[PATCH v1 3/4] ASoC: Intel: bytcr_rt5651: use devm_clk_get_optional() for mclk

[Pierre-Louis Bossart]

>> We'd need to Hans to comment on this since he's really the only one
>> maintaining this code.
> 
> So as Mark wrote in his later reply:
> 
> "AIUI with the clock API the idiomatic thing is that any optionality is
> handled at the point where the clock is acquired - if the clock is
> optional you end up with NULL which in the clock API is a dummy clock
> and ignored.  The rest of the code then doesn't need to worry about any
> of this stuff and the handling can only be in one place."
> 
> Combined with there pretty much always actually being an mclk I believe
> that this patch from Andy results in a nice cleanup so I'm in favor with
> this. And the other cleanups also look sensible to me

No sustained objection on my side.

Thanks Andy for starting this thread.