mirror of https://gitee.com/openkylin/linux.git
63 lines
2.0 KiB
Plaintext
63 lines
2.0 KiB
Plaintext
Wolfson Arizona class audio SoCs
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These devices are audio SoCs with extensive digital capabilites 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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"wlf,wm5102"
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"wlf,wm5110"
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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/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 (currently unused).
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- AVDD1-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply, CPVDD-supply,
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SPKVDDL-supply, SPKVDDR-supply : power supplies for the device, as covered
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in Documentation/devicetree/bindings/regulator/regulator.txt
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Optional properties:
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- wlf,reset : GPIO specifier for the GPIO controlling /RESET
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- wlf,ldoena : GPIO specifier for the GPIO controlling LDOENA
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- wlf,gpio-defaults : A list of GPIO configuration register values. If
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absent, no configuration of these registers is performed. If any
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entry has a value that is out of range for a 16 bit register then
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the chip default will be used. If present exactly five values must
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be specified.
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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-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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0x00000000, /* AIF1TXLRCLK */
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0xffffffff,
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0xffffffff,
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0xffffffff,
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0xffffffff,
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>;
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};
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