diff mbox series

[06/19] dt-bindings: usb: dwc3: Add a gpio-usb-connector description

Message ID 20200115141333.1222676-7-bryan.odonoghue@linaro.org
State New
Headers show
Series None | expand

Commit Message

Bryan O'Donoghue Jan. 15, 2020, 2:13 p.m. UTC
A USB connector should be a child node of the USB controller
connector/usb-connector.txt. This patch adds a property
"gpio_usb_connector" which declares a connector child device. Code in the
DWC3 driver will then

- Search for "gpio_usb_controller"
- Do an of_platform_populate() if found

This will have the effect of making the declared node a child of the USB
controller and will make sure that USB role-switch events detected with the
gpio_usb_controller driver propagate into the DWC3 controller code
appropriately.

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
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 Documentation/devicetree/bindings/usb/dwc3.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
index 66780a47ad85..b019bd472f83 100644
--- a/Documentation/devicetree/bindings/usb/dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/dwc3.txt
@@ -108,6 +108,9 @@  Optional properties:
 			When just one value, which means INCRX burst mode enabled. When
 			more than one value, which means undefined length INCR burst type
 			enabled. The values can be 1, 4, 8, 16, 32, 64, 128 and 256.
+ - gpio_usb_connector: Declares a USB connector named 'gpio_usb_connector' as a
+		       child node of the DWC3 block. Use when modelling a USB
+		       connector based on the gpio-usb-b-connector driver.
 
  - in addition all properties from usb-xhci.txt from the current directory are
    supported as well
@@ -121,4 +124,12 @@  dwc3@4a030000 {
 	interrupts = <0 92 4>
 	usb-phy = <&usb2_phy>, <&usb3,phy>;
 	snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
+	usb_con: gpio_usb_connector {
+		compatible = "gpio-usb-b-connector";
+		id-gpio = <&tlmm 116 GPIO_ACTIVE_HIGH>;
+		vbus-gpio = <&pms405_gpios 12 GPIO_ACTIVE_HIGH>;
+		vbus-supply = <&usb3_vbus_reg>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb3_id_pin>, <&usb3_vbus_pin>;
+	};
 };