twl4030-power.txt

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    1 Texas Instruments TWL family (twl4030) reset and power management module
    2 
    3 The power management module inside the TWL family provides several facilities
    4 to control the power resources, including power scripts. For now, the
    5 binding only supports the complete shutdown of the system after poweroff.
    6 
    7 Required properties:
    8 - compatible : must be one of the following
    9         "ti,twl4030-power"
   10         "ti,twl4030-power-reset"
   11         "ti,twl4030-power-idle"
   12         "ti,twl4030-power-idle-osc-off"
   13 
   14 The use of ti,twl4030-power-reset is recommended at least on
   15 3530 that needs a special configuration for warm reset to work.
   16 
   17 When using ti,twl4030-power-idle, the TI recommended configuration
   18 for idle modes is loaded to the tlw4030 PMIC.
   19 
   20 When using ti,twl4030-power-idle-osc-off, the TI recommended
   21 configuration is used with the external oscillator being shut
   22 down during off-idle. Note that this does not work on all boards
   23 depending on how the external oscillator is wired.
   24 
   25 Optional properties:
   26 
   27 - ti,system-power-controller: This indicates that TWL4030 is the
   28   power supply master of the system. With this flag, the chip will
   29   initiate an ACTIVE-to-OFF or SLEEP-to-OFF transition when the
   30   system poweroffs.
   31 
   32 - ti,use_poweroff: Deprecated name for ti,system-power-controller
   33 
   34 Example:
   35 &i2c1 {
   36         clock-frequency = <2600000>;
   37 
   38         twl: twl@48 {
   39                 reg = <0x48>;
   40                 interrupts = <7>; /* SYS_NIRQ cascaded to intc */
   41                 interrupt-parent = <&intc>;
   42 
   43                 twl_power: power {
   44                         compatible = "ti,twl4030-power";
   45                         ti,use_poweroff;
   46                 };
   47         };
   48 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/mfd/twl4030-power.txt

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sys/contrib/device-tree/Bindings/mfd/twl4030-power.txt