--- zzzz-none-000/linux-3.10.107/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt	2021-02-04 17:41:59.000000000 +0000
@@ -5,6 +5,7 @@
 - reg: physical base address of the controller and length of memory mapped
   region.
 - interrupts: rtc alarm/event interrupt
+- clocks: phandle to input clock.
 
 Example:
 
@@ -12,4 +13,5 @@
 	compatible = "atmel,at91rm9200-rtc";
 	reg = <0xfffffe00 0x100>;
 	interrupts = <1 4 7>;
+	clocks = <&clk32k>;
 };