Re: [PATCH v4 2/2] ASoC: rt715:add micmute led state control supports

From: Mark Brown
Date: Mon Mar 08 2021 - 12:26:05 EST


On Mon, Mar 01, 2021 at 05:38:34PM +0800, Perry Yuan wrote:

> + /* Micmute LED state changed by muted/unmute switch */
> + if (mc->invert) {
> + if (ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1]) {
> + micmute_led = LED_OFF;
> + } else {
> + micmute_led = LED_ON;
> + }
> + ledtrig_audio_set(LED_AUDIO_MICMUTE, micmute_led);
> + }

These conditionals on inversion seem weird and counterintuitive. If
we're going with this approach it would probably be clearer to define a
custom operation for the affected controls that wraps the standard one
and adds the LED setting rather than keying off invert like this.

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