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SubjectRe: [PATCH 1/2] ASoC: atmel-classd: add the Audio Class D Amplifier code
On Thu, Sep 10, 2015 at 10:31:04AM +0800, Wu, Songjun wrote:
> On 9/9/2015 17:52, Mark Brown wrote:

> >Yes, that's what's going to end up happening but it's not how controls
> >are expected to behave - applications will expect changing one control
> >to leave others unaffected so it's better to return an error rather than
> >change the other control.

> If application change non EQ controls, the others will be unaffected. But
> the classD IP can only supports one EQ control at once, these three EQ
> controls point to the same register field, if application set a different EQ
> control, the error occurs, there will be many errors, it's not very
> reasonable to application. The best way I think is if application set one EQ
> control, the other EQ controls will change to 0dB, it's also consistent with
> fact.

There's no really good solutions here - this is why my initial
suggestion was to have a single enumerated control.
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