linux-kernel - [PATCH v3 05/11] arm64: dts: qcom: sdm845-lg-judyln: Add display panel

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Message-Id: <20250928-judyln-dts-v3-5-b14cf9e9a928@postmarketos.org>
Date: Sun, 28 Sep 2025 22:05:28 -0700
From: Paul Sajna <sajattack@...tmarketos.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, David Heidelberg <david@...t.cz>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org, 
 Amir Dahan <system64fumo@...tonmail.com>, 
 Christopher Brown <crispybrown@...il.com>, 
 Paul Sajna <sajattack@...tmarketos.org>
Subject: [PATCH v3 05/11] arm64: dts: qcom: sdm845-lg-judyln: Add display
 panel

Also include other supporting msm drm nodes, including backlight

Signed-off-by: Paul Sajna <sajattack@...tmarketos.org>
Co-developed-by: Amir Dahan <system64fumo@...tonmail.com>
Signed-off-by: Amir Dahan <system64fumo@...tonmail.com>
---
 arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi |  8 +--
 arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts  | 82 ++++++++++++++++++++++----
 2 files changed, 73 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
index 2a612922ecf7ce3f8a0734cb1a31a8a81efdb4f2..aa338612433f9ac3b07363b79d8a3b8e0eedd98b 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
@@ -461,10 +461,6 @@ &cdsp_pas {
 	status = "okay";
 };
 
-&dispcc {
-	status = "disabled";
-};
-
 &gcc {
 	protected-clocks = <GCC_QSPI_CORE_CLK>,
 			   <GCC_QSPI_CORE_CLK_SRC>,
@@ -532,6 +528,10 @@ led@5 {
 	};
 };
 
+&pmi8998_wled {
+	status = "okay";
+};
+
 &sdhc_2 {
 	cd-gpios = <&tlmm 126 GPIO_ACTIVE_LOW>;
 
diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
index df65b0e32b195d2f668883542cfcabbb9bde8204..f45eb1dfe55c562142092a4239758609fa3f2e47 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
@@ -13,19 +13,6 @@ / {
 	model = "LG G7 ThinQ";
 	compatible = "lg,judyln", "qcom,sdm845";
 
-	chosen {
-		framebuffer@...00000 {
-			compatible = "simple-framebuffer";
-			reg = <0x0 0x9d400000 0x0 (1440 * 3120 * 4)>;
-			width = <1440>;
-			height = <3120>;
-			stride = <(1440 * 4)>;
-			format = "a8r8g8b8";
-			lab-supply = <&lab>;
-			ibb-supply = <&ibb>;
-		};
-	};
-
 	/* Additional ThinQ key */
 	gpio-keys {
 		pinctrl-0 = <&vol_up_pin_a &thinq_key_default>;
@@ -61,6 +48,47 @@ zap-shader {
 	};
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&vdda_mipi_dsi0_1p2>;
+
+	status = "okay";
+
+	display_panel: panel@0 {
+		reg = <0>;
+		compatible = "lg,sw49410";
+
+		backlight = <&pmi8998_wled>;
+		reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
+		width-mm = <65>;
+		height-mm = <140>;
+
+		pinctrl-0 = <&sde_dsi_active &sde_te_active>;
+		pinctrl-1 = <&sde_dsi_sleep &sde_te_sleep>;
+		pinctrl-names = "default", "sleep";
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_phy {
+	vdds-supply = <&vdda_mipi_dsi0_pll>;
+
+	status = "okay";
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&panel_in>;
+	data-lanes = <0 1 2 3>;
+};
+
 &mss_pil {
 	firmware-name = "qcom/sdm845/judyln/mba.mbn", "qcom/sdm845/judyln/modem.mbn";
 };
@@ -78,6 +106,34 @@ thinq_key_default: thinq-key-default-state {
 		drive-strength = <2>;
 		bias-pull-up;
 	};
+
+	sde_dsi_active: sde-dsi-active-state {
+		pins = "gpio6";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	sde_dsi_sleep: sde-dsi-sleep-state {
+		pins = "gpio6";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	sde_te_active: sde-te-active-state {
+		pins = "gpio10";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	sde_te_sleep: sde-te-sleep-state {
+		pins = "gpio10";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
 };
 
 &bluetooth {

-- 
2.51.0