first attempt to enable the RGA2 (enhanced) block in the rk3566 from the Pinenote

rga.patch

diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
index 194f6141997d..1ec932c5293d 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -593,6 +593,23 @@ gpu: gpu@fde60000 {
                status = "disabled";
        };
 
+       rk_rga: rk_rga@fdeb0000 {
+               compatible = "rockchip,rga2";
+               reg = <0x0 0xfdeb0000 0x0 0x1000>;
+               interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&cru ACLK_RGA>, <&cru HCLK_RGA>, <&cru CLK_RGA_CORE>;
+               clock-names = "aclk_rga", "hclk_rga", "clk_rga";
+               power-domains = <&power RK3568_PD_RGA>;
+               /* 754 #define SRST_A_RGA      292 */
+               /* 755 #define SRST_H_RGA      293 */
+               /* 756 #define SRST_RGA_CORE       294 */
+               resets = <&cru SRST_RGA_CORE>, <&cru SRST_A_RGA>, <&cru SRST_H_RGA>;
+               reset-names = "core", "axi", "ahb";
+               // from the documenation:
+               // dma-coherent;
+               status = "Ok";
+       };
+