From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Mon, 5 Dec 2016 10:28:21 +0100 Subject: [PATCH] ARM: dts: sunxi: Add num-cs for A20 spi nodes In-Reply-To: <20161201112414.62f9b351186115f62c8998a9@bidouilliste.com> References: <20161122170616.29557-1-manu@bidouilliste.com> <20161124195517.qrq7briu3pwjnp4n@lukather> <20161124210509.be743aae84c26c6c2e666c6e@bidouilliste.com> <20161125152047.oadxi2xbgm4kdd7q@lukather> <20161125220752.c989c85e01ed202be0485c78@bidouilliste.com> <20161201092150.rlo5skxd6elovlgq@lukather> <20161201112414.62f9b351186115f62c8998a9@bidouilliste.com> Message-ID: <20161205092821.m2fmqxnzalcignly@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 801 bytes Desc: not available URL: