Re: [PATCH v3 09/15] media: rcar-fcp: Handle resets

[Philipp Zabel]

On Do, 2026-10-15 at 16:51 +0900, Paul Elder wrote:
> On some versions of the FCP, such as the one on the X5H, reset control
> is required to operate the FCP. Add support for handling resets
> optionally, to continue supporting versions that do not require it.
> 
> Signed-off-by: Paul Elder <paul.elder+renesas@xxxxxxxxxxxxxxxx>
> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
> 
> ---
> Changes in v2:
> - handle errors
> ---
>  drivers/media/platform/renesas/rcar-fcp.c | 30 ++++++++++++++++++++++++++++--
>  1 file changed, 28 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/platform/renesas/rcar-fcp.c b/drivers/media/platform/renesas/rcar-fcp.c
> index dfb0ca93e854dd0bb8aedfb757fd786ef6e45542..76d4c250b30815d9eac58f9b54ad923748df79f6 100644
> --- a/drivers/media/platform/renesas/rcar-fcp.c
> +++ b/drivers/media/platform/renesas/rcar-fcp.c
[...]
> @@ -162,20 +164,25 @@ static int rcar_fcp_probe(struct platform_device *pdev)
>  
>  	fcp->dev = &pdev->dev;
>  
> +	platform_set_drvdata(pdev, fcp);
> +
>  	fcp->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(fcp->base))
>  		return PTR_ERR(fcp->base);
>  
>  	dma_set_max_seg_size(fcp->dev, UINT_MAX);
>  
> +	fcp->rstc = devm_reset_control_get_optional(&pdev->dev, NULL);

Please use devm_reset_control_get_optional_exclusive() directly.

Otherwise,

Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>

regards
Philipp