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>

diff --git a/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt b/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt
new file mode 100644 (file)
index 0000000..80a3719
--- /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 63411b0..ed0bc95 100644 (file)
--- 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 81918cf..0f03106 100644 (file)
--- 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,
        },
 };