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

[Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.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@samsung.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@samsung.com>:
> >> >>>>>>> 2015-04-04 1:43 GMT+09:00 Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>:
> >> >>>>>>>> From: Thomas Abraham <thomas.ab@samsung.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@samsung.com>
> >> >>>>>>>> Cc: Doug Anderson <dianders@chromium.org>
> >> >>>>>>>> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
> >> >>>>>>>> Cc: Andreas Faerber <afaerber@suse.de>
> >> >>>>>>>> Cc: Sachin Kamat <sachin.kamat@linaro.org>
> >> >>>>>>>> Cc: Andreas Farber <afaerber@suse.de>
> >> >>>>>>>> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
> >> >>>>>>>> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
> >> >>>>>>>> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> >> >>>>>>>
> >> >>>>>>> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.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.

> BTW for other patchsets you still need acks from Samsung clock
> maintainers. Did you poke Sylwester or Tomasz about it?

Sylwester, please review/ack Samsung specific clock changes in
Exynos5250 cpufreq and Exynos4x12 cpufreq patch series.

Patch series:

* [PATCH v3 0/4] cpufreq: use generic cpufreq drivers for Exynos5250 platform
  (http://lkml.org/lkml/2015/7/1/311)

* [PATCH v2 0/7] cpufreq: use generic cpufreq drivers for Exynos4x12 platform
  (http://lkml.org/lkml/2015/7/9/419)

Samsung clock specific changes:

* [PATCH v3 1/4] clk: samsung: exynos5250: add cpu clock configuration data
  and instantiate cpu clock
  (http://lkml.org/lkml/2015/7/1/313)

* [PATCH v2 4/7] clk: samsung: exynos4x12: add cpu clock configuration data
  and instantiate cpu clock
  (http://lkml.org/lkml/2015/7/9/424)

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics