linux-kernel - Re: equalizer cfg in max98088 driver

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Message-ID: <YsQd7mub0KJdYUDw@sirena.org.uk>
Date:   Tue, 5 Jul 2022 12:18:06 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: equalizer cfg in max98088 driver

On Tue, Jul 05, 2022 at 09:55:00AM +0200, Tommaso Merciai wrote:

> Just a question. Can you explain me the proper way to configure eq1 and
> eq2 of max98089 using sound/soc/codecs/max98088.c driver?
> Could be a valid solution fetching eq1, eq2 bands params from dts?

There's plenty of examples of equalisers in the code already.  I don't
know how this specific device works but generally these are either
exposed as a series of volume like sliders or as binary controls.  This
doesn't restrict people to settings from the firmware, making
development of new configuraitons much easier.

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