From 9487a9cc7140ef88d532c989570ee77436ede1e0 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Wed, 22 Jun 2011 15:24:32 +0530 Subject: [PATCH] watchdog: s3c2410: Add support for device tree based probe This patch adds the of_match_table to enable s3c2410-wdt driver to be probed when watchdog device node is found in the device tree. Signed-off-by: Thomas Abraham Acked-by: Grant Likely Signed-off-by: Wim Van Sebroeck --- .../devicetree/bindings/watchdog/samsung-wdt.txt | 11 +++++++++++ drivers/watchdog/s3c2410_wdt.c | 10 ++++++++++ 2 files changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/samsung-wdt.txt diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt new file mode 100644 index 000000000000..79ead8263ae4 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt @@ -0,0 +1,11 @@ +* Samsung's Watchdog Timer Controller + +The Samsung's Watchdog controller is used for resuming system operation +after a preset amount of time during which the WDT reset event has not +occured. + +Required properties: +- compatible : should be "samsung,s3c2410-wdt" +- reg : base physical address of the controller and length of memory mapped + region. +- interrupts : interrupt number to the cpu. diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index f7f5aa00df60..30da88f47cd3 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -589,6 +589,15 @@ static int s3c2410wdt_resume(struct platform_device *dev) #define s3c2410wdt_resume NULL #endif /* CONFIG_PM */ +#ifdef CONFIG_OF +static const struct of_device_id s3c2410_wdt_match[] = { + { .compatible = "samsung,s3c2410-wdt" }, + {}, +}; +MODULE_DEVICE_TABLE(of, s3c2410_wdt_match); +#else +#define s3c2410_wdt_match NULL +#endif static struct platform_driver s3c2410wdt_driver = { .probe = s3c2410wdt_probe, @@ -599,6 +608,7 @@ static struct platform_driver s3c2410wdt_driver = { .driver = { .owner = THIS_MODULE, .name = "s3c2410-wdt", + .of_match_table = s3c2410_wdt_match, }, };