| Message ID | 20210119101044.1637023-5-howardyen@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | add xhci hooks for USB offload | expand |
On Tue, Jan 19, 2021 at 06:10:44PM +0800, Howard Yen wrote: > Document USB offload support for usb-xhci. Is this a standard XHCI capability or specific to certain implementations? Do all versions of DWC3 support it? > > For example: > > &usbdrd_dwc3 { > ... > /* support usb offloading, 0: disabled, 1: audio */ > offload = <1>; > ... > }; > > Signed-off-by: Howard Yen <howardyen@google.com> > --- > Documentation/devicetree/bindings/usb/usb-xhci.txt | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt > index b120dd6612a2..aab1fd499f15 100644 > --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt > +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt > @@ -46,6 +46,7 @@ Optional properties: > - quirk-broken-port-ped: set if the controller has broken port disable mechanism > - imod-interval-ns: default interrupt moderation interval is 5000ns > - phys : see usb-hcd.yaml in the current directory > + - offload: supporting USB offload feature, 0: disabled, 1: audio What does not present mean? Unless you need 'keep the h/w default', then this can be boolean instead. > > additionally the properties from usb-hcd.yaml (in the current directory) are > supported. > -- > 2.30.0.284.gd98b1dd5eaa7-goog >
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt index b120dd6612a2..aab1fd499f15 100644 --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt @@ -46,6 +46,7 @@ Optional properties: - quirk-broken-port-ped: set if the controller has broken port disable mechanism - imod-interval-ns: default interrupt moderation interval is 5000ns - phys : see usb-hcd.yaml in the current directory + - offload: supporting USB offload feature, 0: disabled, 1: audio additionally the properties from usb-hcd.yaml (in the current directory) are supported.
Document USB offload support for usb-xhci. For example: &usbdrd_dwc3 { ... /* support usb offloading, 0: disabled, 1: audio */ offload = <1>; ... }; Signed-off-by: Howard Yen <howardyen@google.com> --- Documentation/devicetree/bindings/usb/usb-xhci.txt | 1 + 1 file changed, 1 insertion(+)