twl6040.txt

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    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 - gpio-controller:
   13 - #gpio-cells = <1>: twl6040 provides GPO lines.
   14 - #clock-cells = <0>; twl6040 is a provider of pdmclk which is used by McPDM
   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 and/or to mclk clock provider
   23 - clock-names: Must be "clk32k" for the 32K clock and "mclk" for the MCLK.
   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"

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sys/contrib/device-tree/Bindings/mfd/twl6040.txt