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rtc: brcmstb-waketimer: introduce WKTMR_ALARM_EVENT flag

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This commit defines bit 0 as the bit of interest within the
BRCMSTB_WKTMR_EVENT register to make the implementation more
readable.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230120190147.718976-2-opendmb@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Doug Berger 2023-01-20 11:01:42 -08:00 committed by Alexandre Belloni
parent 4cd0ca1fe9
commit 90226f6b17
1 changed files with 11 additions and 4 deletions
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15
drivers/rtc/rtc-brcmstb-waketimer.c
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@ -34,6 +34,7 @@ struct brcmstb_waketmr {
};
#define BRCMSTB_WKTMR_EVENT 0x00
#define WKTMR_ALARM_EVENT BIT(0)
#define BRCMSTB_WKTMR_COUNTER 0x04
#define BRCMSTB_WKTMR_ALARM 0x08
#define BRCMSTB_WKTMR_PRESCALER 0x0C
@ -41,9 +42,17 @@ struct brcmstb_waketmr {
#define BRCMSTB_WKTMR_DEFAULT_FREQ 27000000
static inline bool brcmstb_waketmr_is_pending(struct brcmstb_waketmr *timer)
{
u32 reg;
reg = readl_relaxed(timer->base + BRCMSTB_WKTMR_EVENT);
return !!(reg & WKTMR_ALARM_EVENT);
}
static inline void brcmstb_waketmr_clear_alarm(struct brcmstb_waketmr *timer)
{
writel_relaxed(1, timer->base + BRCMSTB_WKTMR_EVENT);
writel_relaxed(WKTMR_ALARM_EVENT, timer->base + BRCMSTB_WKTMR_EVENT);
(void)readl_relaxed(timer->base + BRCMSTB_WKTMR_EVENT);
}
@ -147,7 +156,6 @@ static int brcmstb_waketmr_getalarm(struct device *dev,
{
struct brcmstb_waketmr *timer = dev_get_drvdata(dev);
time64_t sec;
u32 reg;
sec = readl_relaxed(timer->base + BRCMSTB_WKTMR_ALARM);
if (sec != 0) {
@ -156,8 +164,7 @@ static int brcmstb_waketmr_getalarm(struct device *dev,
rtc_time64_to_tm(sec, &alarm->time);
}
reg = readl_relaxed(timer->base + BRCMSTB_WKTMR_EVENT);
alarm->pending = !!(reg & 1);
alarm->pending = brcmstb_waketmr_is_pending(timer);
return 0;
}