Add DT bindings for Microchip USB47xx/USB49xx driver. Signed-off-by: Christian Eggers <ceggers@xxxxxxx> --- .../devicetree/bindings/usb/usb49xx.yaml | 238 ++++++++++++++++++ 1 file changed, 238 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/usb49xx.yaml diff --git a/Documentation/devicetree/bindings/usb/usb49xx.yaml b/Documentation/devicetree/bindings/usb/usb49xx.yaml new file mode 100644 index 000000000000..a4843f2cbefa --- /dev/null +++ b/Documentation/devicetree/bindings/usb/usb49xx.yaml @@ -0,0 +1,238 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/usb49xx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip USB47xx/USB49xx USB 2.0 Hi-Speed Hub Controller + +maintainers: + - Christian Eggers <ceggers@xxxxxxx> + +description: | + http://ww1.microchip.com/downloads/en/Appnotes/AN2651-Configuration-of-Microchip-USB47xx-USB49xx-Application-Note-00002651B.pdf + +properties: + compatible: + enum: + - microchip,usb4712 + - microchip,usb4712i + - microchip,usb4715 + - microchip,usb4715i + - microchip,usb4912 + - microchip,usb4912i + - microchip,usb4914 + - microchip,usb4914i + - microchip,usb4916 + - microchip,usb4916i + - microchip,usb4925 + - microchip,usb4925i + - microchip,usb4927 + - microchip,usb4927i + + reg: + maxItems: 1 + description: + I2C address on the selected bus (usually <0x2D>). + + reset-gpios: + maxItems: 1 + description: + Specify the gpio for hub reset. + + vdd-supply: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Specify the regulator supplying vdd. + + skip-config: + $ref: /schemas/types.yaml#/definitions/flag + description: + Skip Hub configuration, but only send the USB-Attach command. + + vendor-id: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 65535 + description: + Set USB Vendor ID of the hub. + + product-id: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 65535 + description: + Set USB Product ID of the hub. + + device-id: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 65535 + description: + Set USB Device ID of the hub. + + language-id: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 65535 + description: + Set USB Language ID. + + manufacturer: + $ref: /schemas/types.yaml#/definitions/string + description: + Set USB Manufacturer string (max. 62 characters long). + + product: + $ref: /schemas/types.yaml#/definitions/string + description: + Set USB Product string (max. 62 characters long). + + bus-powered: + $ref: /schemas/types.yaml#/definitions/flag + description: + Selects bus powered operation. + + self-powered: + $ref: /schemas/types.yaml#/definitions/flag + description: + Selects self powered operation (default). + + disable-hi-speed: + $ref: /schemas/types.yaml#/definitions/flag + description: + Disable USB Hi-Speed support. + + multi-tt: + $ref: /schemas/types.yaml#/definitions/flag + description: + Selects multi-transaction-translator (default). + + single-tt: + $ref: /schemas/types.yaml#/definitions/flag + description: + Selects single-transaction-translator. + + disable-eop: + $ref: /schemas/types.yaml#/definitions/flag + description: + Disable End of Packet generation in full-speed mode. + + ganged-sensing: + $ref: /schemas/types.yaml#/definitions/flag + description: + Select ganged over-current sense type in self-powered mode. + + individual-sensing: + $ref: /schemas/types.yaml#/definitions/flag + description: + Select individual over-current sense type in self-powered mode (default). + + ganged-port-switching: + $ref: /schemas/types.yaml#/definitions/flag + description: + Select ganged port power switching mode. + + individual-port-switching: + $ref: /schemas/types.yaml#/definitions/flag + description: + Select individual port power switching mode (default). + + dynamic-power-switching: + $ref: /schemas/types.yaml#/definitions/flag + description: + Enable auto-switching from self- to bus-powered operation if the local + power source is removed or unavailable. + + oc-delay-ns: + enum: + - 50 + - 100 + - 200 + - 400 + default: 200 + description: + Delay time (in nanoseconds) for filtering the over-current sense inputs. + If an invalid value is given, the default is used instead. + + compound-device: + $ref: /schemas/types.yaml#/definitions/flag + description: + Indicate the hub is part of a compound device. + + port-mapping-mode: + $ref: /schemas/types.yaml#/definitions/flag + description: + Enable port mapping mode. + + non-removable-ports: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Should specify the ports which have a non-removable device connected. + + sp-disabled-ports: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Specifies the ports which will be self-power disabled. + + bp-disabled-ports: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Specifies the ports which will be bus-power disabled. + + power-on-time-ms: + $ref: /schemas/types.yaml#/definitions/uint32 + default: 100 + minimum: 0 + maximum: 510 + description: + Specifies the time (in milliseconds) it takes from the time the host + initiates the power-on sequence to a port until the port has adequate + power. + + ocs-min-width-ms: + default: 5 + minimum: 0 + maximum: 5 + description: + Minimum OCS pulse width (in milliseconds) required to detect an OCS + event. + + hub-controller-port: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Hub port where the internal hub controller shall be connected. Usually + <number of ports>+1. + +additionalProperties: false + +required: + - compatible + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + usb4916i@2d { + compatible = "microchip,usb4916i"; + reg = <0x2d>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb_hub>; + /* usb49xx.c already assumes low-active, don't negate twice */ + reset-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>; + //skip-config; + //self-powered; /* power on default */ + //individual-sensing; /* power on default */ + //multi-tt; /* power on default */ + //disable-eop; /* power on default */ + //individual-port-switching; /* power on default */ + //oc-delay-ns = <200>; /* power on default */ + power-on-time-ms = <4>; /* T_ON,max = 4 ms for NCP380 */ + ocs-min-width-ms = <0>; /* MIC2005 only outputs 2us FAULT pulses */ + manufacturer = "Foo"; + product = "Foo-Bar"; + /* port 5 is connected to an internal SD-Card reader */ + non-removable-ports = <5>; + }; + }; + +... -- Christian Eggers Embedded software developer Arnold & Richter Cine Technik GmbH & Co. Betriebs KG Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRA 57918 Persoenlich haftender Gesellschafter: Arnold & Richter Cine Technik GmbH Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRB 54477 Geschaeftsfuehrer: Dr. Michael Neuhaeuser; Stephan Schenk; Walter Trauninger; Markus Zeiler
