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-rw-r--r--drivers/hwmon/Kconfig21
-rw-r--r--drivers/hwmon/Makefile2
-rw-r--r--drivers/hwmon/abx500.c2
-rw-r--r--drivers/hwmon/ad7314.c1
-rw-r--r--drivers/hwmon/adcxx.c1
-rw-r--r--drivers/hwmon/ads7871.c1
-rw-r--r--drivers/hwmon/adt7310.c1
-rw-r--r--drivers/hwmon/applesmc.c6
-rw-r--r--drivers/hwmon/coretemp.c2
-rw-r--r--drivers/hwmon/fam15h_power.c87
-rw-r--r--drivers/hwmon/ibmpowernv.c7
-rw-r--r--drivers/hwmon/ina2xx.c243
-rw-r--r--drivers/hwmon/k10temp.c1
-rw-r--r--drivers/hwmon/lm70.c1
-rw-r--r--drivers/hwmon/lm75.c7
-rw-r--r--drivers/hwmon/max1111.c1
-rw-r--r--drivers/hwmon/max31790.c603
-rw-r--r--drivers/hwmon/nct6775.c101
-rw-r--r--drivers/hwmon/scpi-hwmon.c289
-rw-r--r--drivers/hwmon/tmp102.c16
20 files changed, 1205 insertions, 188 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index e13c902e8..80a73bfc1 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -321,6 +321,15 @@ config SENSORS_APPLESMC
Say Y here if you have an applicable laptop and want to experience
the awesome power of applesmc.
+config SENSORS_ARM_SCPI
+ tristate "ARM SCPI Sensors"
+ depends on ARM_SCPI_PROTOCOL
+ depends on THERMAL || !THERMAL_OF
+ help
+ This driver provides support for temperature, voltage, current
+ and power sensors available on ARM Ltd's SCP based platforms. The
+ actual number and type of sensors exported depend on the platform.
+
config SENSORS_ASB100
tristate "Asus ASB100 Bach"
depends on X86 && I2C
@@ -840,6 +849,16 @@ config SENSORS_MAX6697
This driver can also be built as a module. If so, the module
will be called max6697.
+config SENSORS_MAX31790
+ tristate "Maxim MAX31790 sensor chip"
+ depends on I2C
+ help
+ If you say yes here you get support for 6-Channel PWM-Output
+ Fan RPM Controller.
+
+ This driver can also be built as a module. If so, the module
+ will be called max31790.
+
config SENSORS_HTU21
tristate "Measurement Specialties HTU21D humidity/temperature sensors"
depends on I2C
@@ -1198,6 +1217,7 @@ config SENSORS_PWM_FAN
config SENSORS_SHT15
tristate "Sensiron humidity and temperature sensors. SHT15 and compat."
depends on GPIOLIB || COMPILE_TEST
+ select BITREVERSE
help
If you say yes here you get support for the Sensiron SHT10, SHT11,
SHT15, SHT71, SHT75 humidity and temperature sensors.
@@ -1453,6 +1473,7 @@ config SENSORS_INA209
config SENSORS_INA2XX
tristate "Texas Instruments INA219 and compatibles"
depends on I2C
+ select REGMAP_I2C
help
If you say yes here you get support for INA219, INA220, INA226,
INA230, and INA231 power monitor chips.
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 9e0f3dd28..12a32398f 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o
obj-$(CONFIG_SENSORS_ADT7470) += adt7470.o
obj-$(CONFIG_SENSORS_ADT7475) += adt7475.o
obj-$(CONFIG_SENSORS_APPLESMC) += applesmc.o
+obj-$(CONFIG_SENSORS_ARM_SCPI) += scpi-hwmon.o
obj-$(CONFIG_SENSORS_ASC7621) += asc7621.o
obj-$(CONFIG_SENSORS_ATXP1) += atxp1.o
obj-$(CONFIG_SENSORS_CORETEMP) += coretemp.o
@@ -115,6 +116,7 @@ obj-$(CONFIG_SENSORS_MAX6639) += max6639.o
obj-$(CONFIG_SENSORS_MAX6642) += max6642.o
obj-$(CONFIG_SENSORS_MAX6650) += max6650.o
obj-$(CONFIG_SENSORS_MAX6697) += max6697.o
+obj-$(CONFIG_SENSORS_MAX31790) += max31790.o
obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o
obj-$(CONFIG_SENSORS_MCP3021) += mcp3021.o
obj-$(CONFIG_SENSORS_MENF21BMC_HWMON) += menf21bmc_hwmon.o
diff --git a/drivers/hwmon/abx500.c b/drivers/hwmon/abx500.c
index 1fd46859e..d87cae8c6 100644
--- a/drivers/hwmon/abx500.c
+++ b/drivers/hwmon/abx500.c
@@ -377,7 +377,7 @@ static int setup_irqs(struct platform_device *pdev)
}
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
- abx500_temp_irq_handler, IRQF_NO_SUSPEND, "abx500-temp", pdev);
+ abx500_temp_irq_handler, 0, "abx500-temp", pdev);
if (ret < 0)
dev_err(&pdev->dev, "Request threaded irq failed (%d)\n", ret);
diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c
index 11955467f..202c1fbb3 100644
--- a/drivers/hwmon/ad7314.c
+++ b/drivers/hwmon/ad7314.c
@@ -157,7 +157,6 @@ MODULE_DEVICE_TABLE(spi, ad7314_id);
static struct spi_driver ad7314_driver = {
.driver = {
.name = "ad7314",
- .owner = THIS_MODULE,
},
.probe = ad7314_probe,
.remove = ad7314_remove,
diff --git a/drivers/hwmon/adcxx.c b/drivers/hwmon/adcxx.c
index 04c08c2f7..69e0bb97e 100644
--- a/drivers/hwmon/adcxx.c
+++ b/drivers/hwmon/adcxx.c
@@ -234,7 +234,6 @@ MODULE_DEVICE_TABLE(spi, adcxx_ids);
static struct spi_driver adcxx_driver = {
.driver = {
.name = "adcxx",
- .owner = THIS_MODULE,
},
.id_table = adcxx_ids,
.probe = adcxx_probe,
diff --git a/drivers/hwmon/ads7871.c b/drivers/hwmon/ads7871.c
index 3eff73b62..4fd9e4de1 100644
--- a/drivers/hwmon/ads7871.c
+++ b/drivers/hwmon/ads7871.c
@@ -237,7 +237,6 @@ static int ads7871_remove(struct spi_device *spi)
static struct spi_driver ads7871_driver = {
.driver = {
.name = DEVICE_NAME,
- .owner = THIS_MODULE,
},
.probe = ads7871_probe,
diff --git a/drivers/hwmon/adt7310.c b/drivers/hwmon/adt7310.c
index 5994cf68e..ec02f4f0d 100644
--- a/drivers/hwmon/adt7310.c
+++ b/drivers/hwmon/adt7310.c
@@ -104,7 +104,6 @@ MODULE_DEVICE_TABLE(spi, adt7310_id);
static struct spi_driver adt7310_driver = {
.driver = {
.name = "adt7310",
- .owner = THIS_MODULE,
.pm = ADT7X10_DEV_PM_OPS,
},
.probe = adt7310_spi_probe,
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 0af63da6b..0af7fd311 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -537,7 +537,7 @@ static int applesmc_init_index(struct applesmc_registers *s)
static int applesmc_init_smcreg_try(void)
{
struct applesmc_registers *s = &smcreg;
- bool left_light_sensor, right_light_sensor;
+ bool left_light_sensor = 0, right_light_sensor = 0;
unsigned int count;
u8 tmp[1];
int ret;
@@ -1138,7 +1138,7 @@ out:
return ret;
}
-/* Create accelerometer ressources */
+/* Create accelerometer resources */
static int applesmc_create_accelerometer(void)
{
struct input_dev *idev;
@@ -1191,7 +1191,7 @@ out:
return ret;
}
-/* Release all ressources used by the accelerometer */
+/* Release all resources used by the accelerometer */
static void applesmc_release_accelerometer(void)
{
if (!smcreg.has_accelerometer)
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 3e03379e7..6a27eb2fe 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -52,7 +52,7 @@ module_param_named(tjmax, force_tjmax, int, 0444);
MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
#define BASE_SYSFS_ATTR_NO 2 /* Sysfs Base attr no for coretemp */
-#define NUM_REAL_CORES 32 /* Number of Real cores per cpu */
+#define NUM_REAL_CORES 128 /* Number of Real cores per cpu */
#define CORETEMP_NAME_LENGTH 19 /* String Length of attrs */
#define MAX_CORE_ATTRS 4 /* Maximum no of basic attrs */
#define TOTAL_ATTRS (MAX_CORE_ATTRS + 1)
diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c
index e80ee23b6..5f7067d7b 100644
--- a/drivers/hwmon/fam15h_power.c
+++ b/drivers/hwmon/fam15h_power.c
@@ -26,6 +26,7 @@
#include <linux/pci.h>
#include <linux/bitops.h>
#include <asm/processor.h>
+#include <asm/msr.h>
MODULE_DESCRIPTION("AMD Family 15h CPU processor power monitor");
MODULE_AUTHOR("Andreas Herrmann <herrmann.der.user@googlemail.com>");
@@ -41,12 +42,21 @@ MODULE_LICENSE("GPL");
#define REG_TDP_RUNNING_AVERAGE 0xe0
#define REG_TDP_LIMIT3 0xe8
+#define FAM15H_MIN_NUM_ATTRS 2
+#define FAM15H_NUM_GROUPS 2
+
+#define MSR_F15H_CU_MAX_PWR_ACCUMULATOR 0xc001007b
+
struct fam15h_power_data {
struct pci_dev *pdev;
unsigned int tdp_to_watts;
unsigned int base_tdp;
unsigned int processor_pwr_watts;
unsigned int cpu_pwr_sample_ratio;
+ const struct attribute_group *groups[FAM15H_NUM_GROUPS];
+ struct attribute_group group;
+ /* maximum accumulated power of a compute unit */
+ u64 max_cu_acc_power;
};
static ssize_t show_power(struct device *dev,
@@ -105,29 +115,36 @@ static ssize_t show_power_crit(struct device *dev,
}
static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL);
-static umode_t fam15h_power_is_visible(struct kobject *kobj,
- struct attribute *attr,
- int index)
+static int fam15h_power_init_attrs(struct pci_dev *pdev,
+ struct fam15h_power_data *data)
{
- /* power1_input is only reported for Fam15h, Models 00h-0fh */
- if (attr == &dev_attr_power1_input.attr &&
- (boot_cpu_data.x86 != 0x15 || boot_cpu_data.x86_model > 0xf))
- return 0;
+ int n = FAM15H_MIN_NUM_ATTRS;
+ struct attribute **fam15h_power_attrs;
+ struct cpuinfo_x86 *c = &boot_cpu_data;
- return attr->mode;
-}
+ if (c->x86 == 0x15 &&
+ (c->x86_model <= 0xf ||
+ (c->x86_model >= 0x60 && c->x86_model <= 0x6f)))
+ n += 1;
-static struct attribute *fam15h_power_attrs[] = {
- &dev_attr_power1_input.attr,
- &dev_attr_power1_crit.attr,
- NULL
-};
+ fam15h_power_attrs = devm_kcalloc(&pdev->dev, n,
+ sizeof(*fam15h_power_attrs),
+ GFP_KERNEL);
-static const struct attribute_group fam15h_power_group = {
- .attrs = fam15h_power_attrs,
- .is_visible = fam15h_power_is_visible,
-};
-__ATTRIBUTE_GROUPS(fam15h_power);
+ if (!fam15h_power_attrs)
+ return -ENOMEM;
+
+ n = 0;
+ fam15h_power_attrs[n++] = &dev_attr_power1_crit.attr;
+ if (c->x86 == 0x15 &&
+ (c->x86_model <= 0xf ||
+ (c->x86_model >= 0x60 && c->x86_model <= 0x6f)))
+ fam15h_power_attrs[n++] = &dev_attr_power1_input.attr;
+
+ data->group.attrs = fam15h_power_attrs;
+
+ return 0;
+}
static bool should_load_on_this_node(struct pci_dev *f4)
{
@@ -186,11 +203,12 @@ static int fam15h_power_resume(struct pci_dev *pdev)
#define fam15h_power_resume NULL
#endif
-static void fam15h_power_init_data(struct pci_dev *f4,
- struct fam15h_power_data *data)
+static int fam15h_power_init_data(struct pci_dev *f4,
+ struct fam15h_power_data *data)
{
u32 val, eax, ebx, ecx, edx;
u64 tmp;
+ int ret;
pci_read_config_dword(f4, REG_PROCESSOR_TDP, &val);
data->base_tdp = val >> 16;
@@ -211,11 +229,15 @@ static void fam15h_power_init_data(struct pci_dev *f4,
/* convert to microWatt */
data->processor_pwr_watts = (tmp * 15625) >> 10;
+ ret = fam15h_power_init_attrs(f4, data);
+ if (ret)
+ return ret;
+
cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
/* CPUID Fn8000_0007:EDX[12] indicates to support accumulated power */
if (!(edx & BIT(12)))
- return;
+ return 0;
/*
* determine the ratio of the compute unit power accumulator
@@ -223,14 +245,24 @@ static void fam15h_power_init_data(struct pci_dev *f4,
* Fn8000_0007:ECX
*/
data->cpu_pwr_sample_ratio = ecx;
+
+ if (rdmsrl_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &tmp)) {
+ pr_err("Failed to read max compute unit power accumulator MSR\n");
+ return -ENODEV;
+ }
+
+ data->max_cu_acc_power = tmp;
+
+ return 0;
}
static int fam15h_power_probe(struct pci_dev *pdev,
- const struct pci_device_id *id)
+ const struct pci_device_id *id)
{
struct fam15h_power_data *data;
struct device *dev = &pdev->dev;
struct device *hwmon_dev;
+ int ret;
/*
* though we ignore every other northbridge, we still have to
@@ -246,12 +278,17 @@ static int fam15h_power_probe(struct pci_dev *pdev,
if (!data)
return -ENOMEM;
- fam15h_power_init_data(pdev, data);
+ ret = fam15h_power_init_data(pdev, data);
+ if (ret)
+ return ret;
+
data->pdev = pdev;
+ data->groups[0] = &data->group;
+
hwmon_dev = devm_hwmon_device_register_with_groups(dev, "fam15h_power",
data,
- fam15h_power_groups);
+ &data->groups[0]);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
index 4255514b2..55b5a8ff1 100644
--- a/drivers/hwmon/ibmpowernv.c
+++ b/drivers/hwmon/ibmpowernv.c
@@ -474,11 +474,18 @@ static const struct platform_device_id opal_sensor_driver_ids[] = {
};
MODULE_DEVICE_TABLE(platform, opal_sensor_driver_ids);
+static const struct of_device_id opal_sensor_match[] = {
+ { .compatible = "ibm,opal-sensor" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, opal_sensor_match);
+
static struct platform_driver ibmpowernv_driver = {
.probe = ibmpowernv_probe,
.id_table = opal_sensor_driver_ids,
.driver = {
.name = DRVNAME,
+ .of_match_table = opal_sensor_match,
},
};
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index 4d2815079..b24f1d304 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -37,6 +37,7 @@
#include <linux/of.h>
#include <linux/delay.h>
#include <linux/util_macros.h>
+#include <linux/regmap.h>
#include <linux/platform_data/ina2xx.h>
@@ -84,6 +85,11 @@
*/
#define INA226_TOTAL_CONV_TIME_DEFAULT 2200
+static struct regmap_config ina2xx_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 16,
+};
+
enum ina2xx_ids { ina219, ina226 };
struct ina2xx_config {
@@ -97,20 +103,13 @@ struct ina2xx_config {
};
struct ina2xx_data {
- struct i2c_client *client;
const struct ina2xx_config *config;
long rshunt;
- u16 curr_config;
-
- struct mutex update_lock;
- bool valid;
- unsigned long last_updated;
- int update_interval; /* in jiffies */
+ struct mutex config_lock;
+ struct regmap *regmap;
- int kind;
const struct attribute_group *groups[INA2XX_MAX_ATTRIBUTE_GROUPS];
- u16 regs[INA2XX_MAX_REGISTERS];
};
static const struct ina2xx_config ina2xx_config[] = {
@@ -153,7 +152,11 @@ static int ina226_reg_to_interval(u16 config)
return DIV_ROUND_CLOSEST(avg * INA226_TOTAL_CONV_TIME_DEFAULT, 1000);
}
-static u16 ina226_interval_to_reg(int interval, u16 config)
+/*
+ * Return the new, shifted AVG field value of CONFIG register,
+ * to use with regmap_update_bits
+ */
+static u16 ina226_interval_to_reg(int interval)
{
int avg, avg_bits;
@@ -162,15 +165,7 @@ static u16 ina226_interval_to_reg(int interval, u16 config)
avg_bits = find_closest(avg, ina226_avg_tab,
ARRAY_SIZE(ina226_avg_tab));
- return (config & ~INA226_AVG_RD_MASK) | INA226_SHIFT_AVG(avg_bits);
-}
-
-static void ina226_set_update_interval(struct ina2xx_data *data)
-{
- int ms;
-
- ms = ina226_reg_to_interval(data->curr_config);
- data->update_interval = msecs_to_jiffies(ms);
+ return INA226_SHIFT_AVG(avg_bits);
}
static int ina2xx_calibrate(struct ina2xx_data *data)
@@ -178,8 +173,7 @@ static int ina2xx_calibrate(struct ina2xx_data *data)
u16 val = DIV_ROUND_CLOSEST(data->config->calibration_factor,
data->rshunt);
- return i2c_smbus_write_word_swapped(data->client,
- INA2XX_CALIBRATION, val);
+ return regmap_write(data->regmap, INA2XX_CALIBRATION, val);
}
/*
@@ -187,12 +181,8 @@ static int ina2xx_calibrate(struct ina2xx_data *data)
*/
static int ina2xx_init(struct ina2xx_data *data)
{
- struct i2c_client *client = data->client;
- int ret;
-
- /* device configuration */
- ret = i2c_smbus_write_word_swapped(client, INA2XX_CONFIG,
- data->curr_config);
+ int ret = regmap_write(data->regmap, INA2XX_CONFIG,
+ data->config->config_default);
if (ret < 0)
return ret;
@@ -203,47 +193,52 @@ static int ina2xx_init(struct ina2xx_data *data)
return ina2xx_calibrate(data);
}
-static int ina2xx_do_update(struct device *dev)
+static int ina2xx_read_reg(struct device *dev, int reg, unsigned int *regval)
{
struct ina2xx_data *data = dev_get_drvdata(dev);
- struct i2c_client *client = data->client;
- int i, rv, retry;
+ int ret, retry;
- dev_dbg(&client->dev, "Starting ina2xx update\n");
+ dev_dbg(dev, "Starting register %d read\n", reg);
for (retry = 5; retry; retry--) {
- /* Read all registers */
- for (i = 0; i < data->config->registers; i++) {
- rv = i2c_smbus_read_word_swapped(client, i);
- if (rv < 0)
- return rv;
- data->regs[i] = rv;
- }
+
+ ret = regmap_read(data->regmap, reg, regval);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(dev, "read %d, val = 0x%04x\n", reg, *regval);
/*
* If the current value in the calibration register is 0, the
* power and current registers will also remain at 0. In case
* the chip has been reset let's check the calibration
* register and reinitialize if needed.
+ * We do that extra read of the calibration register if there
+ * is some hint of a chip reset.
*/
- if (data->regs[INA2XX_CALIBRATION] == 0) {
- dev_warn(dev, "chip not calibrated, reinitializing\n");
-
- rv = ina2xx_init(data);
- if (rv < 0)
- return rv;
-
- /*
- * Let's make sure the power and current registers
- * have been updated before trying again.
- */
- msleep(INA2XX_MAX_DELAY);
- continue;
+ if (*regval == 0) {
+ unsigned int cal;
+
+ ret = regmap_read(data->regmap, INA2XX_CALIBRATION,
+ &cal);
+ if (ret < 0)
+ return ret;
+
+ if (cal == 0) {
+ dev_warn(dev, "chip not calibrated, reinitializing\n");
+
+ ret = ina2xx_init(data);
+ if (ret < 0)
+ return ret;
+ /*
+ * Let's make sure the power and current
+ * registers have been updated before trying
+ * again.
+ */
+ msleep(INA2XX_MAX_DELAY);
+ continue;
+ }
}
-
- data->last_updated = jiffies;
- data->valid = 1;
-
return 0;
}
@@ -256,51 +251,31 @@ static int ina2xx_do_update(struct device *dev)
return -ENODEV;
}
-static struct ina2xx_data *ina2xx_update_device(struct device *dev)
-{
- struct ina2xx_data *data = dev_get_drvdata(dev);
- struct ina2xx_data *ret = data;
- unsigned long after;
- int rv;
-
- mutex_lock(&data->update_lock);
-
- after = data->last_updated + data->update_interval;
- if (time_after(jiffies, after) || !data->valid) {
- rv = ina2xx_do_update(dev);
- if (rv < 0)
- ret = ERR_PTR(rv);
- }
-
- mutex_unlock(&data->update_lock);
- return ret;
-}
-
-static int ina2xx_get_value(struct ina2xx_data *data, u8 reg)
+static int ina2xx_get_value(struct ina2xx_data *data, u8 reg,
+ unsigned int regval)
{
int val;
switch (reg) {
case INA2XX_SHUNT_VOLTAGE:
/* signed register */
- val = DIV_ROUND_CLOSEST((s16)data->regs[reg],
- data->config->shunt_div);
+ val = DIV_ROUND_CLOSEST((s16)regval, data->config->shunt_div);
break;
case INA2XX_BUS_VOLTAGE:
- val = (data->regs[reg] >> data->config->bus_voltage_shift)
+ val = (regval >> data->config->bus_voltage_shift)
* data->config->bus_voltage_lsb;
val = DIV_ROUND_CLOSEST(val, 1000);
break;
case INA2XX_POWER:
- val = data->regs[reg] * data->config->power_lsb;
+ val = regval * data->config->power_lsb;
break;
case INA2XX_CURRENT:
/* signed register, LSB=1mA (selected), in mA */
- val = (s16)data->regs[reg];
+ val = (s16)regval;
break;
case INA2XX_CALIBRATION:
val = DIV_ROUND_CLOSEST(data->config->calibration_factor,
- data->regs[reg]);
+ regval);
break;
default:
/* programmer goofed */
@@ -316,25 +291,25 @@ static ssize_t ina2xx_show_value(struct device *dev,
struct device_attribute *da, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
- struct ina2xx_data *data = ina2xx_update_device(dev);
+ struct ina2xx_data *data = dev_get_drvdata(dev);
+ unsigned int regval;
+
+ int err = ina2xx_read_reg(dev, attr->index, &regval);
- if (IS_ERR(data))
- return PTR_ERR(data);
+ if (err < 0)
+ return err;
return snprintf(buf, PAGE_SIZE, "%d\n",
- ina2xx_get_value(data, attr->index));
+ ina2xx_get_value(data, attr->index, regval));
}
static ssize_t ina2xx_set_shunt(struct device *dev,
struct device_attribute *da,
const char *buf, size_t count)
{
- struct ina2xx_data *data = ina2xx_update_device(dev);
unsigned long val;
int status;
-
- if (IS_ERR(data))
- return PTR_ERR(data);
+ struct ina2xx_data *data = dev_get_drvdata(dev);
status = kstrtoul(buf, 10, &val);
if (status < 0)
@@ -345,10 +320,10 @@ static ssize_t ina2xx_set_shunt(struct device *dev,
val > data->config->calibration_factor)
return -EINVAL;
- mutex_lock(&data->update_lock);
+ mutex_lock(&data->config_lock);
data->rshunt = val;
status = ina2xx_calibrate(data);
- mutex_unlock(&data->update_lock);
+ mutex_unlock(&data->config_lock);
if (status < 0)
return status;
@@ -370,17 +345,9 @@ static ssize_t ina226_set_interval(struct device *dev,
if (val > INT_MAX || val == 0)
return -EINVAL;
- mutex_lock(&data->update_lock);
- data->curr_config = ina226_interval_to_reg(val,
- data->regs[INA2XX_CONFIG]);
- status = i2c_smbus_write_word_swapped(data->client,
- INA2XX_CONFIG,
- data->curr_config);
-
- ina226_set_update_interval(data);
- /* Make sure the next access re-reads all registers. */
- data->valid = 0;
- mutex_unlock(&data->update_lock);
+ status = regmap_update_bits(data->regmap, INA2XX_CONFIG,
+ INA226_AVG_RD_MASK,
+ ina226_interval_to_reg(val));
if (status < 0)
return status;
@@ -390,18 +357,15 @@ static ssize_t ina226_set_interval(struct device *dev,
static ssize_t ina226_show_interval(struct device *dev,
struct device_attribute *da, char *buf)
{
- struct ina2xx_data *data = ina2xx_update_device(dev);
+ struct ina2xx_data *data = dev_get_drvdata(dev);
+ int status;
+ unsigned int regval;
- if (IS_ERR(data))
- return PTR_ERR(data);
+ status = regmap_read(data->regmap, INA2XX_CONFIG, &regval);
+ if (status)
+ return status;
- /*
- * We don't use data->update_interval here as we want to display
- * the actual interval used by the chip and jiffies_to_msecs()
- * doesn't seem to be accurate enough.
- */
- return snprintf(buf, PAGE_SIZE, "%d\n",
- ina226_reg_to_interval(data->regs[INA2XX_CONFIG]));
+ return snprintf(buf, PAGE_SIZE, "%d\n", ina226_reg_to_interval(regval));
}
/* shunt voltage */
@@ -455,60 +419,51 @@ static const struct attribute_group ina226_group = {
static int ina2xx_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- struct i2c_adapter *adapter = client->adapter;
- struct ina2xx_platform_data *pdata;
struct device *dev = &client->dev;
struct ina2xx_data *data;
struct device *hwmon_dev;
u32 val;
int ret, group = 0;
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
- return -ENODEV;
-
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- if (dev_get_platdata(dev)) {
- pdata = dev_get_platdata(dev);
- data->rshunt = pdata->shunt_uohms;
- } else if (!of_property_read_u32(dev->of_node,
- "shunt-resistor", &val)) {
- data->rshunt = val;
- } else {
- data->rshunt = INA2XX_RSHUNT_DEFAULT;
- }
-
/* set the device type */
- data->kind = id->driver_data;
- data->config = &ina2xx_config[data->kind];
- data->curr_config = data->config->config_default;
- data->client = client;
+ data->config = &ina2xx_config[id->driver_data];
- /*
- * Ina226 has a variable update_interval. For ina219 we
- * use a constant value.
- */
- if (data->kind == ina226)
- ina226_set_update_interval(data);
- else
- data->update_interval = HZ / INA2XX_CONVERSION_RATE;
+ if (of_property_read_u32(dev->of_node, "shunt-resistor", &val) < 0) {
+ struct ina2xx_platform_data *pdata = dev_get_platdata(dev);
+
+ if (pdata)
+ val = pdata->shunt_uohms;
+ else
+ val = INA2XX_RSHUNT_DEFAULT;
+ }
- if (data->rshunt <= 0 ||
- data->rshunt > data->config->calibration_factor)
+ if (val <= 0 || val > data->config->calibration_factor)
return -ENODEV;
+ data->rshunt = val;
+
+ ina2xx_regmap_config.max_register = data->config->registers;
+
+ data->regmap = devm_regmap_init_i2c(client, &ina2xx_regmap_config);
+ if (IS_ERR(data->regmap)) {
+ dev_err(dev, "failed to allocate register map\n");
+ return PTR_ERR(data->regmap);
+ }
+
ret = ina2xx_init(data);
if (ret < 0) {
dev_err(dev, "error configuring the device: %d\n", ret);
return -ENODEV;
}
- mutex_init(&data->update_lock);
+ mutex_init(&data->config_lock);
data->groups[group++] = &ina2xx_group;
- if (data->kind == ina226)
+ if (id->driver_data == ina226)
data->groups[group++] = &ina226_group;
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index 1e7bdcdcb..9cdfde651 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -60,7 +60,6 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
* Control]
*/
#define F15H_M60H_REPORTED_TEMP_CTRL_OFFSET 0xd8200ca4
-#define PCI_DEVICE_ID_AMD_15H_M60H_NB_F3 0x1573
static void amd_nb_smu_index_read(struct pci_dev *pdev, unsigned int devfn,
int offset, u32 *val)
diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c
index 9296e9daf..583f883a4 100644
--- a/drivers/hwmon/lm70.c
+++ b/drivers/hwmon/lm70.c
@@ -199,7 +199,6 @@ MODULE_DEVICE_TABLE(spi, lm70_ids);
static struct spi_driver lm70_driver = {
.driver = {
.name = "lm70",
- .owner = THIS_MODULE,
.of_match_table = of_match_ptr(lm70_of_ids),
},
.id_table = lm70_ids,
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index e4e57bbaf..0addc84ba 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -57,6 +57,7 @@ enum lm75_type { /* keep sorted in alphabetical order */
tmp175,
tmp275,
tmp75,
+ tmp75c,
};
/* Addresses scanned */
@@ -280,6 +281,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
data->resolution = 12;
data->sample_time = HZ / 2;
break;
+ case tmp75c:
+ clr_mask |= 1 << 5; /* not one-shot mode */
+ data->resolution = 12;
+ data->sample_time = HZ / 4;
+ break;
}
/* configure as specified */
@@ -343,6 +349,7 @@ static const struct i2c_device_id lm75_ids[] = {
{ "tmp175", tmp175, },
{ "tmp275", tmp275, },
{ "tmp75", tmp75, },
+ { "tmp75c", tmp75c, },
{ /* LIST END */ }
};
MODULE_DEVICE_TABLE(i2c, lm75_ids);
diff --git a/drivers/hwmon/max1111.c b/drivers/hwmon/max1111.c
index f67d71ee8..36544c4f6 100644
--- a/drivers/hwmon/max1111.c
+++ b/drivers/hwmon/max1111.c
@@ -277,7 +277,6 @@ MODULE_DEVICE_TABLE(spi, max1111_ids);
static struct spi_driver max1111_driver = {
.driver = {
.name = "max1111",
- .owner = THIS_MODULE,
},
.id_table = max1111_ids,
.probe = max1111_probe,
diff --git a/drivers/hwmon/max31790.c b/drivers/hwmon/max31790.c
new file mode 100644
index 000000000..69c0ac80a
--- /dev/null
+++ b/drivers/hwmon/max31790.c
@@ -0,0 +1,603 @@
+/*
+ * max31790.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring.
+ *
+ * (C) 2015 by Il Han <corone.il.han@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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/err.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+/* MAX31790 registers */
+#define MAX31790_REG_GLOBAL_CONFIG 0x00
+#define MAX31790_REG_FAN_CONFIG(ch) (0x02 + (ch))
+#define MAX31790_REG_FAN_DYNAMICS(ch) (0x08 + (ch))
+#define MAX31790_REG_FAN_FAULT_STATUS2 0x10
+#define MAX31790_REG_FAN_FAULT_STATUS1 0x11
+#define MAX31790_REG_TACH_COUNT(ch) (0x18 + (ch) * 2)
+#define MAX31790_REG_PWM_DUTY_CYCLE(ch) (0x30 + (ch) * 2)
+#define MAX31790_REG_PWMOUT(ch) (0x40 + (ch) * 2)
+#define MAX31790_REG_TARGET_COUNT(ch) (0x50 + (ch) * 2)
+
+/* Fan Config register bits */
+#define MAX31790_FAN_CFG_RPM_MODE 0x80
+#define MAX31790_FAN_CFG_TACH_INPUT_EN 0x08
+#define MAX31790_FAN_CFG_TACH_INPUT 0x01
+
+/* Fan Dynamics register bits */
+#define MAX31790_FAN_DYN_SR_SHIFT 5
+#define MAX31790_FAN_DYN_SR_MASK 0xE0
+#define SR_FROM_REG(reg) (((reg) & MAX31790_FAN_DYN_SR_MASK) \
+ >> MAX31790_FAN_DYN_SR_SHIFT)
+
+#define FAN_RPM_MIN 120
+#define FAN_RPM_MAX 7864320
+
+#define RPM_FROM_REG(reg, sr) (((reg) >> 4) ? \
+ ((60 * (sr) * 8192) / ((reg) >> 4)) : \
+ FAN_RPM_MAX)
+#define RPM_TO_REG(rpm, sr) ((60 * (sr) * 8192) / ((rpm) * 2))
+
+#define NR_CHANNEL 6
+
+/*
+ * Client data (each client gets its own)
+ */
+struct max31790_data {
+ struct i2c_client *client;
+ struct mutex update_lock;
+ bool valid; /* zero until following fields are valid */
+ unsigned long last_updated; /* in jiffies */
+
+ /* register values */
+ u8 fan_config[NR_CHANNEL];
+ u8 fan_dynamics[NR_CHANNEL];
+ u16 fault_status;
+ u16 tach[NR_CHANNEL * 2];
+ u16 pwm[NR_CHANNEL];
+ u16 target_count[NR_CHANNEL];
+};
+
+static struct max31790_data *max31790_update_device(struct device *dev)
+{
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ struct max31790_data *ret = data;
+ int i;
+ int rv;
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_FAULT_STATUS1);
+ if (rv < 0)
+ goto abort;
+ data->fault_status = rv & 0x3F;
+
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_FAULT_STATUS2);
+ if (rv < 0)
+ goto abort;
+ data->fault_status |= (rv & 0x3F) << 6;
+
+ for (i = 0; i < NR_CHANNEL; i++) {
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_TACH_COUNT(i));
+ if (rv < 0)
+ goto abort;
+ data->tach[i] = rv;
+
+ if (data->fan_config[i]
+ & MAX31790_FAN_CFG_TACH_INPUT) {
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_TACH_COUNT(NR_CHANNEL
+ + i));
+ if (rv < 0)
+ goto abort;
+ data->tach[NR_CHANNEL + i] = rv;
+ } else {
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_PWMOUT(i));
+ if (rv < 0)
+ goto abort;
+ data->pwm[i] = rv;
+
+ rv = i2c_smbus_read_word_swapped(client,
+ MAX31790_REG_TARGET_COUNT(i));
+ if (rv < 0)
+ goto abort;
+ data->target_count[i] = rv;
+ }
+ }
+
+ data->last_updated = jiffies;
+ data->valid = true;
+ }
+ goto done;
+
+abort:
+ data->valid = false;
+ ret = ERR_PTR(rv);
+
+done:
+ mutex_unlock(&data->update_lock);
+
+ return ret;
+}
+
+static const u8 tach_period[8] = { 1, 2, 4, 8, 16, 32, 32, 32 };
+
+static u8 get_tach_period(u8 fan_dynamics)
+{
+ return tach_period[SR_FROM_REG(fan_dynamics)];
+}
+
+static u8 bits_for_tach_period(int rpm)
+{
+ u8 bits;
+
+ if (rpm < 500)
+ bits = 0x0;
+ else if (rpm < 1000)
+ bits = 0x1;
+ else if (rpm < 2000)
+ bits = 0x2;
+ else if (rpm < 4000)
+ bits = 0x3;
+ else if (rpm < 8000)
+ bits = 0x4;
+ else
+ bits = 0x5;
+
+ return bits;
+}
+
+static ssize_t get_fan(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int sr, rpm;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ sr = get_tach_period(data->fan_dynamics[attr->index]);
+ rpm = RPM_FROM_REG(data->tach[attr->index], sr);
+
+ return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t get_fan_target(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int sr, rpm;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ sr = get_tach_period(data->fan_dynamics[attr->index]);
+ rpm = RPM_FROM_REG(data->target_count[attr->index], sr);
+
+ return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t set_fan_target(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ u8 bits;
+ int sr;
+ int target_count;
+ unsigned long rpm;
+ int err;
+
+ err = kstrtoul(buf, 10, &rpm);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+
+ rpm = clamp_val(rpm, FAN_RPM_MIN, FAN_RPM_MAX);
+ bits = bits_for_tach_period(rpm);
+ data->fan_dynamics[attr->index] =
+ ((data->fan_dynamics[attr->index]
+ & ~MAX31790_FAN_DYN_SR_MASK)
+ | (bits << MAX31790_FAN_DYN_SR_SHIFT));
+ err = i2c_smbus_write_byte_data(client,
+ MAX31790_REG_FAN_DYNAMICS(attr->index),
+ data->fan_dynamics[attr->index]);
+
+ if (err < 0) {
+ mutex_unlock(&data->update_lock);
+ return err;
+ }
+
+ sr = get_tach_period(data->fan_dynamics[attr->index]);
+ target_count = RPM_TO_REG(rpm, sr);
+ target_count = clamp_val(target_count, 0x1, 0x7FF);
+
+ data->target_count[attr->index] = target_count << 5;
+
+ err = i2c_smbus_write_word_swapped(client,
+ MAX31790_REG_TARGET_COUNT(attr->index),
+ data->target_count[attr->index]);
+
+ mutex_unlock(&data->update_lock);
+
+ if (err < 0)
+ return err;
+
+ return count;
+}
+
+static ssize_t get_pwm(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int pwm;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ pwm = data->pwm[attr->index] >> 8;
+
+ return sprintf(buf, "%d\n", pwm);
+}
+
+static ssize_t set_pwm(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ unsigned long pwm;
+ int err;
+
+ err = kstrtoul(buf, 10, &pwm);
+ if (err)
+ return err;
+
+ if (pwm > 255)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+
+ data->pwm[attr->index] = pwm << 8;
+ err = i2c_smbus_write_word_swapped(client,
+ MAX31790_REG_PWMOUT(attr->index),
+ data->pwm[attr->index]);
+
+ mutex_unlock(&data->update_lock);
+
+ if (err < 0)
+ return err;
+
+ return count;
+}
+
+static ssize_t get_pwm_enable(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int mode;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ if (data->fan_config[attr->index] & MAX31790_FAN_CFG_RPM_MODE)
+ mode = 2;
+ else if (data->fan_config[attr->index] & MAX31790_FAN_CFG_TACH_INPUT_EN)
+ mode = 1;
+ else
+ mode = 0;
+
+ return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t set_pwm_enable(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ unsigned long mode;
+ int err;
+
+ err = kstrtoul(buf, 10, &mode);
+ if (err)
+ return err;
+
+ switch (mode) {
+ case 0:
+ data->fan_config[attr->index] =
+ data->fan_config[attr->index]
+ & ~(MAX31790_FAN_CFG_TACH_INPUT_EN
+ | MAX31790_FAN_CFG_RPM_MODE);
+ break;
+ case 1:
+ data->fan_config[attr->index] =
+ (data->fan_config[attr->index]
+ | MAX31790_FAN_CFG_TACH_INPUT_EN)
+ & ~MAX31790_FAN_CFG_RPM_MODE;
+ break;
+ case 2:
+ data->fan_config[attr->index] =
+ data->fan_config[attr->index]
+ | MAX31790_FAN_CFG_TACH_INPUT_EN
+ | MAX31790_FAN_CFG_RPM_MODE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mutex_lock(&data->update_lock);
+
+ err = i2c_smbus_write_byte_data(client,
+ MAX31790_REG_FAN_CONFIG(attr->index),
+ data->fan_config[attr->index]);
+
+ mutex_unlock(&data->update_lock);
+
+ if (err < 0)
+ return err;
+
+ return count;
+}
+
+static ssize_t get_fan_fault(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct max31790_data *data = max31790_update_device(dev);
+ int fault;
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ fault = !!(data->fault_status & (1 << attr->index));
+
+ return sprintf(buf, "%d\n", fault);
+}
+
+static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, get_fan, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, get_fan, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, get_fan, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, get_fan, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, get_fan, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, get_fan, NULL, 5);
+
+static SENSOR_DEVICE_ATTR(fan1_fault, S_IRUGO, get_fan_fault, NULL, 0);
+static SENSOR_DEVICE_ATTR(fan2_fault, S_IRUGO, get_fan_fault, NULL, 1);
+static SENSOR_DEVICE_ATTR(fan3_fault, S_IRUGO, get_fan_fault, NULL, 2);
+static SENSOR_DEVICE_ATTR(fan4_fault, S_IRUGO, get_fan_fault, NULL, 3);
+static SENSOR_DEVICE_ATTR(fan5_fault, S_IRUGO, get_fan_fault, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan6_fault, S_IRUGO, get_fan_fault, NULL, 5);
+
+static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, get_fan, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_input, S_IRUGO, get_fan, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan9_input, S_IRUGO, get_fan, NULL, 8);
+static SENSOR_DEVICE_ATTR(fan10_input, S_IRUGO, get_fan, NULL, 9);
+static SENSOR_DEVICE_ATTR(fan11_input, S_IRUGO, get_fan, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan12_input, S_IRUGO, get_fan, NULL, 11);
+
+static SENSOR_DEVICE_ATTR(fan7_fault, S_IRUGO, get_fan_fault, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan8_fault, S_IRUGO, get_fan_fault, NULL, 7);
+static SENSOR_DEVICE_ATTR(fan9_fault, S_IRUGO, get_fan_fault, NULL, 8);
+static SENSOR_DEVICE_ATTR(fan10_fault, S_IRUGO, get_fan_fault, NULL, 9);
+static SENSOR_DEVICE_ATTR(fan11_fault, S_IRUGO, get_fan_fault, NULL, 10);
+static SENSOR_DEVICE_ATTR(fan12_fault, S_IRUGO, get_fan_fault, NULL, 11);
+
+static SENSOR_DEVICE_ATTR(fan1_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 0);
+static SENSOR_DEVICE_ATTR(fan2_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 1);
+static SENSOR_DEVICE_ATTR(fan3_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 2);
+static SENSOR_DEVICE_ATTR(fan4_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 3);
+static SENSOR_DEVICE_ATTR(fan5_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 4);
+static SENSOR_DEVICE_ATTR(fan6_target, S_IWUSR | S_IRUGO,
+ get_fan_target, set_fan_target, 5);
+
+static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 0);
+static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 1);
+static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 2);
+static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 3);
+static SENSOR_DEVICE_ATTR(pwm5, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 4);
+static SENSOR_DEVICE_ATTR(pwm6, S_IWUSR | S_IRUGO, get_pwm, set_pwm, 5);
+
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 2);
+static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 3);
+static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 4);
+static SENSOR_DEVICE_ATTR(pwm6_enable, S_IWUSR | S_IRUGO,
+ get_pwm_enable, set_pwm_enable, 5);
+
+static struct attribute *max31790_attrs[] = {
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan3_input.dev_attr.attr,
+ &sensor_dev_attr_fan4_input.dev_attr.attr,
+ &sensor_dev_attr_fan5_input.dev_attr.attr,
+ &sensor_dev_attr_fan6_input.dev_attr.attr,
+
+ &sensor_dev_attr_fan1_fault.dev_attr.attr,
+ &sensor_dev_attr_fan2_fault.dev_attr.attr,
+ &sensor_dev_attr_fan3_fault.dev_attr.attr,
+ &sensor_dev_attr_fan4_fault.dev_attr.attr,
+ &sensor_dev_attr_fan5_fault.dev_attr.attr,
+ &sensor_dev_attr_fan6_fault.dev_attr.attr,
+
+ &sensor_dev_attr_fan7_input.dev_attr.attr,
+ &sensor_dev_attr_fan8_input.dev_attr.attr,
+ &sensor_dev_attr_fan9_input.dev_attr.attr,
+ &sensor_dev_attr_fan10_input.dev_attr.attr,
+ &sensor_dev_attr_fan11_input.dev_attr.attr,
+ &sensor_dev_attr_fan12_input.dev_attr.attr,
+
+ &sensor_dev_attr_fan7_fault.dev_attr.attr,
+ &sensor_dev_attr_fan8_fault.dev_attr.attr,
+ &sensor_dev_attr_fan9_fault.dev_attr.attr,
+ &sensor_dev_attr_fan10_fault.dev_attr.attr,
+ &sensor_dev_attr_fan11_fault.dev_attr.attr,
+ &sensor_dev_attr_fan12_fault.dev_attr.attr,
+
+ &sensor_dev_attr_fan1_target.dev_attr.attr,
+ &sensor_dev_attr_fan2_target.dev_attr.attr,
+ &sensor_dev_attr_fan3_target.dev_attr.attr,
+ &sensor_dev_attr_fan4_target.dev_attr.attr,
+ &sensor_dev_attr_fan5_target.dev_attr.attr,
+ &sensor_dev_attr_fan6_target.dev_attr.attr,
+
+ &sensor_dev_attr_pwm1.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
+ &sensor_dev_attr_pwm4.dev_attr.attr,
+ &sensor_dev_attr_pwm5.dev_attr.attr,
+ &sensor_dev_attr_pwm6.dev_attr.attr,
+
+ &sensor_dev_attr_pwm1_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm4_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm5_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm6_enable.dev_attr.attr,
+ NULL
+};
+
+static umode_t max31790_attrs_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct max31790_data *data = dev_get_drvdata(dev);
+ struct device_attribute *devattr =
+ container_of(a, struct device_attribute, attr);
+ int index = to_sensor_dev_attr(devattr)->index % NR_CHANNEL;
+ u8 fan_config;
+
+ fan_config = data->fan_config[index];
+
+ if (n >= NR_CHANNEL * 2 && n < NR_CHANNEL * 4 &&
+ !(fan_config & MAX31790_FAN_CFG_TACH_INPUT))
+ return 0;
+ if (n >= NR_CHANNEL * 4 && (fan_config & MAX31790_FAN_CFG_TACH_INPUT))
+ return 0;
+
+ return a->mode;
+}
+
+static const struct attribute_group max31790_group = {
+ .attrs = max31790_attrs,
+ .is_visible = max31790_attrs_visible,
+};
+__ATTRIBUTE_GROUPS(max31790);
+
+static int max31790_init_client(struct i2c_client *client,
+ struct max31790_data *data)
+{
+ int i, rv;
+
+ for (i = 0; i < NR_CHANNEL; i++) {
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_CONFIG(i));
+ if (rv < 0)
+ return rv;
+ data->fan_config[i] = rv;
+
+ rv = i2c_smbus_read_byte_data(client,
+ MAX31790_REG_FAN_DYNAMICS(i));
+ if (rv < 0)
+ return rv;
+ data->fan_dynamics[i] = rv;
+ }
+
+ return 0;
+}
+
+static int max31790_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ struct device *dev = &client->dev;
+ struct max31790_data *data;
+ struct device *hwmon_dev;
+ int err;
+
+ if (!i2c_check_functionality(adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
+ return -ENODEV;
+
+ data = devm_kzalloc(dev, sizeof(struct max31790_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->client = client;
+ mutex_init(&data->update_lock);
+
+ /*
+ * Initialize the max31790 chip
+ */
+ err = max31790_init_client(client, data);
+ if (err)
+ return err;
+
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev,
+ client->name, data, max31790_groups);
+
+ return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static const struct i2c_device_id max31790_id[] = {
+ { "max31790", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max31790_id);
+
+static struct i2c_driver max31790_driver = {
+ .class = I2C_CLASS_HWMON,
+ .probe = max31790_probe,
+ .driver = {
+ .name = "max31790",
+ },
+ .id_table = max31790_id,
+};
+
+module_i2c_driver(max31790_driver);
+
+MODULE_AUTHOR("Il Han <corone.il.han@gmail.com>");
+MODULE_DESCRIPTION("MAX31790 sensor driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 8b4fa55e4..d7ebdf865 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -515,16 +515,24 @@ static const char *const nct6779_temp_label[] = {
"PCH_DIM1_TEMP",
"PCH_DIM2_TEMP",
"PCH_DIM3_TEMP",
- "BYTE_TEMP"
+ "BYTE_TEMP",
+ "",
+ "",
+ "",
+ "",
+ "Virtual_TEMP"
};
-static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1]
+#define NCT6779_NUM_LABELS (ARRAY_SIZE(nct6779_temp_label) - 5)
+#define NCT6791_NUM_LABELS ARRAY_SIZE(nct6779_temp_label)
+
+static const u16 NCT6779_REG_TEMP_ALTERNATE[NCT6791_NUM_LABELS - 1]
= { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407,
0x408, 0 };
-static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1]
+static const u16 NCT6779_REG_TEMP_CRIT[NCT6791_NUM_LABELS - 1]
= { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a };
/* NCT6791 specific data */
@@ -557,6 +565,76 @@ static const u16 NCT6792_REG_TEMP_MON[] = {
static const u16 NCT6792_REG_BEEP[NUM_REG_BEEP] = {
0xb2, 0xb3, 0xb4, 0xb5, 0xbf };
+static const char *const nct6792_temp_label[] = {
+ "",
+ "SYSTIN",
+ "CPUTIN",
+ "AUXTIN0",
+ "AUXTIN1",
+ "AUXTIN2",
+ "AUXTIN3",
+ "",
+ "SMBUSMASTER 0",
+ "SMBUSMASTER 1",
+ "SMBUSMASTER 2",
+ "SMBUSMASTER 3",
+ "SMBUSMASTER 4",
+ "SMBUSMASTER 5",
+ "SMBUSMASTER 6",
+ "SMBUSMASTER 7",
+ "PECI Agent 0",
+ "PECI Agent 1",
+ "PCH_CHIP_CPU_MAX_TEMP",
+ "PCH_CHIP_TEMP",
+ "PCH_CPU_TEMP",
+ "PCH_MCH_TEMP",
+ "PCH_DIM0_TEMP",
+ "PCH_DIM1_TEMP",
+ "PCH_DIM2_TEMP",
+ "PCH_DIM3_TEMP",
+ "BYTE_TEMP",
+ "PECI Agent 0 Calibration",
+ "PECI Agent 1 Calibration",
+ "",
+ "",
+ "Virtual_TEMP"
+};
+
+static const char *const nct6793_temp_label[] = {
+ "",
+ "SYSTIN",
+ "CPUTIN",
+ "AUXTIN0",
+ "AUXTIN1",
+ "AUXTIN2",
+ "AUXTIN3",
+ "",
+ "SMBUSMASTER 0",
+ "SMBUSMASTER 1",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "",
+ "PECI Agent 0",
+ "PECI Agent 1",
+ "PCH_CHIP_CPU_MAX_TEMP",
+ "PCH_CHIP_TEMP",
+ "PCH_CPU_TEMP",
+ "PCH_MCH_TEMP",
+ "Agent0 Dimm0 ",
+ "Agent0 Dimm1",
+ "Agent1 Dimm0",
+ "Agent1 Dimm1",
+ "BYTE_TEMP0",
+ "BYTE_TEMP1",
+ "PECI Agent 0 Calibration",
+ "PECI Agent 1 Calibration",
+ "",
+ "Virtual_TEMP"
+};
+
/* NCT6102D/NCT6106D specific data */
#define NCT6106_REG_VBAT 0x318
@@ -3605,7 +3683,7 @@ static int nct6775_probe(struct platform_device *pdev)
data->speed_tolerance_limit = 63;
data->temp_label = nct6779_temp_label;
- data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+ data->temp_label_num = NCT6779_NUM_LABELS;
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
@@ -3682,8 +3760,19 @@ static int nct6775_probe(struct platform_device *pdev)
data->tolerance_mask = 0x07;
data->speed_tolerance_limit = 63;
- data->temp_label = nct6779_temp_label;
- data->temp_label_num = ARRAY_SIZE(nct6779_temp_label);
+ switch (data->kind) {
+ default:
+ case nct6791:
+ data->temp_label = nct6779_temp_label;
+ break;
+ case nct6792:
+ data->temp_label = nct6792_temp_label;
+ break;
+ case nct6793:
+ data->temp_label = nct6793_temp_label;
+ break;
+ }
+ data->temp_label_num = NCT6791_NUM_LABELS;
data->REG_CONFIG = NCT6775_REG_CONFIG;
data->REG_VBAT = NCT6775_REG_VBAT;
diff --git a/drivers/hwmon/scpi-hwmon.c b/drivers/hwmon/scpi-hwmon.c
new file mode 100644
index 000000000..7e20567bc
--- /dev/null
+++ b/drivers/hwmon/scpi-hwmon.c
@@ -0,0 +1,289 @@
+/*
+ * System Control and Power Interface(SCPI) based hwmon sensor driver
+ *
+ * Copyright (C) 2015 ARM Ltd.
+ * Punit Agrawal <punit.agrawal@arm.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 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/hwmon.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/scpi_protocol.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/thermal.h>
+
+struct sensor_data {
+ struct scpi_sensor_info info;
+ struct device_attribute dev_attr_input;
+ struct device_attribute dev_attr_label;
+ char input[20];
+ char label[20];
+};
+
+struct scpi_thermal_zone {
+ struct list_head list;
+ int sensor_id;
+ struct scpi_sensors *scpi_sensors;
+ struct thermal_zone_device *tzd;
+};
+
+struct scpi_sensors {
+ struct scpi_ops *scpi_ops;
+ struct sensor_data *data;
+ struct list_head thermal_zones;
+ struct attribute **attrs;
+ struct attribute_group group;
+ const struct attribute_group *groups[2];
+};
+
+static int scpi_read_temp(void *dev, int *temp)
+{
+ struct scpi_thermal_zone *zone = dev;
+ struct scpi_sensors *scpi_sensors = zone->scpi_sensors;
+ struct scpi_ops *scpi_ops = scpi_sensors->scpi_ops;
+ struct sensor_data *sensor = &scpi_sensors->data[zone->sensor_id];
+ u32 value;
+ int ret;
+
+ ret = scpi_ops->sensor_get_value(sensor->info.sensor_id, &value);
+ if (ret)
+ return ret;
+
+ *temp = value;
+ return 0;
+}
+
+/* hwmon callback functions */
+static ssize_t
+scpi_show_sensor(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct scpi_sensors *scpi_sensors = dev_get_drvdata(dev);
+ struct scpi_ops *scpi_ops = scpi_sensors->scpi_ops;
+ struct sensor_data *sensor;
+ u32 value;
+ int ret;
+
+ sensor = container_of(attr, struct sensor_data, dev_attr_input);
+
+ ret = scpi_ops->sensor_get_value(sensor->info.sensor_id, &value);
+ if (ret)
+ return ret;
+
+ return sprintf(buf, "%u\n", value);
+}
+
+static ssize_t
+scpi_show_label(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_data *sensor;
+
+ sensor = container_of(attr, struct sensor_data, dev_attr_label);
+
+ return sprintf(buf, "%s\n", sensor->info.name);
+}
+
+static void
+unregister_thermal_zones(struct platform_device *pdev,
+ struct scpi_sensors *scpi_sensors)
+{
+ struct list_head *pos;
+
+ list_for_each(pos, &scpi_sensors->thermal_zones) {
+ struct scpi_thermal_zone *zone;
+
+ zone = list_entry(pos, struct scpi_thermal_zone, list);
+ thermal_zone_of_sensor_unregister(&pdev->dev, zone->tzd);
+ }
+}
+
+static struct thermal_zone_of_device_ops scpi_sensor_ops = {
+ .get_temp = scpi_read_temp,
+};
+
+static int scpi_hwmon_probe(struct platform_device *pdev)
+{
+ u16 nr_sensors, i;
+ int num_temp = 0, num_volt = 0, num_current = 0, num_power = 0;
+ struct scpi_ops *scpi_ops;
+ struct device *hwdev, *dev = &pdev->dev;
+ struct scpi_sensors *scpi_sensors;
+ int ret, idx;
+
+ scpi_ops = get_scpi_ops();
+ if (!scpi_ops)
+ return -EPROBE_DEFER;
+
+ ret = scpi_ops->sensor_get_capability(&nr_sensors);
+ if (ret)
+ return ret;
+
+ if (!nr_sensors)
+ return -ENODEV;
+
+ scpi_sensors = devm_kzalloc(dev, sizeof(*scpi_sensors), GFP_KERNEL);
+ if (!scpi_sensors)
+ return -ENOMEM;
+
+ scpi_sensors->data = devm_kcalloc(dev, nr_sensors,
+ sizeof(*scpi_sensors->data), GFP_KERNEL);
+ if (!scpi_sensors->data)
+ return -ENOMEM;
+
+ scpi_sensors->attrs = devm_kcalloc(dev, (nr_sensors * 2) + 1,
+ sizeof(*scpi_sensors->attrs), GFP_KERNEL);
+ if (!scpi_sensors->attrs)
+ return -ENOMEM;
+
+ scpi_sensors->scpi_ops = scpi_ops;
+
+ for (i = 0, idx = 0; i < nr_sensors; i++) {
+ struct sensor_data *sensor = &scpi_sensors->data[idx];
+
+ ret = scpi_ops->sensor_get_info(i, &sensor->info);
+ if (ret)
+ return ret;
+
+ switch (sensor->info.class) {
+ case TEMPERATURE:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "temp%d_input", num_temp + 1);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "temp%d_label", num_temp + 1);
+ num_temp++;
+ break;
+ case VOLTAGE:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "in%d_input", num_volt);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "in%d_label", num_volt);
+ num_volt++;
+ break;
+ case CURRENT:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "curr%d_input", num_current + 1);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "curr%d_label", num_current + 1);
+ num_current++;
+ break;
+ case POWER:
+ snprintf(sensor->input, sizeof(sensor->input),
+ "power%d_input", num_power + 1);
+ snprintf(sensor->label, sizeof(sensor->input),
+ "power%d_label", num_power + 1);
+ num_power++;
+ break;
+ default:
+ continue;
+ }
+
+ sensor->dev_attr_input.attr.mode = S_IRUGO;
+ sensor->dev_attr_input.show = scpi_show_sensor;
+ sensor->dev_attr_input.attr.name = sensor->input;
+
+ sensor->dev_attr_label.attr.mode = S_IRUGO;
+ sensor->dev_attr_label.show = scpi_show_label;
+ sensor->dev_attr_label.attr.name = sensor->label;
+
+ scpi_sensors->attrs[idx << 1] = &sensor->dev_attr_input.attr;
+ scpi_sensors->attrs[(idx << 1) + 1] = &sensor->dev_attr_label.attr;
+
+ sysfs_attr_init(scpi_sensors->attrs[idx << 1]);
+ sysfs_attr_init(scpi_sensors->attrs[(idx << 1) + 1]);
+ idx++;
+ }
+
+ scpi_sensors->group.attrs = scpi_sensors->attrs;
+ scpi_sensors->groups[0] = &scpi_sensors->group;
+
+ platform_set_drvdata(pdev, scpi_sensors);
+
+ hwdev = devm_hwmon_device_register_with_groups(dev,
+ "scpi_sensors", scpi_sensors, scpi_sensors->groups);
+
+ if (IS_ERR(hwdev))
+ return PTR_ERR(hwdev);
+
+ /*
+ * Register the temperature sensors with the thermal framework
+ * to allow their usage in setting up the thermal zones from
+ * device tree.
+ *
+ * NOTE: Not all temperature sensors maybe used for thermal
+ * control
+ */
+ INIT_LIST_HEAD(&scpi_sensors->thermal_zones);
+ for (i = 0; i < nr_sensors; i++) {
+ struct sensor_data *sensor = &scpi_sensors->data[i];
+ struct scpi_thermal_zone *zone;
+
+ if (sensor->info.class != TEMPERATURE)
+ continue;
+
+ zone = devm_kzalloc(dev, sizeof(*zone), GFP_KERNEL);
+ if (!zone) {
+ ret = -ENOMEM;
+ goto unregister_tzd;
+ }
+
+ zone->sensor_id = i;
+ zone->scpi_sensors = scpi_sensors;
+ zone->tzd = thermal_zone_of_sensor_register(dev,
+ sensor->info.sensor_id, zone, &scpi_sensor_ops);
+ /*
+ * The call to thermal_zone_of_sensor_register returns
+ * an error for sensors that are not associated with
+ * any thermal zones or if the thermal subsystem is
+ * not configured.
+ */
+ if (IS_ERR(zone->tzd)) {
+ devm_kfree(dev, zone);
+ continue;
+ }
+ list_add(&zone->list, &scpi_sensors->thermal_zones);
+ }
+
+ return 0;
+
+unregister_tzd:
+ unregister_thermal_zones(pdev, scpi_sensors);
+ return ret;
+}
+
+static int scpi_hwmon_remove(struct platform_device *pdev)
+{
+ struct scpi_sensors *scpi_sensors = platform_get_drvdata(pdev);
+
+ unregister_thermal_zones(pdev, scpi_sensors);
+
+ return 0;
+}
+
+static const struct of_device_id scpi_of_match[] = {
+ {.compatible = "arm,scpi-sensors"},
+ {},
+};
+
+static struct platform_driver scpi_hwmon_platdrv = {
+ .driver = {
+ .name = "scpi-hwmon",
+ .owner = THIS_MODULE,
+ .of_match_table = scpi_of_match,
+ },
+ .probe = scpi_hwmon_probe,
+ .remove = scpi_hwmon_remove,
+};
+module_platform_driver(scpi_hwmon_platdrv);
+
+MODULE_AUTHOR("Punit Agrawal <punit.agrawal@arm.com>");
+MODULE_DESCRIPTION("ARM SCPI HWMON interface driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c
index 65482624e..5289aa098 100644
--- a/drivers/hwmon/tmp102.c
+++ b/drivers/hwmon/tmp102.c
@@ -58,6 +58,7 @@ struct tmp102 {
u16 config_orig;
unsigned long last_update;
int temp[3];
+ bool first_time;
};
/* convert left adjusted 13-bit TMP102 register value to milliCelsius */
@@ -93,6 +94,7 @@ static struct tmp102 *tmp102_update_device(struct device *dev)
tmp102->temp[i] = tmp102_reg_to_mC(status);
}
tmp102->last_update = jiffies;
+ tmp102->first_time = false;
}
mutex_unlock(&tmp102->lock);
return tmp102;
@@ -102,6 +104,12 @@ static int tmp102_read_temp(void *dev, int *temp)
{
struct tmp102 *tmp102 = tmp102_update_device(dev);
+ /* Is it too early even to return a conversion? */
+ if (tmp102->first_time) {
+ dev_dbg(dev, "%s: Conversion not ready yet..\n", __func__);
+ return -EAGAIN;
+ }
+
*temp = tmp102->temp[0];
return 0;
@@ -114,6 +122,10 @@ static ssize_t tmp102_show_temp(struct device *dev,
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
struct tmp102 *tmp102 = tmp102_update_device(dev);
+ /* Is it too early even to return a read? */
+ if (tmp102->first_time)
+ return -EAGAIN;
+
return sprintf(buf, "%d\n", tmp102->temp[sda->index]);
}
@@ -207,7 +219,9 @@ static int tmp102_probe(struct i2c_client *client,
status = -ENODEV;
goto fail_restore_config;
}
- tmp102->last_update = jiffies - HZ;
+ tmp102->last_update = jiffies;
+ /* Mark that we are not ready with data until conversion is complete */
+ tmp102->first_time = true;
mutex_init(&tmp102->lock);
hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-11 20:50:48 +0000