linux-kernel - Re: [PATCH v3 0/3] Qualcomm Resource Power Manager driver

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Date:	Wed, 18 Jun 2014 11:03:44 -0500
From:	Kumar Gala <galak@...eaurora.org>
To:	Kevin Hilman <khilman@...aro.org>
Cc:	Bjorn Andersson <bjorn@...o.se>, Lee Jones <lee.jones@...aro.org>,
	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Josh Cartwright <joshc@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-arm-msm <linux-arm-msm@...r.kernel.org>,
	Paul Walmsley <paul@...an.com>
Subject: Re: [PATCH v3 0/3] Qualcomm Resource Power Manager driver


On Jun 18, 2014, at 10:53 AM, Kevin Hilman <khilman@...aro.org> wrote:

> Bjorn Andersson <bjorn@...o.se> writes:
> 
>> On Tue, Jun 17, 2014 at 10:07 AM, Kevin Hilman <khilman@...aro.org> wrote:
>>> +Paul Walmsley
>>> 
>>> Bjorn Andersson <bjorn.andersson@...ymobile.com> writes:
>>> 
>>>> This series adds a regulator driver for the Resource Power Manager found in
>>>> Qualcomm 8660, 8960 and 8064 based devices.
>>>> 
>>>> The RPM driver exposes resources to its child devices, that can be accessed to
>>>> implement drivers for the regulators, clocks and bus frequency control that's
>>>> owned by the RPM in these devices.
>>>> 
>>>> Changes since v2:
>>>>  - Fix copy-paste error in dt binding
>>>>  - Correct incomplete move from mfd to soc
>>>>  - Correct const mistake in regulator driver
>>>> 
>>>> Changes since v1:
>>>>  - Moved rpm driver to drivers/soc
>>> 
>>> I'm not sure I follow the motivation for having this under drivers/soc?
>>> 
>> Hi Kevin,
>> 
>> I've made the argument that to me this is conceptually a black box
>> handling regulators, clocks and other stuff; hence similar to a PMIC,
>> which would fit nicely into drivers/mfd.
>> 
>> I still think this is the case and now that I look back I didn't get
>> any pushback from Lee Jones so maybe the move was premature?
> 
> Yes, IMO, the move was premature, but hopefully the drivers/soc folks
> can chime in an clarify the criteria for inclusion there.
> 
> Kevin

I dont agree, I think having this in drivers/soc means that we can clearly go through drivers/soc in the future and look for patterns across SoCs that should be re-factored.  Where MFD seems like its become the new drivers misc.

- k

-- 
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

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