[PATCH 1/3] arm64: dts: rockchip: Add Radxa ROCK 4C+ DSI DT-overlay

[Jagan Teki <jagan@edgeble.ai>]

Add DSI pipeline for Radxa ROCK 4C+ board via DT-overlay.

The DSI connector in Radxa ROCK 4C+ board support different
resolution panels and those compatible is added in another
DT-overlay.

Signed-off-by: Jagan Teki <jagan@edgeble.ai>
---
 arch/arm64/boot/dts/rockchip/Makefile         |  1 +
 .../rk3399-rock-4c-plus-mipi-dsi.dtso         | 69 +++++++++++++++++++
 2 files changed, 70 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus-mipi-dsi.dtso

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 1ebbb3e9c2f9..3a4c4cd769eb 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -58,6 +58,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-roc-pc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-roc-pc-mezzanine.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-roc-pc-plus.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rock-4c-plus.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rock-4c-plus-mipi-dsi.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rock-4se.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rock-pi-4a.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rock-pi-4a-plus.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus-mipi-dsi.dtso b/arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus-mipi-dsi.dtso
new file mode 100644
index 000000000000..271717040b6c
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus-mipi-dsi.dtso
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2023 Radxa Computer Co., Ltd.
+ * Copyright (c) 2023 Edgeble AI Technologies Pvt. Ltd.
+ *
+ * DT-overlay for Radxa ROCK 4C+ DSI Connector.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+
+&{/} {
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm2 0 25000 0>;
+	};
+};
+
+&mipi_dsi {
+	clock-master;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mipi_out: port@1 {
+			reg = <1>;
+
+			mipi_out_panel: endpoint {
+				remote-endpoint = <&mipi_in_panel>;
+			};
+		};
+	};
+
+	panel: panel@0 {
+		/* different resolution panels are used, compatibles are in DTO */
+		reg = <0>;
+		backlight = <&backlight>;
+		vdd-supply = <&lcd_3v3>;
+		vccio-supply = <&vcc_1v8_s0>;
+		reset-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&lcd_panel_reset>;
+
+		port {
+			mipi_in_panel: endpoint {
+				remote-endpoint = <&mipi_out_panel>;
+			};
+		};
+	};
+};
+
+&pinctrl {
+	lcd {
+		lcd_panel_reset: lcd-panel-reset {
+			rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+};
+
+&pwm2 {
+	status = "okay";
+};
-- 
2.25.1