Re: [PATCH v8 16/16] media: ti: Add CSI2RX support for J721E

From: Sakari Ailus
Date: Wed Aug 02 2023 - 07:14:52 EST


Moi,

On Wed, Aug 02, 2023 at 02:04:57PM +0300, Tomi Valkeinen wrote:
> > +static int ti_csi2rx_enum_fmt_vid_cap(struct file *file, void *priv,
> > + struct v4l2_fmtdesc *f)
> > +{
> > + const struct ti_csi2rx_fmt *fmt = NULL;
> > +
> > + if (f->mbus_code) {
> > + if (f->index > 0)
> > + return -EINVAL;
>
> This fails to enumerate the formats if mbus_code is set, doesn't it?

This is intentional: if the mbus_code field is set, you're supposed to get
only format(s) corresponding to that mbus code.

>
> > +
> > + fmt = find_format_by_code(f->mbus_code);
> > + } else {
> > + if (f->index >= num_formats)
> > + return -EINVAL;
> > +
> > + fmt = &formats[f->index];
> > + }
> > +
> > + if (!fmt)
> > + return -EINVAL;
> > +
> > + f->pixelformat = fmt->fourcc;
> > + memset(f->reserved, 0, sizeof(f->reserved));
> > + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
> > +
> > + return 0;
> > +}

--
Sakari Ailus