[PATCH v3 06/11] leds: aw200xx: add delay after software reset

[Dmitry Rokosov]

From: George Stark <gnstark@xxxxxxxxxxxxxxxxx>

According to datasheets of aw200xx devices software reset takes at
least 1ms so add delay after reset before issuing commands to device.

Signed-off-by: George Stark <gnstark@xxxxxxxxxxxxxxxxx>
Signed-off-by: Dmitry Rokosov <ddrokosov@xxxxxxxxxxxxxxxxx>
---
 drivers/leds/leds-aw200xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/leds/leds-aw200xx.c b/drivers/leds/leds-aw200xx.c
index aab8898b0330..ae3b4a96c52c 100644
--- a/drivers/leds/leds-aw200xx.c
+++ b/drivers/leds/leds-aw200xx.c
@@ -321,6 +321,9 @@ static int aw200xx_chip_reset(const struct aw200xx *const chip)
 	if (ret)
 		return ret;
 
+	/* according to 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);
 }
-- 
2.36.0