leds: lp5523: Update the lp5523 code to add multicolor brightness function

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

Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index bb97549007d726c6b8efd99a5713fbd607356919..f55d97258d5e7824346829819f01f5dd31871ceb 100644 (file)
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -792,6 +792,25 @@ leave:
        return ret;
 }
 
+static int lp5523_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,
+                                  LP5523_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 lp5523_led_brightness(struct lp55xx_led *led)
 {
        struct lp55xx_chip *chip = led->chip;
@@ -858,6 +877,7 @@ static struct lp55xx_device_config lp5523_cfg = {
        .max_channel  = LP5523_MAX_LEDS,
        .post_init_device   = lp5523_post_init_device,
        .brightness_fn      = lp5523_led_brightness,
+       .multicolor_brightness_fn = lp5523_multicolor_brightness,
        .set_led_current    = lp5523_set_led_current,
        .firmware_cb        = lp5523_firmware_loaded,
        .run_engine         = lp5523_run_engine,