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leds: da9052: Remove work queue 

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>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
This commit is contained in:
Andrew Lunn 2015-08-20 12:45:23 +02:00 committed by Jacek Anaszewski
parent 803bb384ba
commit 0a1f01d385
1 changed files with 12 additions and 27 deletions
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39
drivers/leds/leds-da9052.c
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@ -16,7 +16,6 @@
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/workqueue.h>
#include <linux/slab.h>
#include <linux/mfd/da9052/reg.h>
@ -32,11 +31,9 @@
struct da9052_led {
struct led_classdev cdev;
struct work_struct work;
struct da9052 *da9052;
unsigned char led_index;
unsigned char id;
int brightness;
};
static unsigned char led_reg[] = {
@ -44,12 +41,13 @@ static unsigned char led_reg[] = {
DA9052_LED_CONT_5_REG,
};
static int da9052_set_led_brightness(struct da9052_led *led)
static int da9052_set_led_brightness(struct da9052_led *led,
enum led_brightness brightness)
{
u8 val;
int error;
val = (led->brightness & 0x7f) | DA9052_LED_CONT_DIM;
val = (brightness & 0x7f) | DA9052_LED_CONT_DIM;
error = da9052_reg_write(led->da9052, led_reg[led->led_index], val);
if (error < 0)
@ -58,21 +56,13 @@ static int da9052_set_led_brightness(struct da9052_led *led)
return error;
}
static void da9052_led_work(struct work_struct *work)
{
struct da9052_led *led = container_of(work, struct da9052_led, work);
da9052_set_led_brightness(led);
}
static void da9052_led_set(struct led_classdev *led_cdev,
static int da9052_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct da9052_led *led;
struct da9052_led *led =
container_of(led_cdev, struct da9052_led, cdev);
led = container_of(led_cdev, struct da9052_led, cdev);
led->brightness = value;
schedule_work(&led->work);
return da9052_set_led_brightness(led, value);
}
static int da9052_configure_leds(struct da9052 *da9052)
@ -133,13 +123,11 @@ static int da9052_led_probe(struct platform_device *pdev)
for (i = 0; i < pled->num_leds; i++) {
led[i].cdev.name = pled->leds[i].name;
led[i].cdev.brightness_set = da9052_led_set;
led[i].cdev.brightness_set_blocking = da9052_led_set;
led[i].cdev.brightness = LED_OFF;
led[i].cdev.max_brightness = DA9052_MAX_BRIGHTNESS;
led[i].brightness = LED_OFF;
led[i].led_index = pled->leds[i].flags;
led[i].da9052 = dev_get_drvdata(pdev->dev.parent);
INIT_WORK(&led[i].work, da9052_led_work);
error = led_classdev_register(pdev->dev.parent, &led[i].cdev);
if (error) {
@ -148,7 +136,8 @@ static int da9052_led_probe(struct platform_device *pdev)
goto err_register;
}
error = da9052_set_led_brightness(&led[i]);
error = da9052_set_led_brightness(&led[i],
led[i].cdev.brightness);
if (error) {
dev_err(&pdev->dev, "Unable to init led %d\n",
led[i].led_index);
@ -166,10 +155,8 @@ static int da9052_led_probe(struct platform_device *pdev)
return 0;
err_register:
for (i = i - 1; i >= 0; i--) {
for (i = i - 1; i >= 0; i--)
led_classdev_unregister(&led[i].cdev);
cancel_work_sync(&led[i].work);
}
err:
return error;
}
@ -187,10 +174,8 @@ static int da9052_led_remove(struct platform_device *pdev)
pled = pdata->pled;
for (i = 0; i < pled->num_leds; i++) {
led[i].brightness = 0;
da9052_set_led_brightness(&led[i]);
da9052_set_led_brightness(&led[i], LED_OFF);
led_classdev_unregister(&led[i].cdev);
cancel_work_sync(&led[i].work);
}
return 0;