC150_MAGN_GPIO_INT, 0, GPIOD_IN);
if (IS_ERR(gpio)) {
dev_err(dev, "ACPI GPIO get index failed\n");
return PTR_ERR(gpio);
}
- ret = gpiod_direction_input(gpio);
- if (ret)
- return ret;
-
ret = gpiod_to_irq(gpio);
dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
@@ -932,16 +934,6 @@ static int bmc150_magn_probe(struct i2c_client *client,
goto err_poweroff;
}
- ret = iio_triggered_buffer_setup(indio_dev,
- &iio_pollfunc_store_time,
- bmc150_magn_trigger_handler,
- NULL);
- if (ret < 0) {
- dev_err(&client->dev,
- "iio triggered buffer setup failed\n");
- goto err_trigger_unregister;
- }
-
ret = request_threaded_irq(client->irq,
iio_trigger_generic_data_rdy_poll,
NULL,
@@ -951,14 +943,24 @@ static int bmc150_magn_probe(struct i2c_client *client,
if (ret < 0) {
dev_err(&client->dev, "request irq %d failed\n",
client->irq);
- goto err_buffer_cleanup;
+ goto err_trigger_unregister;
}
}
+ ret = iio_triggered_buffer_setup(indio_dev,
+ iio_pollfunc_store_time,
+ bmc150_magn_trigger_handler,
+ &bmc150_magn_buffer_setup_ops);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "iio triggered buffer setup failed\n");
+ goto err_free_irq;
+ }
+
ret = iio_device_register(indio_dev);
if (ret < 0) {
dev_err(&client->dev, "unable to register iio device\n");
- goto err_free_irq;
+ goto err_buffer_cleanup;
}
ret = pm_runtime_set_active(&client->dev);
@@ -976,12 +978,11 @@ static int bmc150_magn_probe(struct i2c_client *client,
err_iio_unregister:
iio_device_unregister(indio_dev);
+err_buffer_cleanup:
+ iio_triggered_buffer_cleanup(indio_dev);
err_free_irq:
if (client->irq > 0)
free_irq(client->irq, data->dready_trig);
-err_buffer_cleanup:
- if (data->dready_trig)
- iio_triggered_buffer_cleanup(indio_dev);
err_trigger_unregister:
if (data->dready_trig)
iio_trigger_unregister(data->dready_trig);
@@ -1000,14 +1001,13 @@ static int bmc150_magn_remove(struct i2c_client *client)
pm_runtime_put_noidle(&client->dev);
iio_device_unregister(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
if (client->irq > 0)
free_irq(data->client->irq, data->dready_trig);
- if (data->dready_trig) {
- iio_triggered_buffer_cleanup(indio_dev);
+ if (data->dready_trig)
iio_trigger_unregister(data->dready_trig);
- }
mutex_lock(&data->mutex);
bmc150_magn_set_power_mode(data, BMC150_MAGN_POWER_MODE_SUSPEND, true);
@@ -1034,6 +1034,9 @@ static int bmc150_magn_runtime_suspend(struct device *dev)
return 0;
}
+/*
+ * Should be called with data->mutex held.
+ */
static int bmc150_magn_runtime_resume(struct device *dev)
{
struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
@@ -1082,12 +1085,14 @@ static const struct dev_pm_ops bmc150_magn_pm_ops = {
static const struct acpi_device_id bmc150_magn_acpi_match[] = {
{"BMC150B", 0},
+ {"BMC156B", 0},
{},
};
MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
static const struct i2c_device_id bmc150_magn_id[] = {
{"bmc150_magn", 0},
+ {"bmc156_magn", 0},
{},
};
MODULE_DEVICE_TABLE(i2c, bmc150_magn_id);
diff --git a/drivers/iio/magnetometer/mmc35240.c b/drivers/iio/magnetometer/mmc35240.c
index 706ebfd62..176e14a61 100644
--- a/drivers/iio/magnetometer/mmc35240.c
+++ b/drivers/iio/magnetometer/mmc35240.c
@@ -316,31 +316,31 @@ static int mmc35240_read_measurement(struct mmc35240_data *data, __le16 buf[3])
static int mmc35240_raw_to_mgauss(struct mmc35240_data *data, int index,
__le16 buf[], int *val)
{
- int raw_x, raw_y, raw_z;
- int sens_x, sens_y, sens_z;
+ int raw[3];
+ int sens[3];
int nfo;
- raw_x = le16_to_cpu(buf[AXIS_X]);
- raw_y = le16_to_cpu(buf[AXIS_Y]);
- raw_z = le16_to_cpu(buf[AXIS_Z]);
+ raw[AXIS_X] = le16_to_cpu(buf[AXIS_X]);
+ raw[AXIS_Y] = le16_to_cpu(buf[AXIS_Y]);
+ raw[AXIS_Z] = le16_to_cpu(buf[AXIS_Z]);
- sens_x = mmc35240_props_table[data->res].sens[AXIS_X];
- sens_y = mmc35240_props_table[data->res].sens[AXIS_Y];
- sens_z = mmc35240_props_table[data->res].sens[AXIS_Z];
+ sens[AXIS_X] = mmc35240_props_table[data->res].sens[AXIS_X];
+ sens[AXIS_Y] = mmc35240_props_table[data->res].sens[AXIS_Y];
+ sens[AXIS_Z] = mmc35240_props_table[data->res].sens[AXIS_Z];
nfo = mmc35240_props_table[data->res].nfo;
switch (index) {
case AXIS_X:
- *val = (raw_x - nfo) * 1000 / sens_x;
+ *val = (raw[AXIS_X] - nfo) * 1000 / sens[AXIS_X];
break;
case AXIS_Y:
- *val = (raw_y - nfo) * 1000 / sens_y -
- (raw_z - nfo) * 1000 / sens_z;
+ *val = (raw[AXIS_Y] - nfo) * 1000 / sens[AXIS_Y] -
+ (raw[AXIS_Z] - nfo) * 1000 / sens[AXIS_Z];
break;
case AXIS_Z:
- *val = (raw_y - nfo) * 1000 / sens_y +
- (raw_z - nfo) * 1000 / sens_z;
+ *val = (raw[AXIS_Y] - nfo) * 1000 / sens[AXIS_Y] +
+ (raw[AXIS_Z] - nfo) * 1000 / sens[AXIS_Z];
break;
default:
return -EINVAL;
@@ -559,6 +559,12 @@ static const struct dev_pm_ops mmc35240_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(mmc35240_suspend, mmc35240_resume)
};
+static const struct of_device_id mmc35240_of_match[] = {
+ { .compatible = "memsic,mmc35240", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, mmc35240_of_match);
+
static const struct acpi_device_id mmc35240_acpi_match[] = {
{"MMC35240", 0},
{ },
@@ -574,6 +580,7 @@ MODULE_DEVICE_TABLE(i2c, mmc35240_id);
static struct i2c_driver mmc35240_driver = {
.driver = {
.name = MMC35240_DRV_NAME,
+ .of_match_table = mmc35240_of_match,
.pm = &mmc35240_pm_ops,
.acpi_match_table = ACPI_PTR(mmc35240_acpi_match),
},
diff --git a/drivers/iio/magnetometer/st_magn.h b/drivers/iio/magnetometer/st_magn.h
index 287691ca5..06a4d9c35 100644
--- a/drivers/iio/magnetometer/st_magn.h
+++ b/drivers/iio/magnetometer/st_magn.h
@@ -18,6 +18,7 @@
#define LSM303DLHC_MAGN_DEV_NAME "lsm303dlhc_magn"
#define LSM303DLM_MAGN_DEV_NAME "lsm303dlm_magn"
#define LIS3MDL_MAGN_DEV_NAME "lis3mdl"
+#define LSM303AGR_MAGN_DEV_NAME "lsm303agr_magn"
int st_magn_common_probe(struct iio_dev *indio_dev);
void st_magn_common_remove(struct iio_dev *indio_dev);
@@ -25,6 +26,8 @@ void st_magn_common_remove(struct iio_dev *indio_dev);
#ifdef CONFIG_IIO_BUFFER
int st_magn_allocate_ring(struct iio_dev *indio_dev);
void st_magn_deallocate_ring(struct iio_dev *indio_dev);
+int st_magn_trig_set_state(struct iio_trigger *trig, bool state);
+#define ST_MAGN_TRIGGER_SET_STATE (&st_magn_trig_set_state)
#else /* CONFIG_IIO_BUFFER */
static inline int st_magn_probe_trigger(struct iio_dev *indio_dev, int irq)
{
diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c
index bf427dc0d..ecd3bd0a9 100644
--- a/drivers/iio/magnetometer/st_magn_buffer.c
+++ b/drivers/iio/magnetometer/st_magn_buffer.c
@@ -23,6 +23,13 @@
#include <linux/iio/common/st_sensors.h>
#include "st_magn.h"
+int st_magn_trig_set_state(struct iio_trigger *trig, bool state)
+{
+ struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+
+ return st_sensors_set_dataready_irq(indio_dev, state);
+}
+
static int st_magn_buffer_preenable(struct iio_dev *indio_dev)
{
return st_sensors_set_enable(indio_dev, true);
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index b4bcfb790..f8dc4b85d 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -43,6 +43,7 @@
#define ST_MAGN_FS_AVL_8000MG 8000
#define ST_MAGN_FS_AVL_8100MG 8100
#define ST_MAGN_FS_AVL_12000MG 12000
+#define ST_MAGN_FS_AVL_15000MG 15000
#define ST_MAGN_FS_AVL_16000MG 16000
/* CUSTOM VALUES FOR SENSOR 0 */
@@ -157,6 +158,29 @@
#define ST_MAGN_2_OUT_Y_L_ADDR 0x2a
#define ST_MAGN_2_OUT_Z_L_ADDR 0x2c
+/* CUSTOM VALUES FOR SENSOR 3 */
+#define ST_MAGN_3_WAI_ADDR 0x4f
+#define ST_MAGN_3_WAI_EXP 0x40
+#define ST_MAGN_3_ODR_ADDR 0x60
+#define ST_MAGN_3_ODR_MASK 0x0c
+#define ST_MAGN_3_ODR_AVL_10HZ_VAL 0x00
+#define ST_MAGN_3_ODR_AVL_20HZ_VAL 0x01
+#define ST_MAGN_3_ODR_AVL_50HZ_VAL 0x02
+#define ST_MAGN_3_ODR_AVL_100HZ_VAL 0x03
+#define ST_MAGN_3_PW_ADDR 0x60
+#define ST_MAGN_3_PW_MASK 0x03
+#define ST_MAGN_3_PW_ON 0x00
+#define ST_MAGN_3_PW_OFF 0x03
+#define ST_MAGN_3_BDU_ADDR 0x62
+#define ST_MAGN_3_BDU_MASK 0x10
+#define ST_MAGN_3_DRDY_IRQ_ADDR 0x62
+#define ST_MAGN_3_DRDY_INT_MASK 0x01
+#define ST_MAGN_3_FS_AVL_15000_GAIN 1500
+#define ST_MAGN_3_MULTIREAD_BIT false
+#define ST_MAGN_3_OUT_X_L_ADDR 0x68
+#define ST_MAGN_3_OUT_Y_L_ADDR 0x6a
+#define ST_MAGN_3_OUT_Z_L_ADDR 0x6c
+
static const struct iio_chan_spec st_magn_16bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
@@ -189,9 +213,26 @@ static const struct iio_chan_spec st_magn_2_16bit_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(3)
};
+static const struct iio_chan_spec st_magn_3_16bit_channels[] = {
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
+ ST_MAGN_3_OUT_X_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
+ ST_MAGN_3_OUT_Y_L_ADDR),
+ ST_SENSORS_LSM_CHANNELS(IIO_MAGN,
+ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
+ ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
+ ST_MAGN_3_OUT_Z_L_ADDR),
+ IIO_CHAN_SOFT_TIMESTAMP(3)
+};
+
static const struct st_sensor_settings st_magn_sensors_settings[] = {
{
.wai = 0, /* This sensor has no valid WhoAmI report 0 */
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LSM303DLH_MAGN_DEV_NAME,
},
@@ -268,6 +309,7 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = {
},
{
.wai = ST_MAGN_1_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LSM303DLHC_MAGN_DEV_NAME,
[1] = LSM303DLM_MAGN_DEV_NAME,
@@ -346,6 +388,7 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = {
},
{
.wai = ST_MAGN_2_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS3MDL_MAGN_DEV_NAME,
},
@@ -399,6 +442,48 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = {
.multi_read_bit = ST_MAGN_2_MULTIREAD_BIT,
.bootime = 2,
},
+ {
+ .wai = ST_MAGN_3_WAI_EXP,
+ .wai_addr = ST_MAGN_3_WAI_ADDR,
+ .sensors_supported = {
+ [0] = LSM303AGR_MAGN_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_magn_3_16bit_channels,
+ .odr = {
+ .addr = ST_MAGN_3_ODR_ADDR,
+ .mask = ST_MAGN_3_ODR_MASK,
+ .odr_avl = {
+ { 10, ST_MAGN_3_ODR_AVL_10HZ_VAL, },
+ { 20, ST_MAGN_3_ODR_AVL_20HZ_VAL, },
+ { 50, ST_MAGN_3_ODR_AVL_50HZ_VAL, },
+ { 100, ST_MAGN_3_ODR_AVL_100HZ_VAL, },
+ },
+ },
+ .pw = {
+ .addr = ST_MAGN_3_PW_ADDR,
+ .mask = ST_MAGN_3_PW_MASK,
+ .value_on = ST_MAGN_3_PW_ON,
+ .value_off = ST_MAGN_3_PW_OFF,
+ },
+ .fs = {
+ .fs_avl = {
+ [0] = {
+ .num = ST_MAGN_FS_AVL_15000MG,
+ .gain = ST_MAGN_3_FS_AVL_15000_GAIN,
+ },
+ },
+ },
+ .bdu = {
+ .addr = ST_MAGN_3_BDU_ADDR,
+ .mask = ST_MAGN_3_BDU_MASK,
+ },
+ .drdy_irq = {
+ .addr = ST_MAGN_3_DRDY_IRQ_ADDR,
+ .mask_int1 = ST_MAGN_3_DRDY_INT_MASK,
+ },
+ .multi_read_bit = ST_MAGN_3_MULTIREAD_BIT,
+ .bootime = 2,
+ },
};
static int st_magn_read_raw(struct iio_dev *indio_dev,
@@ -477,6 +562,16 @@ static const struct iio_info magn_info = {
.write_raw = &st_magn_write_raw,
};
+#ifdef CONFIG_IIO_TRIGGER
+static const struct iio_trigger_ops st_magn_trigger_ops = {
+ .owner = THIS_MODULE,
+ .set_trigger_state = ST_MAGN_TRIGGER_SET_STATE,
+};
+#define ST_MAGN_TRIGGER_OPS (&st_magn_trigger_ops)
+#else
+#define ST_MAGN_TRIGGER_OPS NULL
+#endif
+
int st_magn_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *mdata = iio_priv(indio_dev);
@@ -513,7 +608,8 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
return err;
if (irq > 0) {
- err = st_sensors_allocate_trigger(indio_dev, NULL);
+ err = st_sensors_allocate_trigger(indio_dev,
+ ST_MAGN_TRIGGER_OPS);
if (err < 0)
goto st_magn_probe_trigger_error;
}
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index 5311d8aea..8aa37af30 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -36,6 +36,10 @@ static const struct of_device_id st_magn_of_match[] = {
.compatible = "st,lis3mdl-magn",
.data = LIS3MDL_MAGN_DEV_NAME,
},
+ {
+ .compatible = "st,lsm303agr-magn",
+ .data = LSM303AGR_MAGN_DEV_NAME,
+ },
{},
};
MODULE_DEVICE_TABLE(of, st_magn_of_match);
@@ -79,13 +83,13 @@ static const struct i2c_device_id st_magn_id_table[] = {
{ LSM303DLHC_MAGN_DEV_NAME },
{ LSM303DLM_MAGN_DEV_NAME },
{ LIS3MDL_MAGN_DEV_NAME },
+ { LSM303AGR_MAGN_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, st_magn_id_table);
static struct i2c_driver st_magn_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = "st-magn-i2c",
.of_match_table = of_match_ptr(st_magn_of_match),
},
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index 7adacf160..0abca2c6a 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -51,6 +51,7 @@ static const struct spi_device_id st_magn_id_table[] = {
{ LSM303DLHC_MAGN_DEV_NAME },
{ LSM303DLM_MAGN_DEV_NAME },
{ LIS3MDL_MAGN_DEV_NAME },
+ { LSM303AGR_MAGN_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(spi, st_magn_id_table);
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
index fa6295041..4745179ff 100644
--- a/drivers/iio/pressure/Kconfig
+++ b/drivers/iio/pressure/Kconfig
@@ -53,10 +53,10 @@ config MPL3115
will be called mpl3115.
config MS5611
- tristate "Measurement Specialities MS5611 pressure sensor driver"
+ tristate "Measurement Specialties MS5611 pressure sensor driver"
help
- Say Y here to build support for the Measurement Specialities
- MS5611 pressure and temperature sensor.
+ Say Y here to build support for the Measurement Specialties
+ MS5611, MS5607 pressure and temperature sensors.
To compile this driver as a module, choose M here: the module will
be called ms5611_core.
diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h
index 099c6cdea..23b93c797 100644
--- a/drivers/iio/pressure/ms5611.h
+++ b/drivers/iio/pressure/ms5611.h
@@ -27,6 +27,18 @@
#define MS5611_PROM_WORDS_NB 8
+enum {
+ MS5611,
+ MS5607,
+};
+
+struct ms5611_chip_info {
+ u16 prom[MS5611_PROM_WORDS_NB];
+
+ int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info,
+ s32 *temp, s32 *pressure);
+};
+
struct ms5611_state {
void *client;
struct mutex lock;
@@ -36,9 +48,9 @@ struct ms5611_state {
int (*read_adc_temp_and_pressure)(struct device *dev,
s32 *temp, s32 *pressure);
- u16 prom[MS5611_PROM_WORDS_NB];
+ struct ms5611_chip_info *chip_info;
};
-int ms5611_probe(struct iio_dev *indio_dev, struct device *dev);
+int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, int type);
#endif /* _MS5611_H */
diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c
index e42c8531d..2f3d9b4ac 100644
--- a/drivers/iio/pressure/ms5611_core.c
+++ b/drivers/iio/pressure/ms5611_core.c
@@ -9,6 +9,7 @@
*
* Data sheet:
* http://www.meas-spec.com/downloads/MS5611-01BA03.pdf
+ * http://www.meas-spec.com/downloads/MS5607-02BA03.pdf
*
*/
@@ -50,7 +51,8 @@ static int ms5611_read_prom(struct iio_dev *indio_dev)
struct ms5611_state *st = iio_priv(indio_dev);
for (i = 0; i < MS5611_PROM_WORDS_NB; i++) {
- ret = st->read_prom_word(&indio_dev->dev, i, &st->prom[i]);
+ ret = st->read_prom_word(&indio_dev->dev,
+ i, &st->chip_info->prom[i]);
if (ret < 0) {
dev_err(&indio_dev->dev,
"failed to read prom at %d\n", i);
@@ -58,7 +60,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev)
}
}
- if (!ms5611_prom_is_valid(st->prom, MS5611_PROM_WORDS_NB)) {
+ if (!ms5611_prom_is_valid(st->chip_info->prom, MS5611_PROM_WORDS_NB)) {
dev_err(&indio_dev->dev, "PROM integrity check failed\n");
return -ENODEV;
}
@@ -70,22 +72,30 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev,
s32 *temp, s32 *pressure)
{
int ret;
- s32 t, p;
- s64 off, sens, dt;
struct ms5611_state *st = iio_priv(indio_dev);
- ret = st->read_adc_temp_and_pressure(&indio_dev->dev, &t, &p);
+ ret = st->read_adc_temp_and_pressure(&indio_dev->dev, temp, pressure);
if (ret < 0) {
dev_err(&indio_dev->dev,
"failed to read temperature and pressure\n");
return ret;
}
- dt = t - (st->prom[5] << 8);
- off = ((s64)st->prom[2] << 16) + ((st->prom[4] * dt) >> 7);
- sens = ((s64)st->prom[1] << 15) + ((st->prom[3] * dt) >> 8);
+ return st->chip_info->temp_and_pressure_compensate(st->chip_info,
+ temp, pressure);
+}
+
+static int ms5611_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info,
+ s32 *temp, s32 *pressure)
+{
+ s32 t = *temp, p = *pressure;
+ s64 off, sens, dt;
- t = 2000 + ((st->prom[6] * dt) >> 23);
+ dt = t - (chip_info->prom[5] << 8);
+ off = ((s64)chip_info->prom[2] << 16) + ((chip_info->prom[4] * dt) >> 7);
+ sens = ((s64)chip_info->prom[1] << 15) + ((chip_info->prom[3] * dt) >> 8);
+
+ t = 2000 + ((chip_info->prom[6] * dt) >> 23);
if (t < 2000) {
s64 off2, sens2, t2;
@@ -111,6 +121,42 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev,
return 0;
}
+static int ms5607_temp_and_pressure_compensate(struct ms5611_chip_info *chip_info,
+ s32 *temp, s32 *pressure)
+{
+ s32 t = *temp, p = *pressure;
+ s64 off, sens, dt;
+
+ dt = t - (chip_info->prom[5] << 8);
+ off = ((s64)chip_info->prom[2] << 17) + ((chip_info->prom[4] * dt) >> 6);
+ sens = ((s64)chip_info->prom[1] << 16) + ((chip_info->prom[3] * dt) >> 7);
+
+ t = 2000 + ((chip_info->prom[6] * dt) >> 23);
+ if (t < 2000) {
+ s64 off2, sens2, t2;
+
+ t2 = (dt * dt) >> 31;
+ off2 = (61 * (t - 2000) * (t - 2000)) >> 4;
+ sens2 = off2 << 1;
+
+ if (t < -1500) {
+ s64 tmp = (t + 1500) * (t + 1500);
+
+ off2 += 15 * tmp;
+ sens2 += (8 * tmp);
+ }
+
+ t -= t2;
+ off -= off2;
+ sens -= sens2;
+ }
+
+ *temp = t;
+ *pressure = (((p * sens) >> 21) - off) >> 15;
+
+ return 0;
+}
+
static int ms5611_reset(struct iio_dev *indio_dev)
{
int ret;
@@ -160,16 +206,23 @@ static int ms5611_read_raw(struct iio_dev *indio_dev,
return -EINVAL;
}
+static struct ms5611_chip_info chip_info_tbl[] = {
+ [MS5611] = {
+ .temp_and_pressure_compensate = ms5611_temp_and_pressure_compensate,
+ },
+ [MS5607] = {
+ .temp_and_pressure_compensate = ms5607_temp_and_pressure_compensate,
+ }
+};
+
static const struct iio_chan_spec ms5611_channels[] = {
{
.type = IIO_PRESSURE,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
- BIT(IIO_CHAN_INFO_SCALE)
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
},
{
.type = IIO_TEMP,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
- BIT(IIO_CHAN_INFO_SCALE)
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
}
};
@@ -189,12 +242,13 @@ static int ms5611_init(struct iio_dev *indio_dev)
return ms5611_read_prom(indio_dev);
}
-int ms5611_probe(struct iio_dev *indio_dev, struct device *dev)
+int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, int type)
{
int ret;
struct ms5611_state *st = iio_priv(indio_dev);
mutex_init(&st->lock);
+ st->chip_info = &chip_info_tbl[type];
indio_dev->dev.parent = dev;
indio_dev->name = dev->driver->name;
indio_dev->info = &ms5611_info;
diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c
index 748fd9aca..245797d1e 100644
--- a/drivers/iio/pressure/ms5611_i2c.c
+++ b/drivers/iio/pressure/ms5611_i2c.c
@@ -104,11 +104,12 @@ static int ms5611_i2c_probe(struct i2c_client *client,
st->read_adc_temp_and_pressure = ms5611_i2c_read_adc_temp_and_pressure;
st->client = client;
- return ms5611_probe(indio_dev, &client->dev);
+ return ms5611_probe(indio_dev, &client->dev, id->driver_data);
}
static const struct i2c_device_id ms5611_id[] = {
- { "ms5611", 0 },
+ { "ms5611", MS5611 },
+ { "ms5607", MS5607 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ms5611_id);
@@ -116,7 +117,6 @@ MODULE_DEVICE_TABLE(i2c, ms5611_id);
static struct i2c_driver ms5611_driver = {
.driver = {
.name = "ms5611",
- .owner = THIS_MODULE,
},
.id_table = ms5611_id,
.probe = ms5611_i2c_probe,
diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c
index 976726fd4..08ee6e88c 100644
--- a/drivers/iio/pressure/ms5611_spi.c
+++ b/drivers/iio/pressure/ms5611_spi.c
@@ -103,11 +103,13 @@ static int ms5611_spi_probe(struct spi_device *spi)
st->read_adc_temp_and_pressure = ms5611_spi_read_adc_temp_and_pressure;
st->client = spi;
- return ms5611_probe(indio_dev, &spi->dev);
+ return ms5611_probe(indio_dev, &spi->dev,
+ spi_get_device_id(spi)->driver_data);
}
static const struct spi_device_id ms5611_id[] = {
- { "ms5611", 0 },
+ { "ms5611", MS5611 },
+ { "ms5607", MS5607 },
{ }
};
MODULE_DEVICE_TABLE(spi, ms5611_id);
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index e881fa629..eb41d2b92 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -178,6 +178,7 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = {
static const struct st_sensor_settings st_press_sensors_settings[] = {
{
.wai = ST_PRESS_LPS331AP_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LPS331AP_PRESS_DEV_NAME,
},
@@ -225,6 +226,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
},
{
.wai = ST_PRESS_LPS001WP_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LPS001WP_PRESS_DEV_NAME,
},
@@ -260,6 +262,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
},
{
.wai = ST_PRESS_LPS25H_WAI_EXP,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LPS25H_PRESS_DEV_NAME,
},
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 137788bba..8fcf9766e 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -79,7 +79,6 @@ MODULE_DEVICE_TABLE(i2c, st_press_id_table);
static struct i2c_driver st_press_driver = {
.driver = {
- .owner = THIS_MODULE,
.name = "st-press-i2c",
.of_match_table = of_match_ptr(st_press_of_match),
},
diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index 7a2b639ea..5d033a5af 100644
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -65,6 +65,13 @@
#define MLX90614_AUTOSLEEP_DELAY 5000 /* default autosleep delay */
+/* Magic constants */
+#define MLX90614_CONST_OFFSET_DEC -13657 /* decimal part of the Kelvin offset */
+#define MLX90614_CONST_OFFSET_REM 500000 /* remainder of offset (273.15*50) */
+#define MLX90614_CONST_SCALE 20 /* Scale in milliKelvin (0.02 * 1000) */
+#define MLX90614_CONST_RAW_EMISSIVITY_MAX 65535 /* max value for emissivity */
+#define MLX90614_CONST_EMISSIVITY_RESOLUTION 15259 /* 1/65535 ~ 0.000015259 */
+
struct mlx90614_data {
struct i2c_client *client;
struct mutex lock; /* for EEPROM access only */
@@ -204,11 +211,11 @@ static int mlx90614_read_raw(struct iio_dev *indio_dev,
*val = ret;
return IIO_VAL_INT;
case IIO_CHAN_INFO_OFFSET:
- *val = -13657;
- *val2 = 500000;
+ *val = MLX90614_CONST_OFFSET_DEC;
+ *val2 = MLX90614_CONST_OFFSET_REM;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_SCALE:
- *val = 20;
+ *val = MLX90614_CONST_SCALE;
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBEMISSIVITY: /* 1/65535 / LSB */
mlx90614_power_get(data, false);
@@ -221,12 +228,12 @@ static int mlx90614_read_raw(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
- if (ret == 65535) {
+ if (ret == MLX90614_CONST_RAW_EMISSIVITY_MAX) {
*val = 1;
*val2 = 0;
} else {
*val = 0;
- *val2 = ret * 15259; /* 1/65535 ~ 0.000015259 */
+ *val2 = ret * MLX90614_CONST_EMISSIVITY_RESOLUTION;
}
return IIO_VAL_INT_PLUS_NANO;
default:
@@ -245,7 +252,8 @@ static int mlx90614_write_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_CALIBEMISSIVITY: /* 1/65535 / LSB */
if (val < 0 || val2 < 0 || val > 1 || (val == 1 && val2 != 0))
return -EINVAL;
- val = val * 65535 + val2 / 15259; /* 1/65535 ~ 0.000015259 */
+ val = val * MLX90614_CONST_RAW_EMISSIVITY_MAX +
+ val2 / MLX90614_CONST_EMISSIVITY_RESOLUTION;
mlx90614_power_get(data, false);
mutex_lock(&data->lock);
@@ -551,7 +559,6 @@ static const struct dev_pm_ops mlx90614_pm_ops = {
static struct i2c_driver mlx90614_driver = {
.driver = {
.name = "mlx90614",
- .owner = THIS_MODULE,
.pm = &mlx90614_pm_ops,
},
.probe = mlx90614_probe,
diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c
index 8f21f32f9..e78c1069a 100644
--- a/drivers/iio/temperature/tmp006.c
+++ b/drivers/iio/temperature/tmp006.c
@@ -36,9 +36,9 @@
#define TMP006_CONFIG_DRDY_EN BIT(8)
#define TMP006_CONFIG_DRDY BIT(7)
-#define TMP006_CONFIG_MOD_MASK 0x7000
+#define TMP006_CONFIG_MOD_MASK GENMASK(14, 12)
-#define TMP006_CONFIG_CR_MASK 0x0e00
+#define TMP006_CONFIG_CR_MASK GENMASK(11, 9)
#define TMP006_CONFIG_CR_SHIFT 9
#define TMP006_MANUFACTURER_MAGIC 0x5449
@@ -280,7 +280,6 @@ static struct i2c_driver tmp006_driver = {
.driver = {
.name = "tmp006",
.pm = &tmp006_pm_ops,
- .owner = THIS_MODULE,
},
.probe = tmp006_probe,
.remove = tmp006_remove,