1* Hisilicon Hi6220 Clock Controller 2 3Clock control registers reside in different Hi6220 system controllers, 4please refer the following document to know more about the binding rules 5for these system controllers: 6 7Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt 8 9Required Properties: 10 11- compatible: the compatible should be one of the following strings to 12 indicate the clock controller functionality. 13 14 - "hisilicon,hi6220-aoctrl" 15 - "hisilicon,hi6220-sysctrl" 16 - "hisilicon,hi6220-mediactrl" 17 - "hisilicon,hi6220-pmctrl" 18 19- reg: physical base address of the controller and length of memory mapped 20 region. 21 22- #clock-cells: should be 1. 23 24For example: 25 sys_ctrl: sys_ctrl@f7030000 { 26 compatible = "hisilicon,hi6220-sysctrl", "syscon"; 27 reg = <0x0 0xf7030000 0x0 0x2000>; 28 #clock-cells = <1>; 29 }; 30 31Each clock is assigned an identifier and client nodes use this identifier 32to specify the clock which they consume. 33 34All these identifier could be found in <dt-bindings/clock/hi6220-clock.h>. 35