[PATCH] clk: provide public clk_is_enabled function

[Uwe Kleine-König]

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

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