On Thu, Dec 01, 2016 at 11:24:14AM +0100, Emmanuel Vadot wrote: > > > > > If num-cs isn't present nothing prevent to start a transfer > > > > > with a non-valid CS pin, resulting in an error. num-cs are > > > > > default property especially made for this and a SPI driver > > > > > should try to get the property at probe/attach time. > > > > > > > > Yes, but as far as I know, our driver doesn't. I'm all in for > > > > having support for that in our driver, but without it, that > > > > patch is kind of useless. > > > > > > Yes the Linux driver doesn't use it but my upcoming one for FreeBSD > > > uses it. So it is not useless for downstream user of DTS. > > > > Ah, I didn't know this was for FreeBSD. So you started to use our DTs, > > or do you have some modifications to it? How does that work? > > Yes we use the DTS from linux from quite some times now. We're > currently synced with 4.7-ish. We either use them directly or > modify them according to our needs and driver support. Do you have a link to those modifications? Thanks, Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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