linux-kernel - Re: [RFC 02/17] ARM: call clk_of_init from time

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Message-Id: <201308221928.10852.arnd@arndb.de>
Date:	Thu, 22 Aug 2013 19:28:10 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Mike Turquette <mturquette@...aro.org>
Cc:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Russell King <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Stephen Warren <swarren@...dotorg.org>
Subject: Re: [RFC 02/17] ARM: call clk_of_init from time_init

On Thursday 22 August 2013, Mike Turquette wrote:
> Some timers need to know their clock rate for the timer setup. This
> could be hard-coded (e.g. for some timer driven from a fixed 32Khz
> source) but it could also be from a clock capable of different rates
> that needs to be calculated.
> 
> I remember discussing the early clock init stuff for OMAP and there was
> an idea to not rely on the clock framework for timer init and just do
> some raw reads and compute the clock rate that way. Using the framework
> would be better of course.
> 

Just to be clear: I think we should initialize all clocks before timers,
just not any earlier like Tegra does.

	Arnd
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