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Cirrus Logic/Wolfson Microelectronics Arizona class audio SoCs
These devices are audio SoCs with extensive digital capabilities and a range
of analogue I/O.
Required properties:
- compatible : One of the following chip-specific strings:
"cirrus,cs47l24"
"wlf,wm5102"
"wlf,wm5110"
"wlf,wm8280"
"wlf,wm8997"
"wlf,wm8998"
"wlf,wm1814"
"wlf,wm1831"
- reg : I2C slave address when connected using I2C, chip select number when
using SPI.
- interrupts : The interrupt line the /IRQ signal for the device is
connected to.
- interrupt-controller : Arizona class devices contain interrupt controllers
and may provide interrupt services to other devices.
- interrupt-parent : The parent interrupt controller.
- #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
- 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).
- AVDD-supply, DBVDD1-supply, CPVDD-supply : Power supplies for the device,
as covered in Documentation/devicetree/bindings/regulator/regulator.txt
- DBVDD2-supply, DBVDD3-supply : Additional databus power supplies (wm5102,
wm5110, wm8280, wm8998, wm1814)
- SPKVDDL-supply, SPKVDDR-supply : Speaker driver power supplies (wm5102,
wm5110, wm8280, wm8998, wm1814)
- SPKVDD-supply : Speaker driver power supply (wm8997)
- DCVDD-supply : Main power supply (cs47l24, wm1831)
- MICVDD-supply : Microphone power supply (cs47l24, wm1831)
Optional properties:
- wlf,reset : GPIO specifier for the GPIO controlling /RESET
- clocks: Should reference the clocks supplied on MCLK1 and MCLK2
- clock-names: Should contains two strings:
"mclk1" for the clock supplied on MCLK1, recommended to be a high
quality audio reference clock
"mclk2" for the clock supplied on MCLK2, recommended to be an always on
32k clock
- wlf,gpio-defaults : A list of GPIO configuration register values. Defines
for the appropriate values can found in <dt-bindings/mfd/arizona.txt>. If
absent, no configuration of these registers is performed. If any entry has
a value that is out of range for a 16 bit register then the chip default
will be used. If present exactly five values must be specified.
- wlf,inmode : A list of INn_MODE register values, where n is the number
of input signals. Valid values are 0 (Differential), 1 (Single-ended) and
2 (Digital Microphone). If absent, INn_MODE registers set to 0 by default.
If present, values must be specified less than or equal to the number of
input signals. If values less than the number of input signals, elements
that have not been specified are set to 0 by default. Entries are:
<IN1, IN2, IN3, IN4> (wm5102, wm5110, wm8280, wm8997)
<IN1A, IN2A, IN1B, IN2B> (wm8998, wm1814)
- wlf,out-mono : A list of boolean values indicating whether each output is
mono or stereo. Position within the list indicates the output affected
(eg. First entry in the list corresponds to output 1). A non-zero value
indicates a mono output. If present, the number of values should be less
than or equal to the number of outputs, if less values are supplied the
additional outputs will be treated as stereo.
- wlf,dmic-ref : DMIC reference voltage source for each input, can be
selected from either MICVDD or one of the MICBIAS's, defines
(ARIZONA_DMIC_xxxx) are provided in <dt-bindings/mfd/arizona.txt>. If
present, the number of values should be less than or equal to the
number of inputs, unspecified inputs will use the chip default.
- wlf,max-channels-clocked : The maximum number of channels to be clocked on
each AIF, useful for I2S systems with multiple data lines being mastered.
Specify one cell for each AIF to be configured, specify zero for AIFs that
should be handled normally.
If present, number of cells must be less than or equal to the number of
AIFs. If less than the number of AIFs, for cells that have not been
specified the corresponding AIFs will be treated as default setting.
- wlf,spk-fmt : PDM speaker data format, must contain 2 cells (OUT5 and OUT6).
See the datasheet for values.
The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997,
wm8998, wm1814)
- wlf,spk-mute : PDM speaker mute setting, must contain 2 cells (OUT5 and OUT6).
See the datasheet for values.
The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997,
wm8998, wm1814)
- DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if
they are being externally supplied. As covered in
Documentation/devicetree/bindings/regulator/regulator.txt
(wm5102, wm5110, wm8280, wm8997, wm8998, wm1814)
Also see child specific device properties:
Regulator - ../regulator/arizona-regulator.txt
Extcon - ../extcon/extcon-arizona.txt
Example:
codec: wm5102@1a {
compatible = "wlf,wm5102";
reg = <0x1a>;
interrupts = <347>;
interrupt-controller;
#interrupt-cells = <2>;
interrupt-parent = <&gic>;
gpio-controller;
#gpio-cells = <2>;
wlf,gpio-defaults = <
ARIZONA_GP_FN_TXLRCLK
ARIZONA_GP_DEFAULT
ARIZONA_GP_DEFAULT
ARIZONA_GP_DEFAULT
ARIZONA_GP_DEFAULT
>;
};
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