Please port 4ce01ce36d77 ("arm64: dts: imx8mm-beacon: Enable RTS-CTS on UART3") to 5.10+ This fixes an issue where attempting to use hardware handshaking on the DB9 port fails.
Please port 4ce01ce36d77 ("arm64: dts: imx8mm-beacon: Enable RTS-CTS on UART3") to 5.10+ This fixes an issue where attempting to use hardware handshaking on the DB9 port fails.