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leds: wm8350: Remove work queue 

Now the core implements the work queue, remove it from the drivers,
and switch to using brightness_set_blocking op.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Antonio Ospite <ao2@ao2.it>
Reviewed-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andrew Lunn 2015-08-20 12:59:45 +02:00 committed by Jacek Anaszewski
parent 77e8503638
commit 0dd756f767
2 changed files with 25 additions and 40 deletions
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64
drivers/leds/leds-wm8350.c
View File

@ -89,40 +89,42 @@ static const int isink_cur[] = {
#define to_wm8350_led(led_cdev) \
container_of(led_cdev, struct wm8350_led, cdev)
static void wm8350_led_enable(struct wm8350_led *led)
static int wm8350_led_enable(struct wm8350_led *led)
{
int ret;
int ret = 0;
if (led->enabled)
return;
return ret;
ret = regulator_enable(led->isink);
if (ret != 0) {
dev_err(led->cdev.dev, "Failed to enable ISINK: %d\n", ret);
return;
return ret;
}
ret = regulator_enable(led->dcdc);
if (ret != 0) {
dev_err(led->cdev.dev, "Failed to enable DCDC: %d\n", ret);
regulator_disable(led->isink);
return;
return ret;
}
led->enabled = 1;
return ret;
}
static void wm8350_led_disable(struct wm8350_led *led)
static int wm8350_led_disable(struct wm8350_led *led)
{
int ret;
int ret = 0;
if (!led->enabled)
return;
return ret;
ret = regulator_disable(led->dcdc);
if (ret != 0) {
dev_err(led->cdev.dev, "Failed to disable DCDC: %d\n", ret);
return;
return ret;
}
ret = regulator_disable(led->isink);
@ -132,27 +134,29 @@ static void wm8350_led_disable(struct wm8350_led *led)
if (ret != 0)
dev_err(led->cdev.dev, "Failed to reenable DCDC: %d\n",
ret);
return;
return ret;
}
led->enabled = 0;
return ret;
}
static void led_work(struct work_struct *work)
static int wm8350_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct wm8350_led *led = container_of(work, struct wm8350_led, work);
struct wm8350_led *led = to_wm8350_led(led_cdev);
unsigned long flags;
int ret;
int uA;
unsigned long flags;
mutex_lock(&led->mutex);
led->value = value;
spin_lock_irqsave(&led->value_lock, flags);
if (led->value == LED_OFF) {
spin_unlock_irqrestore(&led->value_lock, flags);
wm8350_led_disable(led);
goto out;
return wm8350_led_disable(led);
}
/* This scales linearly into the index of valid current
@ -166,36 +170,21 @@ static void led_work(struct work_struct *work)
ret = regulator_set_current_limit(led->isink, isink_cur[uA],
isink_cur[uA]);
if (ret != 0)
if (ret != 0) {
dev_err(led->cdev.dev, "Failed to set %duA: %d\n",
isink_cur[uA], ret);
return ret;
}
wm8350_led_enable(led);
out:
mutex_unlock(&led->mutex);
}
static void wm8350_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct wm8350_led *led = to_wm8350_led(led_cdev);
unsigned long flags;
spin_lock_irqsave(&led->value_lock, flags);
led->value = value;
schedule_work(&led->work);
spin_unlock_irqrestore(&led->value_lock, flags);
return wm8350_led_enable(led);
}
static void wm8350_led_shutdown(struct platform_device *pdev)
{
struct wm8350_led *led = platform_get_drvdata(pdev);
mutex_lock(&led->mutex);
led->value = LED_OFF;
wm8350_led_disable(led);
mutex_unlock(&led->mutex);
}
static int wm8350_led_probe(struct platform_device *pdev)
@ -232,7 +221,7 @@ static int wm8350_led_probe(struct platform_device *pdev)
if (led == NULL)
return -ENOMEM;
led->cdev.brightness_set = wm8350_led_set;
led->cdev.brightness_set_blocking = wm8350_led_set;
led->cdev.default_trigger = pdata->default_trigger;
led->cdev.name = pdata->name;
led->cdev.flags |= LED_CORE_SUSPENDRESUME;
@ -251,8 +240,6 @@ static int wm8350_led_probe(struct platform_device *pdev)
pdata->max_uA);
spin_lock_init(&led->value_lock);
mutex_init(&led->mutex);
INIT_WORK(&led->work, led_work);
led->value = LED_OFF;
platform_set_drvdata(pdev, led);
@ -264,7 +251,6 @@ static int wm8350_led_remove(struct platform_device *pdev)
struct wm8350_led *led = platform_get_drvdata(pdev);
led_classdev_unregister(&led->cdev);
flush_work(&led->work);
wm8350_led_disable(led);
return 0;
}

1
include/linux/mfd/wm8350/pmic.h
View File

@ -715,7 +715,6 @@ struct wm8350_led_platform_data {
struct wm8350_led {
struct platform_device *pdev;
struct mutex mutex;
struct work_struct work;
spinlock_t value_lock;
enum led_brightness value;