media: uvcvideo: Report V4L2 device caps through the video_device structure

The V4L2 core populates the struct v4l2_capability device_caps field
from the same field in video_device. There's no need to handle that
manually in the driver.

Signed-off-by: Laurent Pinchart <[e-mail]>
Reviewed-by: Guennadi Liakhovetski <[e-mail]>
Tested-by: Guennadi Liakhovetski <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/usb/uvc/uvc_driver.c

···
 		vdev->vfl_dir = VFL_DIR_TX;
 	else
 		vdev->vfl_dir = VFL_DIR_RX;
+
+	switch (type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+	default:
+		vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
+		break;
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
+		break;
+	}
+
 	strlcpy(vdev->name, dev->name, sizeof vdev->name);
 
 	/*

drivers/media/usb/uvc/uvc_v4l2.c

···
 	usb_make_path(stream->dev->udev, cap->bus_info, sizeof(cap->bus_info));
 	cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_STREAMING
 			  | chain->caps;
-	if (stream->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
-	else
-		cap->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
 
 	return 0;
 }