From: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Add device tree support to the DW watchdog timer.
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Cc: Jamie Iles <jamie@xxxxxxxxxxxxx>
Cc: Viresh Kumar <viresh.kumar@xxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxx>
Cc: Rob Herring <rob.herring@xxxxxxxxxxx>
Cc: Wim Van Sebroeck <wim@xxxxxxxxx>
Cc: Pavel Machek <pavel@xxxxxxx>
---
.../devicetree/bindings/watchdog/dw_wdt.txt | 16 ++++++++++++++++
drivers/watchdog/dw_wdt.c | 7 +++++++
2 files changed, 23 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/dw_wdt.txt
diff --git a/Documentation/devicetree/bindings/watchdog/dw_wdt.txt b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
new file mode 100644
index 0000000..29e150b
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
@@ -0,0 +1,16 @@
+Synopsys Designware Watchdog Timer
+
+Required Properties:
+
+- Compatiblity : "snps,dw-wdt"
+- reg : Base address of the watchdog timer register.
+
+Example:
+
+ watchdog0: wd@ffd02000 {
+ compatible = "snps,dw-wdt";
+ reg = <0xffd02000 0x1000>;
+ interrupts = <0 171 4>;
+ clocks = <&per_base_clk>;
+ status = "okay";
+ };
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index 2037669..f7eec38 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -343,12 +343,19 @@ static int dw_wdt_drv_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id dw_wdt_of_match[] = {
+ { .compatible = "snps,dw-wdt", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dw_wdt_of_match);
+
static struct platform_driver dw_wdt_driver = {
.probe = dw_wdt_drv_probe,
.remove = dw_wdt_drv_remove,
.driver = {
.name = "dw_wdt",
.owner = THIS_MODULE,
+ .of_match_table = dw_wdt_of_match,
#ifdef CONFIG_PM
.pm = &dw_wdt_pm_ops,
#endif /* CONFIG_PM */
--
1.7.9.5
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