[PATCH] serial: imx: ensure RTS signal is not left active after shutdown

[Rasmus Villemoes]

On 24/05/2024 14.12, Rasmus Villemoes wrote:
> If a process is killed while writing to a /dev/ttymxc* device in RS485
> mode, we observe that the RTS signal is left high, thus making it
> impossible for other devices to transmit anything.

Ping. Any comments on this? I'm of course open to discussing other ways
of fixing this, but I'd really like a fix to land in 6.11.

It reproduces completely reliably for me, and I assume it affects any
board with this IP, not just imx8mp.

Rasmus