v4l2-compliance reports an error due to VIDIOC_S_PARM being supported
without VIDIOC_G_PARM. Fix it by implementing VIDIOC_G_PARM. To satisfy
all compliance tests, VIDIOC_S_PARM also needs to be updated to properly
zero reserved fields.
Fixes: 5456e02d3f ("v4l2: Support setting frame rate in the V4L2 Adaptation layer")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>