Commit 578e75d1 authored by Sebastian Krzyszkowiak's avatar Sebastian Krzyszkowiak Committed by Shawn Guo
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arm64: dts: imx8mq: Add UART DMA support 



UART ports have DMA capability. Describe the UART DMA properties.

Signed-off-by: default avatarSebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 3d274f8b

arch/arm64/boot/dts/freescale/imx8mq.dtsi

+8 −0
Original line number Diff line number Diff line
@@ -940,6 +940,8 @@ 
				clocks = <&clk IMX8MQ_CLK_UART1_ROOT>,

				         <&clk IMX8MQ_CLK_UART1_ROOT>;

				clock-names = "ipg", "per";

				dmas = <&sdma1 22 4 0>, <&sdma1 23 4 0>;

				dma-names = "rx", "tx";

				status = "disabled";

			};
@@ -951,6 +953,8 @@ 
				clocks = <&clk IMX8MQ_CLK_UART3_ROOT>,

				         <&clk IMX8MQ_CLK_UART3_ROOT>;

				clock-names = "ipg", "per";

				dmas = <&sdma1 26 4 0>, <&sdma1 27 4 0>;

				dma-names = "rx", "tx";

				status = "disabled";

			};
@@ -962,6 +966,8 @@ 
				clocks = <&clk IMX8MQ_CLK_UART2_ROOT>,

				         <&clk IMX8MQ_CLK_UART2_ROOT>;

				clock-names = "ipg", "per";

				dmas = <&sdma1 24 4 0>, <&sdma1 25 4 0>;

				dma-names = "rx", "tx";

				status = "disabled";

			};
@@ -1157,6 +1163,8 @@ 
				clocks = <&clk IMX8MQ_CLK_UART4_ROOT>,

				         <&clk IMX8MQ_CLK_UART4_ROOT>;

				clock-names = "ipg", "per";

				dmas = <&sdma1 28 4 0>, <&sdma1 29 4 0>;

				dma-names = "rx", "tx";

				status = "disabled";

			};