From: u.kleine-koenig@pengutronix.de (Uwe Kleine-König)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] clk: provide public clk_is_enabled function
Date: Sat, 5 Oct 2013 22:24:30 +0200 [thread overview]
Message-ID: <20131005202430.GI10079@pengutronix.de> (raw)
In-Reply-To: <1380881310-24345-1-git-send-email-sebastian.hesselbarth@gmail.com>
On Fri, Oct 04, 2013 at 12:08:30PM +0200, Sebastian Hesselbarth wrote:
> To determine if a clk has been previously enabled, provide a public
> clk_is_enabled function. This is especially helpful to check the state
> of clk-gate without actually changing the state of the gate.
I wonder what you want to do with the return value.
When doing
if (clk_is_enabled(someclk))
do_something();
you cannot in general know if the clock is still on when you start to
do_something.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-K?nig |
Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2013-10-05 20:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-04 10:08 [PATCH] clk: provide public clk_is_enabled function Sebastian Hesselbarth
2013-10-04 13:17 ` Andrew Lunn
2013-10-05 20:24 ` Uwe Kleine-König [this message]
2013-10-05 20:42 ` Andrew Lunn
2013-10-06 9:06 ` Gerhard Sittig
2013-10-06 16:30 ` Andrew Lunn
2013-10-06 19:42 ` Sebastian Hesselbarth
2013-10-06 20:02 ` Mike Turquette
2013-10-06 22:24 ` Sebastian Hesselbarth
2013-10-06 21:04 ` Mike Turquette
2013-10-07 8:39 ` Sebastian Hesselbarth
2013-10-06 21:35 ` Andrew Lunn
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