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Message-ID: <BANLkTikY9VBXuT78k3GFkeG+q=ppMsz3iQ@mail.gmail.com>
Date: Fri, 13 May 2011 12:59:20 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Thomas Gleixner <tglx@...utronix.de>,
Colin Cross <ccross@...roid.com>
Cc: Santosh Shilimkar <santosh.shilimkar@...com>,
Russell King <linux@....linux.org.uk>,
Srinidhi KASAGAR <srinidhi.kasagar@...ricsson.com>,
Harald Gustafsson <harald.gustafsson@...csson.com>,
linux-kernel@...r.kernel.org,
Rickard ANDERSSON <rickard.andersson@...ricsson.com>,
martin persson <martin.persson@...ricsson.com>,
Varun Swara <Varun.Swara@....com>,
Catalin Marinas <catalin.marinas@....com>,
linux-arm-kernel@...ts.infradead.org,
Jonas Ã…berg <jonas.aberg@...ricsson.com>
Subject: Re: [PATCH] ARM: twd: Adjust localtimer frequency withcpufreqnotifiers
2011/5/13 Thomas Gleixner <tglx@...utronix.de>:
> Does the following work for you ?
This patch is interesting because it uses calc_mult_shift() and the current
localtimer driver for TWD (arch/arm/kernel/smp_twd.c) still uses hardcoded
mult+shift.
So this patch in combination with TGLX add-on in the CPUfreq path would
eliminate the need of using the prescaler at all, which is a more appealing
solution to me for one, since it results in less code.
Colin, do you think it will work? Or was there some specific reason to use
a dynamic prescaler instead of doing things like this?
Yours,
Linus Walleij
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