linux-kernel - [PATCH 1/1] arm64: dts: imx8-ss-dma: enable dma support for lpspi

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Message-Id: <20240729094511.159467-1-alexander.stein@ew.tq-group.com>
Date: Mon, 29 Jul 2024 11:45:10 +0200
From: Alexander Stein <alexander.stein@...tq-group.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>
Cc: Clark Wang <xiaoning.wang@....com>,
	Alexander Stein <alexander.stein@...tq-group.com>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] arm64: dts: imx8-ss-dma: enable dma support for lpspi

From: Clark Wang <xiaoning.wang@....com>

Add DMA configurations for LPSPI nodes on i.MX8QX/QM/DXL.

Signed-off-by: Clark Wang <xiaoning.wang@....com>
Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
---
Using the DMA configuration bits from downstream kernel.
Tested on TQMa8XxS.

 arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
index 1ee9496c988c5..8ae5f065b4180 100644
--- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
@@ -34,6 +34,8 @@ lpspi0: spi@...00000 {
 		assigned-clocks = <&clk IMX_SC_R_SPI_0 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;
 		power-domains = <&pd IMX_SC_R_SPI_0>;
+		dma-names = "tx","rx";
+		dmas = <&edma2 1 0 0>, <&edma2 0 0 FSL_EDMA_RX>;
 		status = "disabled";
 	};
 
@@ -50,6 +52,8 @@ lpspi1: spi@...10000 {
 		assigned-clocks = <&clk IMX_SC_R_SPI_1 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;
 		power-domains = <&pd IMX_SC_R_SPI_1>;
+		dma-names = "tx","rx";
+		dmas = <&edma2 3 0 0>, <&edma2 2 0 FSL_EDMA_RX>;
 		status = "disabled";
 	};
 
@@ -66,6 +70,8 @@ lpspi2: spi@...20000 {
 		assigned-clocks = <&clk IMX_SC_R_SPI_2 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;
 		power-domains = <&pd IMX_SC_R_SPI_2>;
+		dma-names = "tx","rx";
+		dmas = <&edma2 5 0 0>, <&edma2 4 0 FSL_EDMA_RX>;
 		status = "disabled";
 	};
 
@@ -82,6 +88,8 @@ lpspi3: spi@...30000 {
 		assigned-clocks = <&clk IMX_SC_R_SPI_3 IMX_SC_PM_CLK_PER>;
 		assigned-clock-rates = <60000000>;
 		power-domains = <&pd IMX_SC_R_SPI_3>;
+		dma-names = "tx","rx";
+		dmas = <&edma2 7 0 0>, <&edma2 6 0 FSL_EDMA_RX>;
 		status = "disabled";
 	};
 
-- 
2.34.1