Kernel-4.18.0-80.el8_ti,tas5086

Texas Instruments TAS5086 6-channel PWM Processor

Required properties:

  • compatible: Should contain “ti,tas5086”.
  • reg: The i2c address. Should contain <0x1b>.

Optional properties:

  • reset-gpio: A GPIO spec to define which pin is connected to the

         chip's !RESET pin. If specified, the driver will
         assert a hardware reset at probe time.
    
  • ti,charge-period: This property should contain the time in microseconds

         that closely matches the external single-ended
         split-capacitor charge period. The hardware chip
         waits for this period of time before starting the
         PWM signals. This helps reduce pops and clicks.
    
         When not specified, the hardware default of 1300ms
         is retained.
    
  • ti,mid-z-channel-X: Boolean properties, X being a number from 1 to 6.

         If given, channel X will start with the Mid-Z start
         sequence, otherwise the default Low-Z scheme is used.
    
         The correct configuration depends on how the power
         stages connected to the PWM output pins work. Not all
         power stages are compatible to Mid-Z - please refer
         to the datasheets for more details.
    
         Most systems should not set any of these properties.
    
  • avdd-supply: Power supply for AVDD, providing 3.3V

  • dvdd-supply: Power supply for DVDD, providing 3.3V

Examples:

i2c_bus {
    tas5086@1b {
        compatible = "ti,tas5086";
        reg = <0x1b>;
        reset-gpio = <&gpio 23 0>;
        ti,charge-period = <156000>;
        avdd-supply = <&vdd_3v3_reg>;
        dvdd-supply = <&vdd_3v3_reg>;
    };
};