linux-kernel - [PATCH v4 10/11] arm64: allwinner: a64: add dma controller references to spi nodes

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Message-ID: <c54acd7f-a75c-4053-a5f3-f9a14f1d2e5b@rwthex-w2-a.rwth-ad.de>
Date:   Thu, 28 Sep 2017 03:49:27 +0200
From:   Stefan Brüns <stefan.bruens@...h-aachen.de>
To:     <linux-sunxi@...glegroups.com>
CC:     <devicetree@...r.kernel.org>, Chen-Yu Tsai <wens@...e.org>,
        Andre Przywara <andre.przywara@....com>,
        <linux-kernel@...r.kernel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Vinod Koul <vinod.koul@...el.com>,
        Rob Herring <robh+dt@...nel.org>, <dmaengine@...r.kernel.org>,
        Code Kipper <codekipper@...il.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        Stefan Brüns <stefan.bruens@...h-aachen.de>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH v4 10/11] arm64: allwinner: a64: add dma controller references to spi nodes

The spi controller nodes omit the dma controller/channel references, add
it.

This does not yet enable DMA for SPI transfers, as the spi-sun6i driver
lacks support for DMA, but always uses PIO to the FIFO.

Signed-off-by: Stefan Brüns <stefan.bruens@...h-aachen.de>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index cbffefce0e71..a6a5a40d76d0 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -476,6 +476,8 @@
 			interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>;
 			clock-names = "ahb", "mod";
+			dmas = <&dma 23>, <&dma 23>;
+			dma-names = "rx", "tx";
 			pinctrl-names = "default";
 			pinctrl-0 = <&spi0_pins>;
 			resets = <&ccu RST_BUS_SPI0>;
@@ -491,6 +493,8 @@
 			interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>;
 			clock-names = "ahb", "mod";
+			dmas = <&dma 24>, <&dma 24>;
+			dma-names = "rx", "tx";
 			pinctrl-names = "default";
 			pinctrl-0 = <&spi1_pins>;
 			resets = <&ccu RST_BUS_SPI1>;
-- 
2.14.1