[rtc-linux] Re: [PATCH v2 2/6] rtc: omap: Add external clock enabling support

[Alexandre Belloni <alexandre.belloni@free-electrons.com>]

On 13/08/2015 at 20:17:23 +0000, Paul Walmsley wrote :
> > I'd say that I don't really care. I'd say the best would be to make a
> > decision based on clock-accuracy but maybe that is an information you
> > don't have yet. Anyway, this could be added at a later date.
> 
> Either the clock mux logic is glitchless, in which case the RTC is likely 
> to lose at least 31 microseconds per switch; or it's not glitchless, in 
> which case it's unsafe to switch the RTC clock source while the clock 
> isn't gated.  Keerthy, before submitting this patch for merging, I'd 
> suggest consulting your hardware folks to figure out which case it is.
> 

Don't take me wrong, your point is perfectly valid. I was just saying
that I didn't care what was done in the driver. Obviously, this has to
match what is best from a hardware point of view. But since we agreed on
the DT bindings, I'd say that we can still adjust the driver later.


-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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