[PATCH 5/7] arm64: dts: qcom: lemans-draco-evk: Add AUO G133HAN01 LVDS panel overlay

[mohit.dsor@oss.qualcomm.com]

From: Anand Tiwari <anand.tiwari@oss.qualcomm.com>

Add a DT overlay for Lemans Draco EVK, to enable LVDS interface when
LVDS daughter card is connected to DSI0_B2B on carrier card.

There is SN65DSI84 DSI-to-LVDS bridge on the daughter card which is
connected through I2C mux channel 1 on i2c1, with reset and interrupt
connected to GPIO39 and GPIO97. Backlight is driven by a PCA9685 PWM
controller on i2c4.

Disable the default HDMI bridge and connector in favour of the LVDS
panel.

Signed-off-by: Anand Tiwari <anand.tiwari@oss.qualcomm.com>
Signed-off-by: Mohit Dsor <mohit.dsor@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/Makefile                  |   4 +
 .../qcom/lemans-draco-evk-lvds-auo,g133han01.dtso  | 131 +++++++++++++++++++++
 arch/arm64/boot/dts/qcom/lemans-draco-evk-som.dtsi |   5 +
 arch/arm64/boot/dts/qcom/lemans-draco-evk.dts      |   1 +
 4 files changed, 141 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 90a00ab40c1a..b50b38c15c6b 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -65,6 +65,10 @@ dtb-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-hdmi-dual-dsi.dtbo
 lemans-draco-evk-dlc0697-dsi-dtbs := lemans-draco-evk.dtb lemans-draco-evk-dlc0697-dsi.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-dlc0697-dsi.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-dlc0697-dsi.dtbo
+
+lemans-draco-evk-lvds-auo,g133han01-dtbs := lemans-draco-evk.dtb lemans-draco-evk-lvds-auo,g133han01.dtbo
+dtb-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-lvds-auo,g133han01.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-lvds-auo,g133han01.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= mahua-crd.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= milos-fairphone-fp6.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= milos-nothing-asteroids.dtb
diff --git a/arch/arm64/boot/dts/qcom/lemans-draco-evk-lvds-auo,g133han01.dtso b/arch/arm64/boot/dts/qcom/lemans-draco-evk-lvds-auo,g133han01.dtso
new file mode 100644
index 000000000000..a9d245ae86a1
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/lemans-draco-evk-lvds-auo,g133han01.dtso
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&{/} {
+	backlight_lvds: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pca9685 2 1000000>;
+		power-supply = <&vreg_bridge_3p3>;
+		enable-gpios = <&expander2 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	panel-lvds {
+		compatible = "auo,g133han01";
+		power-supply = <&vreg_bridge_3p3>;
+		backlight = <&backlight_lvds>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/* LVDS Channel A - odd pixels */
+			port@0 {
+				reg = <0>;
+				dual-lvds-odd-pixels;
+
+				lvds_panel_out_a: endpoint {
+					remote-endpoint = <&sn65dsi84_out_a>;
+				};
+			};
+
+			/* LVDS Channel B - even pixels */
+			port@1 {
+				reg = <1>;
+				dual-lvds-even-pixels;
+
+				lvds_panel_out_b: endpoint {
+					remote-endpoint = <&sn65dsi84_out_b>;
+				};
+			};
+		};
+	};
+};
+
+&hdmi_bridge {
+        status = "disabled";
+};
+
+&hdmi_connector {
+	status = "disabled";
+};
+
+&i2c1 {
+	i2c-mux@70 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			bridge@2c {
+				compatible = "ti,sn65dsi84";
+				reg = <0x2c>;
+
+				enable-gpios = <&tlmm 39 GPIO_ACTIVE_HIGH>;
+				interrupts-extended = <&tlmm 97 IRQ_TYPE_EDGE_FALLING>;
+
+				vcc-supply = <&vreg_bridge_3p3>;
+
+				pinctrl-0 = <&bridge_rst_pin &bridge_irq_pin>;
+				pinctrl-names = "default";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						sn65dsi84_in: endpoint {
+							data-lanes = <1 2 3 4>;
+							remote-endpoint = <&mdss0_dsi0_out>;
+						};
+					};
+
+					port@2 {
+						reg = <2>;
+
+						sn65dsi84_out_a: endpoint {
+							data-lanes = <1 2 3 4>;
+							remote-endpoint = <&lvds_panel_out_a>;
+						};
+					};
+
+					port@3 {
+						reg = <3>;
+
+						sn65dsi84_out_b: endpoint {
+							data-lanes = <1 2 3 4>;
+							remote-endpoint = <&lvds_panel_out_b>;
+						};
+					};
+				};
+			};
+		};
+	};
+};
+
+&i2c4 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	pca9685: pwm@42 {
+		compatible = "nxp,pca9685-pwm";
+		reg = <0x42>;
+		#pwm-cells = <2>;
+	};
+};
+
+&mdss0_dsi0_out {
+	remote-endpoint = <&sn65dsi84_in>;
+};
diff --git a/arch/arm64/boot/dts/qcom/lemans-draco-evk-som.dtsi b/arch/arm64/boot/dts/qcom/lemans-draco-evk-som.dtsi
index 6b7971bcdc93..dac4d4c7ab9c 100644
--- a/arch/arm64/boot/dts/qcom/lemans-draco-evk-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans-draco-evk-som.dtsi
@@ -267,6 +267,11 @@ &pmm8654au_0_pon_resin {
 	status = "okay";
 };
 
+&qup_i2c4_default {
+	drive-strength = <6>;
+	bias-pull-up;
+};
+
 &qupv3_id_0 {
 	firmware-name = "qcom/sa8775p/qupv3fw.elf";
 
diff --git a/arch/arm64/boot/dts/qcom/lemans-draco-evk.dts b/arch/arm64/boot/dts/qcom/lemans-draco-evk.dts
index 89beed7de36b..49a8c568a2ae 100644
--- a/arch/arm64/boot/dts/qcom/lemans-draco-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-draco-evk.dts
@@ -17,6 +17,7 @@ aliases {
 		ethernet0 = &ethernet0;
 		ethernet1 = &ethernet1;
 		i2c1 = &i2c1;
+		i2c4 = &i2c4;
 	};
 
 	dp0-connector {

-- 
2.34.1