linux-kernel - Re: [PATCH] arm64: dts: mediatek: mt8183-kukui: Disable DPI display interface

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Message-ID: <0a78959a-2d72-47a0-83f1-89065ff48d0a@collabora.com>
Date: Thu, 19 Sep 2024 15:14:04 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Alper Nebi Yasak <alpernebiyasak@...il.com>,
 linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org
Cc: Pi-Hsun Shih <pihsun@...omium.org>, linux-arm-kernel@...ts.infradead.org,
 Chen-Yu Tsai <wenst@...omium.org>, Fabien Parent <fparent@...libre.com>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Jitao Shi
 <jitao.shi@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>,
 Pin-yen Lin <treapking@...omium.org>, linux-kernel@...r.kernel.org,
 Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH] arm64: dts: mediatek: mt8183-kukui: Disable DPI display
 interface

Il 16/09/24 18:29, Alper Nebi Yasak ha scritto:
> Commit 009d855a26fd ("arm64: dts: mt8183: add dpi node to mt8183") adds
> a device-tree node for the DPI display interface that feeds the external
> display pipeline, to enable HDMI support on the Pumpkin board.
> 
> However, the external display is not fully described on Chrome devices,
> blocked by further work on DP / USB-C muxing graph bindings. This
> incomplete description currently breaks internal display at least on the
> Cozmo board. The same issue was found and fixed on MT8186 devices with
> commit 3079fb09ddac ("arm64: dts: mediatek: mt8186-corsola: Disable DPI
> display interface"), but the MT8183 change wasn't merged until then.
> 
> Disable the external display interface for the Kukui device family until
> the necessary work is done, like in the MT8186 Corsola case.
> 
> Fixes: 009d855a26fd ("arm64: dts: mt8183: add dpi node to mt8183")
> Link: https://lore.kernel.org/linux-mediatek/20240821042836.2631815-1-wenst@chromium.org/
> Signed-off-by: Alper Nebi Yasak <alpernebiyasak@...il.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>