From 8174dff9e583f7791dacf6d8ce034eb18ec2b292 Mon Sep 17 00:00:00 2001
From: Chris Morgan <macromorgan@hotmail.com>
Date: Mon, 20 Nov 2023 17:01:31 -0600
Subject: [PATCH] arm64: dts: rockchip: Add Anbernic RG351V

Add support for the Anbernic RG351V, which is a handheld gaming console
from Anbernic with an RK3326 SoC, a 640x480 LCD display, a single
analog joystick with several face buttons, two USB C ports, and
internal WiFi over USB. All hardware has been tested as working
except for the battery, which will require further modification to the
mainline rk817 battery driver before it can be used (the device was
built without a shunt resistor, and as such the battery cannot
measure current; only voltage).

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20231120230131.57705-4-macroalpha82@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm64/boot/dts/rockchip/Makefile         |  1 +
 .../dts/rockchip/rk3326-anbernic-rg351v.dts   | 44 +++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3326-anbernic-rg351v.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 41276ca535de..600c420bc550 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -9,6 +9,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-roc-cc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-rock-pi-s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3318-a95x-z2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-anbernic-rg351m.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-anbernic-rg351v.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go2.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go2-v11.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-odroid-go3.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3326-anbernic-rg351v.dts b/arch/arm64/boot/dts/rockchip/rk3326-anbernic-rg351v.dts
new file mode 100644
index 000000000000..c79f7a7b38cb
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3326-anbernic-rg351v.dts
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+#include "rk3326-anbernic-rg351m.dtsi"
+
+/ {
+	model = "Anbernic RG351V";
+	compatible = "anbernic,rg351v", "rockchip,rk3326";
+
+	gpio_keys_vol: gpio-keys-vol {
+		compatible = "gpio-keys";
+		autorepeat;
+
+		button-vol-down {
+			gpios = <&gpio2 RK_PA1 GPIO_ACTIVE_LOW>;
+			label = "VOLUMEDOWN";
+			linux,code = <KEY_VOLUMEDOWN>;
+		};
+
+		button-vol-up {
+			gpios = <&gpio2 RK_PA0 GPIO_ACTIVE_LOW>;
+			label = "VOLUMEUP";
+			linux,code = <KEY_VOLUMEUP>;
+		};
+	};
+};
+
+&internal_display {
+	compatible = "anbernic,rg351v-panel", "newvision,nv3051d";
+	vdd-supply = <&vcc_lcd>;
+};
+
+&io_domains {
+	vccio1-supply = <&vccio_sd>;
+};
+
+&vcc_sd {
+	regulator-max-microvolt = <3000000>;
+	regulator-min-microvolt = <1800000>;
+};
+
+&vccio_sd {
+	regulator-max-microvolt = <1800000>;
+};