[PATCH v4 27/27] arm64: dts: rockchip: add rga3 dt nodes

From: Sven Püschel

Date: Wed Mar 25 2026 - 11:49:47 EST


Add devicetree nodes for the RGA3 (Raster Graphics Acceleration 3)
peripheral in the RK3588.

The existing rga node refers to the RGA2-Enhanced peripheral. The RK3588
contains one RGA2-Enhanced core and two RGA3 cores. Both feature a similar
functionality of scaling, cropping and rotating of up to two input
images into one output image. Key differences of the RGA3 are:

- supports 10bit YUV output formats
- supports 8x8 tiles and FBCD as inputs and outputs
- supports BT2020 color space conversion
- max output resolution of (8192-64)x(8192-64)
- MMU can map up to 32G DDR RAM
- fully planar formats (3 planes) are not supported
- max scale up/down factor of 8 (RGA2 allows up to 16)

Signed-off-by: Sven Püschel <s.pueschel@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3588-base.dtsi | 44 +++++++++++++++++++++++++++
1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
index 7fe9593d8c198..87334636544f8 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
@@ -1273,6 +1273,50 @@ rga: rga@fdb80000 {
power-domains = <&power RK3588_PD_VDPU>;
};

+ rga3_core0: rga@fdb60000 {
+ compatible = "rockchip,rk3588-rga3";
+ reg = <0x0 0xfdb60000 0x0 0x200>;
+ interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru ACLK_RGA3_0>, <&cru HCLK_RGA3_0>, <&cru CLK_RGA3_0_CORE>;
+ clock-names = "aclk", "hclk", "sclk";
+ resets = <&cru SRST_RGA3_0_CORE>, <&cru SRST_A_RGA3_0>, <&cru SRST_H_RGA3_0>;
+ reset-names = "core", "axi", "ahb";
+ power-domains = <&power RK3588_PD_RGA30>;
+ iommus = <&rga3_0_mmu>;
+ };
+
+ rga3_0_mmu: iommu@fdb60f00 {
+ compatible = "rockchip,rk3588-iommu", "rockchip,rk3568-iommu";
+ reg = <0x0 0xfdb60f00 0x0 0x100>;
+ interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru ACLK_RGA3_0>, <&cru HCLK_RGA3_0>;
+ clock-names = "aclk", "iface";
+ #iommu-cells = <0>;
+ power-domains = <&power RK3588_PD_RGA30>;
+ };
+
+ rga3_core1: rga@fdb70000 {
+ compatible = "rockchip,rk3588-rga3";
+ reg = <0x0 0xfdb70000 0x0 0x200>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru ACLK_RGA3_1>, <&cru HCLK_RGA3_1>, <&cru CLK_RGA3_1_CORE>;
+ clock-names = "aclk", "hclk", "sclk";
+ resets = <&cru SRST_RGA3_1_CORE>, <&cru SRST_A_RGA3_1>, <&cru SRST_H_RGA3_1>;
+ reset-names = "core", "axi", "ahb";
+ power-domains = <&power RK3588_PD_RGA31>;
+ iommus = <&rga3_1_mmu>;
+ };
+
+ rga3_1_mmu: iommu@fdb70f00 {
+ compatible = "rockchip,rk3588-iommu", "rockchip,rk3568-iommu";
+ reg = <0x0 0xfdb70f00 0x0 0x100>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&cru ACLK_RGA3_1>, <&cru HCLK_RGA3_1>;
+ clock-names = "aclk", "iface";
+ #iommu-cells = <0>;
+ power-domains = <&power RK3588_PD_RGA31>;
+ };
+
vepu121_0: video-codec@fdba0000 {
compatible = "rockchip,rk3588-vepu121";
reg = <0x0 0xfdba0000 0x0 0x800>;

--
2.53.0