[PATCH 1/2] arm64: dts: imx8mm: Configure DMA on UART2

[Adam Ford]

UART2 is often used as the console, so the DMA was likely left
off on purpose, since it's recomended to not use the DMA on the
console. Beacause, the driver checks to see if the UART is used for
the console when determining if it should initialize DMA, it
should be safe to enable DMA on UART2 for all users.

Signed-off-by: Adam Ford <aford173 at gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index cfebaa01217e..ded89b046970 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -915,6 +915,8 @@ uart2: serial at 30890000 {
 					clocks = <&clk IMX8MM_CLK_UART2_ROOT>,
 						 <&clk IMX8MM_CLK_UART2_ROOT>;
 					clock-names = "ipg", "per";
+					dmas = <&sdma1 24 4 0>, <&sdma1 25 4 0>;
+					dma-names = "rx", "tx";
 					status = "disabled";
 				};
 			};
-- 
2.48.1