Messages in this thread |  | | Date | Tue, 5 Jul 2022 14:38:27 -0600 | From | Rob Herring <> | Subject | Re: [PATCH v2 5/9] dt_bindings: rs485: Correct delay values |
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On Sun, 03 Jul 2022 19:00:35 +0200, Lino Sanfilippo wrote: > From: Lino Sanfilippo <l.sanfilippo@kunbus.com> > > 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. > > Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com> > --- > Documentation/devicetree/bindings/serial/rs485.yaml | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) >
Acked-by: Rob Herring <robh@kernel.org>
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