From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Ulf Hansson <ulf.hansson@stericsson.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
Vipul Kumar Samar <vipulkumar.samar@st.com>,
Russell King <linux@arm.linux.org.uk>,
Viresh Kumar <viresh.kumar@linaro.org>,
Linus Walleij <linus.walleij@linaro.org>,
Grant Likely <grant.likely@secretlab.ca>,
spi-devel-general@lists.sourceforge.net,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] spi/pl022: Activate resourses before deactivate them in suspend
Date: Sat, 27 Oct 2012 22:46:44 +0100 [thread overview]
Message-ID: <20121027214642.GH4564@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1349423012-18048-1-git-send-email-ulf.hansson@stericsson.com>
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On Fri, Oct 05, 2012 at 09:43:32AM +0200, Ulf Hansson wrote:
> To be able to deactivate resourses in suspend, the resourses must
> first be surely active. This is done with a pm_runtime_get_sync.
> Once the resourses are restored to active state again in resume,
> the runtime pm usage count can be decreased with a pm_runtime_put.
The PM core will ensure devices are runtime resumed before we enter
suspend precisely due to this sort of issue.
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next prev parent reply other threads:[~2012-10-27 21:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-05 7:43 [PATCH] spi/pl022: Activate resourses before deactivate them in suspend Ulf Hansson
[not found] ` <1349423012-18048-1-git-send-email-ulf.hansson-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org>
2012-10-12 14:42 ` Ulf Hansson
[not found] ` <CAPDyKFpa8XoEy-kq3nq0dbRtM=a1wJ7cx=OzCOqMY1PmXrXJYw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-10-14 5:27 ` Mark Brown
2012-10-27 21:46 ` Mark Brown [this message]
2012-10-28 19:52 ` Linus Walleij
[not found] ` <CACRpkdbCfxnSSLR6GoSbAxtfnwOivxCCrLtwnR=9tpwpfACqTQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-10-28 20:28 ` Ulf Hansson
[not found] ` <CAPDyKFoOJz6608b4z2PoW8ODvTJVZRq-yB0itfXnuoXdR1SpGQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-10-28 21:09 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1210281659520.9245-100000-pYrvlCTfrz9XsRXLowluHWD2FQJk+8+b@public.gmane.org>
2012-10-30 17:05 ` Ulf Hansson
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