diff mbox series

[v31,08/12] leds: lp5523: Update the lp5523 code to add multicolor brightness function

Message ID 20200716182007.18389-9-dmurphy@ti.com (mailing list archive)
State New, archived
Headers show
Series Multicolor Framework v31 | expand

Commit Message

Dan Murphy July 16, 2020, 6:20 p.m. UTC 
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>
---
 drivers/leds/leds-lp5523.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index bb97549007d7..f55d97258d5e 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -792,6 +792,25 @@  static ssize_t store_master_fader_leds(struct device *dev,
 	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,