kernel/Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt
.. .. @@ -1,7 +1,9 @@ 1 1 Atmel AT91SAM9260 Real Time Timer 2 2 3 3 Required properties: 4 -- compatible: should be: "atmel,at91sam9260-rtt"4 +- compatible: should be one of the following:5 + - "atmel,at91sam9260-rtt"6 + - "microchip,sam9x60-rtt", "atmel,at91sam9260-rtt"5 7 - reg: should encode the memory region of the RTT controller 6 8 - interrupts: rtt alarm/event interrupt 7 9 - clocks: should contain the 32 KHz slow clk that will drive the RTT block.