cs35l34.txt

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    1 CS35L34 Speaker Amplifier
    2 
    3 Required properties:
    4 
    5   - compatible : "cirrus,cs35l34"
    6 
    7   - reg : the I2C address of the device for I2C.
    8 
    9   - VA-supply, VP-supply : power supplies for the device,
   10     as covered in
   11     Documentation/devicetree/bindings/regulator/regulator.txt.
   12 
   13   - cirrus,boost-vtge-millivolt : Boost Voltage Value.  Configures the boost
   14     converter's output voltage in mV. The range is from VP to 8V with
   15     increments of 100mV.
   16 
   17   - cirrus,boost-nanohenry: Inductor value for boost converter. The value is
   18     in nH and they can be values of 1000nH, 1100nH, 1200nH, 1500nH, and 2200nH.
   19 
   20 Optional properties:
   21 
   22   - reset-gpios: GPIO used to reset the amplifier.
   23 
   24   - interrupts : IRQ line info CS35L34.
   25     (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
   26     for further information relating to interrupt properties)
   27 
   28   - cirrus,boost-peak-milliamp : Boost converter peak current limit in mA. The
   29     range starts at 1200mA and goes to a maximum of 3840mA with increments of
   30     80mA. The default value is 2480mA.
   31 
   32   - cirrus,i2s-sdinloc : ADSP SDIN I2S channel location. Indicates whether the
   33     received mono data is in the left or right portion of the I2S frame
   34     according to the AD0 pin or directly via this configuration.
   35     0x0 (Default) = Selected by AD0 input (if AD0 = LOW, use left channel),
   36     0x2 = Left,
   37     0x1 = Selected by the inversion of the AD0 input (if AD0 = LOW, use right
   38     channel),
   39     0x3 = Right.
   40 
   41   - cirrus,gain-zc-disable: Boolean property. If set, the gain change will take
   42     effect without waiting for a zero cross.
   43 
   44   - cirrus,tdm-rising-edge: Boolean property. If set, data is on the rising edge of
   45     SCLK. Otherwise, data is on the falling edge of SCLK.
   46 
   47 
   48 Example:
   49 
   50 cs35l34: cs35l34@40 {
   51         compatible = "cirrus,cs35l34";
   52         reg = <0x40>;
   53 
   54         interrupt-parent = <&gpio8>;
   55         interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
   56 
   57         reset-gpios = <&gpio 10 0>;
   58 
   59         cirrus,boost-vtge-milltvolt = <8000>; /* 8V */
   60         cirrus,boost-ind-nanohenry = <1000>; /* 1uH */
   61         cirrus,boost-peak-milliamp = <3000>; /* 3A */
   62 };

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sys/contrib/device-tree/Bindings/sound/cs35l34.txt