From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare
Date: Fri, 15 Mar 2013 17:12:00 +0000 [thread overview]
Message-ID: <20130315171200.GN4977@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <5142B027.4040403@wwwdotorg.org>
On Thu, Mar 14, 2013 at 11:22:47PM -0600, Stephen Warren wrote:
> Is clk_set_rate() only legal to call in non-atomic contexts then? The
> header file doesn't say, although I guess since many other functions
> explicitly say they can't, then by omission it can...
I think when all this was discussed alongside the clk_prepare/clk_unprepare
stuff, that yes, it was decided that clk_set_rate() was non-atomic only.
And yes, that is most definitely the case, because the first thing
clk_set_rate() does is take a mutex - which will trigger a might_sleep()
complaint if ever called from an atomic context.
next prev parent reply other threads:[~2013-03-15 17:12 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-12 12:37 [RFC 1/1] clk: Add notifier support in clk_prepare_enable/clk_disable_unprepare Bill Huang
2013-03-12 13:40 ` Russell King - ARM Linux
2013-03-13 1:47 ` Bill Huang
2013-03-13 4:42 ` Stephen Warren
2013-03-13 5:08 ` Bill Huang
2013-03-13 5:24 ` Stephen Warren
2013-03-13 5:40 ` Bill Huang
2013-03-13 18:10 ` Stephen Warren
2013-03-14 2:15 ` Bill Huang
2013-03-14 9:21 ` Peter De Schrijver
2013-03-14 9:28 ` Bill Huang
2013-03-14 17:54 ` Stephen Warren
2013-03-15 1:20 ` Bill Huang
2013-03-15 5:22 ` Stephen Warren
2013-03-15 5:48 ` Bill Huang
2013-03-15 9:39 ` Peter De Schrijver
2013-03-15 10:08 ` Ulf Hansson
2013-03-15 12:06 ` Bill Huang
2013-03-15 12:33 ` Ulf Hansson
2013-03-15 19:38 ` Stephen Warren
2013-03-16 1:54 ` Bill Huang
2013-03-18 10:36 ` Ulf Hansson
2013-03-21 22:28 ` Mike Turquette
2013-03-16 2:23 ` Bill Huang
2013-03-15 17:12 ` Russell King - ARM Linux [this message]
2013-03-15 17:09 ` Russell King - ARM Linux
2013-03-16 2:25 ` Bill Huang
2013-03-15 16:59 ` Russell King - ARM Linux
2013-03-15 16:57 ` Russell King - ARM Linux
2013-03-15 18:44 ` Nicolas Pitre
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