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leds: ns2: 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: Jacek Anaszewski <j.anaszewski@samsung.com>
Tested-by: Simon Guinot <simon.guinot@sequanux.org>
This commit is contained in:
Jacek Anaszewski 2015-11-20 11:39:41 +01:00
parent 49651c6c66
commit c29e650b3a
1 changed files with 13 additions and 18 deletions
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31
drivers/leds/leds-ns2.c
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@ -45,24 +45,12 @@ struct ns2_led_data {
unsigned cmd;
unsigned slow;
bool can_sleep;
int mode_index;
unsigned char sata; /* True when SATA mode active. */
rwlock_t rw_lock; /* Lock GPIOs. */
struct work_struct work;
int num_modes;
struct ns2_led_modval *modval;
};
static void ns2_led_work(struct work_struct *work)
{
struct ns2_led_data *led_dat =
container_of(work, struct ns2_led_data, work);
int i = led_dat->mode_index;
gpio_set_value_cansleep(led_dat->cmd, led_dat->modval[i].cmd_level);
gpio_set_value_cansleep(led_dat->slow, led_dat->modval[i].slow_level);
}
static int ns2_led_get_mode(struct ns2_led_data *led_dat,
enum ns2_led_modes *mode)
{
@ -112,8 +100,8 @@ static void ns2_led_set_mode(struct ns2_led_data *led_dat,
goto exit_unlock;
}
led_dat->mode_index = i;
schedule_work(&led_dat->work);
gpio_set_value_cansleep(led_dat->cmd, led_dat->modval[i].cmd_level);
gpio_set_value_cansleep(led_dat->slow, led_dat->modval[i].slow_level);
exit_unlock:
write_unlock_irqrestore(&led_dat->rw_lock, flags);
@ -136,6 +124,13 @@ static void ns2_led_set(struct led_classdev *led_cdev,
ns2_led_set_mode(led_dat, mode);
}
static int ns2_led_set_blocking(struct led_classdev *led_cdev,
enum led_brightness value)
{
ns2_led_set(led_cdev, value);
return 0;
}
static ssize_t ns2_led_sata_store(struct device *dev,
struct device_attribute *attr,
const char *buff, size_t count)
@ -219,13 +214,16 @@ create_ns2_led(struct platform_device *pdev, struct ns2_led_data *led_dat,
led_dat->cdev.name = template->name;
led_dat->cdev.default_trigger = template->default_trigger;
led_dat->cdev.blink_set = NULL;
led_dat->cdev.brightness_set = ns2_led_set;
led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
led_dat->cdev.groups = ns2_led_groups;
led_dat->cmd = template->cmd;
led_dat->slow = template->slow;
led_dat->can_sleep = gpio_cansleep(led_dat->cmd) |
gpio_cansleep(led_dat->slow);
if (led_dat->can_sleep)
led_dat->cdev.brightness_set_blocking = ns2_led_set_blocking;
else
led_dat->cdev.brightness_set = ns2_led_set;
led_dat->modval = template->modval;
led_dat->num_modes = template->num_modes;
@ -238,8 +236,6 @@ create_ns2_led(struct platform_device *pdev, struct ns2_led_data *led_dat,
led_dat->cdev.brightness =
(mode == NS_V2_LED_OFF) ? LED_OFF : LED_FULL;
INIT_WORK(&led_dat->work, ns2_led_work);
ret = led_classdev_register(&pdev->dev, &led_dat->cdev);
if (ret < 0)
return ret;
@ -250,7 +246,6 @@ create_ns2_led(struct platform_device *pdev, struct ns2_led_data *led_dat,
static void delete_ns2_led(struct ns2_led_data *led_dat)
{
led_classdev_unregister(&led_dat->cdev);
cancel_work_sync(&led_dat->work);
}
#ifdef CONFIG_OF_GPIO