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Groups > linux.kernel > #1186612

[PATCH/RFC 16/51] leds: lp55xx: Remove work queue

From Jacek Anaszewski <j.anaszewski@samsung.com>
Newsgroups linux.kernel
Subject [PATCH/RFC 16/51] leds: lp55xx: Remove work queue
Date 2015-07-17 11:10 +0200
Message-ID <pN9Oz-X0-29@gated-at.bofh.it> (permalink)
References <pN9vb-kw-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Andrew Lunn <andrew@lunn.ch>

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

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Cc: Milo Kim <milo.kim@ti.com>
---
 drivers/leds/leds-lp5521.c        |    6 ++----
 drivers/leds/leds-lp5523.c        |    6 ++----
 drivers/leds/leds-lp5562.c        |    6 ++----
 drivers/leds/leds-lp55xx-common.c |    8 +++-----
 drivers/leds/leds-lp55xx-common.h |    6 ++----
 drivers/leds/leds-lp8501.c        |    6 ++----
 6 files changed, 13 insertions(+), 25 deletions(-)

diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index 8ca197a..9893f7b 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -362,10 +362,8 @@ static int lp5521_run_selftest(struct lp55xx_chip *chip, char *buf)
 	return 0;
 }
 
-static void lp5521_led_brightness_work(struct work_struct *work)
+static void lp5521_led_brightness(struct lp55xx_led *led)
 {
-	struct lp55xx_led *led = container_of(work, struct lp55xx_led,
-					      brightness_work);
 	struct lp55xx_chip *chip = led->chip;
 
 	mutex_lock(&chip->lock);
@@ -501,7 +499,7 @@ static struct lp55xx_device_config lp5521_cfg = {
 	},
 	.max_channel  = LP5521_MAX_LEDS,
 	.post_init_device   = lp5521_post_init_device,
-	.brightness_work_fn = lp5521_led_brightness_work,
+	.brightness_fn      = lp5521_led_brightness,
 	.set_led_current    = lp5521_set_led_current,
 	.firmware_cb        = lp5521_firmware_loaded,
 	.run_engine         = lp5521_run_engine,
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 584dbbc..35d58ac 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -802,10 +802,8 @@ leave:
 	return ret;
 }
 
-static void lp5523_led_brightness_work(struct work_struct *work)
+static void lp5523_led_brightness(struct lp55xx_led *led)
 {
-	struct lp55xx_led *led = container_of(work, struct lp55xx_led,
-					      brightness_work);
 	struct lp55xx_chip *chip = led->chip;
 
 	mutex_lock(&chip->lock);
@@ -867,7 +865,7 @@ static struct lp55xx_device_config lp5523_cfg = {
 	},
 	.max_channel  = LP5523_MAX_LEDS,
 	.post_init_device   = lp5523_post_init_device,
-	.brightness_work_fn = lp5523_led_brightness_work,
+	.brightness_fn      = lp5523_led_brightness,
 	.set_led_current    = lp5523_set_led_current,
 	.firmware_cb        = lp5523_firmware_loaded,
 	.run_engine         = lp5523_run_engine,
diff --git a/drivers/leds/leds-lp5562.c b/drivers/leds/leds-lp5562.c
index ca85724..0c0487b 100644
--- a/drivers/leds/leds-lp5562.c
+++ b/drivers/leds/leds-lp5562.c
@@ -311,10 +311,8 @@ static int lp5562_post_init_device(struct lp55xx_chip *chip)
 	return 0;
 }
 
-static void lp5562_led_brightness_work(struct work_struct *work)
+static void lp5562_led_brightness(struct lp55xx_led *led)
 {
-	struct lp55xx_led *led = container_of(work, struct lp55xx_led,
-					      brightness_work);
 	struct lp55xx_chip *chip = led->chip;
 	u8 addr[] = {
 		LP5562_REG_R_PWM,
@@ -503,7 +501,7 @@ static struct lp55xx_device_config lp5562_cfg = {
 	},
 	.post_init_device   = lp5562_post_init_device,
 	.set_led_current    = lp5562_set_led_current,
-	.brightness_work_fn = lp5562_led_brightness_work,
+	.brightness_fn      = lp5562_led_brightness,
 	.run_engine         = lp5562_run_engine,
 	.firmware_cb        = lp5562_firmware_loaded,
 	.dev_attr_group     = &lp5562_group,
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 96d51e9..b5c38d4 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -138,9 +138,10 @@ static void lp55xx_set_brightness(struct led_classdev *cdev,
 			     enum led_brightness brightness)
 {
 	struct lp55xx_led *led = cdev_to_lp55xx_led(cdev);
+	struct lp55xx_device_config *cfg = led->chip->cfg;
 
 	led->brightness = (u8)brightness;
-	schedule_work(&led->brightness_work);
+	cfg->brightness_fn(led);
 }
 
 static int lp55xx_init_led(struct lp55xx_led *led,
@@ -464,7 +465,7 @@ int lp55xx_register_leds(struct lp55xx_led *led, struct lp55xx_chip *chip)
 	int ret;
 	int i;
 
-	if (!cfg->brightness_work_fn) {
+	if (!cfg->brightness_fn) {
 		dev_err(&chip->cl->dev, "empty brightness configuration\n");
 		return -EINVAL;
 	}
@@ -481,8 +482,6 @@ int lp55xx_register_leds(struct lp55xx_led *led, struct lp55xx_chip *chip)
 		if (ret)
 			goto err_init_led;
 
-		INIT_WORK(&each->brightness_work, cfg->brightness_work_fn);
-
 		chip->num_leds++;
 		each->chip = chip;
 
@@ -507,7 +506,6 @@ void lp55xx_unregister_leds(struct lp55xx_led *led, struct lp55xx_chip *chip)
 	for (i = 0; i < chip->num_leds; i++) {
 		each = led + i;
 		led_classdev_unregister(&each->cdev);
-		flush_work(&each->brightness_work);
 	}
 }
 EXPORT_SYMBOL_GPL(lp55xx_unregister_leds);
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index cceab48..0a045d0 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -95,7 +95,7 @@ struct lp55xx_reg {
  * @enable             : Chip specific enable command
  * @max_channel        : Maximum number of channels
  * @post_init_device   : Chip specific initialization code
- * @brightness_work_fn : Brightness work function
+ * @brightness_fn      : Brightness function
  * @set_led_current    : LED current set function
  * @firmware_cb        : Call function when the firmware is loaded
  * @run_engine         : Run internal engine for pattern
@@ -110,7 +110,7 @@ struct lp55xx_device_config {
 	int (*post_init_device) (struct lp55xx_chip *chip);
 
 	/* access brightness register */
-	void (*brightness_work_fn)(struct work_struct *work);
+	void (*brightness_fn)(struct lp55xx_led *led);
 
 	/* current setting function */
 	void (*set_led_current) (struct lp55xx_led *led, u8 led_current);
@@ -164,7 +164,6 @@ struct lp55xx_chip {
  * @cdev            : LED class device
  * @led_current     : Current setting at each led channel
  * @max_current     : Maximun current at each led channel
- * @brightness_work : Workqueue for brightness control
  * @brightness      : Brightness value
  * @chip            : The lp55xx chip data
  */
@@ -173,7 +172,6 @@ struct lp55xx_led {
 	struct led_classdev cdev;
 	u8 led_current;
 	u8 max_current;
-	struct work_struct brightness_work;
 	u8 brightness;
 	struct lp55xx_chip *chip;
 };
diff --git a/drivers/leds/leds-lp8501.c b/drivers/leds/leds-lp8501.c
index d3098e3..753ce15 100644
--- a/drivers/leds/leds-lp8501.c
+++ b/drivers/leds/leds-lp8501.c
@@ -272,10 +272,8 @@ static void lp8501_firmware_loaded(struct lp55xx_chip *chip)
 	lp8501_update_program_memory(chip, fw->data, fw->size);
 }
 
-static void lp8501_led_brightness_work(struct work_struct *work)
+static void lp8501_led_brightness(struct lp55xx_led *led)
 {
-	struct lp55xx_led *led = container_of(work, struct lp55xx_led,
-					      brightness_work);
 	struct lp55xx_chip *chip = led->chip;
 
 	mutex_lock(&chip->lock);
@@ -296,7 +294,7 @@ static struct lp55xx_device_config lp8501_cfg = {
 	},
 	.max_channel  = LP8501_MAX_LEDS,
 	.post_init_device   = lp8501_post_init_device,
-	.brightness_work_fn = lp8501_led_brightness_work,
+	.brightness_fn      = lp8501_led_brightness,
 	.set_led_current    = lp8501_set_led_current,
 	.firmware_cb        = lp8501_firmware_loaded,
 	.run_engine         = lp8501_run_engine,
-- 
1.7.9.5

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Thread

[PATCH/RFC v4 00/51] Remove work queues from LED class drivers Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 10:50 +0200
  [PATCH/RFC 32/51] leds: gpio: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 10:50 +0200
  [PATCH/RFC 10/51] leds: bd2802: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 10:50 +0200
  [PATCH/RFC 27/51] leds: mc13783: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 10:50 +0200
  [PATCH/RFC 39/51] leds: ss4200: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 10:50 +0200
  [PATCH/RFC 04/51] leds: Improve setting brightness in a non sleeping  way Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 10:50 +0200
  [PATCH/RFC 44/51] leds: cobalt-qube: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 47/51] leds: locomo: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 42/51] leds: net48xx: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 45/51] leds: fsg: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 48/51] leds: dell: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 37/51] leds: ot200: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 33/51] leds: cobalt-raq: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 49/51] leds: rb532: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 50/51] leds: sunfire: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 38/51] leds: s3c24xx: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 35/51] leds: bcm6358: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 46/51] leds: hp6xx: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 34/51] leds: bcm6328: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 41/51] leds: wrap: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 43/51] leds: asic3: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
  [PATCH/RFC 40/51] leds: versatile: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
    Re: [PATCH/RFC 40/51] leds: versatile: Mark the LED fast Linus Walleij <linus.walleij@linaro.org> - 2015-07-17 15:50 +0200
  [PATCH/RFC 51/51] leds: ipaq-micro: Mark the LED fast Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:00 +0200
    Re: [PATCH/RFC 51/51] leds: ipaq-micro: Mark the LED fast Linus Walleij <linus.walleij@linaro.org> - 2015-07-17 15:50 +0200
  [PATCH/RFC 23/51] leds: da9052: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 20/51] leds: pca963x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 25/51] leds: lt3593: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 26/51] leds: max8997: Remove unneeded workqueue include Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 18/51] leds: lp8860: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
    Re: [PATCH/RFC 18/51] leds: lp8860: Remove work queue Dan Murphy <dmurphy@ti.com> - 2015-07-17 16:00 +0200
  [PATCH/RFC 19/51] leds: pca955x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 28/51] leds: regulator: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 15/51] leds: lp3944: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 21/51] leds: wm831x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
    Re: [PATCH/RFC 21/51] leds: wm831x: Remove work queue Mark Brown <broonie@kernel.org> - 2015-07-17 12:10 +0200
  [PATCH/RFC 16/51] leds: lp55xx: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 13/51] leds: lm3642: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 17/51] leds: lp8788: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 31/51] leds: lm355x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
  [PATCH/RFC 29/51] leds: wm8350: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:10 +0200
    Re: [PATCH/RFC 29/51] leds: wm8350: Remove work queue Mark Brown <broonie@kernel.org> - 2015-07-17 12:10 +0200
  [PATCH/RFC 06/51] media: flash: use led_set_brightness_sync for torch  brightness Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:20 +0200
  [PATCH/RFC 03/51] leds: Add an internal led_set_brightness_nosleep  function Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:20 +0200
  [PATCH/RFC 07/51] leds: tlc591xx: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:20 +0200
  [PATCH/RFC 12/51] leds: lm3533: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:20 +0200
    Re: [PATCH/RFC 12/51] leds: lm3533: Remove work queue Johan Hovold <johan@kernel.org> - 2015-07-17 11:30 +0200
  [PATCH/RFC 01/51] leds: Add led_set_brightness_sync to the public LED  subsystem API Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:20 +0200
    Re: [PATCH/RFC 01/51] leds: Add led_set_brightness_sync to the  public LED subsystem API Pavel Machek <pavel@ucw.cz> - 2015-07-22 09:30 +0200
  [PATCH/RFC 11/51] leds: blinkm: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:20 +0200
  [PATCH/RFC 05/51] leds: Drivers shouldn't enforce SYNC/ASYNC  brightness setting Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-07-17 11:20 +0200

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