public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-18 22:14:16 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

arm64: dts: imx8mn: Configure DMA on UART2

Browse source 
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 <aford173@gmail.com>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Adam Ford 2025-07-03 06:38:10 -05:00 • committed by Shawn Guo
parent a69f7234e0
commit fc077c4c74
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/arm64/boot/dts/freescale/imx8mn.dtsi
View file

@ -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";
};
};