watchdog: twl4030_wdt: add DT support

Add DT support for twl4030_wdt. This is needed to get twl4030_wdt to
probe when booting with DT.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

3 files changed, 23 insertions, 2 deletions

diff --git a/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt b/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt
new file mode 100644
index 000000000000..80a37193c0b8
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt
@@ -0,0 +1,10 @@
+Device tree bindings for twl4030-wdt driver (TWL4030 watchdog)
+
+Required properties:
+        compatible = "ti,twl4030-wdt";
+
+Example:
+
+watchdog {
+        compatible = "ti,twl4030-wdt";
+};
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 63411b036932..ed0bc9546837 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -19,6 +19,10 @@
                 interrupts = <11>;
         };
 
+        watchdog {
+                compatible = "ti,twl4030-wdt";
+        };
+
         vdac: regulator-vdac {
                 compatible = "ti,twl4030-vdac";
                 regulator-min-microvolt = <1800000>;
diff --git a/drivers/watchdog/twl4030_wdt.c b/drivers/watchdog/twl4030_wdt.c
index 81918cf8993b..0f03106f7516 100644
--- a/drivers/watchdog/twl4030_wdt.c
+++ b/drivers/watchdog/twl4030_wdt.c
@@ -131,14 +131,21 @@ static int twl4030_wdt_resume(struct platform_device *pdev)
 #define twl4030_wdt_resume         NULL
 #endif
 
+static const struct of_device_id twl_wdt_of_match[] = {
+        { .compatible = "ti,twl4030-wdt", },
+        { },
+};
+MODULE_DEVICE_TABLE(of, twl_wdt_of_match);
+
 static struct platform_driver twl4030_wdt_driver = {
         .probe          = twl4030_wdt_probe,
         .remove         = twl4030_wdt_remove,
         .suspend        = twl4030_wdt_suspend,
         .resume         = twl4030_wdt_resume,
         .driver         = {
-                .owner  = THIS_MODULE,
-                .name   = "twl4030_wdt",
+                .owner          = THIS_MODULE,
+                .name           = "twl4030_wdt",
+                .of_match_table = twl_wdt_of_match,
         },
 };