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rtc: brcmstb-waketimer: Set wktmr prescaler

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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
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3
drivers/rtc/rtc-brcmstb-waketimer.c
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@ -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);
}