| SMSC USB3503 High-Speed Hub Controller | |
| Required properties: | |
| - compatible: Should be "smsc,usb3503" or "smsc,usb3503a". | |
| Optional properties: | |
| - reg: Specifies the i2c slave address, it is required and should be 0x08 | |
| if I2C is used. | |
| - connect-gpios: Should specify GPIO for connect. | |
| - disabled-ports: Should specify the ports unused. | |
| '1' or '2' or '3' are available for this property to describe the port | |
| number. 1~3 property values are possible to be described. | |
| Do not describe this property if all ports have to be enabled. | |
| - intn-gpios: Should specify GPIO for interrupt. | |
| - reset-gpios: Should specify GPIO for reset. | |
| - initial-mode: Should specify initial mode. | |
| (1 for HUB mode, 2 for STANDBY mode) | |
| - refclk: Clock used for driving REFCLK signal (optional, if not provided | |
| the driver assumes that clock signal is always available, its | |
| rate is specified by REF_SEL pins and a value from the primary | |
| reference clock frequencies table is used). Use clocks and | |
| clock-names in order to assign it | |
| - refclk-frequency: Frequency of the REFCLK signal as defined by REF_SEL | |
| pins (optional, if not provided, driver will not set rate of the | |
| REFCLK signal and assume that a value from the primary reference | |
| clock frequencies table is used) | |
| Examples: | |
| usb3503@08 { | |
| compatible = "smsc,usb3503"; | |
| reg = <0x08>; | |
| connect-gpios = <&gpx3 0 1>; | |
| disabled-ports = <2 3>; | |
| intn-gpios = <&gpx3 4 1>; | |
| reset-gpios = <&gpx3 5 1>; | |
| initial-mode = <1>; | |
| clocks = <&clks 80>; | |
| clock-names = "refclk"; | |
| }; |