[PATCH v7 2/8] dt-bindings: usb: generic: Add role-switch-default-mode binding

From: John Stultz
Date: Wed Dec 11 2019 - 20:43:16 EST

Add binding to configure the default role the controller
assumes is host mode when the usb role is USB_ROLE_NONE.

Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
CC: ShuFan Lee <shufan_lee@xxxxxxxxxxx>
Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Cc: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
Cc: Yu Chen <chenyu56@xxxxxxxxxx>
Cc: Felipe Balbi <balbi@xxxxxxxxxx>
Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
Cc: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Cc: Jun Li <lijun.kernel@xxxxxxxxx>
Cc: Valentin Schneider <valentin.schneider@xxxxxxx>
Cc: Guillaume Gardet <Guillaume.Gardet@xxxxxxx>
Cc: Jack Pham <jackp@xxxxxxxxxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
v5: Switch to string rather then a bool
Documentation/devicetree/bindings/usb/generic.txt | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt
index cf5a1ad456e6..dd733fa81fad 100644
--- a/Documentation/devicetree/bindings/usb/generic.txt
+++ b/Documentation/devicetree/bindings/usb/generic.txt
@@ -34,6 +34,12 @@ Optional properties:
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.
+ - role-switch-default-mode: indicating if usb-role-switch is enabled, the
+ device default operation mode of controller while usb
+ role is USB_ROLE_NONE. Valid arguments are "host" and
+ "peripheral". Defaults to "peripheral" if not
+ specified.

This is an attribute to a USB controller such as: