Commit | Line | Data |
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cf763c2e MB |
1 | WM1811/WM8994/WM8958 audio CODEC |
2 | ||
3 | These devices support both I2C and SPI (configured with pin strapping | |
4 | on the board). | |
5 | ||
6 | Required properties: | |
7 | ||
20fb2772 | 8 | - compatible : One of "wlf,wm1811", "wlf,wm8994" or "wlf,wm8958". |
cf763c2e MB |
9 | |
10 | - reg : the I2C address of the device for I2C, the chip select | |
11 | number for SPI. | |
12 | ||
20fb2772 MB |
13 | - gpio-controller : Indicates this device is a GPIO controller. |
14 | - #gpio-cells : Must be 2. The first cell is the pin number and the | |
15 | second cell is used to specify optional parameters (currently unused). | |
16 | ||
17 | - AVDD2-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply, CPVDD-supply, | |
18 | SPKVDD1-supply, SPKVDD2-supply : power supplies for the device, as covered | |
19 | in Documentation/devicetree/bindings/regulator/regulator.txt | |
20 | ||
21 | Optional properties: | |
22 | ||
23 | - interrupts : The interrupt line the IRQ signal for the device is | |
24 | connected to. This is optional, if it is not connected then none | |
25 | of the interrupt related properties should be specified. | |
26 | - interrupt-controller : These devices contain interrupt controllers | |
27 | and may provide interrupt services to other devices if they have an | |
28 | interrupt line connected. | |
29 | - interrupt-parent : The parent interrupt controller. | |
30 | - #interrupt-cells: the number of cells to describe an IRQ, this should be 2. | |
31 | The first cell is the IRQ number. | |
32 | The second cell is the flags, encoded as the trigger masks from | |
33 | Documentation/devicetree/bindings/interrupts.txt | |
34 | ||
087ee093 MB |
35 | - clocks : A list of up to two phandle and clock specifier pairs |
36 | - clock-names : A list of clock names sorted in the same order as clocks. | |
37 | Valid clock names are "MCLK1" and "MCLK2". | |
38 | ||
20fb2772 MB |
39 | - wlf,gpio-cfg : A list of GPIO configuration register values. If absent, |
40 | no configuration of these registers is performed. If any value is | |
41 | over 0xffff then the register will be left as default. If present 11 | |
42 | values must be supplied. | |
43 | ||
44 | - wlf,micbias-cfg : Two MICBIAS register values for WM1811 or | |
45 | WM8958. If absent the register defaults will be used. | |
46 | ||
47 | - wlf,ldo1ena : GPIO specifier for control of LDO1ENA input to device. | |
48 | - wlf,ldo2ena : GPIO specifier for control of LDO2ENA input to device. | |
49 | ||
50 | - wlf,lineout1-se : If present LINEOUT1 is in single ended mode. | |
51 | - wlf,lineout2-se : If present LINEOUT2 is in single ended mode. | |
52 | ||
53 | - wlf,lineout1-feedback : If present LINEOUT1 has common mode feedback | |
54 | connected. | |
55 | - wlf,lineout2-feedback : If present LINEOUT2 has common mode feedback | |
56 | connected. | |
57 | ||
58 | - wlf,ldoena-always-driven : If present LDOENA is always driven. | |
59 | ||
cf763c2e MB |
60 | Example: |
61 | ||
62 | codec: wm8994@1a { | |
63 | compatible = "wlf,wm8994"; | |
64 | reg = <0x1a>; | |
20fb2772 MB |
65 | |
66 | gpio-controller; | |
67 | #gpio-cells = <2>; | |
68 | ||
69 | lineout1-se; | |
70 | ||
71 | AVDD2-supply = <®ulator>; | |
72 | CPVDD-supply = <®ulator>; | |
73 | DBVDD1-supply = <®ulator>; | |
74 | DBVDD2-supply = <®ulator>; | |
75 | DBVDD3-supply = <®ulator>; | |
76 | SPKVDD1-supply = <®ulator>; | |
77 | SPKVDD2-supply = <®ulator>; | |
cf763c2e | 78 | }; |