Create an ulpi-phy binding to read and write PHY registers with explicit control of the address and data using the usb.VIEWPORT register. Signed-off-by: Piyush Mehta <piyush.mehta@xxxxxxx> --- This binding patch was created to support generic platforms. This binding will be modified in accordance with patch [3/3] procedures. One of the approch may be Create a zynq phy platform driver in "driver/usb/phy" with driver source "phy-ulpi-zynq-usb.c" and then the binding will be particular to the Xilinx/AMD zynq platform. This binding was built with the Zynq hardware design example in consideration of as a generic platform. The viewport provide access the Chipidea controller to interface with the ULPI PHY. --- .../devicetree/bindings/usb/ulpi-phy.yaml | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ulpi-phy.yaml diff --git a/Documentation/devicetree/bindings/usb/ulpi-phy.yaml b/Documentation/devicetree/bindings/usb/ulpi-phy.yaml new file mode 100644 index 000000000000..490b2f610129 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ulpi-phy.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/ulpi-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ULPI PHY- Generic platform + +maintainers: + - Piyush Mehta <piyush.mehta@xxxxxxx> + +properties: + compatible: + const: ulpi-phy + + reg: + maxItems: 1 + + '#phy-cells': + const: 0 + + external-drv-vbus: + description: + If present, configure ulpi-phy external supply to drive 5V on VBus. + type: boolean + + view-port: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Address to read and write PHY registers with explicit control of + the address and data using the usb.VIEWPORT register. + +required: + - compatible + - reg + - view-port + +additionalProperties: false + +examples: + - | + phy0@e0002000 { + compatible = "ulpi-phy"; + #phy-cells = <0x00>; + reg = <0xe0002000 0x1000>; + view-port = <0x170>; + external-drv-vbus; + }; -- 2.17.1
