[PATCH 6/7] arm64: dts: qcom: lemans-draco-evk: Add RPi 7-inch DSI panel overlay

[mohit.dsor@oss.qualcomm.com]

From: Vishnu Saini <vishnu.saini@oss.qualcomm.com>

Add a DT overlay to enable Raspberry Pi 7-inch DSI panel connected
to JDSIP1 22pin connector on the carrier card.

DSI0 from SoC is routed through MUX which can be selected by DIP
switch for enabling this 22pin connector. Add the regulator and
backlight controller at I2C1 mux channel 0 address 0x45, panel power
and reset control, and a 2-lane DSI connection. DIP Switch SW2.4 need
to be OFF for this to work.

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

Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
Signed-off-by: Mohit Dsor <mohit.dsor@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/Makefile                  |  4 +
 .../lemans-draco-evk-raspberrypi-dsi-7inch.dtso    | 98 ++++++++++++++++++++++
 2 files changed, 102 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index b50b38c15c6b..b100340e61d1 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -69,6 +69,10 @@ 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-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-lvds-auo,g133han01.dtbo
+
+lemans-draco-evk-raspberrypi-dsi-7inch-dtbs := lemans-draco-evk.dtb lemans-draco-evk-raspberrypi-dsi-7inch.dtbo
+dtb-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-raspberrypi-dsi-7inch.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= lemans-draco-evk-raspberrypi-dsi-7inch.dtbo
 dtb-$(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-raspberrypi-dsi-7inch.dtso b/arch/arm64/boot/dts/qcom/lemans-draco-evk-raspberrypi-dsi-7inch.dtso
new file mode 100644
index 000000000000..ec172be7ce5f
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/lemans-draco-evk-raspberrypi-dsi-7inch.dtso
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+&{/} {
+	display_bl: backlight {
+		compatible = "pwm-backlight";
+		power-supply = <&reg_dsi_panel>;
+		pwms = <&mcu 0 255 0>;
+	};
+
+	reg_dsi_panel: regulator-dsi-panel {
+		compatible = "regulator-fixed";
+		regulator-name = "rpi-dsi-panel";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_dsi_touch: regulator-dsi-touch {
+		compatible = "regulator-fixed";
+		gpio = <&mcu 1 GPIO_ACTIVE_HIGH>;
+		regulator-name = "rpi-touch";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <50000>;
+		enable-active-high;
+	};
+};
+
+&hdmi_bridge {
+	status = "disabled";
+};
+
+&hdmi_connector {
+	status = "disabled";
+};
+
+
+&i2c1 {
+	i2c-mux@70 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			mcu: gpio@45 {
+				compatible = "raspberrypi,touchscreen-panel-regulator-v2";
+				reg = <0x45>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				#pwm-cells = <3>;
+			};
+
+			touchscreen@5d {
+				compatible = "goodix,gt911";
+				reg = <0x5d>;
+				AVDD28-supply = <&reg_dsi_touch>;
+				touchscreen-size-x = <720>;
+				touchscreen-size-y = <1280>;
+			};
+		};
+	};
+};
+
+&mdss0_dsi0 {
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	panel@0 {
+		compatible = "raspberrypi,dsi-7inch", "ilitek,ili9881c";
+		reg = <0>;
+
+		backlight = <&display_bl>;
+		power-supply = <&reg_dsi_panel>;
+		reset-gpios = <&mcu 0 GPIO_ACTIVE_LOW>;
+
+		port {
+			panel0_in: endpoint {
+				remote-endpoint = <&mdss0_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss0_dsi0_out {
+	remote-endpoint = <&panel0_in>;
+	data-lanes = <0 1>;
+};

-- 
2.34.1