diff options
Diffstat (limited to 'drivers/watchdog/coh901327_wdt.c')
| -rw-r--r-- | drivers/watchdog/coh901327_wdt.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c index 7f0cbeb58770..6876430a9f5e 100644 --- a/drivers/watchdog/coh901327_wdt.c +++ b/drivers/watchdog/coh901327_wdt.c @@ -67,7 +67,7 @@ #define U300_WDOG_IFR_WILL_BARK_IRQ_FORCE_ENABLE 0x0001U /* Default timeout in seconds = 1 minute */ -static int margin = 60; +static unsigned int margin = 60; static resource_size_t phybase; static resource_size_t physize; static int irq; @@ -153,7 +153,7 @@ static void coh901327_disable(void) static int coh901327_start(struct watchdog_device *wdt_dev) { - coh901327_enable(margin * 100); + coh901327_enable(wdt_dev->timeout * 100); return 0; } @@ -176,10 +176,10 @@ static int coh901327_ping(struct watchdog_device *wdd) static int coh901327_settimeout(struct watchdog_device *wdt_dev, unsigned int time) { - margin = time; + wdt_dev->timeout = time; clk_enable(clk); /* Set new timeout value */ - writew(margin * 100, virtbase + U300_WDOG_TR); + writew(time * 100, virtbase + U300_WDOG_TR); /* Feed the dog */ writew(U300_WDOG_FR_FEED_RESTART_TIMER, virtbase + U300_WDOG_FR); @@ -250,7 +250,7 @@ static struct watchdog_device coh901327_wdt = { .info = &coh901327_ident, .ops = &coh901327_ops, /* - * Max margin is 327 since the 10ms + * Max timeout is 327 since the 10ms * timeout register is max * 0x7FFF = 327670ms ~= 327s. */ @@ -353,6 +353,10 @@ static int __init coh901327_probe(struct platform_device *pdev) clk_disable(clk); + if (margin < 1 || margin > 327) + margin = 60; + coh901327_wdt.timeout = margin; + ret = watchdog_register_device(&coh901327_wdt); if (ret == 0) dev_info(&pdev->dev, @@ -461,7 +465,7 @@ module_exit(coh901327_exit); MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>"); MODULE_DESCRIPTION("COH 901 327 Watchdog"); -module_param(margin, int, 0); +module_param(margin, uint, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)"); MODULE_LICENSE("GPL"); |