linux-kernel - Re: [PATCH 6/6 v6] cpufreq, highbank: add support for highbank cpufreq

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Message-ID: <20121128151741.GC28170@S2100-06.ap.freescale.net>
Date:	Wed, 28 Nov 2012 23:17:44 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Mark Langsdorf <mark.langsdorf@...xeda.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>
Subject: Re: [PATCH 6/6 v6] cpufreq, highbank: add support for highbank
 cpufreq

On Wed, Nov 28, 2012 at 10:58:02PM +0800, Shawn Guo wrote:
> On Wed, Nov 28, 2012 at 07:16:12AM -0600, Mark Langsdorf wrote:
> > I'd
> > have to move most of the logic of hb_set_target() into
> > clk_highbank.c:clk_pll_set_rate() and then add extra logic for when
> > cpufreq is not enabled/loaded.
> 
> You only need to move hb_voltage_change() into cpu clock's .set_rate()
> hook with no need of checking if cpufreq is enabled or not.
> 
Need to also check whether frequency or voltage should be changed first
in .set_rate() though.

Shawn

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