linux-kernel - Re: [PATCH 4/6] ARM: dts: Exynos4210: add CPU OPP and regulator supply property

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Date:	Mon, 13 Jul 2015 20:50:41 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Doug Anderson <dianders@...omium.org>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Lukasz Majewski <l.majewski@...sung.com>,
	Kevin Hilman <khilman@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>, linux-pm@...r.kernel.org,
	Sachin Kamat <sachin.kamat@...aro.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Michael Turquette <mturquette@...libre.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	linux-kernel@...r.kernel.org, Chanwoo Choi <cw00.choi@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	Thomas Abraham <thomas.ab@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	linux-samsung-soc@...r.kernel.org,
	Andreas Faerber <afaerber@...e.de>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 4/6] ARM: dts: Exynos4210: add CPU OPP and regulator
 supply property

2015-07-13 20:20 GMT+09:00 Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>:
> On Monday, July 13, 2015 08:10:21 PM Krzysztof Kozlowski wrote:
>> 2015-07-13 20:02 GMT+09:00 Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>:
>> >
>> > Hi,
>> >
>> > On Tuesday, June 23, 2015 09:24:40 AM Krzysztof Kozlowski wrote:
>> >> On 23.06.2015 08:46, Krzysztof Kozlowski wrote:
>> >> > On 23.06.2015 00:04, Michael Turquette wrote:
>> >> >> Quoting Kukjin Kim (2015-06-21 18:46:26)
>> >> >>> Krzysztof Kozlowski wrote:
>> >> >>>>
>> >> >>>> On 22.06.2015 10:38, Kukjin Kim wrote:
>> >> >>>>> Krzysztof Kozlowski wrote:
>> >> >>>>>> 2015-05-08 9:18 GMT+09:00 Krzysztof Kozlowski <k.kozlowski@...sung.com>:
>> >> >>>>>>> 2015-04-04 1:43 GMT+09:00 Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>:
>> >> >>>>>>>> From: Thomas Abraham <thomas.ab@...sung.com>
>> >> >>>>>>>>
>> >> >>>>>>>> For Exynos4210 platforms, add CPU operating points and CPU
>> >> >>>>>>>> regulator supply properties for migrating from Exynos specific
>> >> >>>>>>>> cpufreq driver to using generic cpufreq driver.
>> >> >>>>>>>>
>> >> >>>>>>>> Changes by Bartlomiej:
>> >> >>>>>>>> - removed Exynos5250 and Exynos5420 support for now
>> >> >>>>>>>>
>> >> >>>>>>>> Cc: Kukjin Kim <kgene.kim@...sung.com>
>> >> >>>>>>>> Cc: Doug Anderson <dianders@...omium.org>
>> >> >>>>>>>> Cc: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
>> >> >>>>>>>> Cc: Andreas Faerber <afaerber@...e.de>
>> >> >>>>>>>> Cc: Sachin Kamat <sachin.kamat@...aro.org>
>> >> >>>>>>>> Cc: Andreas Farber <afaerber@...e.de>
>> >> >>>>>>>> Cc: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
>> >> >>>>>>>> Signed-off-by: Thomas Abraham <thomas.ab@...sung.com>
>> >> >>>>>>>> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
>> >> >>>>>>>
>> >> >>>>>>> Acked-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
>> >> >>>>>>
>> >> >>>>>> Rebased and applied to my tree, I'll sent it later to Kukjin unless he
>> >> >>>>>> picks it by himself from LKML.
>> >> >>>>>>
>> >> >>>>> Hi, as far as I know, this is for v4.2 not v4.1 so it will be applied based on
>> >> >>>>> v4.2-rc1 after v4.2-rc1 release.
>> >> >>>>
>> >> >>>> You mean it is for v4.3, not v4.2?
>> >> >>>>
>> >> >>> Oops, yes v4.3.
>> >> >>>
>> >> >>> Thanks for the correction.
>> >> >>
>> >> >> Kukjin & Krzysztof,
>> >> >>
>> >> >> I'm confused on this point. I was planning to take patches 1, 2, 3, 5
>> >> >> and 6 towards 4.2 (e.g. in the pull request that I'll send out this
>> >> >> week).
>> >> >>
>> >> >> Is patch 4 going out for 4.2 or 4.3?
>> >> >
>> >> > It is quite late for sending pull request to arm-soc for 4.2.
>> >> > For example SoCFPGA pull request from last week was rejected:
>> >> > http://comments.gmane.org/gmane.linux.ports.arm.kernel/417980
>> >>
>> >> Oh, that was wrong link. Here it is:
>> >> http://www.spinics.net/lists/arm-kernel/msg425911.html
>> >>
>> >> > If you want to take it for 4.2 then I am fine with it but this will
>> >> > cause some easy but annoying conflicts. There aren't difficult - just
>> >> > most of nodes in board DTS changed their place.
>> >> >
>> >> > Example of resolution (target file after merge, with cpu nodes reordered
>> >> > alphabetically):
>> >> > https://github.com/krzk/linux/commit/2cec3cb48abaf44848c62f1c0836b772eb4680dd
>> >
>> > This patch is needed for v4.2 as other changes has been already
>> > merged.
>> >
>> > Krzysztof/Kukjin, could you please take care of it?
>>
>> Of course! It is already in my queue. I'll send it later to Kukjin for
>> 4.3 (unless he picks it also).
>
> It is in your queue for v4.3 but the patch is needed for v4.2,
> without it cpufreq support will not work for Exynos4210 platforms.

Hmm... it makes sense to push it during this rc-cycle to bring back
crippled feature.

Best regards,
Krzysztof
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