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authorShawn Guo <shawn.guo@linaro.org>2011-07-18 11:15:21 +0800
committerWim Van Sebroeck <wim@iguana.be>2011-07-26 21:19:16 +0000
commitf5a427eedeead2be82561497a12788bd1f0c07d3 (patch)
treec983a6b9a761dbb4a635b24766a8c39d9a894731
parent9487a9cc7140ef88d532c989570ee77436ede1e0 (diff)
watchdog: imx2_wdt: add device tree probe support
Adds device tree probe support for imx2_wdt driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
-rw-r--r--Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt14
-rw-r--r--drivers/watchdog/imx2_wdt.c6
2 files changed, 20 insertions, 0 deletions
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 00000000000..2144af1a526
--- /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 86f7cac1026..b8ef2c6dca7 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,
},
};