The HW default is one tick per second, however instead of assuming this,
lets make sure the waketimer is actually one tick per second before
arming the alarm.
Signed-off-by: Justin Chen <justinpopo6@xxxxxxxxx>
---
drivers/rtc/rtc-brcmstb-waketimer.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/rtc/rtc-brcmstb-waketimer.c b/drivers/rtc/rtc-brcmstb-waketimer.c
index 796ac79..46116b7 100644
--- a/drivers/rtc/rtc-brcmstb-waketimer.c
+++ b/drivers/rtc/rtc-brcmstb-waketimer.c
@@ -60,6 +60,10 @@ static void brcmstb_waketmr_set_alarm(struct brcmstb_waketmr *timer,
{
brcmstb_waketmr_clear_alarm(timer);
+ /* Make sure we are actually counting in seconds */
+ writel_relaxed(BRCMSTB_WKTMR_DEFAULT_FREQ,
+ timer->base + BRCMSTB_WKTMR_PRESCALER);
+
writel_relaxed(secs + 1, timer->base + BRCMSTB_WKTMR_ALARM);
}
--
2.7.4
