linux-kernel - Re: [PATCH] clockevents: don't suspend/resume if unused

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Message-ID: <alpine.DEB.2.11.1505252046400.5457@nanos>
Date:	Mon, 25 May 2015 20:48:06 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
cc:	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	sylvain.rochet@...secur.com, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clockevents: don't suspend/resume if unused

On Fri, 16 Jan 2015, Alexandre Belloni wrote:

> There is no point in calling suspend/resume for unused
> clockevents as they are already stopped and disabled.
> 
> Furthermore, it can take some time to wait for some IPs to stop counting.

While I agree with the patch itself, I really can't understand that
last sentence.

If stuff is stopped and disabled, what takes time to stop counting?
 
Thanks,

	tglx
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