From mboxrd@z Thu Jan  1 00:00:00 1970
From: kgene.kim@samsung.com (Kukjin Kim)
Date: Wed, 21 May 2014 22:54:10 +0900
Subject: [PATCH V5 18/20] ARM: exynos: cpuidle: Pass the AFTR callback to
 the platform_data
In-Reply-To: <11675203.TylGKV1VBZ@wuerfel>
References: <1397212815-16068-1-git-send-email-daniel.lezcano@linaro.org>
 <5375262C.10805@samsung.com> <537C5296.7050801@linaro.org>
 <11675203.TylGKV1VBZ@wuerfel>
Message-ID: <036f01cf74fc$24654170$6d2fc450$@samsung.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Arnd Bergmann wrote:

> 
> On Wednesday 21 May 2014 09:15:34 Daniel Lezcano wrote:
> > On 05/15/2014 10:40 PM, Kukjin Kim wrote:
> >
> > [ ... ]
> >
> > >>>> Exynos cpuidle is not a device on the SoC, so I don't think there
> is
> > >>>> any
> > >>>> way to represent it in DT. The only thing I could see this is
> matching
> > >>>> root node with a central SoC driver that instantiates specific
> > >>>> subdevices, such as cpufreq and cpuidle, but I don't see any
> available
> > >>>> infrastructure for this.
> > >>>
> > >>> There is a RFC for defining generic idle states [1].
> > >>>
> > >>> The idea behind using the platform driver framework is to unify the
> code
> > >>> across the different drivers and separate the PM / cpuidle code.
> > >>>
> > >>> By this way, we can move the different drivers to drivers/cpuidle
> and
> > >>> store them in a single place. That make easier the tracking, the
> review
> > >>> and the maintenance.
> 
> Yes, that would be great. I only looked briefly at the series now, doesn't
> that require the use of psci? That's not a bad idea of course, but it
> doesn't solve the problem I raised here.
> 
> > >>> I am ok to by using platform_device_register_resndata() but I would
> > >>> prefer to do that a bit later by converting the other drivers too.
> That
> > >>> will be easier if we have them grouped in a single directory (this
> is
> > >>> what does this patchset at the end).
> > >>>
> > >>> As there are some more work based on this patchset and the link
> error
> > >>> could be fixed as an independent patch, I would recommend to
> > >>> re-integrate it in the tree as asked by Bartlomiej.
> > >>
> > >> In general, it would be nice to have everything done properly, but
> I'd
> > >> consider Daniel's series as a huge improvement already and a nice
> > >> intermediate step towards further clean-up.
> > >>
> > >> So based on the comments quoted above, instead of stalling the
> > >> development, I'd suggest to accept this series and then move forward.
> > >>
> > > I'm fine.
> > >
> > > Arnd, how about you?
> > >
> > > - Kukjin
> >
> > Arnd ?
> 
> Sorry for the delay. Yes, let's do it this way once more, but please
> come up with something better for the future that doesn't tie the
> cpuidle method to the root compatible string as this does.
> 
Good!

I will include this series into for-next and 2nd round of samsung
pull-request for 3.16.

Thanks,
Kukjin