linux-kernel - [PATCH 3/3] arm64: dts: qcom: sm7225-fairphone-fp4: Enable display and GPU

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Message-Id: <20240105-fp4-panel-v1-3-1afbabc55276@fairphone.com>
Date: Fri, 05 Jan 2024 15:29:14 +0100
From: Luca Weiss <luca.weiss@...rphone.com>
To: Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>, 
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 Luca Weiss <luca.weiss@...rphone.com>
Subject: [PATCH 3/3] arm64: dts: qcom: sm7225-fairphone-fp4: Enable display
 and GPU

Add the description for the display panel found on this phone and remove
the simple-framebuffer that was in place until now. Unfortunately the
LCDB module on PM6150L isn't yet supported upstream so we need to use a
dummy regulator-fixed in the meantime.

And with this done we can also enable the GPU.

Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
---
 arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 62 +++++++++++++++++++----
 1 file changed, 53 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
index ade619805519..8eb376f2db46 100644
--- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
+++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
@@ -45,15 +45,6 @@ chosen {
 		ranges;
 
 		stdout-path = "serial0:115200n8";
-
-		framebuffer0: framebuffer@...0000 {
-			compatible = "simple-framebuffer";
-			reg = <0 0xa0000000 0 (2340 * 1080 * 4)>;
-			width = <1080>;
-			height = <2340>;
-			stride = <(1080 * 4)>;
-			format = "a8r8g8b8";
-		};
 	};
 
 	gpio-keys {
@@ -68,6 +59,14 @@ key-volume-up {
 		};
 	};
 
+	/* Dummy regulator until PM6150L has LCDB VSP/VSN support */
+	lcdb_dummy: regulator-lcdb-dummy {
+		compatible = "regulator-fixed";
+		regulator-name = "lcdb_dummy";
+		regulator-min-microvolt = <5500000>;
+		regulator-max-microvolt = <5500000>;
+	};
+
 	reserved-memory {
 		/*
 		 * The rmtfs memory region in downstream is 'dynamically allocated'
@@ -365,6 +364,10 @@ &cdsp {
 	status = "okay";
 };
 
+&gmu {
+	status = "okay";
+};
+
 &gpi_dma0 {
 	status = "okay";
 };
@@ -373,6 +376,10 @@ &gpi_dma1 {
 	status = "okay";
 };
 
+&gpu {
+	status = "okay";
+};
+
 &i2c0 {
 	clock-frequency = <400000>;
 	status = "okay";
@@ -404,6 +411,43 @@ &ipa {
 	status = "okay";
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&vreg_l22a>;
+	status = "okay";
+
+	panel@0 {
+		compatible = "fairphone,fp4-hx83112a-djn", "himax,hx83112a";
+		reg = <0>;
+
+		backlight = <&pm6150l_wled>;
+		reset-gpios = <&pm6150l_gpios 9 GPIO_ACTIVE_LOW>;
+
+		vdd1-supply = <&vreg_l1e>;
+		vsn-supply = <&lcdb_dummy>;
+		vsp-supply = <&lcdb_dummy>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	data-lanes = <0 1 2 3>;
+	remote-endpoint = <&panel_in>;
+};
+
+&mdss_dsi0_phy {
+	vdds-supply = <&vreg_l18a>;
+	status = "okay";
+};
+
 &mpss {
 	firmware-name = "qcom/sm7225/fairphone4/modem.mdt";
 	status = "okay";

-- 
2.43.0