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-Cirrus Logic Madera class audio codecs Multi-Functional Device
-
-These devices are audio SoCs with extensive digital capabilities and a range
-of analogue I/O.
-
-See also the child driver bindings in:
-bindings/pinctrl/cirrus,madera-pinctrl.txt
-bindings/regulator/arizona-regulator.txt
-bindings/sound/madera.txt
-
-Required properties:
-
- - compatible : One of the following chip-specific strings:
- "cirrus,cs47l15"
- "cirrus,cs47l35"
- "cirrus,cs47l85"
- "cirrus,cs47l90"
- "cirrus,cs47l91"
- "cirrus,cs42l92"
- "cirrus,cs47l92"
- "cirrus,cs47l93"
- "cirrus,wm1840"
-
- - reg : I2C slave address when connected using I2C, chip select number when
- using SPI.
-
- - DCVDD-supply : Power supply for the device as defined in
- bindings/regulator/regulator.txt
- Mandatory on CS47L15, CS47L35, CS47L90, CS47L91, CS42L92, CS47L92, CS47L93
- Optional on CS47L85, WM1840
-
- - AVDD-supply, DBVDD1-supply, DBVDD2-supply, CPVDD1-supply, CPVDD2-supply :
- Power supplies for the device
-
- - DBVDD3-supply, DBVDD4-supply : Power supplies for the device
- (CS47L85, CS47L90, CS47L91, WM1840)
-
- - SPKVDDL-supply, SPKVDDR-supply : Power supplies for the device
- (CS47L85, WM1840)
-
- - SPKVDD-supply : Power supply for the device
- (CS47L15, CS47L35)
-
- - interrupt-controller : Indicates that this device is an interrupt controller
-
- - #interrupt-cells: the number of cells to describe an IRQ, must be 2.
- The first cell is the IRQ number.
- The second cell is the flags, encoded as the trigger masks from
- bindings/interrupt-controller/interrupts.txt
-
- - gpio-controller : Indicates this device is a GPIO controller.
-
- - #gpio-cells : Must be 2. The first cell is the pin number. The second cell
- is reserved for future use and must be zero
-
- - interrupt-parent : The parent interrupt controller.
-
- - interrupts : The interrupt line the /IRQ signal for the device is
- connected to.
-
-Optional properties:
-
- - MICVDD-supply : Power supply, only need to be specified if
- powered externally
-
- - reset-gpios : One entry specifying the GPIO controlling /RESET.
- As defined in bindings/gpio.txt.
- Although optional, it is strongly recommended to use a hardware reset
-
- - clocks: Should reference the clocks supplied on MCLK1, MCLK2 and MCLK3
- - clock-names: May contain up to three strings:
- "mclk1" for the clock supplied on MCLK1, recommended to be a high
- quality audio reference clock
- "mclk2" for the clock supplied on MCLK2, required to be an always on
- 32k clock
- "mclk3" for the clock supplied on MCLK3
-
- - MICBIASx : Initial data for the MICBIAS regulators, as covered in
- Documentation/devicetree/bindings/regulator/regulator.txt.
- One for each MICBIAS generator (MICBIAS1, MICBIAS2, ...)
- (all codecs)
-
- One for each output pin (MICBIAS1A, MIBCIAS1B, MICBIAS2A, ...)
- (all except CS47L85, WM1840)
-
- The following following additional property is supported for the generator
- nodes:
- - cirrus,ext-cap : Set to 1 if the MICBIAS has external decoupling
- capacitors attached.
-
-Optional child nodes:
- micvdd : Node containing initialization data for the micvdd regulator
- See bindings/regulator/arizona-regulator.txt
-
- ldo1 : Node containing initialization data for the LDO1 regulator
- See bindings/regulator/arizona-regulator.txt
- (cs47l85, wm1840)
-
-Example:
-
-cs47l85@0 {
- compatible = "cirrus,cs47l85";
- reg = <0>;
-
- reset-gpios = <&gpio 0>;
-
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupts = <&host_irq1>;
- interrupt-parent = <&gic>;
-
- gpio-controller;
- #gpio-cells = <2>;
-};