diff mbox series

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

Message ID 20231101142445.8753-7-ddrokosov@salutedevices.com
State Superseded
Headers show
Series leds: aw200xx: several driver updates | expand

Commit Message

Dmitry Rokosov Nov. 1, 2023, 2:24 p.m. UTC 
From: George Stark <gnstark@salutedevices.com>

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@salutedevices.com>
Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
---
 drivers/leds/leds-aw200xx.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

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);
 }