linux-kernel - Re: [PATCH 0/3] Support PMIC operation region for CrystalCove and XPower

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Message-ID: <1668657.Fqph6NyFNz@vostro.rjw.lan>
Date:	Thu, 13 Nov 2014 01:53:23 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	Aaron Lu <aaron.lu@...el.com>, linux-acpi@...r.kernel.org,
	linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: Re: [PATCH 0/3] Support PMIC operation region for CrystalCove and XPower

On Wednesday, November 12, 2014 09:44:19 AM Lee Jones wrote:
> On Wed, 12 Nov 2014, Rafael J. Wysocki wrote:
> 
> > On Tuesday, November 11, 2014 11:11:52 AM Lee Jones wrote:
> > > On Tue, 11 Nov 2014, Aaron Lu wrote:
> > > 
> > > > On 10/31/2014 02:08 PM, Aaron Lu wrote:
> > > > > On Intel Baytrail-T and Baytrail-T-CR platforms, there are two customized
> > > > > ACPI operation regions defined for the Power Management Integrated Circuit
> > > > > device, one is for power resource handling and one is for thermal: sensor
> > > > > temperature reporting, trip point setting, etc. There are different PMIC
> > > > > chips used on those platforms and though each has the same two operation
> > > > > regions and functionality, their implementation is different so every PMIC
> > > > > will need a driver. But since their functionality is similar, some common
> > > > > code is abstracted into the intel_soc_pmic_opregion.c.
> > > > > 
> > > > > The last version is posted here:
> > > > > https://lkml.org/lkml/2014/9/8/801
> > > > > 
> > > > > Changes since then:
> > > > > 1 Move to drivers/acpi as discussed on the above thread;
> > > > > 2 Added support for XPower AXP288 PMIC operation region support;
> > > > > 3 Since operation region handler can not be removed(at the moment at least),
> > > > >   use bool for the two operation region driver configs instead of tristate;
> > > > >   Another reason to do this is that, with Mika's MFD ACPI support patch, all
> > > > >   those MFD cell devices created will have the same modalias as their parent's
> > > > >   so it doesn't make much sense to compile these drivers into modules.
> > > > > 
> > > > > Patch 1 applies on top of Rafael's pm-next branch, and then patch 2 and
> > > > > patch 3 needs merge of Lee's mfd/ib-mfd-iio-3.19 branch where the PMIC
> > > > > driver XPower AXP288 and iio driver axp288_adc is located.
> > > > 
> > > > Since patch 2-3 are based on top of the mfd/ib-mfd-iio-3.19 branch, it
> > > > would be easy to go through the mfd/ib-mfd-iio-3.19 branch.
> > > > 
> > > > Rafael,
> > > > Can I get your ACK for the three patches?
> > > > 
> > > > Lee,
> > > > Can you please take the series if Rafael gives it ack?
> > > 
> > > Yes, no problem.
> > 
> > Well, since the code is going to reside mostly in drivers/acpi, I think I should
> > be applying the patches and from your response it looks like you are fine with
> > them.  Is that correct?
> 
> I read that this set has dependencies on patches which are already in
> the MFD tree.  If that's not the case please go ahead and apply them
> with my Ack for the MFD components.

I thought you had a branch that I could pull into my tree and apply the patches
on top of it.  At least that was my understanding of the Aaron's message, so
please let me know if that's not the case.

Rafael

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