projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| 51669f89 | 33 | Documentation/devicetree/bindings/interrupt-controller/interrupts.txt |
| 20fb2772 | 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 | }; |