From fc077c4c74bbcb0f86cab11aa30e0deeb24bd65b Mon Sep 17 00:00:00 2001 From: Adam Ford Date: Thu, 3 Jul 2025 06:38:10 -0500 Subject: [PATCH] arm64: dts: imx8mn: Configure DMA on UART2 UART2 is often used as the console, so the DMA was likely left off on purpose, since it's recommended to not use the DMA on the console. Because, 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 Reviewed-by: Ahmad Fatoum Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/imx8mn.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index 848ba5e46ee67..b98b3d0ddf25a 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi @@ -860,6 +860,8 @@ clocks = <&clk IMX8MN_CLK_UART2_ROOT>, <&clk IMX8MN_CLK_UART2_ROOT>; clock-names = "ipg", "per"; + dmas = <&sdma1 24 4 0>, <&sdma1 25 4 0>; + dma-names = "rx", "tx"; status = "disabled"; }; }; -- 2.39.5