diff options
| author |   Dan Murphy <dmurphy@ti.com> | 2020-07-16 13:20:04 -0500 |
|---|---|---|
| committer |   Pavel Machek <pavel@ucw.cz> | 2020-07-22 14:42:07 +0200 |
| commit | 00253ec2c9849c2a1101818565c7f4c09dbef327 (patch) | |
| tree | 4d2737f20ccb7f94f012d5bb152d60383497a94c /drivers/leds/leds-lp5521.c | |
| parent | leds: lp5523: Update the lp5523 code to add multicolor brightness function (diff) | |
| download | linux-dev-00253ec2c9849c2a1101818565c7f4c09dbef327.tar.xz linux-dev-00253ec2c9849c2a1101818565c7f4c09dbef327.zip | |
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: 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>
Diffstat (limited to 'drivers/leds/leds-lp5521.c')
| -rw-r--r-- | drivers/leds/leds-lp5521.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 6ff81d6be789..ef8c3bfa8f3c 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -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, |