ARM: dts: sunxi: h3/h5: Add r_i2c I2C controller

Allwinner H3/H5 SoCs have an I2C controller at PL GPIO bank.

Add support for it in the device tree.
Signed-off-by: Ondrej Jirman <megous@megous.com>
[Icenowy: Change to use r_ccu and change pinmux node name]
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

arch/arm/boot/dts/sunxi-h3-h5.dtsi

@@ -822,6 +822,19 @@ ir: ir@1f02000 {
 			status = "disabled";
 		};
 
+		r_i2c: i2c@1f02400 {
+			compatible = "allwinner,sun6i-a31-i2c";
+			reg = <0x01f02400 0x400>;
+			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&r_i2c_pins>;
+			clocks = <&r_ccu CLK_APB0_I2C>;
+			resets = <&r_ccu RST_APB0_I2C>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
 		r_pio: pinctrl@1f02c00 {
 			compatible = "allwinner,sun8i-h3-r-pinctrl";
 			reg = <0x01f02c00 0x400>;