media: i2c: imx296: Add 2ms delay after releasing standby

The delay seems to be required to reliably read model ID.
(The same delay is already used when starting the camera.)

Signed-off-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>

diff --git a/drivers/media/i2c/imx296.c b/drivers/media/i2c/imx296.c
index e16588f..adce60a 100644 (file)
--- a/drivers/media/i2c/imx296.c
+++ b/drivers/media/i2c/imx296.c
@@ -949,6 +949,7 @@ static int imx296_identify_model(struct imx296 *sensor)
                        "failed to get sensor out of standby (%d)\n", ret);
                return ret;
        }
+       usleep_range(2000, 5000);
 
        usleep_range(2000, 5000);