On Sun, Mar 28, 2021 at 03:15:20AM +0800, Ray Chi wrote: > This commit adds documentation for usb-psy-name string. > The string will use to find the power supply interface. > And then, DWC3 can use the interface to control charing > current with USB state and USB speed. Why is this DWC3 specific? Where does it find the power supply interface? > > Signed-off-by: Ray Chi <raychi@xxxxxxxxxx> > --- > Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > index 2247da77eac1..ad62f4552fad 100644 > --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > @@ -301,6 +301,13 @@ properties: > items: > enum: [1, 4, 8, 16, 32, 64, 128, 256] > > + usb-psy-name: > + description: > + Contains the name for power supply interface. To follow > + BC1.2 specification, DWC3 could use power supply interface > + to control current with corresponding USB state and USB speed. > + minItems: 1 > + > unevaluatedProperties: false > > required: > -- > 2.31.0.291.g576ba9dcdaf-goog >
