watchdog: Device tree support for pnx4008-wdt

This patch adds device tree support to pnx4008-wdt.c

Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/Documentation/devicetree/bindings/watchdog/pnx4008-wdt.txt b/Documentation/devicetree/bindings/watchdog/pnx4008-wdt.txt
new file mode 100644 (file)
index 0000000..7c7f688
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/pnx4008-wdt.txt
@@ -0,0 +1,13 @@
+* NXP PNX watchdog timer
+
+Required properties:
+- compatible: must be "nxp,pnx4008-wdt"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+
+Example:
+
+       watchdog@4003C000 {
+               compatible = "nxp,pnx4008-wdt";
+               reg = <0x4003C000 0x1000>;
+       };

diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 6b8432f61d05d922b0279530426429fa9d687cd8..87722e1260581ca27a9f8b7b1c34098611ec6022 100644 (file)
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -32,6 +32,7 @@
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/err.h>
+#include <linux/of.h>
 #include <mach/hardware.h>
 
 /* WatchDog Timer - Chapter 23 Page 207 */
@@ -201,10 +202,19 @@ static int __devexit pnx4008_wdt_remove(struct platform_device *pdev)
        return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id pnx4008_wdt_match[] = {
+       { .compatible = "nxp,pnx4008-wdt" },
+       { }
+};
+MODULE_DEVICE_TABLE(of, pnx4008_wdt_match);
+#endif
+
 static struct platform_driver platform_wdt_driver = {
        .driver = {
                .name = "pnx4008-watchdog",
                .owner  = THIS_MODULE,
+               .of_match_table = of_match_ptr(pnx4008_wdt_match),
        },
        .probe = pnx4008_wdt_probe,
        .remove = __devexit_p(pnx4008_wdt_remove),