The frame context agc.update variable is used to indicate if the ISP histogram metering parameters need to be updated. Rename it to updateMetering to make usage more explicit. Suggested-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>