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leds: max77693: 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: 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 11:10:45 +02:00
parent 648da8ff48
commit 7edc00d09d
1 changed files with 9 additions and 48 deletions
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57
drivers/leds/leds-max77693.c
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@ -20,7 +20,6 @@
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <media/v4l2-flash-led-class.h>
#define MODE_OFF 0
@ -62,8 +61,6 @@ struct max77693_sub_led {
int fled_id;
/* corresponding LED Flash class device */
struct led_classdev_flash fled_cdev;
/* assures led-triggers compatibility */
struct work_struct work_brightness_set;
/* V4L2 Flash device */
struct v4l2_flash *v4l2_flash;
@ -463,10 +460,14 @@ static int max77693_setup(struct max77693_led_device *led,
return max77693_set_mode_reg(led, MODE_OFF);
}
static int __max77693_led_brightness_set(struct max77693_led_device *led,
int fled_id, enum led_brightness value)
/* LED subsystem callbacks */
static int max77693_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
int ret;
struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(led_cdev);
struct max77693_sub_led *sub_led = flcdev_to_sub_led(fled_cdev);
struct max77693_led_device *led = sub_led_to_led(sub_led);
int fled_id = sub_led->fled_id, ret;
mutex_lock(&led->lock);
@ -494,45 +495,10 @@ static int __max77693_led_brightness_set(struct max77693_led_device *led,
ret);
unlock:
mutex_unlock(&led->lock);
return ret;
}
static void max77693_led_brightness_set_work(
struct work_struct *work)
{
struct max77693_sub_led *sub_led =
container_of(work, struct max77693_sub_led,
work_brightness_set);
struct max77693_led_device *led = sub_led_to_led(sub_led);
__max77693_led_brightness_set(led, sub_led->fled_id,
sub_led->torch_brightness);
}
/* LED subsystem callbacks */
static int max77693_led_brightness_set_sync(
struct led_classdev *led_cdev,
enum led_brightness value)
{
struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(led_cdev);
struct max77693_sub_led *sub_led = flcdev_to_sub_led(fled_cdev);
struct max77693_led_device *led = sub_led_to_led(sub_led);
return __max77693_led_brightness_set(led, sub_led->fled_id, value);
}
static void max77693_led_brightness_set(
struct led_classdev *led_cdev,
enum led_brightness value)
{
struct led_classdev_flash *fled_cdev = lcdev_to_flcdev(led_cdev);
struct max77693_sub_led *sub_led = flcdev_to_sub_led(fled_cdev);
sub_led->torch_brightness = value;
schedule_work(&sub_led->work_brightness_set);
}
static int max77693_led_flash_brightness_set(
struct led_classdev_flash *fled_cdev,
u32 brightness)
@ -931,16 +897,13 @@ static void max77693_init_fled_cdev(struct max77693_sub_led *sub_led,
led_cdev->name = led_cfg->label[fled_id];
led_cdev->brightness_set = max77693_led_brightness_set;
led_cdev->brightness_set_blocking = max77693_led_brightness_set_sync;
led_cdev->brightness_set_blocking = max77693_led_brightness_set;
led_cdev->max_brightness = (led->iout_joint ?
led_cfg->iout_torch_max[FLED1] +
led_cfg->iout_torch_max[FLED2] :
led_cfg->iout_torch_max[fled_id]) /
TORCH_IOUT_STEP;
led_cdev->flags |= LED_DEV_CAP_FLASH;
INIT_WORK(&sub_led->work_brightness_set,
max77693_led_brightness_set_work);
max77693_init_flash_settings(sub_led, led_cfg);
@ -1062,13 +1025,11 @@ static int max77693_led_remove(struct platform_device *pdev)
if (led->iout_joint || max77693_fled_used(led, FLED1)) {
v4l2_flash_release(sub_leds[FLED1].v4l2_flash);
led_classdev_flash_unregister(&sub_leds[FLED1].fled_cdev);
cancel_work_sync(&sub_leds[FLED1].work_brightness_set);
}
if (!led->iout_joint && max77693_fled_used(led, FLED2)) {
v4l2_flash_release(sub_leds[FLED2].v4l2_flash);
led_classdev_flash_unregister(&sub_leds[FLED2].fled_cdev);
cancel_work_sync(&sub_leds[FLED2].work_brightness_set);
}
mutex_destroy(&led->lock);