[RFC/PATCH 0/3] CLK: add more devm_* APIs

Russell King - ARM Linux linux at arm.linux.org.uk
Tue Nov 20 04:34:45 EST 2012


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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