99 lines
3.3 KiB
Plaintext
99 lines
3.3 KiB
Plaintext
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Cirrus Logic/Wolfson Microelectronics Arizona class audio SoCs
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These devices are audio SoCs with extensive digital capabilities and a range
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of analogue I/O.
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Required properties:
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- compatible : One of the following chip-specific strings:
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"cirrus,cs47l24"
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"wlf,wm5102"
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"wlf,wm5110"
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"wlf,wm8280"
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"wlf,wm8997"
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"wlf,wm8998"
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"wlf,wm1814"
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"wlf,wm1831"
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- reg : I2C slave address when connected using I2C, chip select number when
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using SPI.
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- interrupts : The interrupt line the /IRQ signal for the device is
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connected to.
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- interrupt-controller : Arizona class devices contain interrupt controllers
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and may provide interrupt services to other devices.
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- interrupt-parent : The parent interrupt controller.
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- #interrupt-cells: the number of cells to describe an IRQ, this should be 2.
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The first cell is the IRQ number.
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The second cell is the flags, encoded as the trigger masks from
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Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
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- gpio-controller : Indicates this device is a GPIO controller.
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- #gpio-cells : Must be 2. The first cell is the pin number and the
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second cell is used to specify optional parameters, see ../gpio/gpio.txt
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for details.
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- AVDD-supply, DBVDD1-supply, CPVDD-supply : Power supplies for the device,
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as covered in Documentation/devicetree/bindings/regulator/regulator.txt
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- DBVDD2-supply, DBVDD3-supply : Additional databus power supplies (wm5102,
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wm5110, wm8280, wm8998, wm1814)
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- SPKVDDL-supply, SPKVDDR-supply : Speaker driver power supplies (wm5102,
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wm5110, wm8280, wm8998, wm1814)
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- SPKVDD-supply : Speaker driver power supply (wm8997)
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- DCVDD-supply : Main power supply (cs47l24, wm1831)
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- MICVDD-supply : Microphone power supply (cs47l24, wm1831)
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Optional properties:
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- wlf,reset : GPIO specifier for the GPIO controlling /RESET
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- clocks: Should reference the clocks supplied on MCLK1 and MCLK2
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- clock-names: Should contains two strings:
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"mclk1" for the clock supplied on MCLK1, recommended to be a high
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quality audio reference clock
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"mclk2" for the clock supplied on MCLK2, recommended to be an always on
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32k clock
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- wlf,gpio-defaults : A list of GPIO configuration register values. Defines
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for the appropriate values can found in <dt-bindings/mfd/arizona.txt>. If
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absent, no configuration of these registers is performed. If any entry has
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a value that is out of range for a 16 bit register then the chip default
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will be used. If present exactly five values must be specified.
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- DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if
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they are being externally supplied. As covered in
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Documentation/devicetree/bindings/regulator/regulator.txt
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(wm5102, wm5110, wm8280, wm8997, wm8998, wm1814)
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Also see child specific device properties:
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Regulator - ../regulator/arizona-regulator.txt
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Extcon - ../extcon/extcon-arizona.txt
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Sound - ../sound/arizona.txt
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Example:
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codec: wm5102@1a {
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compatible = "wlf,wm5102";
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reg = <0x1a>;
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interrupts = <347>;
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interrupt-controller;
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#interrupt-cells = <2>;
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interrupt-parent = <&gic>;
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gpio-controller;
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#gpio-cells = <2>;
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wlf,gpio-defaults = <
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ARIZONA_GP_FN_TXLRCLK
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ARIZONA_GP_DEFAULT
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ARIZONA_GP_DEFAULT
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ARIZONA_GP_DEFAULT
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ARIZONA_GP_DEFAULT
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>;
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};
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