Re: [PATCH 03/16] ASoC: tas2781: disable regmap regcache

Mark Brown
2023-12-15T12:55:06Z

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On Fri, Dec 15, 2023 at 02:17:01AM +0100, Gergo Koteles wrote:
> On Thu, 2023-12-07 at 22:39 +0000, Mark Brown wrote:
> > On Thu, Dec 07, 2023 at 10:12:13PM +0100, Gergo Koteles wrote:
> > > On Thu, 2023-12-07 at 20:36 +0000, Mark Brown wrote:

> > > > The code creates the impression that writing to one tas2781 writes to
> > > > all of them, is that not the case?

> > > Yes, the tasdevice_* functions, but the regcache_sync doesn't know
> > > this.

> > So this syncing is done in software not hardware? My understanding was
> > that this was a hardware thing.

> If you mean that the amplifier does not know that there are several
> programs or configurations or profiles, but only runs the current one,
> yes.

No, I mean that the amplifiers don't talk to each other at a hardware
level and the grouping is all in software.

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