diff options
| author | Christian Marangi <ansuelsmth@gmail.com> | 2024-06-26 18:00:15 +0200 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2024-06-26 17:08:31 +0100 |
| commit | c63580b27a2c638cbae2fc26484b0bf29f303134 (patch) | |
| tree | 2c08eae93689cff746021a5f6c6a33cba8201772 /drivers/leds/leds-lp55xx-common.c | |
| parent | a3df1906fb9aa9ff45149e0a3c6434b2cef4f6e7 (diff) | |
leds: leds-lp55xx: Generalize led_brightness function
Generalize led_brightness function as the implementation is the same for
most of the lp55xx based LED driver.
Introduce a new option in device_config, reg_led_pwm_base since the reg
value is not the same for every LED chip.
Suggested-by: Lee Jones <lee@kernel.org>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://lore.kernel.org/r/20240626160027.19703-11-ansuelsmth@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/leds/leds-lp55xx-common.c')
| -rw-r--r-- | drivers/leds/leds-lp55xx-common.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c index 1c9348ed3edc..cc393e407837 100644 --- a/drivers/leds/leds-lp55xx-common.c +++ b/drivers/leds/leds-lp55xx-common.c @@ -242,6 +242,20 @@ void lp55xx_firmware_loaded_cb(struct lp55xx_chip *chip) } EXPORT_SYMBOL_GPL(lp55xx_firmware_loaded_cb); +int lp55xx_led_brightness(struct lp55xx_led *led) +{ + struct lp55xx_chip *chip = led->chip; + const struct lp55xx_device_config *cfg = chip->cfg; + int ret; + + mutex_lock(&chip->lock); + ret = lp55xx_write(chip, cfg->reg_led_pwm_base.addr + led->chan_nr, + led->brightness); + mutex_unlock(&chip->lock); + return ret; +} +EXPORT_SYMBOL_GPL(lp55xx_led_brightness); + static void lp55xx_reset_device(struct lp55xx_chip *chip) { const struct lp55xx_device_config *cfg = chip->cfg; |