> + for (i = 0; i < fd.num_entries; i++) {
> + struct v4l2_mbus_frame_desc_entry *entry = &fd.entry[i];
> + int source_pad;
> +
> + source_pad = rcsi2_vc_to_pad(entry->bus.csi2.channel);
> + if (source_pad < 0) {
> + dev_err(priv->dev, "Virtual Channel out of range: %u\n",
> + entry->bus.csi2.channel);
> + return -ENOSPC;
Why -ENOSPC here?
AFAIU negative source_pad here means driver internal error (frame desc
returned from rcsi2_get_remote_frame_desc() is invalid). Then I think
error return should be -EIO.
Nikita
