Kernel-4.18.0-80.el8_rtc-palmas

Palmas RTC controller bindings

Required properties:

  • compatible:
    • “ti,palmas-rtc” for palma series of the RTC controller
  • interrupt-parent: Parent interrupt device, must be handle of palmas node.
  • interrupts: Interrupt number of RTC submodule on device.

Optional properties:

  • ti,backup-battery-chargeable: The Palmas series device like TPS65913 or
    TPS80036 supports the backup battery for powering the RTC when main
    battery is removed or in very low power state. The backup battery
    can be chargeable or non-chargeable. This flag will tells whether
    battery is chargeable or not. If charging battery then driver can
    enable the charging.
  • ti,backup-battery-charge-high-current: Enable high current charging in
    backup battery. Device supports the < 100uA and > 100uA charging.
    The high current will be > 100uA. Absence of this property will
    charge battery to lower current i.e. < 100uA.

Example:
palmas: tps65913@58 {

palmas_rtc: rtc {
compatible = “ti,palmas-rtc”;
interrupt-parent = <&palmas>;
interrupts = <8 0>;
ti,backup-battery-chargeable;
ti,backup-battery-charge-high-current;
};

};