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leds: lp5521: Add multicolor framework multicolor brightness support

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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: 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>
This commit is contained in:
Dan Murphy 2020-07-16 13:20:04 -05:00 committed by Pavel Machek
parent 4047313260
commit 00253ec2c9
1 changed files with 20 additions and 0 deletions
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20
drivers/leds/leds-lp5521.c
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@ -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,