arm64: dts: allwinner: h700: Add RG35XX-H DTS

The RG35XX-H adds thumbsticks, a stereo speaker, and a second USB port to
the RG35XX-Plus, and has a horizontal form factor.

Enabled in this DTS:
- Thumbsticks
- Second USB port
Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20240427110225.727472-8-ryan@testtoast.comSigned-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>

arch/arm64/boot/dts/allwinner/Makefile

@@ -50,3 +50,4 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero3.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-transpeed-8k618-t.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h700-anbernic-rg35xx-2024.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h700-anbernic-rg35xx-plus.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h700-anbernic-rg35xx-h.dtb

arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Copyright (C) 2024 Ryan Walklin <ryan@testtoast.com>.
+ * Copyright (C) 2024 Chris Morgan <macroalpha82@gmail.com>.
+ */
+
+#include "sun50i-h700-anbernic-rg35xx-plus.dts"
+
+/ {
+	model = "Anbernic RG35XX H";
+	compatible = "anbernic,rg35xx-h", "allwinner,sun50i-h700";
+};
+
+&gpio_keys_gamepad {
+	button-thumbl {
+		label = "GPIO Thumb Left";
+		gpios = <&pio 4 8 GPIO_ACTIVE_LOW>; /* PE8 */
+		linux,input-type = <EV_KEY>;
+		linux,code = <BTN_THUMBL>;
+	};
+
+	button-thumbr {
+		label = "GPIO Thumb Right";
+		gpios = <&pio 4 9 GPIO_ACTIVE_LOW>; /* PE9 */
+		linux,input-type = <EV_KEY>;
+		linux,code = <BTN_THUMBR>;
+	};
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};