On Thu, 20 Aug 2015 16:43:49 +0200
Jacek Anaszewski <j.anaszew...@samsung.com> wrote:
> From: Andrew Lunn <and...@lunn.ch>
>
> Now the core implements the work queue, remove it from the driver,
> and switch to using brightness_set_blocking op.
>
> Signed-off-by: Andrew Lunn <and...@lunn.ch>
> Cc: Antonio Ospite <osp...@studenti.unina.it>
> Signed-off-by: Jacek Anaszewski <j.anaszew...@samsung.com>
>
Acked-by: Antonio Ospite <a...@ao2.it>
> ---
> drivers/leds/leds-lp3944.c | 32 ++++++++------------------------
> 1 file changed, 8 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/leds/leds-lp3944.c b/drivers/leds/leds-lp3944.c
> index 53144fb..6c758ae 100644
> --- a/drivers/leds/leds-lp3944.c
> +++ b/drivers/leds/leds-lp3944.c
> @@ -31,7 +31,6 @@
> #include <linux/slab.h>
> #include <linux/leds.h>
> #include <linux/mutex.h>
> -#include <linux/workqueue.h>
> #include <linux/leds-lp3944.h>
>
> /* Read Only Registers */
> @@ -68,10 +67,8 @@
> struct lp3944_led_data {
> u8 id;
> enum lp3944_type type;
> - enum lp3944_status status;
> struct led_classdev ldev;
> struct i2c_client *client;
> - struct work_struct work;
> };
>
> struct lp3944_data {
> @@ -275,13 +272,12 @@ static int lp3944_led_set_blink(struct led_classdev
> *led_cdev,
> dev_dbg(&led->client->dev, "%s: OK hardware accelerated blink!\n",
> __func__);
>
> - led->status = LP3944_LED_STATUS_DIM0;
> - schedule_work(&led->work);
> + lp3944_led_set(led, LP3944_LED_STATUS_DIM0);
>
> return 0;
> }
>
> -static void lp3944_led_set_brightness(struct led_classdev *led_cdev,
> +static int lp3944_led_set_brightness(struct led_classdev *led_cdev,
> enum led_brightness brightness)
> {
> struct lp3944_led_data *led = ldev_to_led(led_cdev);
> @@ -289,16 +285,7 @@ static void lp3944_led_set_brightness(struct
> led_classdev *led_cdev,
> dev_dbg(&led->client->dev, "%s: %s, %d\n",
> __func__, led_cdev->name, brightness);
>
> - led->status = !!brightness;
> - schedule_work(&led->work);
> -}
> -
> -static void lp3944_led_work(struct work_struct *work)
> -{
> - struct lp3944_led_data *led;
> -
> - led = container_of(work, struct lp3944_led_data, work);
> - lp3944_led_set(led, led->status);
> + return lp3944_led_set(led, !!brightness);
> }
>
> static int lp3944_configure(struct i2c_client *client,
> @@ -318,14 +305,13 @@ static int lp3944_configure(struct i2c_client *client,
> case LP3944_LED_TYPE_LED:
> case LP3944_LED_TYPE_LED_INVERTED:
> led->type = pled->type;
> - led->status = pled->status;
> led->ldev.name = pled->name;
> led->ldev.max_brightness = 1;
> - led->ldev.brightness_set = lp3944_led_set_brightness;
> + led->ldev.brightness_set_blocking =
> + lp3944_led_set_brightness;
> led->ldev.blink_set = lp3944_led_set_blink;
> led->ldev.flags = LED_CORE_SUSPENDRESUME;
>
> - INIT_WORK(&led->work, lp3944_led_work);
> err = led_classdev_register(&client->dev, &led->ldev);
> if (err < 0) {
> dev_err(&client->dev,
> @@ -336,14 +322,14 @@ static int lp3944_configure(struct i2c_client *client,
>
> /* to expose the default value to userspace */
> led->ldev.brightness =
> - (enum led_brightness) led->status;
> + (enum led_brightness) pled->status;
>
> /* Set the default led status */
> - err = lp3944_led_set(led, led->status);
> + err = lp3944_led_set(led, pled->status);
> if (err < 0) {
> dev_err(&client->dev,
> "%s couldn't set STATUS %d\n",
> - led->ldev.name, led->status);
> + led->ldev.name, pled->status);
> goto exit;
> }
> break;
> @@ -364,7 +350,6 @@ exit:
> case LP3944_LED_TYPE_LED:
> case LP3944_LED_TYPE_LED_INVERTED:
> led_classdev_unregister(&data->leds[i].ldev);
> - cancel_work_sync(&data->leds[i].work);
> break;
>
> case LP3944_LED_TYPE_NONE:
> @@ -424,7 +409,6 @@ static int lp3944_remove(struct i2c_client *client)
> case LP3944_LED_TYPE_LED:
> case LP3944_LED_TYPE_LED_INVERTED:
> led_classdev_unregister(&data->leds[i].ldev);
> - cancel_work_sync(&data->leds[i].work);
> break;
>
> case LP3944_LED_TYPE_NONE:
> --
> 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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