watchdog: davinci_wdt: add OF support

This adds OF support for davinci_wdt driver.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

2 files changed, 19 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
new file mode 100644
index 000000000000..75558ccd9a05
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
@@ -0,0 +1,12 @@
+DaVinci Watchdog Timer (WDT) Controller
+
+Required properties:
+- compatible : Should be "ti,davinci-wdt"
+- reg : Should contain WDT registers location and length
+
+Examples:
+
+wdt: wdt@2320000 {
+        compatible = "ti,davinci-wdt";
+        reg = <0x02320000 0x80>;
+};
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 6000aea7e2e1..e8e87246ea6d 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -262,10 +262,17 @@ static int davinci_wdt_remove(struct platform_device *pdev)
         return 0;
 }
 
+static const struct of_device_id davinci_wdt_of_match[] = {
+        { .compatible = "ti,davinci-wdt", },
+        {},
+};
+MODULE_DEVICE_TABLE(of, davinci_wdt_of_match);
+
 static struct platform_driver platform_wdt_driver = {
         .driver = {
                 .name = "watchdog",
                 .owner  = THIS_MODULE,
+                .of_match_table = davinci_wdt_of_match,
         },
         .probe = davinci_wdt_probe,
         .remove = davinci_wdt_remove,