ARM: dts: rockchip: add RGA device node for RK3288

This patch add the RGA dt config of rk3288 SoC.
Signed-off-by: NJacob Chen <jacob-chen@iotwrt.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3288.dtsi

@@ -972,6 +972,17 @@
 		status = "disabled";
 	};
 
+	rga: rga@ff920000 {
+		compatible = "rockchip,rk3288-rga";
+		reg = <0x0 0xff920000 0x0 0x180>;
+		interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru ACLK_RGA>, <&cru HCLK_RGA>, <&cru SCLK_RGA>;
+		clock-names = "aclk", "hclk", "sclk";
+		power-domains = <&power RK3288_PD_VIO>;
+		resets = <&cru SRST_RGA_CORE>, <&cru SRST_RGA_AXI>, <&cru SRST_RGA_AHB>;
+		reset-names = "core", "axi", "ahb";
+	};
+
 	vopb: vop@ff930000 {
 		compatible = "rockchip,rk3288-vop";
 		reg = <0x0 0xff930000 0x0 0x19c>;