diff options
Diffstat (limited to 'drivers/char/watchdog')
| -rw-r--r-- | drivers/char/watchdog/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/char/watchdog/at32ap700x_wdt.c | 18 |
2 files changed, 13 insertions, 16 deletions
diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig index 520afb8e523..2f48ba32996 100644 --- a/drivers/char/watchdog/Kconfig +++ b/drivers/char/watchdog/Kconfig @@ -196,17 +196,6 @@ config AT32AP700X_WDT Watchdog timer embedded into AT32AP700x devices. This will reboot your system when the timeout is reached. -config AT32AP700X_WDT_TIMEOUT - int "Timeout value for AT32AP700x watchdog" - depends on AT32AP700X_WDT - default "2" - range 1 2 - help - Sets the timeout value for the watchdog in AT32AP700x devices. - Limited by hardware to be 1 or 2 seconds. - - Set to 2 seconds by default. - # X86 (i386 + ia64 + x86_64) Architecture config ACQUIRE_WDT diff --git a/drivers/char/watchdog/at32ap700x_wdt.c b/drivers/char/watchdog/at32ap700x_wdt.c index 8abe1c77ac1..6e7c9588b1b 100644 --- a/drivers/char/watchdog/at32ap700x_wdt.c +++ b/drivers/char/watchdog/at32ap700x_wdt.c @@ -20,8 +20,15 @@ #include <linux/io.h> #define TIMEOUT_MIN 1 -#define TIMEOUT_DEFAULT CONFIG_AT32AP700X_WDT_TIMEOUT #define TIMEOUT_MAX 2 +#define TIMEOUT_DEFAULT TIMEOUT_MAX + +/* module parameters */ +static int timeout = TIMEOUT_DEFAULT; +module_param(timeout, int, 0); +MODULE_PARM_DESC(timeout, + "Timeout value. Limited to be 1 or 2 seconds. (default=" + __MODULE_STRING(TIMEOUT_DEFAULT) ")"); /* Watchdog registers and write/read macro */ #define WDT_CTRL 0x00 @@ -233,11 +240,11 @@ static int __init at32_wdt_probe(struct platform_device *pdev) wdt->miscdev.name = "watchdog"; wdt->miscdev.fops = &at32_wdt_fops; - if (at32_wdt_settimeout(TIMEOUT_DEFAULT)) { - at32_wdt_settimeout(TIMEOUT_MAX); + if (at32_wdt_settimeout(timeout)) { + at32_wdt_settimeout(TIMEOUT_DEFAULT); dev_dbg(&pdev->dev, "default timeout invalid, set to %d sec.\n", - TIMEOUT_MAX); + TIMEOUT_DEFAULT); } ret = misc_register(&wdt->miscdev); @@ -248,7 +255,8 @@ static int __init at32_wdt_probe(struct platform_device *pdev) platform_set_drvdata(pdev, wdt); wdt->miscdev.parent = &pdev->dev; - dev_info(&pdev->dev, "AT32AP700X WDT at 0x%p\n", wdt->regs); + dev_info(&pdev->dev, "AT32AP700X WDT at 0x%p, timeout %d sec\n", + wdt->regs, wdt->timeout); return 0; |