Messages in this thread | | | Date | Sat, 5 Oct 2013 22:24:30 +0200 | From | Uwe Kleine-König <> | Subject | Re: [PATCH] clk: provide public clk_is_enabled function |
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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-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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