linux-imx

LF-433: staging: media: imx: refine mipi csi2 driver for Samsung

csis_get_remote_sensor_pad() and media_entity_to_v4l2_subdev() called
to get remote subdev in many place. This patch wrap the two function
with a new method named csis_get_remote_subdev(). So we can remove
some redundant code.

Signed-off-by: Guoniu.zhou <guoniu.zhou@nxp.com>
Reviewed-by: Robby.cai <robby.cai@nxp.com>