[PATCH v2 02/21] ASoC: dt-bindings: cs42l42: Do not require chip power supplies

[James Calligeros]

On Friday, 9 October 2026 5:10:01 pm Australian Eastern Standard Time 
Krzysztof Kozlowski wrote:
> On Sun, Oct 04, 2026 at 04:03:29PM +1000, James Calligeros wrote:
> > Some integrators do not expose the power rails connected to the codec
> > in a way that can be expressed in the Devicetree. Do not require them
> > to be specified on such platforms.
> 
> I don't understand how these cannot be expressed in Devicetree. What are
> we missing?

On Apple devices, the regulator(s) driving these pins are completely opaque.
They are not exposed via the Apple Devicetree or any other discoverable
interface, and they are not controllable. As far as we can tell, the pins in
question are powered whenever the machine is powered on.