019a7e6b7b
Support for loading the twl4030 audio module via devicetree. Sub devices for codec and vibra will be created as mfd devices once the core MFD driver is loaded when the kernel is booted with a DT blob. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
46 lines
1.2 KiB
Text
46 lines
1.2 KiB
Text
Texas Instruments TWL family (twl4030) audio module
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The audio module inside the TWL family consist of an audio codec and a vibra
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driver.
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Required properties:
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- compatible : must be "ti,twl4030-audio"
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Optional properties, nodes:
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Audio functionality:
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- codec { }: Need to be present if the audio functionality is used. Within this
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section the following options can be used:
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- ti,digimic_delay: Delay need after enabling the digimic to reduce artifacts
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from the start of the recorded sample (in ms)
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-ti,ramp_delay_value: HS ramp delay configuration to reduce pop noise
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-ti,hs_extmute: Use external mute for HS pop reduction
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-ti,hs_extmute_gpio: Use external GPIO to control the external mute
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-ti,offset_cncl_path: Offset cancellation path selection, refer to TRM for the
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valid values.
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Vibra functionality
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- ti,enable-vibra: Need to be set to <1> if the vibra functionality is used. if
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missing or it is 0, the vibra functionality is disabled.
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Example:
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&i2c1 {
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clock-frequency = <2600000>;
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twl: twl@48 {
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reg = <0x48>;
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interrupts = <7>; /* SYS_NIRQ cascaded to intc */
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interrupt-parent = <&intc>;
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twl_audio: audio {
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compatible = "ti,twl4030-audio";
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ti,enable-vibra = <1>;
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codec {
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ti,ramp_delay_value = <3>;
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};
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};
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};
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};
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