media: uvcvideo: Add KSMedia 8-bit IR format support

Add support for the 8-bit IR format GUID defined in the Microsoft Kernel
Streaming Media API.
Reported-by: Paul Menzel <pmenzel+linux-media@molgen.mpg.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Menzel <pmenzel+linux-media@molgen.mpg.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/usb/uvc/uvc_driver.c

@@ -99,6 +99,11 @@ static struct uvc_format_desc uvc_fmts[] = {
 		.guid		= UVC_GUID_FORMAT_D3DFMT_L8,
 		.fcc		= V4L2_PIX_FMT_GREY,
 	},
+	{
+		.name		= "IR 8-bit (L8_IR)",
+		.guid		= UVC_GUID_FORMAT_KSMEDIA_L8_IR,
+		.fcc		= V4L2_PIX_FMT_GREY,
+	},
 	{
 		.name		= "Greyscale 10-bit (Y10 )",
 		.guid		= UVC_GUID_FORMAT_Y10,

drivers/media/usb/uvc/uvcvideo.h

@@ -157,6 +157,9 @@
 #define UVC_GUID_FORMAT_D3DFMT_L8 \
 	{0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, \
 	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_KSMEDIA_L8_IR \
+	{0x32, 0x00, 0x00, 0x00, 0x02, 0x00, 0x10, 0x00, \
+	 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
 
 
 /* ------------------------------------------------------------------------