linux-kernel - [PATCH 2/2] ARM: dts: sun8i: r40: Add DMA node

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Message-Id: <20200825100030.1145356-3-jernej.skrabec@siol.net>
Date:   Tue, 25 Aug 2020 12:00:30 +0200
From:   Jernej Skrabec <jernej.skrabec@...l.net>
To:     robh+dt@...nel.org, mripard@...nel.org, wens@...e.org
Cc:     vkoul@...nel.org, dmaengine@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: [PATCH 2/2] ARM: dts: sun8i: r40: Add DMA node

Allwinner R40 SoC has DMA with 16 channels and 31 request sources.

Add a node for it.

Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>
---
 arch/arm/boot/dts/sun8i-r40.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index b82031b19893..d481fe7989b8 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -198,6 +198,18 @@ nmi_intc: interrupt-controller@...0030 {
 			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
+		dma: dma-controller@...2000 {
+			compatible = "allwinner,sun8i-r40-dma",
+				     "allwinner,sun50i-a64-dma";
+			reg = <0x01c02000 0x1000>;
+			interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_DMA>;
+			dma-channels = <16>;
+			dma-requests = <31>;
+			resets = <&ccu RST_BUS_DMA>;
+			#dma-cells = <1>;
+		};
+
 		spi0: spi@...5000 {
 			compatible = "allwinner,sun8i-r40-spi",
 				     "allwinner,sun8i-h3-spi";
-- 
2.28.0