[PATCH v1] ASoC: nau8822: export right speaker inversion

Francesco Dolcini francesco.dolcini at toradex.com
Mon Feb 7 18:03:51 CET 2022


Hello Mark,

On Mon, Feb 07, 2022 at 04:02:29PM +0000, Mark Brown wrote:
> On Mon, Feb 07, 2022 at 04:32:29PM +0100, Francesco Dolcini wrote:
> > From: Max Krummenacher <max.krummenacher at toradex.com>
> > 
> > This control inverts the signal fed to the right amplifier.
> > This allows to connect one loudspeaker to the two speaker amplifiers
> > in a bridge-tied load configuration getting higher output power.
> 
> Is the value chosen for this not going to be a property of how the board
> is wired up, in which case it should be handled as a DT property rather
> than varied at runtime?

Not really, in our board we do have a L/R loudspeaker connector and the
end user either connects a mono speaker to the left and right channel
and enable this control to get more power out of it. Or you can just
connect a stereo speaker.

Enabling this control to me does not depend on the board.

Francesco



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