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Diffstat (limited to 'Documentation/devicetree/bindings/mfd/twl4030-audio.txt')
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diff --git a/Documentation/devicetree/bindings/mfd/twl4030-audio.txt b/Documentation/devicetree/bindings/mfd/twl4030-audio.txt new file mode 100644 index 000000000000..414d2ae0adf6 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/twl4030-audio.txt | |||
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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 | }; | ||