Re: [PATCH 1/2] ASoC: rt5677: allow multiple interrupt sources

From: Fletcher Woodruff
Date: Wed Apr 03 2019 - 17:32:40 EST

On Mon, Apr 1, 2019 at 11:02 PM Mark Brown <broonie@xxxxxxxxxx> wrote:
> regmap-irq should support active high/low, and if it doesn't it can't be
> a unique thing that only this device wants to implement so the common
> code should be improved.

The rt5677 driver needs its own irq regardless for hotword detection.
If we implemented this in regmap-irq, we wouldn't be able to use it.

> This looks unrelated to the polarity of the interupt?

Yes this is separate. If a plug/unplug happens after regmap_read and
before regmap_write, it will not be registered, so we loop to make
sure that it's caught in a later iteration. I can clarify this in the
patch notes.