Hi, the following patch: b4a778303ea0 serial: sc16is7xx: add missing support for rs485 devicetree properties Was introduced in kernel 6.5. Without it, the rs485 devicetree properties are not applied and the RS-485 ports do not work. I would like it to be applied to the stable kernel 6.1. It applies cleanly and was tested on this kernel using a custom board with a Variscite IMX8MN NANO SOM, a NewHaven LCD, and two SC16IS752 on a SPI bus. The four UARTs are using RS-485 mode. Thank you, Hugo Villeneuve
