media: imx-jpeg: Support contiguous and non contiguous format

mxc-jpeg supports non contiguous format nv12m,
and in order to compatible with the devices
that only support contiguous format nv12,
jpeg can support nv12 and nv12m in the same time.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: document is_rgb variable]

drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h

@@ -45,11 +45,13 @@ enum mxc_jpeg_mode {
  * @subsampling: subsampling of jpeg components
  * @nc:		number of color components
  * @depth:	number of bits per pixel
- * @colplanes:	number of color planes (1 for packed formats)
+ * @mem_planes:	number of memory planes (1 for packed formats)
+ * @comp_planes:number of component planes, which includes the alpha plane (1 to 4).
  * @h_align:	horizontal alignment order (align to 2^h_align)
  * @v_align:	vertical alignment order (align to 2^v_align)
  * @flags:	flags describing format applicability
  * @precision:  jpeg sample precision
+ * @is_rgb:     is an RGB pixel format
  */
 struct mxc_jpeg_fmt {
 	const char				*name;
@@ -57,11 +59,13 @@ struct mxc_jpeg_fmt {
 	enum v4l2_jpeg_chroma_subsampling	subsampling;
 	int					nc;
 	int					depth;
-	int					colplanes;
+	int					mem_planes;
+	int					comp_planes;
 	int					h_align;
 	int					v_align;
 	u32					flags;
 	u8					precision;
+	u8					is_rgb;
 };
 
 struct mxc_jpeg_desc {