It adds device tree probe support for imx2_wdt driver.
Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
Cc: Wolfram Sang <w.sang@xxxxxxxxxxxxxx>
Cc: Wim Van Sebroeck <wim@xxxxxxxxx>
---
.../devicetree/bindings/watchdog/fsl-imx-wdt.txt | 14 ++++++++++++++
drivers/watchdog/imx2_wdt.c | 6 ++++++
2 files changed, 20 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt
diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt
new file mode 100644
index 0000000..2144af1
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt
@@ -0,0 +1,14 @@
+* Freescale i.MX Watchdog Timer (WDT) Controller
+
+Required properties:
+- compatible : Should be "fsl,<soc>-wdt"
+- reg : Should contain WDT registers location and length
+- interrupts : Should contain WDT interrupt
+
+Examples:
+
+wdt@73f98000 {
+ compatible = "fsl,imx51-wdt", "fsl,imx21-wdt";
+ reg = <0x73f98000 0x4000>;
+ interrupts = <58>;
+};
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 86f7cac..b8ef2c6 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -329,12 +329,18 @@ static void imx2_wdt_shutdown(struct platform_device *pdev)
}
}
+static const struct of_device_id imx2_wdt_dt_ids[] = {
+ { .compatible = "fsl,imx21-wdt", },
+ { /* sentinel */ }
+};
+
static struct platform_driver imx2_wdt_driver = {
.remove = __exit_p(imx2_wdt_remove),
.shutdown = imx2_wdt_shutdown,
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
+ .of_match_table = imx2_wdt_dt_ids,
},
};
--
1.7.4.1
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