Texas Instruments Palmas family power button module
This module is part of the Palmas family of PMICs. For more details
about the whole chip see:
Documentation/devicetree/bindings/mfd/palmas.txt.
This module provides a simple power button event via an Interrupt.
Required properties:
- compatible: should be one of the following
- “ti,palmas-pwrbutton”: For Palmas compatible power on button
- interrupt-parent: Parent interrupt device, must be handle of palmas node.
- interrupts: Interrupt number of power button submodule on device.
Optional Properties:
- ti,palmas-long-press-seconds: Duration in seconds which the power
button should be kept pressed for Palmas to power off automatically.
NOTE: This depends on OTP support and POWERHOLD signal configuration
on platform. Valid values are 6, 8, 10 and 12. - ti,palmas-pwron-debounce-milli-seconds: Duration in milliseconds
which the power button should be kept pressed for Palmas to register
a press for debouncing purposes. NOTE: This depends on specific
Palmas variation capability. Valid values are 15, 100, 500 and 1000.
Example:
&palmas {
palmas_pwr_button: pwrbutton {
compatible = “ti,palmas-pwrbutton”;
interrupt-parent = <&tps659038>;
interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
ti,palmas-long-press-seconds = <12>;
ti,palmas-pwron-debounce-milli-seconds = <15>;
};
};
