On Sat, 2020-12-05 at 18:24 +0300, Serge Semin wrote: > DWC USB3 DT node is supposed to be compliant with the Generic xHCI > Controller schema, but with additional vendor-specific properties, the > controller-specific reference clocks and PHYs. So let's convert the > currently available legacy text-based DWC USB3 bindings to the DT schema > and make sure the DWC USB3 nodes are also validated against the > usb-xhci.yaml schema. > > Note 1. we have to discard the nodename restriction of being prefixed with > "dwc3@" string, since in accordance with the usb-hcd.yaml schema USB nodes > are supposed to be named as "^usb(@.*)". > > Note 2. The clock-related properties are marked as optional to match the > DWC USB3 driver expectation and to improve the bindings mainainability > so in case if there is a glue-node it would the responsible for the > clocks initialization. > > Signed-off-by: Serge Semin <sergey.se...@baikalelectronics.ru> > > --- > > Changelog v2: > - Discard '|' from the descriptions, since we don't need to preserve > the text formatting in any of them. > - Drop quotes from around the string constants. > - Fix the "clock-names" prop description to be referring the enumerated > clock-names instead of the ones from the Databook. > > Changelog v3: > - Apply usb-xhci.yaml# schema only if the controller is supposed to work > as either host or otg. > > Changelog v4: > - Apply usb-drd.yaml schema first. If the controller is configured > to work in a gadget mode only, then apply the usb.yaml schema too, > otherwise apply the usb-xhci.yaml schema. > - Discard the Rob'es Reviewed-by tag. Please review the patch one more > time. > > Changelog v5: > - Add "snps,dis-split-quirk" property to the DWC USB3 DT schema. > - Add a commit log text about the clock-related property changes. > - Make sure dr_mode exist to apply the USB-gadget-only schema. > --- > .../devicetree/bindings/usb/dwc3.txt | 128 ------- > .../devicetree/bindings/usb/snps,dwc3.yaml | 312 ++++++++++++++++++ > 2 files changed, 312 insertions(+), 128 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/usb/dwc3.txt > create mode 100644 Documentation/devicetree/bindings/usb/snps,dwc3.yaml > > diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt > b/Documentation/devicetree/bindings/usb/dwc3.txt > deleted file mode 100644 > index 1aae2b6160c1..000000000000 > --- a/Documentation/devicetree/bindings/usb/dwc3.txt > +++ /dev/null > @@ -1,128 +0,0 @@ > -synopsys DWC3 CORE > - [...] > + > + clock-names: > + contains: > + anyOf: > + - enum: [bus_early, ref, suspend] > + - true > + > + usb-phy: > + minItems: 1 indentation: expected 4 > + items: > + - description: USB2/HS PHY > + - description: USB3/SS PHY > + > + phys: > + minItems: 1 > + items: > + - description: USB2/HS PHY > + - description: USB3/SS PHY > + > + phy-names: > + minItems: 1 > + items: > + - const: usb2-phy > + - const: usb3-phy [...]
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