1SMSC USB3503 High-Speed Hub Controller 2 3Required properties: 4- compatible: Should be "smsc,usb3503" or "smsc,usb3503a". 5 6Optional properties: 7- reg: Specifies the i2c slave address, it is required and should be 0x08 8 if I2C is used. 9- connect-gpios: Should specify GPIO for connect. 10- disabled-ports: Should specify the ports unused. 11 '1' or '2' or '3' are available for this property to describe the port 12 number. 1~3 property values are possible to be described. 13 Do not describe this property if all ports have to be enabled. 14- intn-gpios: Should specify GPIO for interrupt. 15- reset-gpios: Should specify GPIO for reset. 16- initial-mode: Should specify initial mode. 17 (1 for HUB mode, 2 for STANDBY mode) 18- refclk: Clock used for driving REFCLK signal (optional, if not provided 19 the driver assumes that clock signal is always available, its 20 rate is specified by REF_SEL pins and a value from the primary 21 reference clock frequencies table is used). Use clocks and 22 clock-names in order to assign it 23- refclk-frequency: Frequency of the REFCLK signal as defined by REF_SEL 24 pins (optional, if not provided, driver will not set rate of the 25 REFCLK signal and assume that a value from the primary reference 26 clock frequencies table is used) 27 28Examples: 29 usb3503@8 { 30 compatible = "smsc,usb3503"; 31 reg = <0x08>; 32 connect-gpios = <&gpx3 0 1>; 33 disabled-ports = <2 3>; 34 intn-gpios = <&gpx3 4 1>; 35 reset-gpios = <&gpx3 5 1>; 36 initial-mode = <1>; 37 clocks = <&clks 80>; 38 clock-names = "refclk"; 39 }; 40