From: Adam Ford Date: Tue, 26 Apr 2022 20:51:44 +0000 (-0500) Subject: arm64: dts: imx8mn-beacon: Enable RTS-CTS on UART3 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5446ff1a67160ad92d9aae9530846aa54750be36;p=linux.git arm64: dts: imx8mn-beacon: Enable RTS-CTS on UART3 There is a header for a DB9 serial port, but any attempts to use hardware handshaking fail. Enable RTS and CTS pin muxing and enable handshaking in the uart node. Signed-off-by: Adam Ford Signed-off-by: Shawn Guo --- diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-baseboard.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-beacon-baseboard.dtsi index 0f40b43ac091c..02f37dcda7eda 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-baseboard.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-baseboard.dtsi @@ -175,6 +175,7 @@ pinctrl-0 = <&pinctrl_uart3>; assigned-clocks = <&clk IMX8MN_CLK_UART3>; assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_80M>; + uart-has-rtscts; status = "okay"; }; @@ -258,6 +259,8 @@ fsl,pins = < MX8MN_IOMUXC_ECSPI1_SCLK_UART3_DCE_RX 0x40 MX8MN_IOMUXC_ECSPI1_MOSI_UART3_DCE_TX 0x40 + MX8MN_IOMUXC_ECSPI1_MISO_UART3_DCE_CTS_B 0x40 + MX8MN_IOMUXC_ECSPI1_SS0_UART3_DCE_RTS_B 0x40 >; };