cs35l32.txt

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    1 CS35L32 audio CODEC
    2 
    3 Required properties:
    4 
    5   - compatible : "cirrus,cs35l32"
    6 
    7   - reg : the I2C address of the device for I2C. Address is determined by the level
    8   of the AD0 pin. Level 0 is 0x40 while Level 1 is 0x41.
    9 
   10   - VA-supply, VP-supply : power supplies for the device,
   11   as covered in Documentation/devicetree/bindings/regulator/regulator.txt.
   12 
   13 Optional properties:
   14 
   15   - reset-gpios : a GPIO spec for the reset pin. If specified, it will be
   16   deasserted before communication to the codec starts.
   17 
   18   - cirrus,boost-manager : Boost voltage control.
   19   0 = Automatically managed.  Boost-converter output voltage is the higher
   20   of the two: Class G or adaptive LED voltage.
   21   1 = Automatically managed irrespective of audio, adapting for low-power
   22   dissipation when LEDs are ON, and operating in Fixed-Boost Bypass Mode
   23   if LEDs are OFF (VBST = VP).
   24   2 = (Default) Boost voltage fixed in Bypass Mode (VBST = VP).
   25   3 = Boost voltage fixed at 5 V.
   26 
   27   - cirrus,sdout-datacfg : Data configuration for dual CS35L32 applications only.
   28   Determines the data packed in a two-CS35L32 configuration.
   29   0 = Left/right channels VMON[11:0], IMON[11:0], VPMON[7:0].
   30   1 = Left/right channels VMON[11:0], IMON[11:0], STATUS.
   31   2 = (Default) left/right channels VMON[15:0], IMON [15:0].
   32   3 = Left/right channels VPMON[7:0], STATUS.
   33 
   34   - cirrus,sdout-share : SDOUT sharing. Determines whether one or two CS35L32
   35   devices are on board sharing SDOUT.
   36   0 = (Default) One IC.
   37   1 = Two IC's.
   38 
   39   - cirrus,battery-recovery : Low battery nominal recovery threshold, rising VP.
   40   0 = 3.1V
   41   1 = 3.2V
   42   2 = 3.3V (Default)
   43   3 = 3.4V
   44 
   45   - cirrus,battery-threshold : Low battery nominal threshold, falling VP.
   46   0 = 3.1V
   47   1 = 3.2V
   48   2 = 3.3V
   49   3 = 3.4V (Default)
   50   4 = 3.5V
   51   5 = 3.6V
   52 
   53 Example:
   54 
   55 codec: codec@40 {
   56         compatible = "cirrus,cs35l32";
   57         reg = <0x40>;
   58         reset-gpios = <&gpio 10 0>;
   59         cirrus,boost-manager = <0x03>;
   60         cirrus,sdout-datacfg = <0x02>;
   61         VA-supply = <&reg_audio>;
   62 };

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sys/contrib/device-tree/Bindings/sound/cs35l32.txt