linux-kernel - Re: [RFC/PATCH 0/3] CLK: add more devm

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Message-ID: <20121120093445.GL3290@n2100.arm.linux.org.uk>
Date:	Tue, 20 Nov 2012 09:34:45 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Mike Turquette <mturquette@...com>,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: Re: [RFC/PATCH 0/3] CLK: add more devm_* APIs

On Tue, Nov 20, 2012 at 01:22:16AM -0800, Dmitry Torokhov wrote:
> Hi,
> 
> When looking at recent driver conversions to managed resources (devm_*) there
> is no devm_clk_prepare() and similar functions, which forces mixing of 2
> resource management styles (managed/classic) in the same driver, which is not
> great.
> 
> This patch series adds more devm_* managed APIs to the CLK subsystem so that
> driver conversions can be "pure".

So, how do you ensure the correct ordering between clk_unprepare() and
clk_put(), or even clk_disable() and clk_unprepare() ?  I see nothing
here which makes any guarantees as to the ordering of those operations
upon cleanup.
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