media: media/platform: don't set description in ENUM_FMT

The V4L2 core sets the format description and flags for the driver in order
to ensure consistent naming.

So drop the strscpy of the description in drivers. Also remove any
description strings in driver-internal structures since those are
no longer needed.

And in am437x-vpfe.c drop an unnecessary f->type assignment in
vpfe_enum_fmt().

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[hverkuil-cisco@xs4all.nl: addressed some small suggestions from Laurent]
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/omap/omap_vout.c

@@ -114,14 +114,12 @@ static const struct v4l2_fmtdesc omap_formats[] = {
 		 *      Byte 0                    Byte 1
 		 *      g2 g1 g0 b4 b3 b2 b1 b0   r4 r3 r2 r1 r0 g5 g4 g3
 		 */
-		.description = "RGB565, le",
 		.pixelformat = V4L2_PIX_FMT_RGB565,
 	},
 	{
 		/* Note:  V4L2 defines RGB32 as: RGB-8-8-8-8  we use
 		 *  this for RGB24 unpack mode, the last 8 bits are ignored
 		 * */
-		.description = "RGB32, le",
 		.pixelformat = V4L2_PIX_FMT_RGB32,
 	},
 	{
@@ -129,15 +127,12 @@ static const struct v4l2_fmtdesc omap_formats[] = {
 		 *        this for RGB24 packed mode
 		 *
 		 */
-		.description = "RGB24, le",
 		.pixelformat = V4L2_PIX_FMT_RGB24,
 	},
 	{
-		.description = "YUYV (YUV 4:2:2), packed",
 		.pixelformat = V4L2_PIX_FMT_YUYV,
 	},
 	{
-		.description = "UYVY, packed",
 		.pixelformat = V4L2_PIX_FMT_UYVY,
 	},
 };
@@ -1060,8 +1055,6 @@ static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
 		return -EINVAL;
 
 	fmt->flags = omap_formats[index].flags;
-	strscpy(fmt->description, omap_formats[index].description,
-		sizeof(fmt->description));
 	fmt->pixelformat = omap_formats[index].pixelformat;
 
 	return 0;