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From:   Pin-Yen Lin <treapking@chromium.org>
To:     Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzk+dt@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>
Cc:     Pin-Yen Lin <treapking@chromium.org>,
        Enric Balletbo i Serra <enric.balletbo@collabora.com>,
        Hsin-Yi Wang <hsinyi@chromium.org>, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-mediatek@lists.infradead.org
Subject: [PATCH] arm64: dts: mt8173: Fix elm panel DT node
Date:   Thu, 19 May 2022 15:26:49 +0800
Message-Id: <20220519072649.1493706-1-treapking@chromium.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Move the panel DT node under `aux-bus` node so it won't use the buggy
`ps8640_bridge_get_edid` to get display modes. Also change the
compatible string to "edp-panel" because the predefined
`lg_lp129qe_mode` is not working.

Signed-off-by: Pin-Yen Lin <treapking@chromium.org>
Fixes: 689b937bedde ("arm64: dts: mediatek: add mt8173 elm and hana board")
---

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

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
index 9c75fbb31f98..1e0802a6f6d2 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
@@ -90,18 +90,6 @@ 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";
@@ -282,6 +270,20 @@ ps8640_out: endpoint {
 				};
 			};
 		};
+
+		aux-bus {
+			panel {
+				compatible = "edp-panel";
+				power-supply = <&panel_fixed_3v3>;
+				backlight = <&backlight>;
+
+				port {
+					panel_in: endpoint {
+						remote-endpoint = <&ps8640_out>;
+					};
+				};
+			};
+		};
 	};
 };
 
-- 
2.36.1.124.g0e6072fb45-goog