On Fri, Oct 28, 2022 at 12:56:16PM +0100, Mark Brown wrote:
On Fri, Oct 28, 2022 at 06:24:49PM +0800, Ajye Huang wrote:
Document dmic_sel-gpios optional prop for switching between two DMICs. Ex, the GPIO can control a MUX to select Front or Rear dmic.
- dmic_sel-gpios:
s/_/-/
- maxItems: 1
- description: GPIO for switching between DMICs, ex Front/Rear dmic
If we're going to do this we should also allow the bindings to label the mics appropriately so that the control presented can reflect the actual hardware. It does feel like it might fit better to do this separately to the DMIC driver as a mux between the DMIC and the DAI it's connected to but equally with the way things are at the minute that feels like it's probably disproportionate effort.
Are there other needs for DAI muxes? We already have a mux binding, so defining a DAI mux would work for any type of muxing control, not just GPIO.
Rob