rtc: brcmstb-waketimer: Set wktmr prescaler

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.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Justin Chen <justinpopo6@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Justin Chen 2018-02-26 12:09:58 -08:00 committed by Alexandre Belloni
parent f18046c50d
commit 58d3d5e79e
1 changed files with 3 additions and 0 deletions

View File

@ -60,6 +60,9 @@ 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(timer->rate, timer->base + BRCMSTB_WKTMR_PRESCALER);
writel_relaxed(secs + 1, timer->base + BRCMSTB_WKTMR_ALARM);
}