If a pixel format is not supported by the hardware NULL is returned by
rvin_format_from_pixel() for that fourcc. Verify that the pixel format
is supported using this or skip it when enumerating.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
static int rvin_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
- if (f->index >= ARRAY_SIZE(rvin_formats))
- return -EINVAL;
-
- f->pixelformat = rvin_formats[f->index].fourcc;
+ struct rvin_dev *vin = video_drvdata(file);
+ unsigned int i;
+ int matched;
+
+ matched = -1;
+ for (i = 0; i < ARRAY_SIZE(rvin_formats); i++) {
+ if (rvin_format_from_pixel(vin, rvin_formats[i].fourcc))
+ matched++;
+
+ if (matched == f->index) {
+ f->pixelformat = rvin_formats[i].fourcc;
+ return 0;
+ }
+ }
- return 0;
+ return -EINVAL;
}
static int rvin_g_selection(struct file *file, void *fh,