From 57a0c2d36c646a64c117de534b787abe0a0b8bcf Mon Sep 17 00:00:00 2001
From: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Date: Fri, 5 Dec 2025 17:12:54 +0200
Subject: [PATCH] arm64: dts: renesas: r9a09g087: Add DMAC support

The Renesas RZ/N2H (R9A09G087) SoC has three instances of the DMAC IP.

Add support for them.

Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251205151254.2970669-7-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/r9a09g087.dtsi | 90 ++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g087.dtsi b/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
index 9809a6a9c1c08..f3225694b4cb9 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g087.dtsi
@@ -342,6 +342,96 @@
 			status = "disabled";
 		};
 
+		dmac0: dma-controller@800c0000 {
+			compatible = "renesas,r9a09g087-dmac", "renesas,r9a09g077-dmac";
+			reg = <0 0x800c0000 0 0x1000>;
+			interrupts = <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 33 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 35 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 36 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 37 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 38 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 39 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 40 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 41 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 42 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 43 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 44 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 45 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 46 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 47 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "ch0", "ch1", "ch2", "ch3",
+					  "ch4", "ch5", "ch6", "ch7",
+					  "ch8", "ch9", "ch10", "ch11",
+					  "ch12", "ch13", "ch14", "ch15";
+			clocks = <&cpg CPG_CORE R9A09G087_CLK_PCLKH>;
+			power-domains = <&cpg>;
+			#dma-cells = <1>;
+			dma-channels = <16>;
+			renesas,icu = <&icu 0>;
+		};
+
+		dmac1: dma-controller@800c1000 {
+			compatible = "renesas,r9a09g087-dmac", "renesas,r9a09g077-dmac";
+			reg = <0 0x800c1000 0 0x1000>;
+			interrupts = <GIC_SPI 48 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 49 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 50 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 51 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 52 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 53 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 54 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 55 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 56 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 57 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 58 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 59 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 60 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 61 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 62 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 63 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "ch0", "ch1", "ch2", "ch3",
+					  "ch4", "ch5", "ch6", "ch7",
+					  "ch8", "ch9", "ch10", "ch11",
+					  "ch12", "ch13", "ch14", "ch15";
+			clocks = <&cpg CPG_CORE R9A09G087_CLK_PCLKH>;
+			power-domains = <&cpg>;
+			#dma-cells = <1>;
+			dma-channels = <16>;
+			renesas,icu = <&icu 1>;
+		};
+
+		dmac2: dma-controller@800c2000 {
+			compatible = "renesas,r9a09g087-dmac", "renesas,r9a09g077-dmac";
+			reg = <0 0x800c2000 0 0x1000>;
+			interrupts = <GIC_SPI 64 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 65 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 66 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 67 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 68 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 69 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 70 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 71 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 74 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 76 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 77 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 78 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 79 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "ch0", "ch1", "ch2", "ch3",
+					  "ch4", "ch5", "ch6", "ch7",
+					  "ch8", "ch9", "ch10", "ch11",
+					  "ch12", "ch13", "ch14", "ch15";
+			clocks = <&cpg CPG_CORE R9A09G087_CLK_PCLKH>;
+			power-domains = <&cpg>;
+			#dma-cells = <1>;
+			dma-channels = <16>;
+			renesas,icu = <&icu 2>;
+		};
+
 		gmac0: ethernet@80100000 {
 			compatible = "renesas,r9a09g087-gbeth", "renesas,r9a09g077-gbeth",
 				     "snps,dwmac-5.20";
-- 
2.47.3