Re: [PATCH v2 4/9] serial: core: sanitize RS485 delays read from device tree

[Lino Sanfilippo]

On 03.07.22 20:34, Andy Shevchenko wrote:
> On Sun, Jul 3, 2022 at 7:02 PM Lino Sanfilippo <LinoSanfilippo@xxxxxx> wrote:
>>
>> From: Lino Sanfilippo <l.sanfilippo@xxxxxxxxxx>
>>
>> When setting the RS485 configuration from userspace via TIOCSRS485 the
>> delays are clamped to 100ms. Make this consistent with the values passed
>> in by means of device tree parameters.
>
> I'm not sure I got it right. Is the values from DT now clampet as well
> as user space does or other way around? In either way the commit
> message misses the explanation why it's not a problem if user
> previously passed bigger values either via user space or via DT,
> because it's an ABI change, right?
>

Values are now clamped to 100 ms if set by userspace via ioctl and
not clamped at all if set by DT. I will improve the commit message
to make this more clear.

Thanks,
Lino