Kernel-4.18.0-80.el8_rtc-st-lpc

STMicroelectronics Low Power Controller (LPC) - RTC

LPC currently supports Watchdog OR Real Time Clock OR Clocksource
functionality.

[See: ../watchdog/st_lpc_wdt.txt for Watchdog options]
[See: ../timer/st,stih407-lpc for Clocksource options]

Required properties

  • compatible : Must be: “st,stih407-lpc”
  • reg : LPC registers base address + size
  • interrupts : LPC interrupt line number and associated flags
  • clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt)
  • st,lpc-mode : The LPC can run either one of three modes:
                ST_LPC_MODE_RTC    [0]
                ST_LPC_MODE_WDT    [1]
                ST_LPC_MODE_CLKSRC [2]
       One (and only one) mode must be selected.
    

Example:
lpc@fde05000 {
compatible = “st,stih407-lpc”;
reg = <0xfde05000 0x1000>;
clocks = <&clk_s_d3_flexgen CLK_LPC_0>;
st,lpc-mode = ;
};