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Linux_Drivers/linux_5.10/Documentation/devicetree/bindings/rtc/rtc-st-lpc.txt
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
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	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

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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 = <ST_LPC_MODE_RTC>;
};