linux-kernel - Re: [PATCH v4 0/6] cpufreq: use generic cpufreq drivers for Exynos4x12 platform

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Message-id: <2359635.Hxe4cb8zKm@amdc1976>
Date:	Fri, 07 Aug 2015 13:47:26 +0200
From:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Olof Johansson <olof@...om.net>,
	Arnd Bergmann <arnd.bergmann@...aro.org>,
	'Thomas Abraham' <thomas.ab@...sung.com>,
	'Sylwester Nawrocki' <s.nawrocki@...sung.com>,
	'Michael Turquette' <mturquette@...libre.com>,
	'Tomasz Figa' <tomasz.figa@...il.com>,
	'Lukasz Majewski' <l.majewski@...sung.com>,
	'Heiko Stuebner' <heiko@...ech.de>,
	'Chanwoo Choi' <cw00.choi@...sung.com>,
	'Kevin Hilman' <khilman@...aro.org>,
	'Javier Martinez Canillas' <javier@...hile0.org>,
	'Tobias Jakobi' <tjakobi@...h.uni-bielefeld.de>,
	'Anand Moon' <linux.amoon@...il.com>,
	linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/6] cpufreq: use generic cpufreq drivers for Exynos4x12
 platform

On Friday, August 07, 2015 05:09:50 PM Viresh Kumar wrote:
> On 07-08-15, 13:31, Bartlomiej Zolnierkiewicz wrote:
> > Users don't need to enable the config option to get boost
> > functionality working.  It is only needed to get scaling_boost_freqs
> > sysfs attribute visible (which lists available boost freqs) when
> > using cpufreq-dt driver.  Also the config option in question is not
> > user visible.
> 
> By users I meant the people who will prepare the build images for the
> release. They can just enable the config option :)

OK.

> > The worst thing that happens if these 2 PM patches don't make it
> > in time is that there will be no scaling_boost_freqs available
> > when using cpufreq-dt driver.  Which is not very important from
> > Exynos4x12 POV as it only supports single boost freq currently.
> 
> Right. So, now that your patch is Acked, send 1/6 and 6/6 separately
> to pm-list and Rafael can get them merged himself..
> 
> I hope, your 6/6 patch will change a bit now ?

Hmm, wait.  Patch 6/6 depends on earlier changes.  I cannot remove
the config option in question now as it is currently used by
exynos-cpufreq specific boost support.  Patch 1/6 can be applied
now but 6/6 needs to wait for patches 2-5 to be applied first.

Actually 6/6 is trivial and can be applied later in v4.3 cycle or
even in v4.4 one.

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

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