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Groups > linux.kernel > #1186620

[PATCH/RFC 29/51] leds: wm8350: Remove work queue

From Jacek Anaszewski <j.anaszewski@samsung.com>
Newsgroups linux.kernel
Subject [PATCH/RFC 29/51] leds: wm8350: Remove work queue
Date 2015-07-17 11:10 +0200
Message-ID <pN9OA-X0-53@gated-at.bofh.it> (permalink)
References <pN9vb-kw-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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: Mark Brown <broonie@kernel.org>
---
 drivers/leds/leds-wm8350.c      |   31 ++++++-------------------------
 include/linux/mfd/wm8350/pmic.h |    1 -
 2 files changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c
index 0d12183..149579a 100644
--- a/drivers/leds/leds-wm8350.c
+++ b/drivers/leds/leds-wm8350.c
@@ -138,21 +138,22 @@ static void wm8350_led_disable(struct wm8350_led *led)
 	led->enabled = 0;
 }
 
-static void led_work(struct work_struct *work)
+static void wm8350_led_set(struct led_classdev *led_cdev,
+			   enum led_brightness value)
 {
-	struct wm8350_led *led = container_of(work, struct wm8350_led, work);
+	struct wm8350_led *led = to_wm8350_led(led_cdev);
+	unsigned long flags;
 	int ret;
 	int uA;
-	unsigned long flags;
 
-	mutex_lock(&led->mutex);
+	led->value = value;
 
 	spin_lock_irqsave(&led->value_lock, flags);
 
 	if (led->value == LED_OFF) {
 		spin_unlock_irqrestore(&led->value_lock, flags);
 		wm8350_led_disable(led);
-		goto out;
+		return;
 	}
 
 	/* This scales linearly into the index of valid current
@@ -171,31 +172,14 @@ static void led_work(struct work_struct *work)
 			isink_cur[uA], ret);
 
 	wm8350_led_enable(led);
-
-out:
-	mutex_unlock(&led->mutex);
-}
-
-static void wm8350_led_set(struct led_classdev *led_cdev,
-			   enum led_brightness value)
-{
-	struct wm8350_led *led = to_wm8350_led(led_cdev);
-	unsigned long flags;
-
-	spin_lock_irqsave(&led->value_lock, flags);
-	led->value = value;
-	schedule_work(&led->work);
-	spin_unlock_irqrestore(&led->value_lock, flags);
 }
 
 static void wm8350_led_shutdown(struct platform_device *pdev)
 {
 	struct wm8350_led *led = platform_get_drvdata(pdev);
 
-	mutex_lock(&led->mutex);
 	led->value = LED_OFF;
 	wm8350_led_disable(led);
-	mutex_unlock(&led->mutex);
 }
 
 static int wm8350_led_probe(struct platform_device *pdev)
@@ -251,8 +235,6 @@ static int wm8350_led_probe(struct platform_device *pdev)
 			 pdata->max_uA);
 
 	spin_lock_init(&led->value_lock);
-	mutex_init(&led->mutex);
-	INIT_WORK(&led->work, led_work);
 	led->value = LED_OFF;
 	platform_set_drvdata(pdev, led);
 
@@ -264,7 +246,6 @@ static int wm8350_led_remove(struct platform_device *pdev)
 	struct wm8350_led *led = platform_get_drvdata(pdev);
 
 	led_classdev_unregister(&led->cdev);
-	flush_work(&led->work);
 	wm8350_led_disable(led);
 	return 0;
 }
diff --git a/include/linux/mfd/wm8350/pmic.h b/include/linux/mfd/wm8350/pmic.h
index 579b50c..7a09e7f 100644
--- a/include/linux/mfd/wm8350/pmic.h
+++ b/include/linux/mfd/wm8350/pmic.h
@@ -715,7 +715,6 @@ struct wm8350_led_platform_data {
 
 struct wm8350_led {
 	struct platform_device *pdev;
-	struct mutex mutex;
 	struct work_struct work;
 	spinlock_t value_lock;
 	enum led_brightness value;
-- 
1.7.9.5

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[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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