rtc: at91rm9200: add sama5d4 and sama5d2 compatibles

Both the sama5d4 and sama5d2 RTCs have more features than the previous
RTCs, add a compatible string for them.

Link: https://lore.kernel.org/r/20191229204421.337612-3-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
diff --git a/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml b/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml
index c55e580..39f1371 100644
--- a/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml
@@ -17,6 +17,8 @@
     enum:
       - atmel,at91rm9200-rtc
       - atmel,at91sam9x5-rtc
+      - atmel,sama5d4-rtc
+      - atmel,sama5d2-rtc
       - microchip,sam9x60-rtc
 
   reg:
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 89d91ec..bda8e00 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -313,6 +313,12 @@ static const struct of_device_id at91_rtc_dt_ids[] = {
 		.compatible = "atmel,at91sam9x5-rtc",
 		.data = &at91sam9x5_config,
 	}, {
+		.compatible = "atmel,sama5d4-rtc",
+		.data = &at91rm9200_config,
+	}, {
+		.compatible = "atmel,sama5d2-rtc",
+		.data = &at91rm9200_config,
+	}, {
 		/* sentinel */
 	}
 };