1Binding for IDT VersaClock 5,6 programmable i2c clock generators. 2 3The IDT VersaClock 5 and VersaClock 6 are programmable i2c clock 4generators providing from 3 to 12 output clocks. 5 6==I2C device node== 7 8Required properties: 9- compatible: shall be one of 10 "idt,5p49v5923" 11 "idt,5p49v5925" 12 "idt,5p49v5933" 13 "idt,5p49v5935" 14 "idt,5p49v6901" 15 "idt,5p49v6965" 16- reg: i2c device address, shall be 0x68 or 0x6a. 17- #clock-cells: from common clock binding; shall be set to 1. 18- clocks: from common clock binding; list of parent clock handles, 19 - 5p49v5923 and 20 5p49v5925 and 21 5p49v6901: (required) either or both of XTAL or CLKIN 22 reference clock. 23 - 5p49v5933 and 24 - 5p49v5935: (optional) property not present (internal 25 Xtal used) or CLKIN reference 26 clock. 27- clock-names: from common clock binding; clock input names, can be 28 - 5p49v5923 and 29 5p49v5925 and 30 5p49v6901: (required) either or both of "xin", "clkin". 31 - 5p49v5933 and 32 - 5p49v5935: (optional) property not present or "clkin". 33 34==Mapping between clock specifier and physical pins== 35 36When referencing the provided clock in the DT using phandle and 37clock specifier, the following mapping applies: 38 395P49V5923: 40 0 -- OUT0_SEL_I2CB 41 1 -- OUT1 42 2 -- OUT2 43 445P49V5933: 45 0 -- OUT0_SEL_I2CB 46 1 -- OUT1 47 2 -- OUT4 48 495P49V5925 and 505P49V5935: 51 0 -- OUT0_SEL_I2CB 52 1 -- OUT1 53 2 -- OUT2 54 3 -- OUT3 55 4 -- OUT4 56 575P49V6901: 58 0 -- OUT0_SEL_I2CB 59 1 -- OUT1 60 2 -- OUT2 61 3 -- OUT3 62 4 -- OUT4 63 64==Example== 65 66/* 25MHz reference crystal */ 67ref25: ref25m { 68 compatible = "fixed-clock"; 69 #clock-cells = <0>; 70 clock-frequency = <25000000>; 71}; 72 73i2c-master-node { 74 75 /* IDT 5P49V5923 i2c clock generator */ 76 vc5: clock-generator@6a { 77 compatible = "idt,5p49v5923"; 78 reg = <0x6a>; 79 #clock-cells = <1>; 80 81 /* Connect XIN input to 25MHz reference */ 82 clocks = <&ref25m>; 83 clock-names = "xin"; 84 }; 85}; 86 87/* Consumer referencing the 5P49V5923 pin OUT1 */ 88consumer { 89 ... 90 clocks = <&vc5 1>; 91 ... 92} 93