Kernel-4.18.0-80.el8_cs35l32

CS35L32 audio CODEC

Required properties:

  • compatible : “cirrus,cs35l32”

  • reg : the I2C address of the device for I2C. Address is determined by the level
    of the AD0 pin. Level 0 is 0x40 while Level 1 is 0x41.

  • VA-supply, VP-supply : power supplies for the device,
    as covered in Documentation/devicetree/bindings/regulator/regulator.txt.

Optional properties:

  • reset-gpios : a GPIO spec for the reset pin. If specified, it will be
    deasserted before communication to the codec starts.

  • cirrus,boost-manager : Boost voltage control.
    0 = Automatically managed. Boost-converter output voltage is the higher
    of the two: Class G or adaptive LED voltage.
    1 = Automatically managed irrespective of audio, adapting for low-power
    dissipation when LEDs are ON, and operating in Fixed-Boost Bypass Mode
    if LEDs are OFF (VBST = VP).
    2 = (Default) Boost voltage fixed in Bypass Mode (VBST = VP).
    3 = Boost voltage fixed at 5 V.

  • cirrus,sdout-datacfg : Data configuration for dual CS35L32 applications only.
    Determines the data packed in a two-CS35L32 configuration.
    0 = Left/right channels VMON[11:0], IMON[11:0], VPMON[7:0].
    1 = Left/right channels VMON[11:0], IMON[11:0], STATUS.
    2 = (Default) left/right channels VMON[15:0], IMON [15:0].
    3 = Left/right channels VPMON[7:0], STATUS.

  • cirrus,sdout-share : SDOUT sharing. Determines whether one or two CS35L32
    devices are on board sharing SDOUT.
    0 = (Default) One IC.
    1 = Two IC’s.

  • cirrus,battery-recovery : Low battery nominal recovery threshold, rising VP.
    0 = 3.1V
    1 = 3.2V
    2 = 3.3V (Default)
    3 = 3.4V

  • cirrus,battery-threshold : Low battery nominal threshold, falling VP.
    0 = 3.1V
    1 = 3.2V
    2 = 3.3V
    3 = 3.4V (Default)
    4 = 3.5V
    5 = 3.6V

Example:

codec: codec@40 {
compatible = “cirrus,cs35l32”;
reg = <0x40>;
reset-gpios = <&gpio 10 0>;
cirrus,boost-manager = <0x03>;
cirrus,sdout-datacfg = <0x02>;
VA-supply = <&reg_audio>;
};