Date: Mon, 3 Aug 2015 15:59:26 +0530
From: Viresh Kumar <viresh.kumar@linaro.org>
To: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>,
        Sylwester Nawrocki <s.nawrocki@samsung.com>,
        Michael Turquette <mturquette@baylibre.com>,
        Kukjin Kim <kgene.kim@samsung.com>, Kukjin Kim <kgene@kernel.org>,
        Krzysztof Kozlowski <k.kozlowski@samsung.com>,
        Tomasz Figa <tomasz.figa@gmail.com>,
        Lukasz Majewski <l.majewski@samsung.com>,
        Heiko Stuebner <heiko@sntech.de>, Chanwoo Choi <cw00.choi@samsung.com>,
        Kevin Hilman <khilman@linaro.org>,
        Javier Martinez Canillas <javier@dowhile0.org>,
        Tobias Jakobi <tjakobi@math.uni-bielefeld.de>,
        Anand Moon <linux.amoon@gmail.com>, linux-samsung-soc@vger.kernel.org,
        linux-clk@vger.kernel.org, linux-pm@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Javier Martinez Canillas <javier@osg.samsung.com>
Subject: Re: [PATCH v3 3/5] ARM: Exynos: switch to using generic cpufreq
 driver for Exynos4x12
Message-ID: <20150803102926.GA21529@linux>
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On 03-08-15, 12:17, Bartlomiej Zolnierkiewicz wrote:
> 
> Hi,
> 
> On Saturday, August 01, 2015 04:47:21 PM Viresh Kumar wrote:
> > On 31-07-15, 20:49, Bartlomiej Zolnierkiewicz wrote:
> > > diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
> > > index 659879a..bf6d596 100644
> > > --- a/drivers/cpufreq/Kconfig
> > > +++ b/drivers/cpufreq/Kconfig
> > > @@ -191,6 +191,7 @@ config CPUFREQ_DT
> > >  	# if CPU_THERMAL is on and THERMAL=m, CPUFREQ_DT cannot be =y:
> > >  	depends on !CPU_THERMAL || THERMAL
> > >  	select PM_OPP
> > > +	select EXYNOS_THERMAL if ARCH_EXYNOS
> > >  	help
> > >  	  This adds a generic DT based cpufreq driver for frequency management.
> > >  	  It supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
> > 
> > No, we shouldn't pollute generic Kconfig options with platform specific stuff.
> 
> The old code depended on this.  You couldn't enable boost support
> without enabling thermal support (ARM_EXYNOS_CPU_FREQ_BOOST_SW
> config option selected EXYNOS_THERMAL).
> 
> > Why don't you enable thermal in your .config?
> 
> It is enabled in exynos_defconfig but without the above change it
> can disabled manually which is something that we don't want.

You are not getting it. I am not asking you to not select thermal, but
to select it from within your architecture Kconfig option if you want.

Over that, thermal is really an option, not a dependency. So, if
someone manually disables it, its his problem not yours :)

-- 
viresh
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