1Wolfson Arizona class audio SoCs 2 3These devices are audio SoCs with extensive digital capabilites and a range 4of analogue I/O. 5 6Required properties: 7 8 - compatible : One of the following chip-specific strings: 9 "wlf,wm5102" 10 "wlf,wm5110" 11 "wlf,wm8280" 12 "wlf,wm8997" 13 "wlf,wm8998" 14 "wlf,wm1814" 15 16 - reg : I2C slave address when connected using I2C, chip select number when 17 using SPI. 18 19 - interrupts : The interrupt line the /IRQ signal for the device is 20 connected to. 21 - interrupt-controller : Arizona class devices contain interrupt controllers 22 and may provide interrupt services to other devices. 23 - interrupt-parent : The parent interrupt controller. 24 - #interrupt-cells: the number of cells to describe an IRQ, this should be 2. 25 The first cell is the IRQ number. 26 The second cell is the flags, encoded as the trigger masks from 27 Documentation/devicetree/bindings/interrupts.txt 28 29 - gpio-controller : Indicates this device is a GPIO controller. 30 - #gpio-cells : Must be 2. The first cell is the pin number and the 31 second cell is used to specify optional parameters (currently unused). 32 33 - AVDD-supply, DBVDD1-supply, CPVDD-supply : Power supplies for the device, 34 as covered in Documentation/devicetree/bindings/regulator/regulator.txt 35 36 - DBVDD2-supply, DBVDD3-supply : Additional databus power supplies (wm5102, 37 wm5110, wm8280, wm8998, wm1814) 38 39 - SPKVDDL-supply, SPKVDDR-supply : Speaker driver power supplies (wm5102, 40 wm5110, wm8280, wm8998, wm1814) 41 42 - SPKVDD-supply : Speaker driver power supply (wm8997) 43 44Optional properties: 45 46 - wlf,reset : GPIO specifier for the GPIO controlling /RESET 47 48 - wlf,gpio-defaults : A list of GPIO configuration register values. Defines 49 for the appropriate values can found in <dt-bindings/mfd/arizona.txt>. If 50 absent, no configuration of these registers is performed. If any entry has 51 a value that is out of range for a 16 bit register then the chip default 52 will be used. If present exactly five values must be specified. 53 54 - wlf,inmode : A list of INn_MODE register values, where n is the number 55 of input signals. Valid values are 0 (Differential), 1 (Single-ended) and 56 2 (Digital Microphone). If absent, INn_MODE registers set to 0 by default. 57 If present, values must be specified less than or equal to the number of 58 input signals. If values less than the number of input signals, elements 59 that have not been specified are set to 0 by default. Entries are: 60 <IN1, IN2, IN3, IN4> (wm5102, wm5110, wm8280, wm8997) 61 <IN1A, IN2A, IN1B, IN2B> (wm8998, wm1814) 62 63 - wlf,dmic-ref : DMIC reference voltage source for each input, can be 64 selected from either MICVDD or one of the MICBIAS's, defines 65 (ARIZONA_DMIC_xxxx) are provided in <dt-bindings/mfd/arizona.txt>. If 66 present, the number of values should be less than or equal to the 67 number of inputs, unspecified inputs will use the chip default. 68 69 - DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if 70 they are being externally supplied. As covered in 71 Documentation/devicetree/bindings/regulator/regulator.txt 72 73Also see child specific device properties: 74 Regulator - ../regulator/arizona-regulator.txt 75 Extcon - ../extcon/extcon-arizona.txt 76 77Example: 78 79codec: wm5102@1a { 80 compatible = "wlf,wm5102"; 81 reg = <0x1a>; 82 interrupts = <347>; 83 interrupt-controller; 84 #interrupt-cells = <2>; 85 interrupt-parent = <&gic>; 86 87 gpio-controller; 88 #gpio-cells = <2>; 89 90 wlf,gpio-defaults = < 91 ARIZONA_GP_FN_TXLRCLK 92 ARIZONA_GP_DEFAULT 93 ARIZONA_GP_DEFAULT 94 ARIZONA_GP_DEFAULT 95 ARIZONA_GP_DEFAULT 96 >; 97}; 98