| Message ID | 1524039005-30618-3-git-send-email-yoshihiro.shimoda.uh@renesas.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
On Wed, Apr 18, 2018 at 05:09:56PM +0900, Yoshihiro Shimoda wrote: > This patch adds a new documentation for a usb role switch driver. > The usb role switch framework will parse this to get each device > pointer by using each remote-endpoint. Bindings describe h/w, not drivers. This doesn't look like a h/w device. > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> > --- > .../devicetree/bindings/usb/usb-role-switch.txt | 42 ++++++++++++++++++++++ > 1 file changed, 42 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/usb-role-switch.txt > > diff --git a/Documentation/devicetree/bindings/usb/usb-role-switch.txt b/Documentation/devicetree/bindings/usb/usb-role-switch.txt > new file mode 100644 > index 0000000..941d582 > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/usb-role-switch.txt > @@ -0,0 +1,42 @@ > +USB role switch driver > + > +Optional nodes: > +- If a role switch driver has OF graph ports, the usb role switch framework > + will parse the remote-endpoints in usb_role_switch_register(). The OF graph > + port number as follows: > + 0: USB 2.0 host port > + 1: USB 3.0 host port > + 2: UDC port > + > +For example: > + usb-role-sw { > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + usb2_host_sw0: endpoint { > + remote-endpoint = <&usb2_host_ep0>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + usb3_host_sw0: endpoint { > + remote-endpoint = <&usb3_host_ep0>; > + }; > + }; > + > + port@2 { > + reg = <2>; > + > + udc_sw0: endpoint { > + remote-endpoint = <&udc_ep0>; > + }; > + }; > + }; > + }; > -- > 1.9.1 >
diff --git a/Documentation/devicetree/bindings/usb/usb-role-switch.txt b/Documentation/devicetree/bindings/usb/usb-role-switch.txt new file mode 100644 index 0000000..941d582 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/usb-role-switch.txt @@ -0,0 +1,42 @@ +USB role switch driver + +Optional nodes: +- If a role switch driver has OF graph ports, the usb role switch framework + will parse the remote-endpoints in usb_role_switch_register(). The OF graph + port number as follows: + 0: USB 2.0 host port + 1: USB 3.0 host port + 2: UDC port + +For example: + usb-role-sw { + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + usb2_host_sw0: endpoint { + remote-endpoint = <&usb2_host_ep0>; + }; + }; + + port@1 { + reg = <1>; + + usb3_host_sw0: endpoint { + remote-endpoint = <&usb3_host_ep0>; + }; + }; + + port@2 { + reg = <2>; + + udc_sw0: endpoint { + remote-endpoint = <&udc_ep0>; + }; + }; + }; + };
This patch adds a new documentation for a usb role switch driver. The usb role switch framework will parse this to get each device pointer by using each remote-endpoint. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> --- .../devicetree/bindings/usb/usb-role-switch.txt | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/usb-role-switch.txt