linux-kernel - Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock support

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Date:   Mon, 28 Jan 2019 11:20:07 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Richard Weinberger <richard@....at>,
        Dinh Nguyen <dinguyen@...nel.org>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Boris Brezillon <bbrezillon@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        linux-mtd <linux-mtd@...ts.infradead.org>,
        Brian Norris <computersforpeace@...il.com>,
        David Woodhouse <dwmw2@...radead.org>
Subject: Re: [PATCH] mtd: rawnand: denali_dt: remove single anonymous clock
 support

Hi Dinh,

Masahiro Yamada <yamada.masahiro@...ionext.com> wrote on Wed, 16 Jan
2019 10:27:11 +0900:

> (+CC Dinh Nguyen)
> 
> On Tue, Jan 15, 2019 at 5:22 PM Miquel Raynal <miquel.raynal@...tlin.com> wrote:
> >
> > Hi Masahiro,
> >
> > Masahiro Yamada <yamada.masahiro@...ionext.com> wrote on Tue, 15 Jan
> > 2019 17:11:34 +0900:
> >  
> > > Commit 6f1fe97bec34 ("mtd: rawnand: denali_dt: add more clocks based
> > > on IP datasheet") introduced a more correct binding that requires
> > > three named clocks.
> > >
> > > Now that all upstream DT files migrated over to it, remove the single
> > > anonymous clock support.  
> >
> > I would love to do that but I think this is against the "DT backward
> > compatibility rule".  
> 
> Yeah, I know this rule, but we break DT binding from time to time.
> 
> 
> 
> > Anyway, IIRC it is accepted that this kind of
> > rule might be broken if decided per the arch-maintainer (in this
> > case, you I suppose). So if this is really what you want, I'll queue
> > it.  
> 
> My platform is fine, but this driver is used by SOCFPGA boards as well.
> 
> I CCed the SOCFPGA maintainer, Dinh Nguyen.
> 

Gentle ping on this topic.


Thanks,
Miquèl