Kernel-3.10.0-957.el7_twl4030-audio

Texas Instruments TWL family (twl4030) audio module

The audio module inside the TWL family consist of an audio codec and a vibra
driver.

Required properties:

• compatible : must be “ti,twl4030-audio”

Optional properties, nodes:

Audio functionality:

• codec { }: Need to be present if the audio functionality is used. Within this

     section the following options can be used:
  

• ti,digimic_delay: Delay need after enabling the digimic to reduce artifacts

        from the start of the recorded sample (in ms)
  

• ti,ramp_delay_value: HS ramp delay configuration to reduce pop noise
• ti,hs_extmute: Use external mute for HS pop reduction
• ti,hs_extmute_gpio: Use external GPIO to control the external mute
• ti,offset_cncl_path: Offset cancellation path selection, refer to TRM for the

           valid values.
  

Vibra functionality

• ti,enable-vibra: Need to be set to <1> if the vibra functionality is used. if

       missing or it is 0, the vibra functionality is disabled.
  

Example:
&i2c1 {
clock-frequency = <2600000>;

twl: twl@48 {
    reg = <0x48>;
    interrupts = <7>; /* SYS_NIRQ cascaded to intc */
    interrupt-parent = <&intc>;

    twl_audio: audio {
        compatible = "ti,twl4030-audio";

        ti,enable-vibra = <1>;

        codec {
            ti,ramp_delay_value = <3>;
        };

    };
};

};