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Documentation / devicetree / bindings / mfd / twl4030-audio.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:37 EST.

1	Texas Instruments TWL family (twl4030) audio module
2	
3	The audio module inside the TWL family consist of an audio codec and a vibra
4	driver.
5	
6	Required properties:
7	- compatible : must be "ti,twl4030-audio"
8	
9	Optional properties, nodes:
10	
11	Audio functionality:
12	- codec { }: Need to be present if the audio functionality is used. Within this
13		     section the following options can be used:
14	- ti,digimic_delay: Delay need after enabling the digimic to reduce artifacts
15			    from the start of the recorded sample (in ms)
16	-ti,ramp_delay_value: HS ramp delay configuration to reduce pop noise
17	-ti,hs_extmute: Use external mute for HS pop reduction
18	-ti,hs_extmute_gpio: Use external GPIO to control the external mute
19	-ti,offset_cncl_path: Offset cancellation path selection, refer to TRM for the
20			      valid values.
21	
22	Vibra functionality
23	- ti,enable-vibra: Need to be set to <1> if the vibra functionality is used. if
24			   missing or it is 0, the vibra functionality is disabled.
25	
26	Example:
27	&i2c1 {
28		clock-frequency = <2600000>;
29	
30		twl: twl@48 {
31			reg = <0x48>;
32			interrupts = <7>; /* SYS_NIRQ cascaded to intc */
33			interrupt-parent = <&intc>;
34	
35			twl_audio: audio {
36				compatible = "ti,twl4030-audio";
37	
38				ti,enable-vibra = <1>;
39	
40				codec {
41					ti,ramp_delay_value = <3>;
42				};
43	
44			};
45		};
46	};
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