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Subject: media: i2c: dw9714: Fix occasional probe errors
Author: Ondrej Jirman <m...@xff.cz>
Date: Sat Feb 17 19:49:11 2024 +0100
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 <m...@xff.cz>
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
drivers/media/i2c/dw9714.c | 2 ++
1 file changed, 2 insertions(+)
---
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;
