6.12-stable review patch. If anyone has any objections, please let me know.
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From: Alper Nebi Yasak alpernebiyasak@gmail.com
[ Upstream commit 377548f05bd0905db52a1d50e5b328b9b4eb049d ]
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@chromi... Signed-off-by: Alper Nebi Yasak alpernebiyasak@gmail.com Reviewed-by: Pin-yen Lin treapking@chromium.org Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Link: https://lore.kernel.org/r/20240916162956.267340-1-alpernebiyasak@gmail.com Signed-off-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 22924f61ec9ed..07ae3c8e897b7 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; };