linux-kernel - [PATCH] Revert "arm64: dts: mediatek: mt8173-elm: Move display to ps8640 auxiliary bus"

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Date:   Wed, 15 Mar 2023 12:11:07 +0800
From:   Pin-yen Lin <treapking@...omium.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Pin-yen Lin <treapking@...omium.org>
Subject: [PATCH] Revert "arm64: dts: mediatek: mt8173-elm: Move display to ps8640 auxiliary bus"

This reverts commit c2d94f72140a28d0f516b7c5e8274a9c185a04ff.

The `lg_lp120up1_mode` defined in panel-edp.c is not working for some
panels used on elm/hana devices. Move the panel node out of the aux-bus
subnode so the driver only uses the modes retrieved from the EDID.

Signed-off-by: Pin-yen Lin <treapking@...omium.org>

---

 arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 26 +++++++++-----------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
index d452cab28c67..d45a2aeb0eb1 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
@@ -90,6 +90,18 @@ switch-volume-up {
 		};
 	};
 
+	panel: panel {
+		compatible = "lg,lp120up1";
+		power-supply = <&panel_fixed_3v3>;
+		backlight = <&backlight>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&ps8640_out>;
+			};
+		};
+	};
+
 	panel_fixed_3v3: regulator1 {
 		compatible = "regulator-fixed";
 		regulator-name = "PANEL_3V3";
@@ -282,20 +294,6 @@ ps8640_out: endpoint {
 				};
 			};
 		};
-
-		aux-bus {
-			panel: panel {
-				compatible = "lg,lp120up1";
-				power-supply = <&panel_fixed_3v3>;
-				backlight = <&backlight>;
-
-				port {
-					panel_in: endpoint {
-						remote-endpoint = <&ps8640_out>;
-					};
-				};
-			};
-		};
 	};
 };
 
-- 
2.40.0.rc1.284.g88254d51c5-goog