MIPS: ingenic: Add support for new JZ4770 based boards

Add support for the YLM (known as the Anbernic in the western
world) RG-280V, RG-280M, RG-300X, RG-350, RG-350M, and the Wolsen
PocketGo2 (aka. PlayGo) Rev. 1 & 2.

The YLM RG-280V is almost a carbon copy of the GCW-Zero, with a
different LCD panel (320x480 non-square pixels in diamond pattern),
L2/R2 and Vol +/- buttons added, and with the analog stick, ACT8600
regulator, RDA5807 radio, MXC6225 accelerometer, ITE6610 HDMI chips
removed.

The YLM RG-280M is a RG-280V with a clickable analog stick.

The Wolsen PocketGo2 Rev. 1 & 2 are similar to the RG-280V, with a
proper 320x240 IPS screen this time.

The RG-350 is a RG-280M with two clickable analog sticks, a proper
320x240 IPS screen, and a ITE66121 HDMI chip added.

The RG-350M is a RG-350 with a 640x480 IPS screen.

The RG-300X is a RG-350 without joysticks.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>

arch/mips/boot/dts/ingenic/jz4770.dtsi

@@ -454,6 +454,19 @@
 
 		clocks = <&cgu JZ4770_CLK_LPCLK_MUX>;
 		clock-names = "lcd_pclk";
+
+		lcd_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@8 {
+				reg = <8>;
+
+				ipu_output: endpoint {
+					remote-endpoint = <&ipu_input>;
+				};
+			};
+		};
 	};
 
 	ipu: ipu@13080000 {
@@ -465,6 +478,12 @@
 
 		clocks = <&cgu JZ4770_CLK_IPU>;
 		clock-names = "ipu";
+
+		port {
+			ipu_input: endpoint {
+				remote-endpoint = <&ipu_output>;
+			};
+		};
 	};
 
 	vpu: video-decoder@132a0000 {

arch/mips/boot/dts/ingenic/pocketgo2.dts

@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "bits/gcw0-base.dtsi"
+
+/ {
+	compatible = "wolsen,pocketgo2", "ingenic,jz4770";
+	model = "Wolsen PocketGo2/PlayGo";
+
+	panel {
+		compatible = "frida,frd350h54004";
+
+		reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
+
+		backlight = <&backlight>;
+		power-supply = <&vcc>;
+
+		port {
+			panel_input: endpoint {
+				remote-endpoint = <&panel_output>;
+			};
+		};
+	};
+};
+
+&gpio_keys {
+	btn13: button@13 {
+		label = "L2 shoulder button";
+		linux,code = <KEY_PAGEUP>;
+		linux,can-disable;
+		gpios = <&gpd 31 GPIO_ACTIVE_LOW>;
+	};
+
+	btn14: button@14 {
+		label = "R2 shoulder button";
+		linux,code = <KEY_PAGEDOWN>;
+		linux,can-disable;
+		gpios = <&gpf 10 GPIO_ACTIVE_LOW>;
+	};
+
+	btn15: button@15 {
+		label = "Volume+ button";
+		linux,code = <KEY_VOLUMEUP>;
+		linux,can-disable;
+		gpios = <&gpd 19 GPIO_ACTIVE_LOW>;
+	};
+
+	btn16: button@16 {
+		label = "Volume- button";
+		linux,code = <KEY_VOLUMEDOWN>;
+		linux,can-disable;
+		gpios = <&gpe 13 GPIO_ACTIVE_LOW>;
+	};
+
+	btn17: button@17 {
+		label = "Menu button";
+		linux,code = <KEY_HOME>;
+		linux,can-disable;
+		gpios = <&gpe 8 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&lcd_ports {
+	port@0 {
+		reg = <0>;
+
+		panel_output: endpoint {
+			remote-endpoint = <&panel_input>;
+		};
+	};
+};

arch/mips/boot/dts/ingenic/pocketgo2v2.dts

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "pocketgo2.dts"
+
+/ {
+	compatible = "wolsen,pocketgo2v2", "ingenic,jz4770";
+	model = "Wolsen PocketGo2/PlayGo Rev. 2";
+};
+
+&sound_card {
+	simple-audio-card,widgets =
+		"Speaker", "Speaker",
+		"Headphone", "Headphones";
+	simple-audio-card,routing =
+		"Headphones Amp INL", "LHPOUT",
+		"Headphones Amp INR", "RHPOUT",
+		"Headphones", "Headphones Amp OUTL",
+		"Headphones", "Headphones Amp OUTR",
+		"Speaker Amp INL", "Headphones Amp OUTL",
+		"Speaker Amp INR", "Headphones Amp OUTR",
+		"Speaker", "Speaker Amp OUTL",
+		"Speaker", "Speaker Amp OUTR";
+	simple-audio-card,pin-switches = "Speaker";
+};
+
+&joystick {
+	io-channels = <&adc INGENIC_ADC_TOUCH_YP>,
+		      <&adc INGENIC_ADC_TOUCH_XP>;
+};
+
+&js_axis0 {
+	abs-range = <3000 200>;
+};
+
+&js_axis1 {
+	abs-range = <3000 200>;
+};

arch/mips/boot/dts/ingenic/rg280m.dts

@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "rg280v.dts"
+
+/ {
+	compatible = "ylm,rg280m", "ingenic,jz4770";
+	model = "Anbernic RG-280M";
+};
+
+&joystick {
+	status = "okay";
+
+	io-channels = <&adc INGENIC_ADC_TOUCH_YP>,
+		      <&adc INGENIC_ADC_TOUCH_XP>;
+};
+
+&js_axis0 {
+	abs-range = <3000 200>;
+};
+
+&js_axis1 {
+	abs-range = <3000 200>;
+};
+
+&sound_card {
+	simple-audio-card,routing =
+		"Headphones Amp INL", "LHPOUT",
+		"Headphones Amp INR", "RHPOUT",
+		"Headphones", "Headphones Amp OUTL",
+		"Headphones", "Headphones Amp OUTR",
+		"Speaker Amp INL", "Headphones Amp OUTL",
+		"Speaker Amp INR", "Headphones Amp OUTR",
+		"Speaker", "Speaker Amp OUTL",
+		"Speaker", "Speaker Amp OUTR";
+};
+
+&gpio_keys {
+	btn17: button@17 {
+		label = "L3 joystick button";
+		linux,code = <KEY_KPSLASH>;
+		linux,can-disable;
+		gpios = <&gpb 14 GPIO_ACTIVE_LOW>;
+	};
+};

arch/mips/boot/dts/ingenic/rg280v.dts

@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "bits/gcw0-base.dtsi"
+
+/ {
+	compatible = "ylm,rg280v", "ingenic,jz4770";
+	model = "Anbernic RG-280V";
+
+	rumble: rumble {
+		compatible = "pwm-vibrator";
+		pwms = <&pwm 4 2000000 0>;
+		pwm-names = "enable";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pins_pwm4>;
+	};
+};
+
+&joystick {
+	status = "disabled";
+};
+
+&btn8 {
+	gpios = <&gpb 10 GPIO_ACTIVE_LOW>;
+};
+
+&gpio_keys {
+	btn13: button@13 {
+		label = "L2 shoulder button";
+		linux,code = <KEY_PAGEUP>;
+		linux,can-disable;
+		gpios = <&gpb 20 GPIO_ACTIVE_LOW>;
+	};
+
+	btn14: button@14 {
+		label = "R2 shoulder button";
+		linux,code = <KEY_PAGEDOWN>;
+		linux,can-disable;
+		gpios = <&gpb 11 GPIO_ACTIVE_LOW>;
+	};
+
+	btn15: button@15 {
+		label = "Volume+ button";
+		linux,code = <KEY_VOLUMEUP>;
+		linux,can-disable;
+		gpios = <&gpb 12 GPIO_ACTIVE_LOW>;
+	};
+
+	btn16: button@16 {
+		label = "Volume- button";
+		linux,code = <KEY_VOLUMEDOWN>;
+		linux,can-disable;
+		gpios = <&gpb 13 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&sound_card {
+	simple-audio-card,widgets =
+		"Speaker", "Speaker",
+		"Headphone", "Headphones";
+	simple-audio-card,routing =
+		"Headphones Amp INL", "LHPOUT",
+		"Headphones Amp INR", "RHPOUT",
+		"Headphones", "Headphones Amp OUTL",
+		"Headphones", "Headphones Amp OUTR",
+		"Speaker Amp INL", "LOUT",
+		"Speaker Amp INR", "ROUT",
+		"Speaker", "Speaker Amp OUTL",
+		"Speaker", "Speaker Amp OUTR";
+	simple-audio-card,pin-switches = "Speaker";
+};
+
+&pinctrl {
+	pins_pwm4: pwm4 {
+		function = "pwm4";
+		groups = "pwm4";
+	};
+};
+
+&spi0_gpio {
+	status = "okay";
+
+	panel: panel@0 {
+		compatible = "abt,y030xx067a";
+		reg = <0>;
+
+		spi-max-frequency = <3125000>;
+		spi-3wire;
+
+		reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
+
+		backlight = <&backlight>;
+		power-supply = <&vcc>;
+
+		port {
+			panel_input: endpoint {
+				remote-endpoint = <&panel_output>;
+			};
+		};
+	};
+};
+
+&pins_lcd {
+	groups = "lcd-8bit";
+};
+
+&lcd_ports {
+	lcd_port0: port@0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0>;
+
+		panel_output: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&panel_input>;
+		};
+	};
+};

arch/mips/boot/dts/ingenic/rg300x.dts

@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "rg350m.dts"
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "ylm,rg300x", "ingenic,jz4770";
+	model = "Anbernic RG-300X";
+};
+
+&panel {
+	compatible = "focaltech,gpt3";
+};
+
+&btn17 {
+	status = "disabled";
+};
+
+&btn18 {
+	status = "disabled";
+};
+
+&joystick {
+	status = "disabled";
+};

arch/mips/boot/dts/ingenic/rg350.dts

@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+
+#include "rg350m.dts"
+
+/ {
+	compatible = "ylm,rg350", "ingenic,jz4770";
+	model = "Anbernic RG-350";
+
+	panel {
+		compatible = "frida,frd350h54004";
+
+		reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
+
+		backlight = <&backlight>;
+		power-supply = <&vcc>;
+
+		port {
+			frida_input: endpoint {
+				remote-endpoint = <&panel_output>;
+			};
+		};
+	};
+};
+
+&panel {
+	status = "disabled";
+};
+
+&spi0_gpio {
+	status = "disabled";
+};
+
+/* Make ABT panel port a dummy to avoid DTC complaints */
+&panel_input {
+	remote-endpoint = <&panel_input>;
+};
+
+&panel_output {
+	remote-endpoint = <&frida_input>;
+};