[PATCH 2/7] dt-bindings: usb: dwc3: Add a gpio-usb-connector example

Bryan O'Donoghue
2020-03-11T19:16:18Z

A USB connector should be a child node of the USB controller
connector/usb-connector.txt. This patch adds an example of how to do this
to the dwc3 binding descriptions.

It is necessary to declare a connector as a child-node of a USB controller
for role-switching to work, so this example should be helpful to others
implementing that.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-usb@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Felipe Balbi <balbi@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
Documentation/devicetree/bindings/usb/dwc3.txt | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index 66780a47ad85..4e1e4afccee6 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -121,4 +121,12 @@ dwc3@4a030000 {
interrupts = <0 92 4>
usb-phy = <&usb2_phy>, <&usb3,phy>;
snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
+
+ usb_con: connector {
+ compatible = "gpio-usb-b-connector";
+ id-gpios = <&tlmm 116 GPIO_ACTIVE_HIGH>;
+ vbus-supply = <&usb3_vbus_reg>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb3_id_pin>, <&usb3_vbus_pin>;
+ };
};
--
2.25.1