void ktd2026_set_brightness(struct led_classdev *cdev,
enum led_brightness brightness)
{
struct ktd2026_led *led = cdev_to_led(cdev);
led->brightness = (u8)brightness;
schedule_work(&led->brightness_work);
}
static ssize_t led_delay_off_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct ktd2026_led *led = cdev_to_led(led_cdev);
return sprintf(buf, "%lu\n", led->delay_off_time_ms);
}
/* Set brightness of a single LED */
static void lm2755_brightness_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
struct lm2755_led *led = cdev_to_led(cdev);
struct lm2755_data *data = led_to_lm2755(led);
pr_access("%s, value = %d\n", cdev->name, brightness);
mutex_lock(&data->lock);
led->level = lm2755_scale(brightness, data->max_level);
mutex_unlock(&data->lock);
schedule_work(&led->work);
}
static ssize_t led_delay_on_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct ktd2026_led *led = cdev_to_led(led_cdev);
unsigned long time;
if (kstrtoul(buf, 0, &time))
return -EINVAL;
led->delay_on_time_ms = (int)time;
return len;
}
static ssize_t led_blink_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct ktd2026_led *led = cdev_to_led(led_cdev);
unsigned long blink_set;
if (kstrtoul(buf, 0, &blink_set))
return -EINVAL;
if (!blink_set) {
led->delay_on_time_ms = LED_OFF;
ktd2026_set_brightness(led_cdev, LED_OFF);
}
led_blink_set(led_cdev,
&led->delay_on_time_ms, &led->delay_off_time_ms);
return len;
}
static enum led_brightness lm2755_brightness_get(struct led_classdev *cdev)
{
struct lm2755_led *led = cdev_to_led(cdev);
return led->level;
}