linux-kernel - Re: [PATCH v3 3/5] ARM: Exynos: switch to using generic cpufreq driver for Exynos4x12

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Date:	Mon, 03 Aug 2015 17:57:36 +0200
From:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Thomas Abraham <thomas.ab@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Michael Turquette <mturquette@...libre.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Kukjin Kim <kgene@...nel.org>,
	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,
	Javier Martinez Canillas <javier@....samsung.com>,
	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>
Subject: Re: [PATCH v3 3/5] ARM: Exynos: switch to using generic cpufreq driver
 for Exynos4x12

On Monday, August 03, 2015 09:20:41 PM Viresh Kumar wrote:
> On 03-08-15, 15:55, Bartlomiej Zolnierkiewicz wrote:
> > diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
> > index 81064cd..491914c 100644
> > --- a/arch/arm/mach-exynos/Kconfig
> > +++ b/arch/arm/mach-exynos/Kconfig
> > @@ -25,6 +25,8 @@ menuconfig ARCH_EXYNOS
> >  	select S5P_DEV_MFC
> >  	select SRAM
> >  	select MFD_SYSCON
> > +	select THERMAL
> > +	select EXYNOS_THERMAL
> 
> Why do you need to select both of them?

Because otherwise you can disable the whole THERMAL subsystem support
(effectively disabling EXYNOS_THERMAL in the process).

This is the same way in which ARCH_EXYNOS handles PINCTRL_EXYNOS
support currently (it also selects PINCTRL subsystem).

> >  	help
> >  	  Support for SAMSUNG EXYNOS SoCs (EXYNOS4/5)
> >  
> > diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
> > index 77ac021..1c47aee 100644
> > --- a/arch/arm/mach-exynos/exynos.c
> > +++ b/arch/arm/mach-exynos/exynos.c
> > @@ -227,6 +227,8 @@ static void __init exynos_init_irq(void)
> >  static const struct of_device_id exynos_cpufreq_matches[] = {
> >  	{ .compatible = "samsung,exynos3250", .data = "cpufreq-dt" },
> >  	{ .compatible = "samsung,exynos4210", .data = "cpufreq-dt" },
> > +	{ .compatible = "samsung,exynos4212", .data = "cpufreq-dt" },
> > +	{ .compatible = "samsung,exynos4412", .data = "cpufreq-dt" },
> >  	{ .compatible = "samsung,exynos5250", .data = "cpufreq-dt" },
> >  	{ /* sentinel */ }
> >  };
> 
> Otherwise looks fine:
> 
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

Thanks!

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

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