[PATCH 04/12] ASoC: cs42l42: Don't reconfigure the PLL while it is running

Richard Fitzgerald rf at opensource.cirrus.com
Wed Aug 11 12:56:34 CEST 2021


On 10/08/2021 16:49, Mark Brown wrote:
> On Tue, Aug 10, 2021 at 04:37:51PM +0100, Richard Fitzgerald wrote:
>> cs42l42_pcm_hw_params() must only configure the PLL if this is the first
>> stream to become active, otherwise it will be overwriting the registers
>> while the PLL is running.
> 
> Shouldn't the PLL code be noticing problematic attempts to reconfigure
> the PLL while it's active rather than the individual callers?
> 

I'll push a new version with cs42l42_pll_config() doing the check.


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