From ba67e28b280f46ef3cbc10be29b84991f60ad52e Mon Sep 17 00:00:00 2001 From: Alper Nebi Yasak Date: Sun, 15 Sep 2024 13:13:09 +0300 To: linux-mediatek@lists.infradead.org To: devicetree@vger.kernel.org Cc: AngeloGioacchino Del Regno Cc: Chen-Yu Tsai Cc: Conor Dooley Cc: Fabien Parent Cc: Jitao Shi Cc: Krzysztof Kozlowski Cc: Matthias Brugger Cc: Pi-Hsun Shih Cc: Pin-yen Lin Cc: Rob Herring Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: mediatek: mt8183-kukui: Disable DPI display interface 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 --- arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi index 22924f61ec9e..07ae3c8e897b 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi @@ -290,6 +290,11 @@ dsi_out: endpoint { }; }; +&dpi0 { + /* TODO Re-enable after DP to Type-C port muxing can be described */ + status = "disabled"; +}; + &gic { mediatek,broken-save-restore-fw; }; base-commit: 5acd9952f95fb4b7da6d09a3be39195a80845eb6 -- 2.45.2