[PATCH] rtc: at91rm9200: add DT support

[Joachim Eastwood]

Signed-off-by: Joachim Eastwood <manabian at gmail.com>
---
 .../devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt      | 15 +++++++++++++++
 drivers/rtc/rtc-at91rm9200.c                              |  9 +++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt

diff --git a/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt b/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt
new file mode 100644
index 0000000..2a3feab
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.txt
@@ -0,0 +1,15 @@
+Atmel AT91RM9200 Real Time Clock
+
+Required properties:
+- compatible: should be: "atmel,at91rm9200-rtc"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: rtc alarm/event interrupt
+
+Example:
+
+rtc at fffffe00 {
+	compatible = "atmel,at91rm9200-rtc";
+	reg = <0xfffffe00 0x100>;
+	interrupts = <1 4 7>;
+};
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index b6469e2..2ea0ee3 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -28,6 +28,8 @@
 #include <linux/ioctl.h>
 #include <linux/completion.h>
 #include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/uaccess.h>
 
@@ -382,12 +384,19 @@ static const struct dev_pm_ops at91_rtc_pm = {
 #define at91_rtc_pm_ptr	NULL
 #endif
 
+static const struct of_device_id at91_rtc_dt_ids[] = {
+	{ .compatible = "atmel,at91rm9200-rtc" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, at91_rtc_dt_ids);
+
 static struct platform_driver at91_rtc_driver = {
 	.remove		= __exit_p(at91_rtc_remove),
 	.driver		= {
 		.name	= "at91_rtc",
 		.owner	= THIS_MODULE,
 		.pm	= at91_rtc_pm_ptr,
+		.of_match_table = of_match_ptr(at91_rtc_dt_ids),
 	},
 };
 
-- 
1.8.0