linux-kernel - Re: [PATCH 4/4] Update device tree Synopsys DW DMAC documentation

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Date:   Wed, 16 Nov 2016 12:14:53 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
        "vinod.koul@...el.com" <vinod.koul@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>
Subject: Re: [PATCH 4/4] Update device tree Synopsys DW DMAC documentation

On Wed, Nov 16, 2016 at 12:08 PM, Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
> On Wed, 2016-11-16 at 17:01 +0000, Eugeniy Paltsev wrote:
>> On Wed, 2016-11-16 at 17:10 +0200, Andy Shevchenko wrote:
>> > Overall, since we are going to expose some properties to the Device
>> > Tree
>> > I would really think twice about naming. Better if we reuse
>> > something
>> > existing already.
>> >
>> > So, what I can see is
>> >
>> > dmacap,private
>> > dmacap,memcpy
>> >
>> > Here is a selling point as well, i.e. standardization.
>> >
>>
>> As I can see these property name used only in "mv_xor" driver. And
>> they are marked as deprecated.
>> So, I'm not sure if I should used these names.
>
> Oh, good catch! So, then I leave this to DT experienced guys to decide.
> Rob?

Well, maybe they were deprecated for a reason? This all seems like
user configuration to me. So either they don't belong in DT or should
be common if they do.

Rob