diff mbox series

media: i2c: dw9714: Fix occasional probe errors

Message ID 20240217184926.1754245-1-megi@xff.cz
State Accepted
Commit 9d00ccabfbb522bb7a23ed329be2bf6aee04fe06
Headers show
Series media: i2c: dw9714: Fix occasional probe errors | expand

Commit Message

Ondřej Jirman Feb. 17, 2024, 6:49 p.m. UTC 
From: Ondrej Jirman <megi@xff.cz>

The powerup delay was not observed during probe, leading to occasional
I2C communication failures in RPM suspend callback. Power delay is
properly observed in resume callback already.

Signed-off-by: Ondrej Jirman <megi@xff.cz>
---
 drivers/media/i2c/dw9714.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/i2c/dw9714.c b/drivers/media/i2c/dw9714.c
index cc09b32ede60..84d29bcf0ccd 100644
--- a/drivers/media/i2c/dw9714.c
+++ b/drivers/media/i2c/dw9714.c
@@ -157,6 +157,8 @@  static int dw9714_probe(struct i2c_client *client)
 		return rval;
 	}
 
+	usleep_range(1000, 2000);
+
 	v4l2_i2c_subdev_init(&dw9714_dev->sd, client, &dw9714_ops);
 	dw9714_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
 				V4L2_SUBDEV_FL_HAS_EVENTS;