| Message ID | 1650517255-4871-2-git-send-email-quic_c_sanm@quicinc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Skip phy initialization for DWC3 USB Controllers | expand |
On Thu, Apr 21, 2022 at 10:30:53AM +0530, Sandeep Maheswaram wrote: > Adding bindings for usb-skip-phy-init property. > Runtime suspend of phy drivers was failing from DWC3 driver as > runtime usage value is 2 because the phy is initialized from > DWC3 core and HCD core. > Some controllers like DWC3 and CDNS3 manage phy in their core drivers. > This property can be set to avoid phy initialization in HCD core. > > Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com> > --- > Documentation/devicetree/bindings/usb/usb-xhci.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.yaml b/Documentation/devicetree/bindings/usb/usb-xhci.yaml > index 965f87f..a64d29f 100644 > --- a/Documentation/devicetree/bindings/usb/usb-xhci.yaml > +++ b/Documentation/devicetree/bindings/usb/usb-xhci.yaml > @@ -25,6 +25,10 @@ properties: > description: Set if the controller has broken port disable mechanism > type: boolean > > + usb-skip-phy-init: > + description: Set if the phy initialization is managed by controller > + type: boolean > + This should be implied by platform specific compatibles. Rob
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.yaml b/Documentation/devicetree/bindings/usb/usb-xhci.yaml index 965f87f..a64d29f 100644 --- a/Documentation/devicetree/bindings/usb/usb-xhci.yaml +++ b/Documentation/devicetree/bindings/usb/usb-xhci.yaml @@ -25,6 +25,10 @@ properties: description: Set if the controller has broken port disable mechanism type: boolean + usb-skip-phy-init: + description: Set if the phy initialization is managed by controller + type: boolean + imod-interval-ns: description: Interrupt moderation interval default: 5000
Adding bindings for usb-skip-phy-init property. Runtime suspend of phy drivers was failing from DWC3 driver as runtime usage value is 2 because the phy is initialized from DWC3 core and HCD core. Some controllers like DWC3 and CDNS3 manage phy in their core drivers. This property can be set to avoid phy initialization in HCD core. Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com> --- Documentation/devicetree/bindings/usb/usb-xhci.yaml | 4 ++++ 1 file changed, 4 insertions(+)