Hi Eugen,
On 18/11/21 16:40, Eugen Hristev wrote:
> Current driver supports only SRGGB 10 bit RAW bayer format.
> Add the enum_mbus_code implementation to report this format supported.
>
> # v4l2-ctl -d /dev/v4l-subdev3 --list-subdev-mbus-codes
> ioctl: VIDIOC_SUBDEV_ENUM_MBUS_CODE (pad=0)
> 0x300f: MEDIA_BUS_FMT_SRGGB10_1X10
> #
>
> Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
Generally OK, but I have a few minor comments.
> ---
> drivers/media/i2c/imx274.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/drivers/media/i2c/imx274.c b/drivers/media/i2c/imx274.c
> index 2e804e3b70c4..25a4ef8f6187 100644
> --- a/drivers/media/i2c/imx274.c
> +++ b/drivers/media/i2c/imx274.c
> @@ -1909,7 +1909,21 @@ static int imx274_set_frame_interval(struct stimx274 *priv,
> return err;
> }
>
> +static int imx274_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_state *sd_state,
> + struct v4l2_subdev_mbus_code_enum *code)
> +{
> + if (code->index > 0)
> + return -EINVAL;
Many driver do check code->pad too, so you might want to do
if (code->pad > 0 || code->index > 0)
return -EINVAL;
However I don't think it is strictly necessary, thus
> +
> + /* only supported format in the driver is Raw 10 bits SRGGB */
> + code->code = MEDIA_BUS_FMT_SRGGB10_1X10;
Maybe better:
code->code = to_imx274(sd)->format.code
just as a little guard for future format changes.
With or without these I'm OK anyway with the patch, so:
Reviewed-by: Luca Ceresoli <luca@xxxxxxxxxxxxxxxx>
--
Luca
