Messages in this thread Patch in this message | | | From | Chunfeng Yun <> | Subject | [PATCH next v10 01/11] dt-binding: usb: add usb-role-switch property | Date | Fri, 23 Aug 2019 15:57:11 +0800 |
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Add a property usb-role-switch to tell the driver that use USB Role Switch framework to handle the role switch, it's useful when the driver has already supported other ways, such as extcon framework etc.
Cc: Biju Das <biju.das@bp.renesas.com> Cc: Yu Chen <chenyu56@huawei.com> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> --- v7~v10: no changes
v6: 1. merge into this series patch 2. add Reviewed-by
(no v4, v5)
v3: add property type, modify description suggested by Heikki
v2: describe it in terms of h/w functionality suggested by Rob
v1: the property is discussed in: [v2,2/7] dt-bindings: usb: renesas_usb3: add usb-role-switch property https://patchwork.kernel.org/patch/10852497/
Mediatek and Hisilicon also try to use it: [v4,3/6] dt-bindings: usb: mtu3: add properties about USB Role Switch https://patchwork.kernel.org/patch/10918385/ [v4,6/6] usb: mtu3: register a USB Role Switch for dual role mode https://patchwork.kernel.org/patch/10918367/
[v6,10/13] usb: dwc3: Registering a role switch in the DRD code https://patchwork.kernel.org/patch/10909981/ --- Documentation/devicetree/bindings/usb/generic.txt | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt index 0a74ab8dfdc2..cf5a1ad456e6 100644 --- a/Documentation/devicetree/bindings/usb/generic.txt +++ b/Documentation/devicetree/bindings/usb/generic.txt @@ -30,6 +30,10 @@ Optional properties: optional for OTG device. - adp-disable: tells OTG controllers we want to disable OTG ADP, ADP is optional for OTG device. + - usb-role-switch: boolean, indicates that the device is capable of assigning + the USB data role (USB host or USB device) for a given + USB connector, such as Type-C, Type-B(micro). + see connector/usb-connector.txt. This is an attribute to a USB controller such as: -- 2.23.0
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