iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

leds: aw200xx: Fix write to DIM parameter

Browse Source 
If write only DIM value to the page 4, LED brightness will not be
updated, as both DIM and FADE need to be written to the page 4.
Therefore, write DIM to the page 1.

Fixes: 36a87f371b7a ("leds: Add AW20xx driver")
Signed-off-by: Martin Kurbanov <mmkurbanov@salutedevices.com>
Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20231125200519.1750-2-ddrokosov@salutedevices.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Martin Kurbanov 2023-11-25 23:05:09 +03:00 committed by Lee Jones
parent 6dec659896
commit adfd4621b7
1 changed files with 6 additions and 1 deletions

7
drivers/leds/leds-aw200xx.c

@ -74,6 +74,10 @@
#define AW200XX_LED2REG(x, columns) \
((x) + (((x) / (columns)) * (AW200XX_DSIZE_COLUMNS_MAX - (columns))))
/* DIM current configuration register on page 1 */
#define AW200XX_REG_DIM_PAGE1(x, columns) \
AW200XX_REG(AW200XX_PAGE1, AW200XX_LED2REG(x, columns))
/*
* DIM current configuration register (page 4).
* The even address for current DIM configuration.
@ -153,7 +157,8 @@ static ssize_t dim_store(struct device *dev, struct device_attribute *devattr,
if (dim >= 0) {
ret = regmap_write(chip->regmap,
AW200XX_REG_DIM(led->num, columns), dim);
AW200XX_REG_DIM_PAGE1(led->num, columns),
dim);
if (ret)
goto out_unlock;
}