drivers: media: imx296: Add standby delay during probe

Add a 2-5ms delay when coming out of standby and before reading the
sensor info register durning probe, as instructed by the datasheet. This
standby delay is already present when the sensor starts streaming.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>

diff --git a/drivers/media/i2c/imx296.c b/drivers/media/i2c/imx296.c
index f942f66..395bfe4 100644 (file)
--- a/drivers/media/i2c/imx296.c
+++ b/drivers/media/i2c/imx296.c
@@ -940,6 +940,8 @@ static int imx296_identify_model(struct imx296 *sensor)
                return ret;
        }
 
+       usleep_range(2000, 5000);
+
        ret = imx296_read(sensor, IMX296_SENSOR_INFO);
        if (ret < 0) {
                dev_err(sensor->dev, "failed to read sensor information (%d)\n",