Re: [PATCH] ASoC: rt5682s: Add LDO control for dacref

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On Wed, Nov 01, 2023 at 02:52:20AM +0000, Jack Yu wrote:

> > > +/* LDO output select */
> > > +static const char * const rt5682s_ldo_output_select[] = {
> > > +	"1.607V", "1.5V", "1.406V", "1.731V"
> > > +};

> > This feels like something that might be a better fit for firmware based
> > selection - how would someone set a value for this, and why might it vary at
> > runtime?  I'm a bit unclear as to what the control does so this might be the
> > best thing but perhaps not.

> This control is added for specific customers, it won't be changed during runtime, 
> but will be set in the initialization regarding to different customers, 
> they'll set it in their own ucm and have already been verified by customers.

That sounds like it should come from the firmware then if it's supposed
to be fixed for a given system (which is what the above sounds like).

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