Hi Marcel,
On Mon, Mar 06, 2023 at 07:36:49AM +0100, Marcel Ziswiler wrote:
> From: Aishwarya Kothari <aishwarya.kothari@xxxxxxxxxxx>
>
> Implement the introduced get_mbus_config operation to report the
> config of the MIPI CSI-2, BT.656 and Parallel interface.
>
> Signed-off-by: Aishwarya Kothari <aishwarya.kothari@xxxxxxxxxxx>
> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
>
> ---
>
> Changes in v2:
> - Take care of MIPI CSI-2, BT.656 and Parallel interface as
> pointed out by Jacopo. Thanks!
>
> drivers/media/i2c/ov5640.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
> index 1536649b9e90..43373416fcba 100644
> --- a/drivers/media/i2c/ov5640.c
> +++ b/drivers/media/i2c/ov5640.c
> @@ -3774,6 +3774,24 @@ static int ov5640_init_cfg(struct v4l2_subdev *sd,
> return 0;
> }
>
> +static int ov5640_get_mbus_config(struct v4l2_subdev *sd,
> + unsigned int pad,
> + struct v4l2_mbus_config *cfg)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> +
> + cfg->type = sensor->ep.bus_type;
> + if (ov5640_is_csi2(sensor)) {
> + cfg->bus.mipi_csi2.num_data_lanes =
> + sensor->ep.bus.mipi_csi2.num_data_lanes;
> + cfg->bus.mipi_csi2.flags = sensor->ep.bus.mipi_csi2.flags;
> + } else {
> + cfg->bus.parallel.flags = sensor->ep.bus.parallel.flags;
> + }
> +
> + return 0;
> +}
> +
> static const struct v4l2_subdev_core_ops ov5640_core_ops = {
> .log_status = v4l2_ctrl_subdev_log_status,
> .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
> @@ -3794,6 +3812,7 @@ static const struct v4l2_subdev_pad_ops ov5640_pad_ops = {
> .get_selection = ov5640_get_selection,
> .enum_frame_size = ov5640_enum_frame_size,
> .enum_frame_interval = ov5640_enum_frame_interval,
> + .get_mbus_config = ov5640_get_mbus_config,
What's the reasoning for this patch?
Drivers that don't have e.g. dynamic lane configuration shouldn't need to
implement get_mbus_config.
--
Kind regards,
Sakari Ailus
