linux-kernel - Re: [PATCH v1 1/3] of: base: Provide of_graph_get_port

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Message-ID: <CAL_JsqLvXH3kKV-DxWuNrAYGh8=L8Mdg5zcm2RsHZTpmi_8g-g@mail.gmail.com>
Date:   Wed, 17 May 2017 11:36:24 -0500
From:   Rob Herring <robh+dt@...nel.org>
To:     Kieran Bingham <kbingham@...nel.org>
Cc:     "open list:MEDIA DRIVERS FOR RENESAS - FCP" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        Sakari Ailus <sakari.ailus@....fi>,
        Niklas Söderlund <niklas.soderlund@...natech.se>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Frank Rowand <frowand.list@...il.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 1/3] of: base: Provide of_graph_get_port_parent()

On Wed, May 17, 2017 at 10:03 AM, Kieran Bingham <kbingham@...nel.org> wrote:
> From: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
>
> When handling endpoints, the v4l2 async framework needs to identify the
> parent device of a port endpoint.
>
> Adapt the existing of_graph_get_remote_port_parent() such that a caller
> can obtain the parent of a port without parsing the remote-endpoint
> first.

A similar patch is already applied as part of the ASoC graph card support.

Rob