Hi, Rob Herring <robh@xxxxxxxxxx> writes: > The Rockchip RK3399 DWC3 node has 'power-domain' property which isn't > allowed by the schema: > > usb@fe900000: Unevaluated properties are not allowed ('power-domains' was unexpected) > > Allow DWC3 nodes to have a single power-domains entry. We could instead > move the power-domains property to the parent wrapper node, but the > could be an ABI break (Linux shouldn't care). Also, we don't want to > encourage the pattern of wrapper nodes just to define resources such as > clocks, resets, power-domains, etc. when not necessary. > > Signed-off-by: Rob Herring <robh@xxxxxxxxxx> > --- > Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > index 6d78048c4613..bcefd1c2410a 100644 > --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > @@ -91,6 +91,9 @@ properties: > - usb2-phy > - usb3-phy > > + power-domains: > + maxItems: 1 AFAICT this can be incorrect. Also, you could have Cc the dwc3 maintainer to get comments. @Thinh, how many power rails does dwc3 need? I don't have access to a databook anymore, but I have a vague memory that different parts of dwc3 could, potentially, be powered by completely separate supplies, no? Or is that only the case for clock domains in dwc3? -- balbi
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