Re: [PATCH 0/4] ASoC: Add support for GPIOs driven amplifiers

[Mark Brown]

On Mon, Mar 30, 2026 at 12:16:04PM +0200, Herve Codina wrote:
> On some embedded system boards, audio amplifiers are designed using
> discrete components such as op-amp, several resistors and switches to
> either adjust the gain (switching resistors) or fully switch the
> audio signal path (mute and/or bypass features).
> 
> Those switches are usually driven by simple GPIOs.

This sounds a lot like simple-amplifier.c?

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