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leds: wm831x: Remove work queue

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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>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
This commit is contained in:
Andrew Lunn 2015-08-20 12:40:45 +02:00 committed by Jacek Anaszewski
parent 5029a2e336
commit f633a512e8
1 changed files with 9 additions and 16 deletions
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25
drivers/leds/leds-wm831x-status.c
View file

@ -23,7 +23,6 @@
struct wm831x_status {
struct led_classdev cdev;
struct wm831x *wm831x;
struct work_struct work;
struct mutex mutex;
spinlock_t value_lock;
@ -40,10 +39,8 @@ struct wm831x_status {
#define to_wm831x_status(led_cdev) \
container_of(led_cdev, struct wm831x_status, cdev)
static void wm831x_status_work(struct work_struct *work)
static void wm831x_status_set(struct wm831x_status *led)
{
struct wm831x_status *led = container_of(work, struct wm831x_status,
work);
unsigned long flags;
mutex_lock(&led->mutex);
@ -70,8 +67,8 @@ static void wm831x_status_work(struct work_struct *work)
mutex_unlock(&led->mutex);
}
static void wm831x_status_set(struct led_classdev *led_cdev,
enum led_brightness value)
static int wm831x_status_brightness_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct wm831x_status *led = to_wm831x_status(led_cdev);
unsigned long flags;
@ -80,8 +77,10 @@ static void wm831x_status_set(struct led_classdev *led_cdev,
led->brightness = value;
if (value == LED_OFF)
led->blink = 0;
schedule_work(&led->work);
spin_unlock_irqrestore(&led->value_lock, flags);
wm831x_status_set(led);
return 0;
}
static int wm831x_status_blink_set(struct led_classdev *led_cdev,
@ -147,11 +146,8 @@ static int wm831x_status_blink_set(struct led_classdev *led_cdev,
else
led->blink = 0;
/* Always update; if we fail turn off blinking since we expect
* a software fallback. */
schedule_work(&led->work);
spin_unlock_irqrestore(&led->value_lock, flags);
wm831x_status_set(led);
return ret;
}
@ -206,11 +202,9 @@ static ssize_t wm831x_status_src_store(struct device *dev,
for (i = 0; i < ARRAY_SIZE(led_src_texts); i++) {
if (!strcmp(name, led_src_texts[i])) {
mutex_lock(&led->mutex);
led->src = i;
schedule_work(&led->work);
mutex_unlock(&led->mutex);
wm831x_status_set(led);
}
}
@ -262,7 +256,6 @@ static int wm831x_status_probe(struct platform_device *pdev)
pdata.name = dev_name(&pdev->dev);
mutex_init(&drvdata->mutex);
INIT_WORK(&drvdata->work, wm831x_status_work);
spin_lock_init(&drvdata->value_lock);
/* We cache the configuration register and read startup values
@ -287,7 +280,7 @@ static int wm831x_status_probe(struct platform_device *pdev)
drvdata->cdev.name = pdata.name;
drvdata->cdev.default_trigger = pdata.default_trigger;
drvdata->cdev.brightness_set = wm831x_status_set;
drvdata->cdev.brightness_set_blocking = wm831x_status_brightness_set;
drvdata->cdev.blink_set = wm831x_status_blink_set;
drvdata->cdev.groups = wm831x_status_groups;