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-WM1811/WM8994/WM8958 audio CODEC
-
-These devices support both I2C and SPI (configured with pin strapping
-on the board).
-
-Required properties:
-
- - compatible : One of "wlf,wm1811", "wlf,wm8994" or "wlf,wm8958".
-
- - reg : the I2C address of the device for I2C, the chip select
- number for SPI.
-
- - gpio-controller : Indicates this device is a GPIO controller.
- - #gpio-cells : Must be 2. The first cell is the pin number and the
- second cell is used to specify optional parameters (currently unused).
-
- - AVDD2-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply, CPVDD-supply,
- SPKVDD1-supply, SPKVDD2-supply : power supplies for the device, as covered
- in Documentation/devicetree/bindings/regulator/regulator.txt
-
-Optional properties:
-
- - interrupts : The interrupt line the IRQ signal for the device is
- connected to. This is optional, if it is not connected then none
- of the interrupt related properties should be specified.
- - interrupt-controller : These devices contain interrupt controllers
- and may provide interrupt services to other devices if they have an
- interrupt line connected.
- - #interrupt-cells: the number of cells to describe an IRQ, this should be 2.
- The first cell is the IRQ number.
- The second cell is the flags, encoded as the trigger masks from
- Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
-
- - clocks : A list of up to two phandle and clock specifier pairs
- - clock-names : A list of clock names sorted in the same order as clocks.
- Valid clock names are "MCLK1" and "MCLK2".
-
- - wlf,gpio-cfg : A list of GPIO configuration register values. If absent,
- no configuration of these registers is performed. If any value is
- over 0xffff then the register will be left as default. If present 11
- values must be supplied.
-
- - wlf,micbias-cfg : Two MICBIAS register values for WM1811 or
- WM8958. If absent the register defaults will be used.
-
- - wlf,ldo1ena : GPIO specifier for control of LDO1ENA input to device.
- - wlf,ldo2ena : GPIO specifier for control of LDO2ENA input to device.
-
- - wlf,lineout1-se : If present LINEOUT1 is in single ended mode.
- - wlf,lineout2-se : If present LINEOUT2 is in single ended mode.
-
- - wlf,lineout1-feedback : If present LINEOUT1 has common mode feedback
- connected.
- - wlf,lineout2-feedback : If present LINEOUT2 has common mode feedback
- connected.
-
- - wlf,ldoena-always-driven : If present LDOENA is always driven.
-
- - wlf,spkmode-pu : If present enable the internal pull-up resistor on
- the SPKMODE pin.
-
- - wlf,csnaddr-pd : If present enable the internal pull-down resistor on
- the CS/ADDR pin.
-
-Example:
-
-wm8994: codec@1a {
- compatible = "wlf,wm8994";
- reg = <0x1a>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- lineout1-se;
-
- AVDD2-supply = <&regulator>;
- CPVDD-supply = <&regulator>;
- DBVDD1-supply = <&regulator>;
- DBVDD2-supply = <&regulator>;
- DBVDD3-supply = <&regulator>;
- SPKVDD1-supply = <&regulator>;
- SPKVDD2-supply = <&regulator>;
-};