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-rw-r--r--drivers/leds/Kconfig10
-rw-r--r--drivers/leds/Makefile1
-rw-r--r--drivers/leds/led-class.c69
-rw-r--r--drivers/leds/led-core.c73
-rw-r--r--drivers/leds/leds-88pm860x.c1
-rw-r--r--drivers/leds/leds-bcm6328.c45
-rw-r--r--drivers/leds/leds-bcm6358.c4
-rw-r--r--drivers/leds/leds-cobalt-qube.c23
-rw-r--r--drivers/leds/leds-dac124s085.c1
-rw-r--r--drivers/leds/leds-gpio.c13
-rw-r--r--drivers/leds/leds-hp6xx.c17
-rw-r--r--drivers/leds/leds-ipaq-micro.c27
-rw-r--r--drivers/leds/leds-locomo.c15
-rw-r--r--drivers/leds/leds-menf21bmc.c26
-rw-r--r--drivers/leds/leds-net48xx.c9
-rw-r--r--drivers/leds/leds-netxbig.c336
-rw-r--r--drivers/leds/leds-ot200.c21
-rw-r--r--drivers/leds/leds-powernv.c8
-rw-r--r--drivers/leds/leds-sead3.c78
-rw-r--r--drivers/leds/leds-wrap.c28
-rw-r--r--drivers/leds/leds.h1
-rw-r--r--drivers/leds/trigger/ledtrig-heartbeat.c47
22 files changed, 550 insertions, 303 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 42990f2d0..b1ab8bdf8 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -556,6 +556,16 @@ config LEDS_KTD2692
Say Y to enable this driver.
+config LEDS_SEAD3
+ tristate "LED support for the MIPS SEAD 3 board"
+ depends on LEDS_CLASS && MIPS_SEAD3
+ help
+ Say Y here to include support for the FLED and PLED LEDs on SEAD3 eval
+ boards.
+
+ This driver can also be built as a module. If so the module
+ will be called leds-sead3.
+
comment "LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)"
config LEDS_BLINKM
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index b503f92dc..e9d530927 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -65,6 +65,7 @@ obj-$(CONFIG_LEDS_VERSATILE) += leds-versatile.o
obj-$(CONFIG_LEDS_MENF21BMC) += leds-menf21bmc.o
obj-$(CONFIG_LEDS_KTD2692) += leds-ktd2692.o
obj-$(CONFIG_LEDS_POWERNV) += leds-powernv.o
+obj-$(CONFIG_LEDS_SEAD3) += leds-sead3.o
# LED SPI Drivers
obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index ca51d58be..7385f98dd 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -102,70 +102,6 @@ static const struct attribute_group *led_groups[] = {
NULL,
};
-static void led_timer_function(unsigned long data)
-{
- struct led_classdev *led_cdev = (void *)data;
- unsigned long brightness;
- unsigned long delay;
-
- if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {
- led_set_brightness_async(led_cdev, LED_OFF);
- return;
- }
-
- if (led_cdev->flags & LED_BLINK_ONESHOT_STOP) {
- led_cdev->flags &= ~LED_BLINK_ONESHOT_STOP;
- return;
- }
-
- brightness = led_get_brightness(led_cdev);
- if (!brightness) {
- /* Time to switch the LED on. */
- if (led_cdev->delayed_set_value) {
- led_cdev->blink_brightness =
- led_cdev->delayed_set_value;
- led_cdev->delayed_set_value = 0;
- }
- brightness = led_cdev->blink_brightness;
- delay = led_cdev->blink_delay_on;
- } else {
- /* Store the current brightness value to be able
- * to restore it when the delay_off period is over.
- */
- led_cdev->blink_brightness = brightness;
- brightness = LED_OFF;
- delay = led_cdev->blink_delay_off;
- }
-
- led_set_brightness_async(led_cdev, brightness);
-
- /* Return in next iteration if led is in one-shot mode and we are in
- * the final blink state so that the led is toggled each delay_on +
- * delay_off milliseconds in worst case.
- */
- if (led_cdev->flags & LED_BLINK_ONESHOT) {
- if (led_cdev->flags & LED_BLINK_INVERT) {
- if (brightness)
- led_cdev->flags |= LED_BLINK_ONESHOT_STOP;
- } else {
- if (!brightness)
- led_cdev->flags |= LED_BLINK_ONESHOT_STOP;
- }
- }
-
- mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));
-}
-
-static void set_brightness_delayed(struct work_struct *ws)
-{
- struct led_classdev *led_cdev =
- container_of(ws, struct led_classdev, set_brightness_work);
-
- led_stop_software_blink(led_cdev);
-
- led_set_brightness_async(led_cdev, led_cdev->delayed_set_value);
-}
-
/**
* led_classdev_suspend - suspend an led_classdev.
* @led_cdev: the led_classdev to suspend.
@@ -283,10 +219,7 @@ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev)
led_update_brightness(led_cdev);
- INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);
-
- setup_timer(&led_cdev->blink_timer, led_timer_function,
- (unsigned long)led_cdev);
+ led_init_core(led_cdev);
#ifdef CONFIG_LEDS_TRIGGERS
led_trigger_set_default(led_cdev);
diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index 549de7e24..c1c3af089 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -25,6 +25,70 @@ EXPORT_SYMBOL_GPL(leds_list_lock);
LIST_HEAD(leds_list);
EXPORT_SYMBOL_GPL(leds_list);
+static void led_timer_function(unsigned long data)
+{
+ struct led_classdev *led_cdev = (void *)data;
+ unsigned long brightness;
+ unsigned long delay;
+
+ if (!led_cdev->blink_delay_on || !led_cdev->blink_delay_off) {
+ led_set_brightness_async(led_cdev, LED_OFF);
+ return;
+ }
+
+ if (led_cdev->flags & LED_BLINK_ONESHOT_STOP) {
+ led_cdev->flags &= ~LED_BLINK_ONESHOT_STOP;
+ return;
+ }
+
+ brightness = led_get_brightness(led_cdev);
+ if (!brightness) {
+ /* Time to switch the LED on. */
+ if (led_cdev->delayed_set_value) {
+ led_cdev->blink_brightness =
+ led_cdev->delayed_set_value;
+ led_cdev->delayed_set_value = 0;
+ }
+ brightness = led_cdev->blink_brightness;
+ delay = led_cdev->blink_delay_on;
+ } else {
+ /* Store the current brightness value to be able
+ * to restore it when the delay_off period is over.
+ */
+ led_cdev->blink_brightness = brightness;
+ brightness = LED_OFF;
+ delay = led_cdev->blink_delay_off;
+ }
+
+ led_set_brightness_async(led_cdev, brightness);
+
+ /* Return in next iteration if led is in one-shot mode and we are in
+ * the final blink state so that the led is toggled each delay_on +
+ * delay_off milliseconds in worst case.
+ */
+ if (led_cdev->flags & LED_BLINK_ONESHOT) {
+ if (led_cdev->flags & LED_BLINK_INVERT) {
+ if (brightness)
+ led_cdev->flags |= LED_BLINK_ONESHOT_STOP;
+ } else {
+ if (!brightness)
+ led_cdev->flags |= LED_BLINK_ONESHOT_STOP;
+ }
+ }
+
+ mod_timer(&led_cdev->blink_timer, jiffies + msecs_to_jiffies(delay));
+}
+
+static void set_brightness_delayed(struct work_struct *ws)
+{
+ struct led_classdev *led_cdev =
+ container_of(ws, struct led_classdev, set_brightness_work);
+
+ led_stop_software_blink(led_cdev);
+
+ led_set_brightness_async(led_cdev, led_cdev->delayed_set_value);
+}
+
static void led_set_software_blink(struct led_classdev *led_cdev,
unsigned long delay_on,
unsigned long delay_off)
@@ -72,6 +136,15 @@ static void led_blink_setup(struct led_classdev *led_cdev,
led_set_software_blink(led_cdev, *delay_on, *delay_off);
}
+void led_init_core(struct led_classdev *led_cdev)
+{
+ INIT_WORK(&led_cdev->set_brightness_work, set_brightness_delayed);
+
+ setup_timer(&led_cdev->blink_timer, led_timer_function,
+ (unsigned long)led_cdev);
+}
+EXPORT_SYMBOL_GPL(led_init_core);
+
void led_blink_set(struct led_classdev *led_cdev,
unsigned long *delay_on,
unsigned long *delay_off)
diff --git a/drivers/leds/leds-88pm860x.c b/drivers/leds/leds-88pm860x.c
index 1497a0916..7870840e7 100644
--- a/drivers/leds/leds-88pm860x.c
+++ b/drivers/leds/leds-88pm860x.c
@@ -142,6 +142,7 @@ static int pm860x_led_dt_init(struct platform_device *pdev,
of_property_read_u32(np, "marvell,88pm860x-iset",
&iset);
data->iset = PM8606_LED_CURRENT(iset);
+ of_node_put(np);
break;
}
}
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index 1793727bc..c7ea5c626 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -41,6 +41,11 @@
#define BCM6328_SERIAL_LED_SHIFT_DIR BIT(16)
#define BCM6328_LED_SHIFT_TEST BIT(30)
#define BCM6328_LED_TEST BIT(31)
+#define BCM6328_INIT_MASK (BCM6328_SERIAL_LED_EN | \
+ BCM6328_SERIAL_LED_MUX | \
+ BCM6328_SERIAL_LED_CLK_NPOL | \
+ BCM6328_SERIAL_LED_DATA_PPOL | \
+ BCM6328_SERIAL_LED_SHIFT_DIR)
#define BCM6328_LED_MODE_MASK 3
#define BCM6328_LED_MODE_OFF 0
@@ -281,11 +286,10 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
"linux,default-trigger",
NULL);
+ spin_lock_irqsave(lock, flags);
if (!of_property_read_string(nc, "default-state", &state)) {
- spin_lock_irqsave(lock, flags);
if (!strcmp(state, "on")) {
led->cdev.brightness = LED_FULL;
- bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
} else if (!strcmp(state, "keep")) {
void __iomem *mode;
unsigned long val, shift;
@@ -296,21 +300,28 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
else
mode = mem + BCM6328_REG_MODE_LO;
- val = bcm6328_led_read(mode) >> (shift % 16);
+ val = bcm6328_led_read(mode) >>
+ BCM6328_LED_SHIFT(shift % 16);
val &= BCM6328_LED_MODE_MASK;
- if (val == BCM6328_LED_MODE_ON)
+ if ((led->active_low && val == BCM6328_LED_MODE_ON) ||
+ (!led->active_low && val == BCM6328_LED_MODE_OFF))
led->cdev.brightness = LED_FULL;
- else {
+ else
led->cdev.brightness = LED_OFF;
- bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
- }
} else {
led->cdev.brightness = LED_OFF;
- bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
}
- spin_unlock_irqrestore(lock, flags);
+ } else {
+ led->cdev.brightness = LED_OFF;
}
+ if ((led->active_low && led->cdev.brightness == LED_FULL) ||
+ (!led->active_low && led->cdev.brightness == LED_OFF))
+ bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
+ else
+ bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
+ spin_unlock_irqrestore(lock, flags);
+
led->cdev.brightness_set = bcm6328_led_set;
led->cdev.blink_set = bcm6328_blink_set;
@@ -360,9 +371,17 @@ static int bcm6328_leds_probe(struct platform_device *pdev)
bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_LO, 0);
val = bcm6328_led_read(mem + BCM6328_REG_INIT);
- val &= ~BCM6328_SERIAL_LED_EN;
+ val &= ~(BCM6328_INIT_MASK);
if (of_property_read_bool(np, "brcm,serial-leds"))
val |= BCM6328_SERIAL_LED_EN;
+ if (of_property_read_bool(np, "brcm,serial-mux"))
+ val |= BCM6328_SERIAL_LED_MUX;
+ if (of_property_read_bool(np, "brcm,serial-clk-low"))
+ val |= BCM6328_SERIAL_LED_CLK_NPOL;
+ if (!of_property_read_bool(np, "brcm,serial-dat-low"))
+ val |= BCM6328_SERIAL_LED_DATA_PPOL;
+ if (!of_property_read_bool(np, "brcm,serial-shift-inv"))
+ val |= BCM6328_SERIAL_LED_SHIFT_DIR;
bcm6328_led_write(mem + BCM6328_REG_INIT, val);
for_each_available_child_of_node(np, child) {
@@ -373,7 +392,7 @@ static int bcm6328_leds_probe(struct platform_device *pdev)
continue;
if (reg >= BCM6328_LED_MAX_COUNT) {
- dev_err(dev, "invalid LED (>= %d)\n",
+ dev_err(dev, "invalid LED (%u >= %d)\n", reg,
BCM6328_LED_MAX_COUNT);
continue;
}
@@ -384,8 +403,10 @@ static int bcm6328_leds_probe(struct platform_device *pdev)
rc = bcm6328_led(dev, child, reg, mem, lock,
blink_leds, blink_delay);
- if (rc < 0)
+ if (rc < 0) {
+ of_node_put(child);
return rc;
+ }
}
return 0;
diff --git a/drivers/leds/leds-bcm6358.c b/drivers/leds/leds-bcm6358.c
index 7ea352670..82b4ee1bc 100644
--- a/drivers/leds/leds-bcm6358.c
+++ b/drivers/leds/leds-bcm6358.c
@@ -215,8 +215,10 @@ static int bcm6358_leds_probe(struct platform_device *pdev)
}
rc = bcm6358_led(dev, child, reg, mem, lock);
- if (rc < 0)
+ if (rc < 0) {
+ of_node_put(child);
return rc;
+ }
}
return 0;
diff --git a/drivers/leds/leds-cobalt-qube.c b/drivers/leds/leds-cobalt-qube.c
index d97522080..9be195707 100644
--- a/drivers/leds/leds-cobalt-qube.c
+++ b/drivers/leds/leds-cobalt-qube.c
@@ -36,7 +36,6 @@ static struct led_classdev qube_front_led = {
static int cobalt_qube_led_probe(struct platform_device *pdev)
{
struct resource *res;
- int retval;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
@@ -49,31 +48,11 @@ static int cobalt_qube_led_probe(struct platform_device *pdev)
led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;
writeb(led_value, led_port);
- retval = led_classdev_register(&pdev->dev, &qube_front_led);
- if (retval)
- goto err_null;
-
- return 0;
-
-err_null:
- led_port = NULL;
-
- return retval;
-}
-
-static int cobalt_qube_led_remove(struct platform_device *pdev)
-{
- led_classdev_unregister(&qube_front_led);
-
- if (led_port)
- led_port = NULL;
-
- return 0;
+ return devm_led_classdev_register(&pdev->dev, &qube_front_led);
}
static struct platform_driver cobalt_qube_led_driver = {
.probe = cobalt_qube_led_probe,
- .remove = cobalt_qube_led_remove,
.driver = {
.name = "cobalt-qube-leds",
},
diff --git a/drivers/leds/leds-dac124s085.c b/drivers/leds/leds-dac124s085.c
index db3ba8b42..314159610 100644
--- a/drivers/leds/leds-dac124s085.c
+++ b/drivers/leds/leds-dac124s085.c
@@ -122,7 +122,6 @@ static struct spi_driver dac124s085_driver = {
.remove = dac124s085_remove,
.driver = {
.name = "dac124s085",
- .owner = THIS_MODULE,
},
};
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index af1876a3a..5db4515a4 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -291,9 +291,22 @@ static int gpio_led_remove(struct platform_device *pdev)
return 0;
}
+static void gpio_led_shutdown(struct platform_device *pdev)
+{
+ struct gpio_leds_priv *priv = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < priv->num_leds; i++) {
+ struct gpio_led_data *led = &priv->leds[i];
+
+ gpio_led_set(&led->cdev, LED_OFF);
+ }
+}
+
static struct platform_driver gpio_led_driver = {
.probe = gpio_led_probe,
.remove = gpio_led_remove,
+ .shutdown = gpio_led_shutdown,
.driver = {
.name = "leds-gpio",
.of_match_table = of_gpio_leds_match,
diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c
index 0b84c0113..a6b8db0e2 100644
--- a/drivers/leds/leds-hp6xx.c
+++ b/drivers/leds/leds-hp6xx.c
@@ -59,28 +59,15 @@ static int hp6xxled_probe(struct platform_device *pdev)
{
int ret;
- ret = led_classdev_register(&pdev->dev, &hp6xx_red_led);
+ ret = devm_led_classdev_register(&pdev->dev, &hp6xx_red_led);
if (ret < 0)
return ret;
- ret = led_classdev_register(&pdev->dev, &hp6xx_green_led);
- if (ret < 0)
- led_classdev_unregister(&hp6xx_red_led);
-
- return ret;
-}
-
-static int hp6xxled_remove(struct platform_device *pdev)
-{
- led_classdev_unregister(&hp6xx_red_led);
- led_classdev_unregister(&hp6xx_green_led);
-
- return 0;
+ return devm_led_classdev_register(&pdev->dev, &hp6xx_green_led);
}
static struct platform_driver hp6xxled_driver = {
.probe = hp6xxled_probe,
- .remove = hp6xxled_remove,
.driver = {
.name = "hp6xx-led",
},
diff --git a/drivers/leds/leds-ipaq-micro.c b/drivers/leds/leds-ipaq-micro.c
index 3776f516c..fa262b6b2 100644
--- a/drivers/leds/leds-ipaq-micro.c
+++ b/drivers/leds/leds-ipaq-micro.c
@@ -16,9 +16,9 @@
#define LED_YELLOW 0x00
#define LED_GREEN 0x01
-#define LED_EN (1 << 4) /* LED ON/OFF 0:off, 1:on */
-#define LED_AUTOSTOP (1 << 5) /* LED ON/OFF auto stop set 0:disable, 1:enable */
-#define LED_ALWAYS (1 << 6) /* LED Interrupt Mask 0:No mask, 1:mask */
+#define LED_EN (1 << 4) /* LED ON/OFF 0:off, 1:on */
+#define LED_AUTOSTOP (1 << 5) /* LED ON/OFF auto stop set 0:disable, 1:enable */
+#define LED_ALWAYS (1 << 6) /* LED Interrupt Mask 0:No mask, 1:mask */
static void micro_leds_brightness_set(struct led_classdev *led_cdev,
enum led_brightness value)
@@ -79,14 +79,14 @@ static int micro_leds_blink_set(struct led_classdev *led_cdev,
};
msg.tx_data[0] = LED_GREEN;
- if (*delay_on > IPAQ_LED_MAX_DUTY ||
+ if (*delay_on > IPAQ_LED_MAX_DUTY ||
*delay_off > IPAQ_LED_MAX_DUTY)
- return -EINVAL;
+ return -EINVAL;
- if (*delay_on == 0 && *delay_off == 0) {
- *delay_on = 100;
- *delay_off = 100;
- }
+ if (*delay_on == 0 && *delay_off == 0) {
+ *delay_on = 100;
+ *delay_off = 100;
+ }
msg.tx_data[1] = 0;
if (*delay_on >= IPAQ_LED_MAX_DUTY)
@@ -111,7 +111,7 @@ static int micro_leds_probe(struct platform_device *pdev)
{
int ret;
- ret = led_classdev_register(&pdev->dev, &micro_led);
+ ret = devm_led_classdev_register(&pdev->dev, &micro_led);
if (ret) {
dev_err(&pdev->dev, "registering led failed: %d\n", ret);
return ret;
@@ -121,18 +121,11 @@ static int micro_leds_probe(struct platform_device *pdev)
return 0;
}
-static int micro_leds_remove(struct platform_device *pdev)
-{
- led_classdev_unregister(&micro_led);
- return 0;
-}
-
static struct platform_driver micro_leds_device_driver = {
.driver = {
.name = "ipaq-micro-leds",
},
.probe = micro_leds_probe,
- .remove = micro_leds_remove,
};
module_platform_driver(micro_leds_device_driver);
diff --git a/drivers/leds/leds-locomo.c b/drivers/leds/leds-locomo.c
index 80ba04888..24c4b53a6 100644
--- a/drivers/leds/leds-locomo.c
+++ b/drivers/leds/leds-locomo.c
@@ -59,23 +59,13 @@ static int locomoled_probe(struct locomo_dev *ldev)
{
int ret;
- ret = led_classdev_register(&ldev->dev, &locomo_led0);
+ ret = devm_led_classdev_register(&ldev->dev, &locomo_led0);
if (ret < 0)
return ret;
- ret = led_classdev_register(&ldev->dev, &locomo_led1);
- if (ret < 0)
- led_classdev_unregister(&locomo_led0);
-
- return ret;
+ return devm_led_classdev_register(&ldev->dev, &locomo_led1);
}
-static int locomoled_remove(struct locomo_dev *dev)
-{
- led_classdev_unregister(&locomo_led0);
- led_classdev_unregister(&locomo_led1);
- return 0;
-}
static struct locomo_driver locomoled_driver = {
.drv = {
@@ -83,7 +73,6 @@ static struct locomo_driver locomoled_driver = {
},
.devid = LOCOMO_DEVID_LED,
.probe = locomoled_probe,
- .remove = locomoled_remove,
};
static int __init locomoled_init(void)
diff --git a/drivers/leds/leds-menf21bmc.c b/drivers/leds/leds-menf21bmc.c
index 4b9eea815..dec2a6e59 100644
--- a/drivers/leds/leds-menf21bmc.c
+++ b/drivers/leds/leds-menf21bmc.c
@@ -87,36 +87,20 @@ static int menf21bmc_led_probe(struct platform_device *pdev)
leds[i].cdev.name = leds[i].name;
leds[i].cdev.brightness_set = menf21bmc_led_set;
leds[i].i2c_client = i2c_client;
- ret = led_classdev_register(&pdev->dev, &leds[i].cdev);
- if (ret < 0)
- goto err_free_leds;
+ ret = devm_led_classdev_register(&pdev->dev, &leds[i].cdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "failed to register LED device\n");
+ return ret;
+ }
}
dev_info(&pdev->dev, "MEN 140F21P00 BMC LED device enabled\n");
return 0;
-err_free_leds:
- dev_err(&pdev->dev, "failed to register LED device\n");
-
- for (i = i - 1; i >= 0; i--)
- led_classdev_unregister(&leds[i].cdev);
-
- return ret;
-}
-
-static int menf21bmc_led_remove(struct platform_device *pdev)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(leds); i++)
- led_classdev_unregister(&leds[i].cdev);
-
- return 0;
}
static struct platform_driver menf21bmc_led = {
.probe = menf21bmc_led_probe,
- .remove = menf21bmc_led_remove,
.driver = {
.name = "menf21bmc_led",
},
diff --git a/drivers/leds/leds-net48xx.c b/drivers/leds/leds-net48xx.c
index ec3a2e8ad..0d214c2e4 100644
--- a/drivers/leds/leds-net48xx.c
+++ b/drivers/leds/leds-net48xx.c
@@ -39,18 +39,11 @@ static struct led_classdev net48xx_error_led = {
static int net48xx_led_probe(struct platform_device *pdev)
{
- return led_classdev_register(&pdev->dev, &net48xx_error_led);
-}
-
-static int net48xx_led_remove(struct platform_device *pdev)
-{
- led_classdev_unregister(&net48xx_error_led);
- return 0;
+ return devm_led_classdev_register(&pdev->dev, &net48xx_error_led);
}
static struct platform_driver net48xx_led_driver = {
.probe = net48xx_led_probe,
- .remove = net48xx_led_remove,
.driver = {
.name = DRVNAME,
},
diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index 25e419752..4b88b9324 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -26,6 +26,7 @@
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/of_gpio.h>
#include <linux/leds.h>
#include <linux/platform_data/leds-kirkwood-netxbig.h>
@@ -70,7 +71,8 @@ static void gpio_ext_set_value(struct netxbig_gpio_ext *gpio_ext,
spin_unlock_irqrestore(&gpio_ext_lock, flags);
}
-static int gpio_ext_init(struct netxbig_gpio_ext *gpio_ext)
+static int gpio_ext_init(struct platform_device *pdev,
+ struct netxbig_gpio_ext *gpio_ext)
{
int err;
int i;
@@ -80,46 +82,28 @@ static int gpio_ext_init(struct netxbig_gpio_ext *gpio_ext)
/* Configure address GPIOs. */
for (i = 0; i < gpio_ext->num_addr; i++) {
- err = gpio_request_one(gpio_ext->addr[i], GPIOF_OUT_INIT_LOW,
- "GPIO extension addr");
+ err = devm_gpio_request_one(&pdev->dev, gpio_ext->addr[i],
+ GPIOF_OUT_INIT_LOW,
+ "GPIO extension addr");
if (err)
- goto err_free_addr;
+ return err;
}
/* Configure data GPIOs. */
for (i = 0; i < gpio_ext->num_data; i++) {
- err = gpio_request_one(gpio_ext->data[i], GPIOF_OUT_INIT_LOW,
- "GPIO extension data");
+ err = devm_gpio_request_one(&pdev->dev, gpio_ext->data[i],
+ GPIOF_OUT_INIT_LOW,
+ "GPIO extension data");
if (err)
- goto err_free_data;
+ return err;
}
/* Configure "enable select" GPIO. */
- err = gpio_request_one(gpio_ext->enable, GPIOF_OUT_INIT_LOW,
- "GPIO extension enable");
+ err = devm_gpio_request_one(&pdev->dev, gpio_ext->enable,
+ GPIOF_OUT_INIT_LOW,
+ "GPIO extension enable");
if (err)
- goto err_free_data;
+ return err;
return 0;
-
-err_free_data:
- for (i = i - 1; i >= 0; i--)
- gpio_free(gpio_ext->data[i]);
- i = gpio_ext->num_addr;
-err_free_addr:
- for (i = i - 1; i >= 0; i--)
- gpio_free(gpio_ext->addr[i]);
-
- return err;
-}
-
-static void gpio_ext_free(struct netxbig_gpio_ext *gpio_ext)
-{
- int i;
-
- gpio_free(gpio_ext->enable);
- for (i = gpio_ext->num_addr - 1; i >= 0; i--)
- gpio_free(gpio_ext->addr[i]);
- for (i = gpio_ext->num_data - 1; i >= 0; i--)
- gpio_free(gpio_ext->data[i]);
}
/*
@@ -132,7 +116,6 @@ struct netxbig_led_data {
int mode_addr;
int *mode_val;
int bright_addr;
- int bright_max;
struct netxbig_led_timer *timer;
int num_timer;
enum netxbig_led_mode mode;
@@ -194,7 +177,7 @@ static void netxbig_led_set(struct led_classdev *led_cdev,
struct netxbig_led_data *led_dat =
container_of(led_cdev, struct netxbig_led_data, cdev);
enum netxbig_led_mode mode;
- int mode_val, bright_val;
+ int mode_val;
int set_brightness = 1;
unsigned long flags;
@@ -220,12 +203,9 @@ static void netxbig_led_set(struct led_classdev *led_cdev,
* SATA LEDs. So, change the brightness setting for a single
* SATA LED will affect all the others.
*/
- if (set_brightness) {
- bright_val = DIV_ROUND_UP(value * led_dat->bright_max,
- LED_FULL);
+ if (set_brightness)
gpio_ext_set_value(led_dat->gpio_ext,
- led_dat->bright_addr, bright_val);
- }
+ led_dat->bright_addr, value);
spin_unlock_irqrestore(&led_dat->lock, flags);
}
@@ -299,18 +279,11 @@ static struct attribute *netxbig_led_attrs[] = {
};
ATTRIBUTE_GROUPS(netxbig_led);
-static void delete_netxbig_led(struct netxbig_led_data *led_dat)
+static int create_netxbig_led(struct platform_device *pdev,
+ struct netxbig_led_platform_data *pdata,
+ struct netxbig_led_data *led_dat,
+ const struct netxbig_led *template)
{
- led_classdev_unregister(&led_dat->cdev);
-}
-
-static int
-create_netxbig_led(struct platform_device *pdev,
- struct netxbig_led_data *led_dat,
- const struct netxbig_led *template)
-{
- struct netxbig_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
-
spin_lock_init(&led_dat->lock);
led_dat->gpio_ext = pdata->gpio_ext;
led_dat->cdev.name = template->name;
@@ -329,11 +302,11 @@ create_netxbig_led(struct platform_device *pdev,
*/
led_dat->sata = 0;
led_dat->cdev.brightness = LED_OFF;
+ led_dat->cdev.max_brightness = template->bright_max;
led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
led_dat->mode_addr = template->mode_addr;
led_dat->mode_val = template->mode_val;
led_dat->bright_addr = template->bright_addr;
- led_dat->bright_max = (1 << pdata->gpio_ext->num_data) - 1;
led_dat->timer = pdata->timer;
led_dat->num_timer = pdata->num_timer;
/*
@@ -343,67 +316,274 @@ create_netxbig_led(struct platform_device *pdev,
if (led_dat->mode_val[NETXBIG_LED_SATA] != NETXBIG_LED_INVALID_MODE)
led_dat->cdev.groups = netxbig_led_groups;
- return led_classdev_register(&pdev->dev, &led_dat->cdev);
+ return devm_led_classdev_register(&pdev->dev, &led_dat->cdev);
}
-static int netxbig_led_probe(struct platform_device *pdev)
+#ifdef CONFIG_OF_GPIO
+static int gpio_ext_get_of_pdata(struct device *dev, struct device_node *np,
+ struct netxbig_gpio_ext *gpio_ext)
{
- struct netxbig_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct netxbig_led_data *leds_data;
- int i;
+ int *addr, *data;
+ int num_addr, num_data;
int ret;
+ int i;
- if (!pdata)
- return -EINVAL;
-
- leds_data = devm_kzalloc(&pdev->dev,
- sizeof(struct netxbig_led_data) * pdata->num_leds, GFP_KERNEL);
- if (!leds_data)
+ ret = of_gpio_named_count(np, "addr-gpios");
+ if (ret < 0) {
+ dev_err(dev,
+ "Failed to count GPIOs in DT property addr-gpios\n");
+ return ret;
+ }
+ num_addr = ret;
+ addr = devm_kzalloc(dev, num_addr * sizeof(*addr), GFP_KERNEL);
+ if (!addr)
return -ENOMEM;
- ret = gpio_ext_init(pdata->gpio_ext);
- if (ret < 0)
+ for (i = 0; i < num_addr; i++) {
+ ret = of_get_named_gpio(np, "addr-gpios", i);
+ if (ret < 0)
+ return ret;
+ addr[i] = ret;
+ }
+ gpio_ext->addr = addr;
+ gpio_ext->num_addr = num_addr;
+
+ ret = of_gpio_named_count(np, "data-gpios");
+ if (ret < 0) {
+ dev_err(dev,
+ "Failed to count GPIOs in DT property data-gpios\n");
return ret;
+ }
+ num_data = ret;
+ data = devm_kzalloc(dev, num_data * sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- for (i = 0; i < pdata->num_leds; i++) {
- ret = create_netxbig_led(pdev, &leds_data[i], &pdata->leds[i]);
+ for (i = 0; i < num_data; i++) {
+ ret = of_get_named_gpio(np, "data-gpios", i);
if (ret < 0)
- goto err_free_leds;
+ return ret;
+ data[i] = ret;
}
+ gpio_ext->data = data;
+ gpio_ext->num_data = num_data;
- platform_set_drvdata(pdev, leds_data);
+ ret = of_get_named_gpio(np, "enable-gpio", 0);
+ if (ret < 0) {
+ dev_err(dev,
+ "Failed to get GPIO from DT property enable-gpio\n");
+ return ret;
+ }
+ gpio_ext->enable = ret;
return 0;
+}
+
+static int netxbig_leds_get_of_pdata(struct device *dev,
+ struct netxbig_led_platform_data *pdata)
+{
+ struct device_node *np = dev->of_node;
+ struct device_node *gpio_ext_np;
+ struct device_node *child;
+ struct netxbig_gpio_ext *gpio_ext;
+ struct netxbig_led_timer *timers;
+ struct netxbig_led *leds, *led;
+ int num_timers;
+ int num_leds = 0;
+ int ret;
+ int i;
-err_free_leds:
- for (i = i - 1; i >= 0; i--)
- delete_netxbig_led(&leds_data[i]);
+ /* GPIO extension */
+ gpio_ext_np = of_parse_phandle(np, "gpio-ext", 0);
+ if (!gpio_ext_np) {
+ dev_err(dev, "Failed to get DT handle gpio-ext\n");
+ return -EINVAL;
+ }
- gpio_ext_free(pdata->gpio_ext);
+ gpio_ext = devm_kzalloc(dev, sizeof(*gpio_ext), GFP_KERNEL);
+ if (!gpio_ext)
+ return -ENOMEM;
+ ret = gpio_ext_get_of_pdata(dev, gpio_ext_np, gpio_ext);
+ if (ret)
+ return ret;
+ of_node_put(gpio_ext_np);
+ pdata->gpio_ext = gpio_ext;
+
+ /* Timers (optional) */
+ ret = of_property_count_u32_elems(np, "timers");
+ if (ret > 0) {
+ if (ret % 3)
+ return -EINVAL;
+ num_timers = ret / 3;
+ timers = devm_kzalloc(dev, num_timers * sizeof(*timers),
+ GFP_KERNEL);
+ if (!timers)
+ return -ENOMEM;
+ for (i = 0; i < num_timers; i++) {
+ u32 tmp;
+
+ of_property_read_u32_index(np, "timers", 3 * i,
+ &timers[i].mode);
+ if (timers[i].mode >= NETXBIG_LED_MODE_NUM)
+ return -EINVAL;
+ of_property_read_u32_index(np, "timers",
+ 3 * i + 1, &tmp);
+ timers[i].delay_on = tmp;
+ of_property_read_u32_index(np, "timers",
+ 3 * i + 2, &tmp);
+ timers[i].delay_off = tmp;
+ }
+ pdata->timer = timers;
+ pdata->num_timer = num_timers;
+ }
+
+ /* LEDs */
+ num_leds = of_get_child_count(np);
+ if (!num_leds) {
+ dev_err(dev, "No LED subnodes found in DT\n");
+ return -ENODEV;
+ }
+
+ leds = devm_kzalloc(dev, num_leds * sizeof(*leds), GFP_KERNEL);
+ if (!leds)
+ return -ENOMEM;
+
+ led = leds;
+ for_each_child_of_node(np, child) {
+ const char *string;
+ int *mode_val;
+ int num_modes;
+
+ ret = of_property_read_u32(child, "mode-addr",
+ &led->mode_addr);
+ if (ret)
+ goto err_node_put;
+
+ ret = of_property_read_u32(child, "bright-addr",
+ &led->bright_addr);
+ if (ret)
+ goto err_node_put;
+
+ ret = of_property_read_u32(child, "max-brightness",
+ &led->bright_max);
+ if (ret)
+ goto err_node_put;
+
+ mode_val =
+ devm_kzalloc(dev,
+ NETXBIG_LED_MODE_NUM * sizeof(*mode_val),
+ GFP_KERNEL);
+ if (!mode_val) {
+ ret = -ENOMEM;
+ goto err_node_put;
+ }
+
+ for (i = 0; i < NETXBIG_LED_MODE_NUM; i++)
+ mode_val[i] = NETXBIG_LED_INVALID_MODE;
+
+ ret = of_property_count_u32_elems(child, "mode-val");
+ if (ret < 0 || ret % 2) {
+ ret = -EINVAL;
+ goto err_node_put;
+ }
+ num_modes = ret / 2;
+ if (num_modes > NETXBIG_LED_MODE_NUM) {
+ ret = -EINVAL;
+ goto err_node_put;
+ }
+
+ for (i = 0; i < num_modes; i++) {
+ int mode;
+ int val;
+
+ of_property_read_u32_index(child,
+ "mode-val", 2 * i, &mode);
+ of_property_read_u32_index(child,
+ "mode-val", 2 * i + 1, &val);
+ if (mode >= NETXBIG_LED_MODE_NUM) {
+ ret = -EINVAL;
+ goto err_node_put;
+ }
+ mode_val[mode] = val;
+ }
+ led->mode_val = mode_val;
+
+ if (!of_property_read_string(child, "label", &string))
+ led->name = string;
+ else
+ led->name = child->name;
+
+ if (!of_property_read_string(child,
+ "linux,default-trigger", &string))
+ led->default_trigger = string;
+
+ led++;
+ }
+
+ pdata->leds = leds;
+ pdata->num_leds = num_leds;
+
+ return 0;
+
+err_node_put:
+ of_node_put(child);
return ret;
}
-static int netxbig_led_remove(struct platform_device *pdev)
+static const struct of_device_id of_netxbig_leds_match[] = {
+ { .compatible = "lacie,netxbig-leds", },
+ {},
+};
+#else
+static inline int
+netxbig_leds_get_of_pdata(struct device *dev,
+ struct netxbig_led_platform_data *pdata)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_OF_GPIO */
+
+static int netxbig_led_probe(struct platform_device *pdev)
{
struct netxbig_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct netxbig_led_data *leds_data;
int i;
+ int ret;
- leds_data = platform_get_drvdata(pdev);
+ if (!pdata) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ ret = netxbig_leds_get_of_pdata(&pdev->dev, pdata);
+ if (ret)
+ return ret;
+ }
+
+ leds_data = devm_kzalloc(&pdev->dev,
+ pdata->num_leds * sizeof(*leds_data),
+ GFP_KERNEL);
+ if (!leds_data)
+ return -ENOMEM;
- for (i = 0; i < pdata->num_leds; i++)
- delete_netxbig_led(&leds_data[i]);
+ ret = gpio_ext_init(pdev, pdata->gpio_ext);
+ if (ret < 0)
+ return ret;
- gpio_ext_free(pdata->gpio_ext);
+ for (i = 0; i < pdata->num_leds; i++) {
+ ret = create_netxbig_led(pdev, pdata,
+ &leds_data[i], &pdata->leds[i]);
+ if (ret < 0)
+ return ret;
+ }
return 0;
}
static struct platform_driver netxbig_led_driver = {
.probe = netxbig_led_probe,
- .remove = netxbig_led_remove,
.driver = {
- .name = "leds-netxbig",
+ .name = "leds-netxbig",
+ .of_match_table = of_match_ptr(of_netxbig_leds_match),
},
};
diff --git a/drivers/leds/leds-ot200.c b/drivers/leds/leds-ot200.c
index 39870de20..12af1127d 100644
--- a/drivers/leds/leds-ot200.c
+++ b/drivers/leds/leds-ot200.c
@@ -124,9 +124,9 @@ static int ot200_led_probe(struct platform_device *pdev)
leds[i].cdev.name = leds[i].name;
leds[i].cdev.brightness_set = ot200_led_brightness_set;
- ret = led_classdev_register(&pdev->dev, &leds[i].cdev);
+ ret = devm_led_classdev_register(&pdev->dev, &leds[i].cdev);
if (ret < 0)
- goto err;
+ return ret;
}
leds_front = 0; /* turn off all front leds */
@@ -135,27 +135,10 @@ static int ot200_led_probe(struct platform_device *pdev)
outb(leds_back, 0x5a);
return 0;
-
-err:
- for (i = i - 1; i >= 0; i--)
- led_classdev_unregister(&leds[i].cdev);
-
- return ret;
-}
-
-static int ot200_led_remove(struct platform_device *pdev)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(leds); i++)
- led_classdev_unregister(&leds[i].cdev);
-
- return 0;
}
static struct platform_driver ot200_led_driver = {
.probe = ot200_led_probe,
- .remove = ot200_led_remove,
.driver = {
.name = "leds-ot200",
},
diff --git a/drivers/leds/leds-powernv.c b/drivers/leds/leds-powernv.c
index 2c5c5b12a..1e75e1fe9 100644
--- a/drivers/leds/leds-powernv.c
+++ b/drivers/leds/leds-powernv.c
@@ -262,15 +262,19 @@ static int powernv_led_classdev(struct platform_device *pdev,
while ((cur = of_prop_next_string(p, cur)) != NULL) {
powernv_led = devm_kzalloc(dev, sizeof(*powernv_led),
GFP_KERNEL);
- if (!powernv_led)
+ if (!powernv_led) {
+ of_node_put(np);
return -ENOMEM;
+ }
powernv_led->common = powernv_led_common;
powernv_led->loc_code = (char *)np->name;
rc = powernv_led_create(dev, powernv_led, cur);
- if (rc)
+ if (rc) {
+ of_node_put(np);
return rc;
+ }
} /* while end */
}
diff --git a/drivers/leds/leds-sead3.c b/drivers/leds/leds-sead3.c
new file mode 100644
index 000000000..eb97a3271
--- /dev/null
+++ b/drivers/leds/leds-sead3.c
@@ -0,0 +1,78 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) 2015 Imagination Technologies, Inc.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <asm/mips-boards/sead3-addr.h>
+
+static void sead3_pled_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ writel(value, (void __iomem *)SEAD3_CPLD_P_LED);
+}
+
+static void sead3_fled_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ writel(value, (void __iomem *)SEAD3_CPLD_F_LED);
+}
+
+static struct led_classdev sead3_pled = {
+ .name = "sead3::pled",
+ .brightness_set = sead3_pled_set,
+ .flags = LED_CORE_SUSPENDRESUME,
+};
+
+static struct led_classdev sead3_fled = {
+ .name = "sead3::fled",
+ .brightness_set = sead3_fled_set,
+ .flags = LED_CORE_SUSPENDRESUME,
+};
+
+static int sead3_led_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = led_classdev_register(&pdev->dev, &sead3_pled);
+ if (ret < 0)
+ return ret;
+
+ ret = led_classdev_register(&pdev->dev, &sead3_fled);
+ if (ret < 0)
+ led_classdev_unregister(&sead3_pled);
+
+ return ret;
+}
+
+static int sead3_led_remove(struct platform_device *pdev)
+{
+ led_classdev_unregister(&sead3_pled);
+ led_classdev_unregister(&sead3_fled);
+
+ return 0;
+}
+
+static struct platform_driver sead3_led_driver = {
+ .probe = sead3_led_probe,
+ .remove = sead3_led_remove,
+ .driver = {
+ .name = "sead3-led",
+ },
+};
+
+module_platform_driver(sead3_led_driver);
+
+MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>");
+MODULE_DESCRIPTION("SEAD3 LED driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-wrap.c b/drivers/leds/leds-wrap.c
index 1ba3defdd..473fb6b97 100644
--- a/drivers/leds/leds-wrap.c
+++ b/drivers/leds/leds-wrap.c
@@ -76,39 +76,19 @@ static int wrap_led_probe(struct platform_device *pdev)
{
int ret;
- ret = led_classdev_register(&pdev->dev, &wrap_power_led);
+ ret = devm_led_classdev_register(&pdev->dev, &wrap_power_led);
if (ret < 0)
return ret;
- ret = led_classdev_register(&pdev->dev, &wrap_error_led);
+ ret = devm_led_classdev_register(&pdev->dev, &wrap_error_led);
if (ret < 0)
- goto err1;
-
- ret = led_classdev_register(&pdev->dev, &wrap_extra_led);
- if (ret < 0)
- goto err2;
-
- return ret;
-
-err2:
- led_classdev_unregister(&wrap_error_led);
-err1:
- led_classdev_unregister(&wrap_power_led);
-
- return ret;
-}
+ return ret;
-static int wrap_led_remove(struct platform_device *pdev)
-{
- led_classdev_unregister(&wrap_power_led);
- led_classdev_unregister(&wrap_error_led);
- led_classdev_unregister(&wrap_extra_led);
- return 0;
+ return devm_led_classdev_register(&pdev->dev, &wrap_extra_led);
}
static struct platform_driver wrap_led_driver = {
.probe = wrap_led_probe,
- .remove = wrap_led_remove,
.driver = {
.name = DRVNAME,
},
diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h
index bc89d7ace..4238fbc31 100644
--- a/drivers/leds/leds.h
+++ b/drivers/leds/leds.h
@@ -44,6 +44,7 @@ static inline int led_get_brightness(struct led_classdev *led_cdev)
return led_cdev->brightness;
}
+void led_init_core(struct led_classdev *led_cdev);
void led_stop_software_blink(struct led_classdev *led_cdev);
extern struct rw_semaphore leds_list_lock;
diff --git a/drivers/leds/trigger/ledtrig-heartbeat.c b/drivers/leds/trigger/ledtrig-heartbeat.c
index fea6871d2..8622ce651 100644
--- a/drivers/leds/trigger/ledtrig-heartbeat.c
+++ b/drivers/leds/trigger/ledtrig-heartbeat.c
@@ -27,6 +27,7 @@ struct heartbeat_trig_data {
unsigned int phase;
unsigned int period;
struct timer_list timer;
+ unsigned int invert;
};
static void led_heartbeat_function(unsigned long data)
@@ -56,21 +57,27 @@ static void led_heartbeat_function(unsigned long data)
msecs_to_jiffies(heartbeat_data->period);
delay = msecs_to_jiffies(70);
heartbeat_data->phase++;
- brightness = led_cdev->max_brightness;
+ if (!heartbeat_data->invert)
+ brightness = led_cdev->max_brightness;
break;
case 1:
delay = heartbeat_data->period / 4 - msecs_to_jiffies(70);
heartbeat_data->phase++;
+ if (heartbeat_data->invert)
+ brightness = led_cdev->max_brightness;
break;
case 2:
delay = msecs_to_jiffies(70);
heartbeat_data->phase++;
- brightness = led_cdev->max_brightness;
+ if (!heartbeat_data->invert)
+ brightness = led_cdev->max_brightness;
break;
default:
delay = heartbeat_data->period - heartbeat_data->period / 4 -
msecs_to_jiffies(70);
heartbeat_data->phase = 0;
+ if (heartbeat_data->invert)
+ brightness = led_cdev->max_brightness;
break;
}
@@ -78,15 +85,50 @@ static void led_heartbeat_function(unsigned long data)
mod_timer(&heartbeat_data->timer, jiffies + delay);
}
+static ssize_t led_invert_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct heartbeat_trig_data *heartbeat_data = led_cdev->trigger_data;
+
+ return sprintf(buf, "%u\n", heartbeat_data->invert);
+}
+
+static ssize_t led_invert_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct heartbeat_trig_data *heartbeat_data = led_cdev->trigger_data;
+ unsigned long state;
+ int ret;
+
+ ret = kstrtoul(buf, 0, &state);
+ if (ret)
+ return ret;
+
+ heartbeat_data->invert = !!state;
+
+ return size;
+}
+
+static DEVICE_ATTR(invert, 0644, led_invert_show, led_invert_store);
+
static void heartbeat_trig_activate(struct led_classdev *led_cdev)
{
struct heartbeat_trig_data *heartbeat_data;
+ int rc;
heartbeat_data = kzalloc(sizeof(*heartbeat_data), GFP_KERNEL);
if (!heartbeat_data)
return;
led_cdev->trigger_data = heartbeat_data;
+ rc = device_create_file(led_cdev->dev, &dev_attr_invert);
+ if (rc) {
+ kfree(led_cdev->trigger_data);
+ return;
+ }
+
setup_timer(&heartbeat_data->timer,
led_heartbeat_function, (unsigned long) led_cdev);
heartbeat_data->phase = 0;
@@ -100,6 +142,7 @@ static void heartbeat_trig_deactivate(struct led_classdev *led_cdev)
if (led_cdev->activated) {
del_timer_sync(&heartbeat_data->timer);
+ device_remove_file(led_cdev->dev, &dev_attr_invert);
kfree(heartbeat_data);
led_cdev->activated = false;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-17 15:13:11 +0000