linux-kernel - Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH

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Message-ID: <4C7809ED.9070506@linux.intel.com>
Date:	Fri, 27 Aug 2010 11:54:37 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	Grant Likely <grant.likely@...retlab.ca>,
	Masayuki Ohtak <masa-korg@....okisemi.com>,
	meego-dev@...go.com, LKML <linux-kernel@...r.kernel.org>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	qi.wang@...el.com, yong.y.wang@...el.com,
	andrew.chih.howe.khor@...el.com, gregkh@...e.de,
	Tomoya MORINAGA <morinaga526@....okisemi.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_SPI driver to 2.6.35

On 8/27/2010 11:53 AM, Thomas Gleixner wrote:
> B1;2401;0cOn Fri, 27 Aug 2010, Grant Likely wrote:
>    
>> [cc'ing Thomas Gleixner and David Woodhouse since this driver needs to
>> get some data about the platform (to know what spi_devices are
>> present) and I don't know how that is handled for x86 SoCs.]
>>      
> The best way to do all this platform specific configuration is to use
> device tree. I really don't want to have x86/mach-xyz/board[A-Z]
> horror, which is unavoidable when we don't get a sensible way to
> configure the boards. SFI was meant to provide a lightweight ACPI, but
> now that device tree is generic and more platforms are using it, I
> really want to standartize on that and forget SFI.
>
> That makes even more sense, as all these AMBA peripherals which are
> duct-taped to a x86 core can be found in other SoCs with different
> cores as well.
>    

I tentatively agree, but this has to coexist with ACPI, which most of 
these platforms will also have,
for power management if nothing else.

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