[PATCH v2 1/2] media: i2c: imx258: Add wait after enabling

[Muzaffer Kadir via B4 Relay]

From: Muzaffer Kadir <muzafferkadir@xxxxxxxxxxxxxx>

After enabling the device, a delay is required before the sensor is
ready for CCI access. 0.4ms delay needed between enabling and
reading the ID register over CCI.

Link: https://lore.kernel.org/phone-devel/apF5oxsCf7MJt1lk@kekkonen.localdomain/T/#md6a0411e81a2e3a563c935348f2fb4f3d52df64f
Signed-off-by: Muzaffer Kadir <muzafferkadir@xxxxxxxxxxxxxx>
---
 drivers/media/i2c/imx258.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
index bc9ee449a87c..9c3a6579df0d 100644
--- a/drivers/media/i2c/imx258.c
+++ b/drivers/media/i2c/imx258.c
@@ -1129,6 +1129,7 @@ static int imx258_power_on(struct device *dev)
 		dev_err(dev, "failed to enable clock\n");
 		regulator_bulk_disable(IMX258_NUM_SUPPLIES, imx258->supplies);
 	}
+	fsleep(400);
 
 	return ret;
 }

-- 
2.54.0