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 - clocks: phandle to the clk32k clock provider
  23 - clock-names: Must be "clk32k"
  24
  25 Vibra functionality
  26 Required properties:
  27 - vddvibl-supply: Regulator for the left vibra motor
  28 - vddvibr-supply: Regulator for the right vibra motor
  29 - vibra { }: Configuration section for vibra parameters containing the following
  30              properties:
  31 - ti,vibldrv-res: Resistance parameter for left driver
  32 - ti,vibrdrv-res: Resistance parameter for right driver
  33 - ti,viblmotor-res: Resistance parameter for left motor
  34 - ti,viblmotor-res: Resistance parameter for right motor
  35
  36 Optional properties within vibra { } section:
  37 - vddvibl_uV: If the vddvibl default voltage need to be changed
  38 - vddvibr_uV: If the vddvibr default voltage need to be changed
  39
  40 Example:
  41 &i2c1 {
  42         twl6040: twl@4b {
  43                 compatible = "ti,twl6040";
  44
  45                 interrupts = <0 119 4>;
  46                 interrupt-parent = <&gic>;
  47                 twl6040,audpwron-gpio = <&gpio4 31 0>;
  48
  49                 vio-supply = <&v1v8>;
  50                 v2v1-supply = <&v2v1>;
  51                 enable-active-high;
  52
  53                 /* regulators for vibra motor */
  54                 vddvibl-supply = <&vbat>;
  55                 vddvibr-supply = <&vbat>;
  56
  57                 vibra {
  58                         /* Vibra driver, motor resistance parameters */
  59                         ti,vibldrv-res = <8>;
  60                         ti,vibrdrv-res = <3>;
  61                         ti,viblmotor-res = <10>;
  62                         ti,vibrmotor-res = <10>;
  63                 };
  64         };
  65 };
  66
  67 /include/ "twl6040.dtsi"