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Documentation / devicetree / bindings / mfd / twl6040.txt




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Based on kernel version 3.9. Page generated on 2013-05-02 22:59 EST.

1	Texas Instruments TWL6040 family
2	
3	The TWL6040s are 8-channel high quality low-power audio codecs providing audio,
4	vibra and GPO functionality on OMAP4+ platforms.
5	They are connected ot the host processor via i2c for commands, McPDM for audio
6	data and commands.
7	
8	Required properties:
9	- compatible : "ti,twl6040" for twl6040, "ti,twl6041" for twl6041
10	- reg: must be 0x4b for i2c address
11	- interrupts: twl6040 has one interrupt line connecteded to the main SoC
12	- interrupt-parent: The parent interrupt controller
13	- gpio-controller:
14	- #gpio-cells = <1>: twl6040 provides GPO lines.
15	- twl6040,audpwron-gpio: Power on GPIO line for the twl6040
16	
17	- vio-supply: Regulator for the twl6040 VIO supply
18	- v2v1-supply: Regulator for the twl6040 V2V1 supply
19	
20	Optional properties, nodes:
21	- enable-active-high: To power on the twl6040 during boot.
22	
23	Vibra functionality
24	Required properties:
25	- vddvibl-supply: Regulator for the left vibra motor
26	- vddvibr-supply: Regulator for the right vibra motor
27	- vibra { }: Configuration section for vibra parameters containing the following
28		     properties:
29	- ti,vibldrv-res: Resistance parameter for left driver
30	- ti,vibrdrv-res: Resistance parameter for right driver
31	- ti,viblmotor-res: Resistance parameter for left motor
32	- ti,viblmotor-res: Resistance parameter for right motor
33	
34	Optional properties within vibra { } section:
35	- vddvibl_uV: If the vddvibl default voltage need to be changed
36	- vddvibr_uV: If the vddvibr default voltage need to be changed
37	
38	Example:
39	&i2c1 {
40		twl6040: twl@4b {
41			compatible = "ti,twl6040";
42	
43			interrupts = <0 119 4>;
44			interrupt-parent = <&gic>;
45			twl6040,audpwron-gpio = <&gpio4 31 0>;
46	
47			vio-supply = <&v1v8>;
48			v2v1-supply = <&v2v1>;
49			enable-active-high;
50	
51			/* regulators for vibra motor */
52			vddvibl-supply = <&vbat>;
53			vddvibr-supply = <&vbat>;
54	
55			vibra {
56				/* Vibra driver, motor resistance parameters */
57				ti,vibldrv-res = <8>;
58				ti,vibrdrv-res = <3>;
59				ti,viblmotor-res = <10>;
60				ti,vibrmotor-res = <10>;
61			};
62		};
63	};
64	
65	/include/ "twl6040.dtsi"
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