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leds: aw200xx: Add delay after software reset

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According to the datasheets of AW200xx devices, the software reset takes
at least 1ms. Therefore, it is required to add a delay after the
reset before issuing commands to the device.

Signed-off-by: George Stark <gnstark@salutedevices.com>
Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
Link: https://lore.kernel.org/r/20231125200519.1750-7-ddrokosov@salutedevices.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
George Stark 2023-11-25 23:05:14 +03:00 committed by Lee Jones
parent aa4ed49f42
commit d883a5ab2f
1 changed files with 3 additions and 0 deletions
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3
drivers/leds/leds-aw200xx.c
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@ -321,6 +321,9 @@ static int aw200xx_chip_reset(const struct aw200xx *const chip)
if (ret)
return ret;
/* According to the datasheet software reset takes at least 1ms */
fsleep(1000);
regcache_mark_dirty(chip->regmap);
return regmap_write(chip->regmap, AW200XX_REG_FCD, AW200XX_FCD_CLEAR);
}