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watchdog: at91rm9200: add DT support

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Add DT support for at91rm9200_wdt.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Joachim Eastwood 2013-02-14 23:02:29 +01:00 committed by Wim Van Sebroeck
parent c1fd5f6402
commit a6a1bcd370
3 changed files with 19 additions and 1 deletions
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9
Documentation/devicetree/bindings/watchdog/atmel-at91rm9200-wdt.txt Normal file
View File

@ -0,0 +1,9 @@
Atmel AT91RM9200 System Timer Watchdog
Required properties:
- compatible: must be "atmel,at91sam9260-wdt".
Example:
watchdog@fffffd00 {
compatible = "atmel,at91rm9200-wdt";
};

2
drivers/watchdog/Kconfig
View File

@ -117,7 +117,7 @@ config ARM_SP805_WATCHDOG
config AT91RM9200_WATCHDOG
tristate "AT91RM9200 watchdog"
depends on ARCH_AT91RM9200
depends on ARCH_AT91
help
Watchdog timer embedded into AT91RM9200 chips. This will reboot your
system when the timeout is reached.

9
drivers/watchdog/at91rm9200_wdt.c
View File

@ -24,6 +24,8 @@
#include <linux/types.h>
#include <linux/watchdog.h>
#include <linux/uaccess.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <mach/at91_st.h>
#define WDT_DEFAULT_TIME 5 /* seconds */
@ -252,6 +254,12 @@ static int at91wdt_resume(struct platform_device *pdev)
#define at91wdt_resume NULL
#endif
static const struct of_device_id at91_wdt_dt_ids[] = {
{ .compatible = "atmel,at91rm9200-wdt" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, at91_wdt_dt_ids);
static struct platform_driver at91wdt_driver = {
.probe = at91wdt_probe,
.remove = at91wdt_remove,
@ -261,6 +269,7 @@ static struct platform_driver at91wdt_driver = {
.driver = {
.name = "at91_wdt",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(at91_wdt_dt_ids),
},
};