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diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
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-STM32 Real Time Clock
-
-Required properties:
-- compatible: can be either "st,stm32-rtc" or "st,stm32h7-rtc", depending on
- the device is compatible with stm32(f4/f7) or stm32h7.
-- reg: address range of rtc register set.
-- clocks: can use up to two clocks, depending on part used:
- - "rtc_ck": RTC clock source.
- It is required on stm32(f4/f7) and stm32h7.
- - "pclk": RTC APB interface clock.
- It is not present on stm32(f4/f7).
- It is required on stm32h7.
-- clock-names: must be "rtc_ck" and "pclk".
- It is required only on stm32h7.
-- interrupt-parent: phandle for the interrupt controller.
-- interrupts: rtc alarm interrupt.
-- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain
- (RTC registers) write protection.
-
-Optional properties (to override default rtc_ck parent clock):
-- assigned-clocks: reference to the rtc_ck clock entry.
-- assigned-clock-parents: phandle of the new parent clock of rtc_ck.
-
-Example:
-
- rtc: rtc@40002800 {
- compatible = "st,stm32-rtc";
- reg = <0x40002800 0x400>;
- clocks = <&rcc 1 CLK_RTC>;
- assigned-clocks = <&rcc 1 CLK_RTC>;
- assigned-clock-parents = <&rcc 1 CLK_LSE>;
- interrupt-parent = <&exti>;
- interrupts = <17 1>;
- st,syscfg = <&pwrcfg>;
- };
-
- rtc: rtc@58004000 {
- compatible = "st,stm32h7-rtc";
- reg = <0x58004000 0x400>;
- clocks = <&rcc RTCAPB_CK>, <&rcc RTC_CK>;
- clock-names = "pclk", "rtc_ck";
- assigned-clocks = <&rcc RTC_CK>;
- assigned-clock-parents = <&rcc LSE_CK>;
- interrupt-parent = <&exti>;
- interrupts = <17 1>;
- interrupt-names = "alarm";
- st,syscfg = <&pwrcfg>;
- status = "disabled";
- };