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Groups > linux.kernel > #1210979
| From | Antonio Ospite <ao2@ao2.it> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH/RFC v6 32/36] leds: regulator: Remove work queue |
| Date | 2015-08-21 09:50 +0200 |
| Message-ID | <pZPfl-5Az-29@gated-at.bofh.it> (permalink) |
| References | <pZzkd-7Tp-3@gated-at.bofh.it> <pZzkg-7Tp-83@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, 20 Aug 2015 16:44:02 +0200
Jacek Anaszewski <j.anaszewski@samsung.com> wrote:
> From: Andrew Lunn <andrew@lunn.ch>
>
> Now the core implements the work queue, remove it from the drivers,
> and switch to using brightness_set_blocking op.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
> Cc: Antonio Ospite <ospite@studenti.unina.it>
> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
>
Acked-by: Antonio Ospite <ao2@ao2.it>
> ---
> drivers/leds/leds-regulator.c | 46 +++++++++++------------------------------
> 1 file changed, 12 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/leds/leds-regulator.c b/drivers/leds/leds-regulator.c
> index ffc2139..acf77ca 100644
> --- a/drivers/leds/leds-regulator.c
> +++ b/drivers/leds/leds-regulator.c
> @@ -14,7 +14,6 @@
> #include <linux/module.h>
> #include <linux/err.h>
> #include <linux/slab.h>
> -#include <linux/workqueue.h>
> #include <linux/leds.h>
> #include <linux/leds-regulator.h>
> #include <linux/platform_device.h>
> @@ -25,10 +24,8 @@
>
> struct regulator_led {
> struct led_classdev cdev;
> - enum led_brightness value;
> int enabled;
> struct mutex mutex;
> - struct work_struct work;
>
> struct regulator *vcc;
> };
> @@ -94,22 +91,24 @@ static void regulator_led_disable(struct regulator_led *led)
> led->enabled = 0;
> }
>
> -static void regulator_led_set_value(struct regulator_led *led)
> +static int regulator_led_brightness_set(struct led_classdev *led_cdev,
> + enum led_brightness value)
> {
> + struct regulator_led *led = to_regulator_led(led_cdev);
> int voltage;
> - int ret;
> + int ret = 0;
>
> mutex_lock(&led->mutex);
>
> - if (led->value == LED_OFF) {
> + if (value == LED_OFF) {
> regulator_led_disable(led);
> goto out;
> }
>
> if (led->cdev.max_brightness > 1) {
> - voltage = led_regulator_get_voltage(led->vcc, led->value);
> + voltage = led_regulator_get_voltage(led->vcc, value);
> dev_dbg(led->cdev.dev, "brightness: %d voltage: %d\n",
> - led->value, voltage);
> + value, voltage);
>
> ret = regulator_set_voltage(led->vcc, voltage, voltage);
> if (ret != 0)
> @@ -121,23 +120,7 @@ static void regulator_led_set_value(struct regulator_led *led)
>
> out:
> mutex_unlock(&led->mutex);
> -}
> -
> -static void led_work(struct work_struct *work)
> -{
> - struct regulator_led *led;
> -
> - led = container_of(work, struct regulator_led, work);
> - regulator_led_set_value(led);
> -}
> -
> -static void regulator_led_brightness_set(struct led_classdev *led_cdev,
> - enum led_brightness value)
> -{
> - struct regulator_led *led = to_regulator_led(led_cdev);
> -
> - led->value = value;
> - schedule_work(&led->work);
> + return ret;
> }
>
> static int regulator_led_probe(struct platform_device *pdev)
> @@ -169,9 +152,8 @@ static int regulator_led_probe(struct platform_device *pdev)
> pdata->brightness);
> return -EINVAL;
> }
> - led->value = pdata->brightness;
>
> - led->cdev.brightness_set = regulator_led_brightness_set;
> + led->cdev.brightness_set_blocking = regulator_led_brightness_set;
> led->cdev.name = pdata->name;
> led->cdev.flags |= LED_CORE_SUSPENDRESUME;
> led->vcc = vcc;
> @@ -181,21 +163,18 @@ static int regulator_led_probe(struct platform_device *pdev)
> led->enabled = 1;
>
> mutex_init(&led->mutex);
> - INIT_WORK(&led->work, led_work);
>
> platform_set_drvdata(pdev, led);
>
> ret = led_classdev_register(&pdev->dev, &led->cdev);
> - if (ret < 0) {
> - cancel_work_sync(&led->work);
> + if (ret < 0)
> return ret;
> - }
>
> /* to expose the default value to userspace */
> - led->cdev.brightness = led->value;
> + led->cdev.brightness = pdata->brightness;
>
> /* Set the default led status */
> - regulator_led_set_value(led);
> + regulator_led_brightness_set(&led->cdev, led->cdev.brightness);
>
> return 0;
> }
> @@ -205,7 +184,6 @@ static int regulator_led_remove(struct platform_device *pdev)
> struct regulator_led *led = platform_get_drvdata(pdev);
>
> led_classdev_unregister(&led->cdev);
> - cancel_work_sync(&led->work);
> regulator_led_disable(led);
> return 0;
> }
> --
> 1.7.9.5
>
--
Antonio Ospite
http://ao2.it
A: Because it messes up the order in which people normally read text.
See http://en.wikipedia.org/wiki/Posting_style
Q: Why is top-posting such a bad thing?
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[PATCH/RFC v6 00/36] Remove work queues from LED class drivers Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 31/36] leds: mc13783: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 14/36] leds: bd2802: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 07/36] Documentation: leds: Add description of brightness_set* ops Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 02/36] leds: Add led_set_brightness_sync to the public LED subsystem API Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
Re: [PATCH/RFC v6 02/36] leds: Add led_set_brightness_sync to the public LED subsystem API Andrew Lunn <andrew@lunn.ch> - 2015-08-20 18:00 +0200
[PATCH/RFC v6 27/36] leds: da9052: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 01/36] leds: Add brightness_set_blocking op Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
Re: [PATCH/RFC v6 01/36] leds: Add brightness_set_blocking op Andrew Lunn <andrew@lunn.ch> - 2015-08-20 17:30 +0200
Re: [PATCH/RFC v6 01/36] leds: Add brightness_set_blocking op Pavel Machek <pavel@ucw.cz> - 2015-08-24 13:50 +0200
[PATCH/RFC v6 17/36] leds: lm3642: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 06/36] leds: Drivers shouldn't enforce SYNC/ASYNC brightness setting Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 34/36] leds: gpio: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 09/36] leds: aat1290: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 03/36] leds: Improve asynchronous path of setting brightness Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 16/36] leds: lm3533: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 36/36] leds: lm355x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 08/36] leds: ktd2692: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 33/36] leds: wm8350: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 18/36] leds: pca9532: Remove work queue for LEDs. Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 13/36] leds: adp5520: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 05/36] leds: Improve setting brightness in a non sleeping way Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
Re: [PATCH/RFC v6 05/36] leds: Improve setting brightness in a non sleeping way Andrew Lunn <andrew@lunn.ch> - 2015-08-20 18:20 +0200
Re: [PATCH/RFC v6 05/36] leds: Improve setting brightness in a non sleeping way Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-21 11:30 +0200
Re: [PATCH/RFC v6 05/36] leds: Improve setting brightness in a non sleeping way Andrew Lunn <andrew@lunn.ch> - 2015-08-21 20:00 +0200
Re: [PATCH/RFC v6 05/36] leds: Improve setting brightness in a non sleeping way Jacek Anaszewski <jacek.anaszewski@gmail.com> - 2015-08-21 22:40 +0200
Re: [PATCH/RFC v6 05/36] leds: Improve setting brightness in a non sleeping way Andrew Lunn <andrew@lunn.ch> - 2015-08-21 22:50 +0200
Re: [PATCH/RFC v6 05/36] leds: Improve setting brightness in a non sleeping way Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-24 10:20 +0200
[PATCH/RFC v6 12/36] leds: 88pm860x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 21/36] leds: lp8788: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 29/36] leds: lt3593: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 30/36] leds: max8997: Remove unneeded workqueue include Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 10/36] leds: max77693: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 15/36] leds: blinkm: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 22/36] leds: lp8860: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 11/36] leds: tlc591xx: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 32/36] leds: regulator: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
Re: [PATCH/RFC v6 32/36] leds: regulator: Remove work queue Antonio Ospite <ao2@ao2.it> - 2015-08-21 09:50 +0200
[PATCH/RFC v6 19/36] leds: lp3944: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
Re: [PATCH/RFC v6 19/36] leds: lp3944: Remove work queue Antonio Ospite <ao2@ao2.it> - 2015-08-21 09:50 +0200
[PATCH/RFC v6 20/36] leds: lp55xx: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 04/36] leds: Add an internal led_set_brightness_nosleep function Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 35/36] leds: pwm: remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 16:50 +0200
[PATCH/RFC v6 28/36] leds: dac124d085: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 17:00 +0200
[PATCH/RFC v6 25/36] leds: wm831x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 17:00 +0200
[PATCH/RFC v6 26/36] leds: da903x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 17:00 +0200
[PATCH/RFC v6 24/36] leds: pca963x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 17:00 +0200
[PATCH/RFC v6 23/36] leds: pca955x: Remove work queue Jacek Anaszewski <j.anaszewski@samsung.com> - 2015-08-20 17:00 +0200
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