media: input/touchscreen/sur40: use COLORSPACE_RAW

This driver set the colorspace to SRGB, but that makes no sense for
a touchscreen. Use RAW instead. This also ensures consistency with the
v4l_pix_format_touch() call that's used in v4l2-ioctl.c.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Florian Echtler <floe@butterbrot.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/input/touchscreen/sur40.c

@@ -186,7 +186,7 @@ static const struct v4l2_pix_format sur40_pix_format[] = {
 		.width  = SENSOR_RES_X / 2,
 		.height = SENSOR_RES_Y / 2,
 		.field = V4L2_FIELD_NONE,
-		.colorspace = V4L2_COLORSPACE_SRGB,
+		.colorspace = V4L2_COLORSPACE_RAW,
 		.bytesperline = SENSOR_RES_X / 2,
 		.sizeimage = (SENSOR_RES_X/2) * (SENSOR_RES_Y/2),
 	},
@@ -195,7 +195,7 @@ static const struct v4l2_pix_format sur40_pix_format[] = {
 		.width  = SENSOR_RES_X / 2,
 		.height = SENSOR_RES_Y / 2,
 		.field = V4L2_FIELD_NONE,
-		.colorspace = V4L2_COLORSPACE_SRGB,
+		.colorspace = V4L2_COLORSPACE_RAW,
 		.bytesperline = SENSOR_RES_X / 2,
 		.sizeimage = (SENSOR_RES_X/2) * (SENSOR_RES_Y/2),
 	}