linux-kernel - Re: graph connection to node is not bidirectional kernel-5.6.0-rc6

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Date:   Thu, 19 Mar 2020 21:26:08 +0530
From:   Vinay Simha B N <simhavcs@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     "open list:DRM DRIVER FOR MSM ADRENO GPU" 
        <freedreno@...ts.freedesktop.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>
Subject: Re: graph connection to node is not bidirectional kernel-5.6.0-rc6

On Thu, Mar 19, 2020 at 9:16 PM Rob Herring <robh@...nel.org> wrote:
>
> On Thu, Mar 19, 2020 at 1:31 AM Vinay Simha B N <simhavcs@...il.com> wrote:
> >
> > hi,
> >
> > I am getting the endpoint' is not bidirectional(d2l_in, dsi0_out)
> > warning in compilation, built boot image works on qcom apq8016-ifc6309
> > board with the dsi->bridge->lvds panel.
> > Because of this warning i cannot create a .yaml documentation examples.
> > Please suggest.
> >
> > tc_bridge: bridge@f {
>
>              ^^^^^^^^
>
> > arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi:253.28-255.9: Warning
> > (graph_endpoint): /soc/i2c@...8000/bridge@...ports/port@...ndpoint:
>
>                                      ^^^^^^^^^
>
> Looks like you have 2 different bridges.
>
i had two bridges, if we disable one bridge also we get the warning

arch/arm64/boot/dts/qcom/apq8016-sbc.dtsi:333.53-335.35: Warning
(graph_endpoint): /soc/auo,b101xtn01/port/endpoint: graph connection
to node '/soc/i2c@...8000/bridge@...orts/port@...ndpoint' is not
bidirectional

> Rob



-- 
regards,
vinaysimha