media: uvcvideo: Add mapping for HEVC payloads

Add HEVC GUID and assotiate with HEVC pixel format so that frame
based format descriptors recognized by the UVC video driver.
Signed-off-by: Dmitry Buzdyk <dima.buzdyk@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/usb/uvc/uvc_driver.c

@@ -214,6 +214,11 @@ static struct uvc_format_desc uvc_fmts[] = {
 		.guid		= UVC_GUID_FORMAT_CNF4,
 		.fcc		= V4L2_PIX_FMT_CNF4,
 	},
+	{
+		.name		= "HEVC",
+		.guid		= UVC_GUID_FORMAT_HEVC,
+		.fcc		= V4L2_PIX_FMT_HEVC,
+	},
 };
 
 /* ------------------------------------------------------------------------

drivers/media/usb/uvc/uvcvideo.h

@@ -165,6 +165,10 @@
 	{0x32, 0x00, 0x00, 0x00, 0x02, 0x00, 0x10, 0x00, \
 	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
 
+#define UVC_GUID_FORMAT_HEVC \
+	{ 'H',  'E',  'V',  'C', 0x00, 0x00, 0x10, 0x00, \
+	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+
 
 /* ------------------------------------------------------------------------
  * Driver specific constants.