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- Texas Instruments TWL family (twl4030) reset and power management module
- The power management module inside the TWL family provides several facilities
- to control the power resources, including power scripts. For now, the
- binding only supports the complete shutdown of the system after poweroff.
- Required properties:
- - compatible : must be one of the following
- "ti,twl4030-power"
- "ti,twl4030-power-reset"
- "ti,twl4030-power-idle"
- "ti,twl4030-power-idle-osc-off"
- The use of ti,twl4030-power-reset is recommended at least on
- 3530 that needs a special configuration for warm reset to work.
- When using ti,twl4030-power-idle, the TI recommended configuration
- for idle modes is loaded to the tlw4030 PMIC.
- When using ti,twl4030-power-idle-osc-off, the TI recommended
- configuration is used with the external oscillator being shut
- down during off-idle. Note that this does not work on all boards
- depending on how the external oscillator is wired.
- Optional properties:
- - ti,system-power-controller: This indicates that TWL4030 is the
- power supply master of the system. With this flag, the chip will
- initiate an ACTIVE-to-OFF or SLEEP-to-OFF transition when the
- system poweroffs.
- - ti,use_poweroff: Deprecated name for ti,system-power-controller
- Example:
- &i2c1 {
- clock-frequency = <2600000>;
- twl: twl@48 {
- reg = <0x48>;
- interrupts = <7>; /* SYS_NIRQ cascaded to intc */
- interrupt-parent = <&intc>;
- twl_power: power {
- compatible = "ti,twl4030-power";
- ti,use_poweroff;
- };
- };
- };
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