> -----Original Message----- > From: Andy Shevchenko <andy.shevchenko@xxxxxxxxx> > Sent: Friday, November 27, 2020 4:26 PM > To: Ardelean, Alexandru <alexandru.Ardelean@xxxxxxxxxx> > Cc: linux-spi <linux-spi@xxxxxxxxxxxxxxx>; devicetree > <devicetree@xxxxxxxxxxxxxxx>; Linux Kernel Mailing List <linux- > kernel@xxxxxxxxxxxxxxx>; Rob Herring <robh+dt@xxxxxxxxxx>; Mark Brown > <broonie@xxxxxxxxxx>; Bogdan, Dragos <Dragos.Bogdan@xxxxxxxxxx> > Subject: Re: [PATCH v3 3/3] spi: dt-bindings: document zero value for spi-{rx,tx}- > bus-width properties > > On Fri, Nov 27, 2020 at 3:08 PM Alexandru Ardelean > <alexandru.ardelean@xxxxxxxxxx> wrote: > > > > Following a change to the SPI framework, providing a value of zero for > > 'spi-rx-bus-width' and 'spi-tx-bus-width' is now possible and will > > essentially mean than no RX or TX is allowed. > > than -> that > > I'm wondering if we have a possibility to strict this for controllers that always > duplex (I assume that schema works in a way that the generic bindings is most > relaxed in comparison to the device specific ones in case of the same binding in > question). No idea here. > > -- > With Best Regards, > Andy Shevchenko