Re: [PATCH v2 5/9] dt_bindings: rs485: Correct delay values

[Andy Shevchenko]

On Sun, Jul 3, 2022 at 7:02 PM Lino Sanfilippo <LinoSanfilippo@xxxxxx> wrote:
>
> From: Lino Sanfilippo <l.sanfilippo@xxxxxxxxxx>
>
> Currently the documentation claims that a maximum of 1000 msecs is allowed
> for RTS delays. However nothing actually checks the values read from device
> tree/ACPI and so it is possible to set much higher values.
>
> There is already a maximum of 100 ms enforced for RTS delays that are set
> via the uart TIOCSRS485 ioctl. To be consistent with that use the same
> limit for DT/ACPI values.
>
> Although this change is visible to userspace the risk of breaking anything
> when reducing the max delays from 1000 to 100 ms should be very low, since
> 100 ms is already a very high maximum for delays that are usually rather in
> the usecs range.

Yeah, something similar is what you need to add to the previous patch IIUC.

-- 
With Best Regards,
Andy Shevchenko