[media] omap3isp: preview: Add crop support on the sink pad
The crop rectangle takes the preview engine internal cropping
requirements into account. The smallest allowable margins are 14 columns
and 8 rows when reading from memory, and 18 columns and 8 rows when
processing data on the fly from the CCDC.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/omap3isp/isppreview.h b/drivers/media/video/omap3isp/isppreview.h
index 272a44a..f54e775 100644
--- a/drivers/media/video/omap3isp/isppreview.h
+++ b/drivers/media/video/omap3isp/isppreview.h
@@ -152,6 +152,7 @@
* @subdev: V4L2 subdevice
* @pads: Media entity pads
* @formats: Active formats at the subdev pad
+ * @crop: Active crop rectangle
* @input: Module currently connected to the input pad
* @output: Bitmask of the active output
* @video_in: Input video entity
@@ -170,6 +171,7 @@
struct v4l2_subdev subdev;
struct media_pad pads[PREV_PADS_NUM];
struct v4l2_mbus_framefmt formats[PREV_PADS_NUM];
+ struct v4l2_rect crop;
struct v4l2_ctrl_handler ctrls;