[PATCH/RFC v5 10/57] leds: max77693: Remove work queue

From: Jacek Anaszewski
Date: Tue Aug 11 2015 - 05:38:58 EST


Now the core implements the work queue, remove it from the drivers.

Signed-off-by: Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx>
Cc: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Cc: Bryan Wu <cooloney@xxxxxxxxx>
---
drivers/leds/leds-max77693.c | 45 ++++++++----------------------------------
1 file changed, 8 insertions(+), 37 deletions(-)

diff --git a/drivers/leds/leds-max77693.c b/drivers/leds/leds-max77693.c
index 856d929..cc4146a 100644
--- a/drivers/leds/leds-max77693.c
+++ b/drivers/leds/leds-max77693.c
@@ -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 void 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);

@@ -494,32 +495,6 @@ 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 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(
@@ -926,9 +901,7 @@ static void max77693_init_fled_cdev(struct max77693_sub_led *sub_led,
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);
+ led_cdev->flags |= LED_DEV_CAP_FLASH | LED_BRIGHTNESS_BLOCKING;

max77693_init_flash_settings(sub_led, led_cfg);

@@ -1050,13 +1023,11 @@ 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);
--
1.7.9.5

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