Re: [PATCH v2 3/4] media: i2c: vd55g1: Return the endpoint parser's error code

[Benjamin Mugnier <benjamin.mugnier@foss.st.com>]

Hi Ruslan,

Le 29/09/2026 à 11:27, Ruslan Koreev a écrit :
> Pass the endpoint to v4l2_fwnode_endpoint_alloc_parse() without checking
> it first and return the parser's error code instead of -EINVAL. The
> parser returns -EPROBE_DEFER for a missing endpoint, which is what a
> sensor on an ACPI system needs: there the endpoint is a software node
> that the IPU bridge attaches when the IPU driver probes, possibly after
> this driver. On OF systems a missing endpoint now defers the probe as
> well instead of failing it, as in other sensor drivers that leave this
> check to the parser.
> 
> Signed-off-by: Ruslan Koreev <koreev.r@gmail.com>

Reviewed-By: Benjamin Mugnier <benjamin.mugnier@foss.st.com>

> ---
>  drivers/media/i2c/vd55g1.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/media/i2c/vd55g1.c b/drivers/media/i2c/vd55g1.c
> index 22b1497e8..8043eaa50 100644
> --- a/drivers/media/i2c/vd55g1.c
> +++ b/drivers/media/i2c/vd55g1.c
> @@ -1801,7 +1801,7 @@ static int vd55g1_check_csi_conf(struct vd55g1 *sensor,
>  
>  	ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &ep);
>  	if (ret)
> -		return -EINVAL;
> +		return ret;
>  
>  	/* Check lanes number */
>  	n_lanes = ep.bus.mipi_csi2.num_data_lanes;
> @@ -1905,11 +1905,6 @@ static int vd55g1_parse_dt(struct vd55g1 *sensor)
>  
>  	endpoint = fwnode_graph_get_endpoint_by_id(dev_fwnode(sensor->dev),
>  						   0, 0, 0);
> -	if (!endpoint) {
> -		dev_err(sensor->dev, "Endpoint node not found\n");
> -		return -EINVAL;
> -	}
> -
>  	ret = vd55g1_check_csi_conf(sensor, endpoint);
>  	fwnode_handle_put(endpoint);
>  	if (ret)

-- 
Regards,
Benjamin