linux-kernel - Re: [PATCH v2] arm64: defconfig: enable common modules for power management

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Message-ID: <5111815.vFFFHkSD4j@wuerfel>
Date:   Thu, 15 Sep 2016 00:08:30 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Will Deacon <will.deacon@....com>
Cc:     Leo Yan <leo.yan@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Simon Horman <horms+renesas@...ge.net.au>,
        Thierry Reding <treding@...dia.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Riku Voipio <riku.voipio@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: defconfig: enable common modules for power management

On Thursday, September 8, 2016 11:20:35 AM CEST Will Deacon wrote:
> Hi Arnd,
> 
> On Thu, Sep 01, 2016 at 09:33:38AM +0200, Arnd Bergmann wrote:
> > On Thursday, September 1, 2016 12:51:09 PM CEST Leo Yan wrote:
> > > Enable common modules for power management; one is to enable
> > > CPUFREQ_DT driver; the driver is used by many platforms by passing OPP
> > > table from device tree.
> > > 
> > > Also enables thermal related drivers. Firstly we need enable
> > > configuration CPU_THERMAL for CPU cooling device driver, this will bind
> > > thermal zone with CPU cooling device; and enable 'power allocator'
> > > thermal governor.
> > > 
> > > Signed-off-by: Leo Yan <leo.yan@...aro.org>
> > > 
> > 
> > Looks good,
> > 
> > Acked-by: Arnd Bergmann <arnd@...db.de>
> > 
> > Catalin and Will: I never know who should merge this kind of patch
> > as we have a number of other arm64 defconfig patches going through
> > arm-soc, but this patch is not really platform specific.
> > 
> > Do you want to pick it up in the arm64 tree or should we take
> > this and others patches like it in general?
> 
> I'm perfectly happy with you taking this, but thanks for asking the
> question. I think that, outside of the architectural bits, it makes
> sense for arm-soc to manage config options that are requested by the
> submaintainers. It also helps reduce defconfig churn. I typically wait
> until -rc1 before making any .config changes, unless they're urgent
> (e.g. systemd suddenly starts needing some options enabled in order to
> boot), so if you queue this for the merge window then we should be good.

Ok, thanks for the detailed answer. I've applied the patch to our
next/arm64 branch now.

	Arnd