Documentation/devicetree/bindings/mfd/twl4030-power.txt

   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 - ti,use_poweroff: With this flag, the chip will initiates an ACTIVE-to-OFF or
  27                    SLEEP-to-OFF transition when the system poweroffs.
  28
  29 Example:
  30 &i2c1 {
  31         clock-frequency = <2600000>;
  32
  33         twl: twl@48 {
  34                 reg = <0x48>;
  35                 interrupts = <7>; /* SYS_NIRQ cascaded to intc */
  36                 interrupt-parent = <&intc>;
  37
  38                 twl_power: power {
  39                         compatible = "ti,twl4030-power";
  40                         ti,use_poweroff;
  41                 };
  42         };
  43 };