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From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
To: Linus Walleij <linus.walleij-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org>
Cc: Ben Dooks <ben-i2c-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>,
	linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Jonas Aaberg
	<jonas.aberg-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org>,
	Magnus Damm <magnus.damm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>,
	Linus Walleij
	<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH RESEND] i2c/nomadik: runtime PM support
Date: Thu, 8 Mar 2012 14:41:54 +0000	[thread overview]
Message-ID: <20120308144154.GO3638@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1331213407-10135-1-git-send-email-linus.walleij-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org>

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On Thu, Mar 08, 2012 at 02:30:07PM +0100, Linus Walleij wrote:

> The key reason is that we have hardware blocks with different
> characteristics on the order to do things, whereas in some other
> systems (like shmobile I guess) every IP block shall be twisted
> the same way. We have a mixed legacy of ARM PrimeCells and IP
> blocks from different corners of the world and just cannot do
> it in one single way. ARM PrimeCells already have some
> centralized runtime PM callbacks.

Yeah, the other issue on some systems with long histories is that if
you've got many generations of SoC it can be easier to roll updates out
over drivers than get all the SoCs updated to the latest infrastructure
along with supporting new ones.

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  parent reply	other threads:[~2012-03-08 14:41 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-08 13:30 [PATCH RESEND] i2c/nomadik: runtime PM support Linus Walleij
     [not found] ` <1331213407-10135-1-git-send-email-linus.walleij-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org>
2012-03-08 14:41   ` Mark Brown [this message]
2012-03-19 11:35   ` Linus Walleij
     [not found]     ` <CACRpkdbQRB37kYfCwn6+xUxBkVVo9f3RwUk5pstVPcfK8bivZw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-03-19 11:36       ` Linus Walleij
2012-04-10 11:03       ` Linus Walleij
     [not found]         ` <CACRpkdafU2Awaxx-2dXT_Z8S+dySx6YoV174rxJvdix81TBBpg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-04-17 14:39           ` Wolfram Sang
     [not found]             ` <20120417143901.GA22406-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-04-17 14:41               ` Mark Brown
2012-04-18  6:39               ` Magnus Damm
     [not found]                 ` <CANqRtoTbW2ew9ZwYmdJAaiD5qujZ-43eCfT=myDQdeYScwiBzQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-04-19 11:16                   ` Wolfram Sang
     [not found]                     ` <20120419111635.GE2206-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-04-19 17:07                       ` Linus Walleij
2012-05-03  9:03                   ` Linus Walleij
     [not found]                     ` <CACRpkdbj+cF7d_=QmqtXTGS4s3Jrr7vxnrt5VbHMDO=an_cVow-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-05-03 11:15                       ` Mark Brown
2012-05-03 12:59                       ` Rafael J. Wysocki
     [not found]                         ` <201205031459.25262.rjw-KKrjLPT3xs0@public.gmane.org>
2012-05-03 13:39                           ` Mark Brown
     [not found]                             ` <20120503133907.GG3955-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-03 19:25                               ` Rafael J. Wysocki
     [not found]                                 ` <201205032125.37631.rjw-KKrjLPT3xs0@public.gmane.org>
2012-05-04 12:58                                   ` Mark Brown
     [not found]                                     ` <20120504125830.GM14230-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-05-04 18:50                                       ` Rafael J. Wysocki

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