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Date:   Tue, 1 Aug 2023 17:19:36 +0300
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Subject: Re: [PATCH v8 13/16] media: cadence: csi2rx: Add link validation
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To:     Jai Luthra <j-luthra@ti.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc:     linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
        Maxime Ripard <mripard@kernel.org>,
        niklas.soderlund+renesas@ragnatech.se,
        Benoit Parrot <bparrot@ti.com>,
        Vaishnav Achath <vaishnav.a@ti.com>,
        Vignesh Raghavendra <vigneshr@ti.com>, nm@ti.com,
        devarsht@ti.com
References: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com>
 <20230731-upstream_csi-v8-13-fb7d3661c2c9@ti.com>
From:   Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
In-Reply-To: <20230731-upstream_csi-v8-13-fb7d3661c2c9@ti.com>
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On 31/07/2023 11:29, Jai Luthra wrote:
> From: Pratyush Yadav <p.yadav@ti.com>
> 
> Add media link validation to make sure incorrectly configured pipelines
> are caught.
> 
> Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
> Signed-off-by: Jai Luthra <j-luthra@ti.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> ---
> v7->v8: No change
> 
>   drivers/media/platform/cadence/cdns-csi2rx.c | 5 +++++
>   1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c
> index d82a8938932f..aec33d28a66f 100644
> --- a/drivers/media/platform/cadence/cdns-csi2rx.c
> +++ b/drivers/media/platform/cadence/cdns-csi2rx.c
> @@ -463,6 +463,10 @@ static const struct v4l2_subdev_ops csi2rx_subdev_ops = {
>   	.pad		= &csi2rx_pad_ops,
>   };
>   
> +static const struct media_entity_operations csi2rx_media_ops = {
> +	.link_validate = v4l2_subdev_link_validate,
> +};
> +
>   static int csi2rx_async_bound(struct v4l2_async_notifier *notifier,
>   			      struct v4l2_subdev *s_subdev,
>   			      struct v4l2_async_connection *asd)
> @@ -679,6 +683,7 @@ static int csi2rx_probe(struct platform_device *pdev)
>   	for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++)
>   		csi2rx->pads[i].flags = MEDIA_PAD_FL_SOURCE;
>   	csi2rx->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> +	csi2rx->subdev.entity.ops = &csi2rx_media_ops;
>   
>   	ret = media_entity_pads_init(&csi2rx->subdev.entity, CSI2RX_PAD_MAX,
>   				     csi2rx->pads);
> 

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi