[PATCH v11 13/16] leds: lp5523: Update the lp5523 code to add intensity function

From: Dan Murphy
Date: Tue Oct 08 2019 - 16:49:05 EST


Add the intensity function call back to support the multicolor
framework. This function allows setting a specific brightness on
a specific channel.

Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
drivers/leds/leds-lp5523.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index d0b931a136b9..5d6002e4d657 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -791,6 +791,25 @@ static ssize_t store_master_fader_leds(struct device *dev,
return ret;
}

+static int lp5523_led_intensity(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_leds; i++) {
+ ret = lp55xx_write(chip,
+ LP5523_REG_LED_PWM_BASE +
+ led->color_component[i].output_num,
+ led->color_component[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;
@@ -857,6 +876,7 @@ static struct lp55xx_device_config lp5523_cfg = {
.max_channel = LP5523_MAX_LEDS,
.post_init_device = lp5523_post_init_device,
.brightness_fn = lp5523_led_brightness,
+ .color_intensity_fn = lp5523_led_intensity,
.set_led_current = lp5523_set_led_current,
.firmware_cb = lp5523_firmware_loaded,
.run_engine = lp5523_run_engine,
--
2.22.0.214.g8dca754b1e