diff options
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/armada_37xx_wdt.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/watchdog/armada_37xx_wdt.c b/drivers/watchdog/armada_37xx_wdt.c index c43c313ba63d..4b4054f54df9 100644 --- a/drivers/watchdog/armada_37xx_wdt.c +++ b/drivers/watchdog/armada_37xx_wdt.c @@ -156,10 +156,10 @@ static int armada_37xx_wdt_ping(struct watchdog_device *wdt) static unsigned int armada_37xx_wdt_get_timeleft(struct watchdog_device *wdt) { struct armada_37xx_watchdog *dev = watchdog_get_drvdata(wdt); - unsigned int res; + u64 res; - res = get_counter_value(dev, CNTR_ID_WDOG) * - CNTR_CTRL_PRESCALE_MIN / dev->clk_rate; + res = get_counter_value(dev, CNTR_ID_WDOG) * CNTR_CTRL_PRESCALE_MIN; + do_div(res, dev->clk_rate); return res; } @@ -176,7 +176,8 @@ static int armada_37xx_wdt_set_timeout(struct watchdog_device *wdt, * prescaler, which divides the clock rate by 2 * (CNTR_CTRL_PRESCALE_MIN). */ - dev->timeout = (u64)dev->clk_rate * timeout / CNTR_CTRL_PRESCALE_MIN; + dev->timeout = (u64)dev->clk_rate * timeout; + do_div(dev->timeout, CNTR_CTRL_PRESCALE_MIN); return 0; } |