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