| 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; |
| }; |
| }; |
| }; |