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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>
This commit is contained in:
Shawn Guo 2011-07-18 11:15:21 +08:00 committed by Wim Van Sebroeck
parent 9487a9cc71
commit f5a427eede
2 changed files with 20 additions and 0 deletions
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14
Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt Normal file
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@ -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>;
};

6
drivers/watchdog/imx2_wdt.c
View File

@ -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,
},
};