linux-kernel - Re: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support

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Message-ID: <BANLkTinPKbUu40066+wr3cdFRc2di-Uv6g@mail.gmail.com>
Date:	Tue, 31 May 2011 23:18:25 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Mattias Wallin <mattias.wallin@...ricsson.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Lee Jones <lee.jones@...aro.org>
Subject: Re: [PATCH 2/3] clocksource: add DB8500 PRCMU Timer support

On Tue, May 31, 2011 at 7:00 PM, Mattias Wallin
<mattias.wallin@...ricsson.com> wrote:
> On 05/31/2011 12:38 PM, Thomas Gleixner wrote:

>>> +++ b/include/linux/clksrc-db8500-prcmu.h

>> Huch, why needs this to be a separate head in include/linux ?
>
> I will move the header file to mach-ux500/include/mach/. Ok?
>
> (I have long time ago been thought to avoid include mach headers from the
> drivers. But if I understand it correct it is not true any more and in this
> case it certainly makes no sense since I break that rule myself.)

Keeping it under include/linux is probably wise since we want drivers
OUT of the ARM tree, but I don't know if there is much consensus on that?

I was more understanding the question as why it was needed at all.

Does it work to register the clocksource with say a core_initcall()
and avoid the header altogether?

Else a header is needed since we need to call out from the platform timer
init function to this clocksource to register it.

Thanks,
Linus Walleij
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