3 This device supports I2C only.
7 - compatible : "wlf,wm8903"
9 - reg : the I2C address of the device.
11 - gpio-controller : Indicates this device is a GPIO controller.
13 - #gpio-cells : Should be two. The first cell is the pin number and the
14 second cell is used to specify optional parameters (currently unused).
18 - interrupts : The interrupt line the codec is connected to.
20 - micdet-cfg : Default register value for R6 (Mic Bias). If absent, the
23 - micdet-delay : The debounce delay for microphone detection in mS. If
24 absent, the default is 100.
26 - gpio-cfg : A list of GPIO configuration register values. The list must
27 be 5 entries long. If absent, no configuration of these registers is
28 performed. If any entry has the value 0xffffffff, that GPIO's
29 configuration will not be modified.
31 - AVDD-supply : Analog power supply regulator on the AVDD pin.
33 - CPVDD-supply : Charge pump supply regulator on the CPVDD pin.
35 - DBVDD-supply : Digital buffer supply regulator for the DBVDD pin.
37 - DCVDD-supply : Digital core supply regulator for the DCVDD pin.
39 Pins on the device (for linking into audio routes):
61 compatible = "wlf,wm8903";
65 AVDD-supply = <&fooreg_a>;
66 CPVDD-supply = <&fooreg_b>;
67 DBVDD-supply = <&fooreg_c>;
68 DCVDC-supply = <&fooreg_d>;
76 0x0600 /* DMIC_LR, output */
77 0x0680 /* DMIC_DAT, input */
78 0x0000 /* GPIO, output, low */
79 0x0200 /* Interrupt, output */
80 0x01a0 /* BCLK, input, active high */