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

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Date:   Thu, 7 Feb 2019 23:20:28 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Dinh Nguyen <dinguyen@...nel.org>
Cc:     Boris Brezillon <bbrezillon@...nel.org>,
        Richard Weinberger <richard@....at>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Marek Vasut <marek.vasut@...il.com>,
        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,

Dinh Nguyen <dinguyen@...nel.org> wrote on Thu, 7 Feb 2019 12:17:50
-0600:

> On 2/5/19 7:18 AM, Miquel Raynal wrote:
> > Hi Dinh,
> > 
> > Boris Brezillon <bbrezillon@...nel.org> wrote on Thu, 31 Jan 2019
> > 18:26:44 +0100:
> >   
> >> Hi Dinh,
> >>
> >> On Thu, 31 Jan 2019 11:24:16 -0600
> >> Dinh Nguyen <dinguyen@...nel.org> wrote:
> >>  
> >>> On 1/28/19 4:20 AM, Miquel Raynal wrote:    
> >>>> 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.
> >>>>       
> >>>
> >>> This patch looks fine to be. Feel free to add:
> >>>
> >>> Tested-by: Dinh Nguyen <dinguyen@...nel.org>    
> >>
> >> I think Miquel is waiting for an Acked-by to confirm that you're okay
> >> breaking backward compat with old DT.  
> > 
> > Yes, I am waiting for your Acked-by.
> > 
> >   
> 
> Acked-by: Dinh Nguyen <dinguyen@...nel.org>
> 
> Dinh

Applied to nand/next.


Thanks,
Miquèl