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Date: Wed, 6 Apr 2011 00:22:15 +0200
Message-ID: <BANLkTins_YaNYSRc1ryZuRSnGKO2MEemuA@mail.gmail.com>
Subject: Re: [GIT PULL] omap changes for v2.6.39 merge window
From: Linus Walleij <linus.walleij@linaro.org>
To: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: david@lang.hm, Russell King - ARM Linux <linux@arm.linux.org.uk>,
        Arnd Bergmann <arnd@arndb.de>, Nicolas Pitre <nico@fluxnic.net>,
        Marc Zyngier <Marc.Zyngier@arm.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        lkml <linux-kernel@vger.kernel.org>, Tony Lindgren <tony@atomide.com>,
        linux-arm-kernel@lists.infradead.org, "H. Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>, linux-omap@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Ingo Molnar <mingo@elte.hu>, Detlef Vollmann <dv@vollmann.ch>,
        David Brown <davidb@codeaurora.org>
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2011/4/5 Santosh Shilimkar <santosh.shilimkar@ti.com>:

> The only issue I see is the clock-events implemented using
> local timers capabilities in low power modes. The local timers
> won't be able wakeup CPU from DORMANT or OFF state and hence
> you will need an additional wakeup capable clock-event
> working together with the local timers using clock-notifiers.

And this is because the IRQs it emits are local and thus cannot wake
the system? This sounds way backwards... A simple na?ve solution
would have been to just route out an external IRQ line back from a
selected timer and into the GIC so it will be able to wake up the
system, right?

Yours,
Linus Walleij
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