linux-kernel - Re: [PATCH v2 2/7] ARM: Exynos: add support for sub-power domains

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Message-ID: <7hvblsy0a6.fsf@deeprootsystems.com>
Date:	Wed, 03 Dec 2014 11:57:05 -0800
From:	Kevin Hilman <khilman@...nel.org>
To:	Marek Szyprowski <m.szyprowski@...sung.com>
Cc:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel\@lists.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-samsung-soc\@vger.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>, Kukjin Kim <kgene@...nel.org>,
	Inki Dae <inki.dae@...sung.com>,
	Tobias Jakobi <Liquid.Acid@....net>,
	Daniel Drake <drake@...lessm.com>,
	Andrzej Hajda <a.hajda@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Pankaj Dubey <pankaj.dubey@...sung.com>,
	Amit Daniel Kachhap <amit.daniel@...sung.com>,
	Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH v2 2/7] ARM: Exynos: add support for sub-power domains

Marek Szyprowski <m.szyprowski@...sung.com> writes:

> Hello,
>
> On 2014-12-03 13:36, Geert Uytterhoeven wrote:
>> Hi Marek,
>>
>> On Wed, Dec 3, 2014 at 1:33 PM, Marek Szyprowski
>> <m.szyprowski@...sung.com> wrote:
>>> diff --git a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
>>> index abde1ea8a119..b884358ebb1a 100644
>>> --- a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
>>> +++ b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
>>> @@ -22,6 +22,8 @@ Optional Properties:
>>>          - pclkN, clkN: Pairs of parent of input clock and input clock to the
>>>                  devices in this power domain. Maximum of 4 pairs (N = 0 to 3)
>>>                  are supported currently.
>>> +- samsung,power-domain: phandle to a master power domain that the given domain
>>> +                      is a part of
>> For new DTSes I'd recommend using the generic "power-domains" only.
>
> I think that some consistency in dts style will be really an added
> value. In my opinion for
> all existing DTSes we should keep using 'samsung,power-domain' (even
> for defining a parent
> power domains) and for all new DTSes, the generic 'power-domains'
> binding should be used.

Or even better, convert the existing DTSs to use generic power-domain
first, and then use generic ones going forward also.

Kevin
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