The LP55xx common driver has general LED attributes. (led_current and max_current) To set this current, specific register should be updated. Therefore, actual operation is handled in each driver.
This call is invoked on initializing LEDs and setting current by an user-space. Signed-off-by: Milo(Woogyom) Kim <[email protected]> --- drivers/leds/leds-lp5521.c | 9 +++++---- drivers/leds/leds-lp5523.c | 8 ++++++++ 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index e029598..1791655 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -229,11 +229,11 @@ static int lp5521_load_program(struct lp5521_engine *eng, const u8 *pattern) return lp5521_write(client, LP5521_REG_OP_MODE, mode); } -static int lp5521_set_led_current(struct lp5521_chip *chip, int led, u8 curr) +static void lp5521_set_led_current(struct lp55xx_led *led, u8 led_current) { - return lp5521_write(chip->client, - LP5521_REG_LED_CURRENT_BASE + chip->leds[led].chan_nr, - curr); + led->led_current = led_current; + lp55xx_write(led->chip, LP5521_REG_LED_CURRENT_BASE + led->chan_nr, + led_current); } static int lp5521_post_init_device(struct lp55xx_chip *chip) @@ -616,6 +616,7 @@ static struct lp55xx_device_config lp5521_cfg = { }, .post_init_device = lp5521_post_init_device, .brightness_work_fn = lp5521_led_brightness_work, + .set_led_current = lp5521_set_led_current, }; static int __devinit lp5521_probe(struct i2c_client *client, diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index fbde823..5d383b2 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -467,6 +467,13 @@ static void lp5523_led_brightness_work(struct work_struct *work) mutex_unlock(&chip->lock); } +static void lp5523_set_led_current(struct lp55xx_led *led, u8 led_current) +{ + led->led_current = led_current; + lp55xx_write(led->chip, LP5523_REG_LED_CURRENT_BASE + led->chan_nr, + led_current); +} + static int lp5523_do_store_load(struct lp5523_engine *engine, const char *buf, size_t len) { @@ -689,6 +696,7 @@ static struct lp55xx_device_config lp5523_cfg = { }, .post_init_device = lp5523_post_init_device, .brightness_work_fn = lp5523_led_brightness_work, + .set_led_current = lp5523_set_led_current, }; static int __devinit lp5523_probe(struct i2c_client *client, -- 1.7.9.5 Best Regards, Milo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
