[PATCH 6/6] arm64: dts: qcom: talos-lyra-evk: Add AUO G133HAN01 LVDS panel overlay

[Anand Tiwari]

Add a DT overlay for Talos Lyra 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 I2C5 with reset and interrupt connected to
GPIO61 and GPIO60. Backlight is driven by a generic clock-based PWM
using GCC_GP3 on TLMM GPIO59, with an additional backlight enable
GPIO on TLMM GPIO2.

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

Signed-off-by: Anand Tiwari <anand.tiwari@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/Makefile                  |   4 +
 .../qcom/talos-lyra-evk-lvds-auo,g133han01.dtso    | 134 +++++++++++++++++++++
 arch/arm64/boot/dts/qcom/talos-lyra-evk.dts        |   1 +
 3 files changed, 139 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 614152913cbb..f0551bd2d8e2 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -473,6 +473,10 @@ dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-camera-imx577.dtb
 talos-evk-lvds-auo,g133han01-dtbs	:= \
 	talos-evk.dtb talos-evk-lvds-auo,g133han01.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-lvds-auo,g133han01.dtb
+talos-lyra-evk-lvds-auo,g133han01-dtbs := \
+	talos-lyra-evk.dtb talos-lyra-evk-lvds-auo,g133han01.dtbo
+dtb-$(CONFIG_ARCH_QCOM) += talos-lyra-evk-lvds-auo,g133han01.dtb
+dtb-$(CONFIG_ARCH_QCOM) += talos-lyra-evk-lvds-auo,g133han01.dtbo
 talos-evk-rpi-display-2-5in-dtbs	:= \
 	talos-evk.dtb talos-evk-rpi-display-2-5in.dtbo
 dtb-$(CONFIG_ARCH_QCOM)	+= talos-evk-rpi-display-2-5in.dtb
diff --git a/arch/arm64/boot/dts/qcom/talos-lyra-evk-lvds-auo,g133han01.dtso b/arch/arm64/boot/dts/qcom/talos-lyra-evk-lvds-auo,g133han01.dtso
new file mode 100644
index 000000000000..3edb56937446
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/talos-lyra-evk-lvds-auo,g133han01.dtso
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/qcom,qcs615-gcc.h>
+#include <dt-bindings/clock/qcom,rpmh.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&{/} {
+	bklt_pwm: pwm {
+		compatible = "clk-pwm";
+		#pwm-cells = <2>;
+		assigned-clock-parents = <&rpmhcc RPMH_CXO_CLK>;
+		assigned-clocks = <&gcc GCC_GP3_CLK_SRC>;
+		clocks = <&gcc GCC_GP3_CLK>;
+		pinctrl-0 = <&bklt_pwm_default>;
+		pinctrl-names = "default";
+	};
+
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&bklt_pwm 0 100000>;
+		power-supply = <&vreg_disp_3p3>;
+		enable-gpios = <&tlmm 2 GPIO_ACTIVE_HIGH>;
+		brightness-levels = <0 255>;
+		num-interpolated-steps = <255>;
+		default-brightness-level = <128>;
+	};
+
+	panel-lvds {
+		compatible = "auo,g133han01";
+		power-supply = <&vreg_disp_3p3>;
+		backlight = <&backlight>;
+
+		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_connector {
+	status = "disabled";
+};
+
+&i2c5 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	bridge@2c {
+		compatible = "ti,sn65dsi84";
+		reg = <0x2c>;
+		enable-gpios = <&tlmm 61 GPIO_ACTIVE_HIGH>;
+		interrupts-extended = <&tlmm 60 IRQ_TYPE_EDGE_FALLING>;
+		vcc-supply = <&vreg_s4a>;
+
+		pinctrl-0 = <&bridge_irq_pin &bridge_rst_pin>;
+		pinctrl-names = "default";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				sn65dsi84_in: endpoint {
+					remote-endpoint = <&mdss_dsi0_out>;
+					data-lanes = <1 2 3 4>;
+				};
+			};
+
+			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>;
+				};
+			};
+		};
+	};
+};
+
+&hdmi_bridge {
+	status = "disabled";
+};
+
+&tlmm {
+	bklt_pwm_default: bklt-pwm-default-state {
+		pins = "gpio59";
+		function = "gcc_gp";
+	};
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&sn65dsi84_in>;
+	data-lanes = <0 1 2 3>;
+};
diff --git a/arch/arm64/boot/dts/qcom/talos-lyra-evk.dts b/arch/arm64/boot/dts/qcom/talos-lyra-evk.dts
index ec5c10a40521..20967c294543 100644
--- a/arch/arm64/boot/dts/qcom/talos-lyra-evk.dts
+++ b/arch/arm64/boot/dts/qcom/talos-lyra-evk.dts
@@ -15,6 +15,7 @@ / {
 
 	aliases {
 		i2c2 = &i2c2;
+		i2c5 = &i2c5;
 	};
 
 	dp0-connector {

-- 
2.55.0