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Date:   Thu, 17 Jan 2019 19:06:28 -0200
From:   Fabio Estevam <festevam@...il.com>
To:     Steve Longerbeam <slongerbeam@...il.com>
Cc:     linux-media <linux-media@...r.kernel.org>,
        "open list:STAGING SUBSYSTEM" <devel@...verdev.osuosl.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Subject: Re: [PATCH v2] media: imx-csi: Input connections to CSI should be optional

Hi Steve,

On Thu, Jan 17, 2019 at 6:59 PM Steve Longerbeam <slongerbeam@...il.com> wrote:
>
> Some imx platforms do not have fwnode connections to all CSI input
> ports, and should not be treated as an error. This includes the
> imx6q SabreAuto, which has no connections to ipu1_csi1 and ipu2_csi0.
> Return -ENOTCONN in imx_csi_parse_endpoint() so that v4l2-fwnode
> endpoint parsing will not treat an unconnected CSI input port as
> an error.
>
> Fixes: c893500a16baf ("media: imx: csi: Register a subdev notifier")
>
> Signed-off-by: Steve Longerbeam <slongerbeam@...il.com>
> Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>
> Acked-by: Tim Harvey <tharvey@...eworks.com>
> Cc: stable@...r.kernel.org

Thanks. This fixes the following error messages:

[    3.449564] imx-ipuv3 2400000.ipu: driver could not parse
port@...ndpoint@0 (-22)
[    3.457342] imx-ipuv3-csi: probe of imx-ipuv3-csi.1 failed with error -22
[    3.464498] imx-ipuv3 2800000.ipu: driver could not parse
port@...ndpoint@0 (-22)
[    3.472120] imx-ipuv3-csi: probe of imx-ipuv3-csi.4 failed with error -22

Tested-by: Fabio Estevam <festevam@...il.com>

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