media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power

When the subdevice doesn't provide s_power core ops callback, the v4l2_subdev_call for s_power returns -ENOIOCTLCMD. If the subdevice doesn't have the special handling for its power saving mode, the s_power isn't required. So -ENOIOCTLCMD from the v4l2_subdev_call should be ignored. Cc: Hans Verkuil <[email protected]> Signed-off-by: Akinobu Mita <[email protected]> Acked-by: Sylwester Nawrocki <[email protected]> Signed-off-by: Sakari Ailus <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
olifre · Jun 28, 2018 · 30ed2b8 · 30ed2b8
1 parent 2ec7deb
commit 30ed2b8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -117,6 +117,8 @@ static int sensor_set_power(struct camif_dev *camif, int on)
 
 	if (camif->sensor.power_count == !on)
 		err = v4l2_subdev_call(sensor->sd, core, s_power, on);
+	if (err == -ENOIOCTLCMD)
+		err = 0;
 	if (!err)
 		sensor->power_count += on ? 1 : -1;