[PATCH 3/7] arm64: dts: qcom: shikra-iqs-evk: Add AUO G133HAN01 LVDS panel overlay

[vishnu . saini]

From: Anand Tiwari <anand.tiwari@xxxxxxxxxxxxxxxx>

Add a DT overlay for IQS, to enable LVDS interface when LVDS daughter card
is connected to PDISP1 DSI0 on carrier card.
There is SN65DSI84 DSI-to-LVDS bridge on the daughter card which is
connected through I2C3 with reset and interrupt connected to tlmm GPIO76
and GPIO85.
Backlight is connected to gpio87 with pdm_pwm functionality. Currently this
is not supported in linux-next yet, so pull the gpio high.
Enable support for AUO G133HAN01 LVDS panel connected to this daughter card
and disable the default HDMI bridge and connector in favour of the LVDS
panel.

Signed-off-by: Anand Tiwari <anand.tiwari@xxxxxxxxxxxxxxxx>
Signed-off-by: Vishnu Saini <vishnu.saini@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/Makefile                  |   2 +
 .../qcom/shikra-iqs-evk-lvds-auo,g133han01.dtso    | 127 +++++++++++++++++++++
 2 files changed, 129 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 0c5a7b7f694b..610fe640471b 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -381,10 +381,12 @@ dtb-$(CONFIG_ARCH_QCOM)	+= shikra-iqs-evk-imx577-camera.dtb
 shikra-cqm-evk-hdmi-dtbs	:= shikra-cqm-evk.dtb shikra-cqm-cqs-evk-hdmi.dtbo
 shikra-cqs-evk-hdmi-dtbs	:= shikra-cqs-evk.dtb shikra-cqm-cqs-evk-hdmi.dtbo
 shikra-iqs-evk-dlc-panel-dtbs	:= shikra-iqs-evk.dtb shikra-iqs-evk-dlc-panel.dtbo
+shikra-iqs-evk-lvds-auo,g133han01-dtbs	:= shikra-iqs-evk.dtb shikra-iqs-evk-lvds-auo,g133han01.dtbo
 
 dtb-$(CONFIG_ARCH_QCOM)	+= shikra-cqm-evk-hdmi.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= shikra-cqs-evk-hdmi.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= shikra-iqs-evk-dlc-panel.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= shikra-iqs-evk-lvds-auo,g133han01.dtb
 
 dtb-$(CONFIG_ARCH_QCOM)	+= sm4250-oneplus-billie2.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= sm4450-qrd.dtb
diff --git a/arch/arm64/boot/dts/qcom/shikra-iqs-evk-lvds-auo,g133han01.dtso b/arch/arm64/boot/dts/qcom/shikra-iqs-evk-lvds-auo,g133han01.dtso
new file mode 100644
index 000000000000..80b9dcc92061
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/shikra-iqs-evk-lvds-auo,g133han01.dtso
@@ -0,0 +1,127 @@
+// 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 {
+		compatible = "gpio-backlight";
+		gpios = <&pm8150_gpios 1 GPIO_ACTIVE_HIGH>;
+		default-on;
+		pinctrl-0 = <&backlight_pwm>;
+		pinctrl-names = "default";
+	};
+
+	panel-lvds {
+		compatible = "auo,g133han01";
+		power-supply = <&vreg_lvds_3p3>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				dual-lvds-odd-pixels;
+
+				lvds_panel_out_a: endpoint {
+					remote-endpoint = <&sn65dsi84_out_a>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				dual-lvds-even-pixels;
+
+				lvds_panel_out_b: endpoint {
+					remote-endpoint = <&sn65dsi84_out_b>;
+				};
+			};
+		};
+	};
+
+	vreg_bridge_1p8: regulator-bridge-1p8 {
+		compatible = "regulator-fixed";
+		regulator-name = "vreg_bridge_1p8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	vreg_lvds_3p3: regulator-lvds-3p3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vreg_lvds_3p3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+};
+
+&hdmi_bridge {
+	status = "disabled";
+};
+
+&hdmi_connector {
+	status = "disabled";
+};
+
+&i2c3 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	bridge@2c {
+		compatible = "ti,sn65dsi84";
+		reg = <0x2c>;
+		enable-gpios = <&tlmm 76 GPIO_ACTIVE_HIGH>;
+		interrupts-extended = <&tlmm 85 IRQ_TYPE_EDGE_FALLING>;
+		vcc-supply = <&vreg_bridge_1p8>;
+		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 {
+					remote-endpoint = <&lvds_panel_out_a>;
+				};
+			};
+
+			port@3 {
+				reg = <3>;
+
+				sn65dsi84_out_b: endpoint {
+					remote-endpoint = <&lvds_panel_out_b>;
+				};
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&sn65dsi84_in>;
+};
+
+&tlmm {
+	backlight_pwm: backlight-pwm-state {
+		pins = "gpio87";
+		function = "gpio";
+		bias-pull-up;
+	};
+};

-- 
2.34.1