Commit 00253ec2 authored by Dan Murphy's avatar Dan Murphy Committed by Pavel Machek
Browse files

leds: lp5521: Add multicolor framework multicolor brightness support 



Add the multicolor brightness call back to support the multicolor
framework. This function allows setting the brightness across
grouped LED channels in a single call.

Acked-by: default avatarPavel Machek <pavel@ucw.cz>
Acked-by: default avatarJacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: default avatarDan Murphy <dmurphy@ti.com>
Signed-off-by: default avatarPavel Machek <pavel@ucw.cz>
parent 40473132

drivers/leds/leds-lp5521.c

+20 −0
Original line number Diff line number Diff line
@@ -349,6 +349,25 @@ static int lp5521_run_selftest(struct lp55xx_chip *chip, char *buf) 
	return 0;

}



static int lp5521_multicolor_brightness(struct lp55xx_led *led)

{

	struct lp55xx_chip *chip = led->chip;

	int ret;

	int i;



	mutex_lock(&chip->lock);

	for (i = 0; i < led->mc_cdev.num_colors; i++) {

		ret = lp55xx_write(chip,

				   LP5521_REG_LED_PWM_BASE +

				   led->mc_cdev.subled_info[i].channel,

				   led->mc_cdev.subled_info[i].brightness);

		if (ret)

			break;

	}

	mutex_unlock(&chip->lock);

	return ret;

}



static int lp5521_led_brightness(struct lp55xx_led *led)

{

	struct lp55xx_chip *chip = led->chip;
@@ -490,6 +509,7 @@ static struct lp55xx_device_config lp5521_cfg = { 
	.max_channel  = LP5521_MAX_LEDS,

	.post_init_device   = lp5521_post_init_device,

	.brightness_fn      = lp5521_led_brightness,

	.multicolor_brightness_fn = lp5521_multicolor_brightness,

	.set_led_current    = lp5521_set_led_current,

	.firmware_cb        = lp5521_firmware_loaded,

	.run_engine         = lp5521_run_engine,