From: Samuel Holland <samuel@sholland.org>
To: Pavel Machek <pavel@ucw.cz>, Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
linux-leds@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, linux-riscv@lists.infradead.org,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
devicetree@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
Samuel Holland <samuel@sholland.org>,
Yangtao Li <frank@allwinnertech.com>
Subject: [PATCH v5 3/6] arm64: dts: allwinner: a100: Add device node for DMA controller
Date: Fri, 26 Aug 2022 00:09:39 -0500 [thread overview]
Message-ID: <20220826050942.20067-4-samuel@sholland.org> (raw)
In-Reply-To: <20220826050942.20067-1-samuel@sholland.org>
From: Yangtao Li <frank@allwinnertech.com>
The A100 SoC has a DMA controller that supports 8 DMA channels
to and from various peripherals.
Add a device node for it.
Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
---
Changes in v5:
- New patch for v5, needed since the LEDC binding requires DMA
- From previous submission: fixed off-by-one in dma-requests property
arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
index 548539c93ab0..5453a3bb7d81 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
@@ -101,6 +101,18 @@ ccu: clock@3001000 {
#reset-cells = <1>;
};
+ dma: dma-controller@3002000 {
+ compatible = "allwinner,sun50i-a100-dma";
+ reg = <0x03002000 0x1000>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DMA>, <&ccu CLK_MBUS_DMA>;
+ clock-names = "bus", "mbus";
+ resets = <&ccu RST_BUS_DMA>;
+ dma-channels = <8>;
+ dma-requests = <52>;
+ #dma-cells = <1>;
+ };
+
gic: interrupt-controller@3021000 {
compatible = "arm,gic-400";
reg = <0x03021000 0x1000>, <0x03022000 0x2000>,
--
2.35.1
next prev parent reply other threads:[~2022-08-26 5:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-26 5:09 [PATCH v5 0/6] leds: Allwinner A100 LED controller support Samuel Holland
2022-08-26 5:09 ` [PATCH v5 1/6] dt-bindings: leds: Add Allwinner A100 LED controller Samuel Holland
2022-08-26 5:09 ` [PATCH v5 2/6] leds: sun50i-a100: New driver for the " Samuel Holland
2022-08-26 5:09 ` Samuel Holland [this message]
2022-08-26 5:09 ` [PATCH v5 4/6] arm64: dts: allwinner: a100: Add LED controller node Samuel Holland
2022-08-26 5:09 ` [PATCH v5 5/6] riscv: dts: allwinner: d1: " Samuel Holland
2022-08-26 5:09 ` [PATCH v5 6/6] riscv: dts: allwinner: d1: Add RGB LEDs to boards Samuel Holland
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