linux-kernel - Re: [PATCH v2 0/2] Support bridge/connector by Tegra HDMI

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Message-ID: <ZMKIonuTnoXcuc95@orome>
Date:   Thu, 27 Jul 2023 17:09:22 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Svyatoslav Ryhel <clamor95@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mikko Perttunen <mperttunen@...dia.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Maxim Schwalm <maxim.schwalm@...il.com>,
        Dmitry Osipenko <digetx@...il.com>, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 0/2] Support bridge/connector by Tegra HDMI

On Sun, Jun 18, 2023 at 11:50:44AM +0300, Svyatoslav Ryhel wrote:
> This patch adds support for the bridge/connector attached to the
> HDMI output, allowing to model the hardware properly. It keeps
> backwards compatibility with existing bindings and is required
> by devices which have a simple or MHL bridge connected to HDMI
> output like ASUS P1801-T or LG P880/P895 or HTC One X.
> 
> Tested on ASUS Transformers which have no dedicated bridge but
> have type d HDMI connector directly available. Tests went smoothly.

If I understand correctly, we still need the drm/tegra patch to be
applied before the DT change, otherwise the driver won't know what to do
about the connector, right?

That shouldn't be big problem, but it means that the patches need to be
staged in correctly to avoid breaking things.

Thierry

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