[PATCH 4/8] ARM: dts: imx7s: add dma support

tyler at opensourcefoundries.com tyler at opensourcefoundries.com
Thu Nov 30 12:14:30 PST 2017


From: Tyler Baker <tyler at opensourcefoundries.com>

Enable dma on all SPI and UART interfaces.

Signed-off-by: Tyler Baker <tyler at opensourcefoundries.com>
---
 arch/arm/boot/dts/imx7s.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
index 82ad26e..7b85659 100644
--- a/arch/arm/boot/dts/imx7s.dtsi
+++ b/arch/arm/boot/dts/imx7s.dtsi
@@ -700,6 +700,8 @@
 				clocks = <&clks IMX7D_ECSPI1_ROOT_CLK>,
 					<&clks IMX7D_ECSPI1_ROOT_CLK>;
 				clock-names = "ipg", "per";
+				dmas = <&sdma 0 7 1>, <&sdma 1 7 2>;
+				dma-names = "rx", "tx";
 				status = "disabled";
 			};
 
@@ -712,6 +714,8 @@
 				clocks = <&clks IMX7D_ECSPI2_ROOT_CLK>,
 					<&clks IMX7D_ECSPI2_ROOT_CLK>;
 				clock-names = "ipg", "per";
+				dmas = <&sdma 2 7 1>, <&sdma 3 7 2>;
+				dma-names = "rx", "tx";
 				status = "disabled";
 			};
 
@@ -724,6 +728,8 @@
 				clocks = <&clks IMX7D_ECSPI3_ROOT_CLK>,
 					<&clks IMX7D_ECSPI3_ROOT_CLK>;
 				clock-names = "ipg", "per";
+				dmas = <&sdma 4 7 1>, <&sdma 5 7 2>;
+				dma-names = "rx", "tx";
 				status = "disabled";
 			};
 
-- 
2.9.3




More information about the linux-arm-kernel mailing list