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leds: aat1290: 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: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Jacek Anaszewski 2015-10-07 11:10:46 +02:00
parent 7edc00d09d
commit 269e92da8b
1 changed files with 13 additions and 37 deletions
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50
drivers/leds/leds-aat1290.c
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@ -20,7 +20,6 @@
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <media/v4l2-flash-led-class.h>
#define AAT1290_MOVIE_MODE_CURRENT_ADDR 17
@ -82,8 +81,6 @@ struct aat1290_led {
/* brightness cache */
unsigned int torch_brightness;
/* assures led-triggers compatibility */
struct work_struct work_brightness_set;
};
static struct aat1290_led *fled_cdev_to_led(
@ -92,6 +89,12 @@ static struct aat1290_led *fled_cdev_to_led(
return container_of(fled_cdev, struct aat1290_led, fled_cdev);
}
static struct led_classdev_flash *led_cdev_to_fled_cdev(
struct led_classdev *led_cdev)
{
return container_of(led_cdev, struct led_classdev_flash, led_cdev);
}
static void aat1290_as2cwire_write(struct aat1290_led *led, int addr, int value)
{
int i;
@ -134,9 +137,14 @@ static void aat1290_set_flash_safety_timer(struct aat1290_led *led,
flash_tm_reg);
}
static void aat1290_brightness_set(struct aat1290_led *led,
/* LED subsystem callbacks */
static int aat1290_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct led_classdev_flash *fled_cdev = led_cdev_to_fled_cdev(led_cdev);
struct aat1290_led *led = fled_cdev_to_led(fled_cdev);
mutex_lock(&led->lock);
if (brightness == 0) {
@ -158,35 +166,6 @@ static void aat1290_brightness_set(struct aat1290_led *led,
}
mutex_unlock(&led->lock);
}
/* LED subsystem callbacks */
static void aat1290_brightness_set_work(struct work_struct *work)
{
struct aat1290_led *led =
container_of(work, struct aat1290_led, work_brightness_set);
aat1290_brightness_set(led, led->torch_brightness);
}
static void aat1290_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(led_cdev);
struct aat1290_led *led = fled_cdev_to_led(fled_cdev);
led->torch_brightness = brightness;
schedule_work(&led->work_brightness_set);
}
static int aat1290_led_brightness_set_sync(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(led_cdev);
struct aat1290_led *led = fled_cdev_to_led(fled_cdev);
aat1290_brightness_set(led, brightness);
return 0;
}
@ -509,11 +488,9 @@ static int aat1290_led_probe(struct platform_device *pdev)
mutex_init(&led->lock);
/* Initialize LED Flash class device */
led_cdev->brightness_set = aat1290_led_brightness_set;
led_cdev->brightness_set_blocking = aat1290_led_brightness_set_sync;
led_cdev->brightness_set_blocking = aat1290_led_brightness_set;
led_cdev->max_brightness = led_cfg.max_brightness;
led_cdev->flags |= LED_DEV_CAP_FLASH;
INIT_WORK(&led->work_brightness_set, aat1290_brightness_set_work);
aat1290_init_flash_timeout(led, &led_cfg);
@ -548,7 +525,6 @@ static int aat1290_led_remove(struct platform_device *pdev)
v4l2_flash_release(led->v4l2_flash);
led_classdev_flash_unregister(&led->fled_cdev);
cancel_work_sync(&led->work_brightness_set);
mutex_destroy(&led->lock);