linux-kernel - Re: [PATCH v3 01/15] media: rcar-csi2: Use the pad version of v4l2_get_link

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Message-ID: <20250602094321.GD3645@pendragon.ideasonboard.com>
Date: Mon, 2 Jun 2025 12:43:21 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
Cc: Niklas Söderlund <niklas.soderlund@...natech.se>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Niklas Söderlund <niklas.soderlund+renesas@...natech.se>,
	Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
	Jacopo Mondi <jacopo.mondi@...asonboard.com>
Subject: Re: [PATCH v3 01/15] media: rcar-csi2: Use the pad version of
 v4l2_get_link_freq()

Hi Tomi,

Thank you for the patch.

On Fri, May 30, 2025 at 04:50:30PM +0300, Tomi Valkeinen wrote:
> Use the new version of v4l2_get_link_freq() which supports media_pad as
> a parameter.

The commit message should explain why. With that fixed,

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>

> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
> ---
>  drivers/media/platform/renesas/rcar-csi2.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/platform/renesas/rcar-csi2.c
> index 9979de4f6ef1..ddbdde23c122 100644
> --- a/drivers/media/platform/renesas/rcar-csi2.c
> +++ b/drivers/media/platform/renesas/rcar-csi2.c
> @@ -954,6 +954,7 @@ static int rcsi2_set_phypll(struct rcar_csi2 *priv, unsigned int mbps)
>  static int rcsi2_calc_mbps(struct rcar_csi2 *priv, unsigned int bpp,
>  			   unsigned int lanes)
>  {
> +	struct media_pad *remote_pad;
>  	struct v4l2_subdev *source;
>  	s64 freq;
>  	u64 mbps;
> @@ -962,8 +963,9 @@ static int rcsi2_calc_mbps(struct rcar_csi2 *priv, unsigned int bpp,
>  		return -ENODEV;
>  
>  	source = priv->remote;
> +	remote_pad = &source->entity.pads[priv->remote_pad];
>  
> -	freq = v4l2_get_link_freq(source->ctrl_handler, bpp, 2 * lanes);
> +	freq = v4l2_get_link_freq(remote_pad, bpp, 2 * lanes);
>  	if (freq < 0) {
>  		int ret = (int)freq;
>  

-- 
Regards,

Laurent Pinchart