When the driver is built on 32 bit architectures during compile test,
the linker complains about "__udivdi3" being undefined. We have to use
do_div macro instead of the division operator when dividing u64 value.
Signed-off-by: Marek Behún <marek.behun@xxxxxx>
---
drivers/watchdog/armada_37xx_wdt.c | 9 +++++----
1 file 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;
}
--
2.16.4
