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From: "eric miao" <eric.y.miao@gmail.com>
To: "Liam Girdwood" <lg@opensource.wolfsonmicro.com>
Cc: "Russell King - ARM Linux" <linux@arm.linux.org.uk>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@lists.arm.linux.org.uk>
Subject: Re: [UPDATED v2][PATCH 0/6] regulator: voltage and current regulator framework
Date: Fri, 22 Feb 2008 11:22:33 +0800	[thread overview]
Message-ID: <f17812d70802211922v49201af2re87629eba34bd9d4@mail.gmail.com> (raw)
In-Reply-To: <1203611191.4071.186.camel@localhost.localdomain>

On Fri, Feb 22, 2008 at 12:26 AM, Liam Girdwood
<lg@opensource.wolfsonmicro.com> wrote:
> On Thu, 2008-02-21 at 08:41 +0000, Russell King - ARM Linux wrote:
>  > On Wed, Feb 20, 2008 at 05:08:46PM +0000, Liam Girdwood wrote:
>  > > This patch series provides a generic framework to allow device drivers
>  > > to control voltage and current regulators on SoC based devices (e.g.
>  > > phones, gps, media players).
>  >
>  > Note that I'm explicitly avoiding commenting on this as far as PXA3xx
>  > devices go, until we're further down the road with PM support on that
>  > SoC.  It's not clear at present whether a generic PMIC framework will
>  > be suitable for this SoC since it's my understanding from Marvell that
>  > we need to talk to the PMIC from IRQs-off contexts.
>  >
>  > So don't take my silence as some sort of acceptance of this code; it
>  > isn't.
>
>  I wasn't ;)
>
>  It then might be worth adding this functionality at a later stage when
>  more can be said about PXA3xx PMIC support. We could always have a
>  version of the _set() functions that are designed to handle this case.
>
>  In the mean time this works well on 3 other SoC CPUs.
>
>  Liam
>

Liam,

I have a rough peek into the git tree on opensource.wolfsonmicro.com,
find another PMIC framework, and here instead is a regulator framework,
looks like a simplified or dedicated one. What is their relationship?

For those PMIC that covers additional features, like
  - usb vbus detection (or pull-up/pull-down)
  - audio codec
  - touch screen
  - battery monitor/ fuel gauge
  - battery charger
  - possible many others

How do you plan to handle them?

>
>
>  --
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-- 
Cheers
- eric

  reply	other threads:[~2008-02-22  3:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-20 17:08 [UPDATED v2][PATCH 0/6] regulator: voltage and current regulator framework Liam Girdwood
2008-02-21  8:41 ` Russell King - ARM Linux
2008-02-21 16:26   ` Liam Girdwood
2008-02-22  3:22     ` eric miao [this message]
2008-02-22 12:36       ` Liam Girdwood
2008-02-22 20:28         ` David Brownell

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