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[~andy/linux] / Documentation / devicetree / bindings / mfd / twl6040.txt
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"