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rtc: pcf2123: don't use weekday alarm
The week day may not be set properly by userspace. This would result is missed alarms. Disable alarm matching on weekday. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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@ -82,7 +82,7 @@
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#define OSC_HAS_STOPPED BIT(7) /* Clock has been stopped */
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/* PCF2123_REG_ALRM_XX BITS */
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#define ALRM_ENABLE BIT(7) /* MN, HR, DM, or DW alarm enable */
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#define ALRM_DISABLE BIT(7) /* MN, HR, DM, or DW alarm matching */
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/* PCF2123_REG_TMR_CLKOUT BITS */
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#define CD_TMR_4096KHZ (0) /* 4096 KHz countdown timer */
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@ -288,7 +288,7 @@ static int pcf2123_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
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txbuf[0] = bin2bcd(alm->time.tm_min & 0x7F);
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txbuf[1] = bin2bcd(alm->time.tm_hour & 0x3F);
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txbuf[2] = bin2bcd(alm->time.tm_mday & 0x3F);
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txbuf[3] = bin2bcd(alm->time.tm_wday & 0x07);
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txbuf[3] = ALRM_DISABLE;
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ret = regmap_bulk_write(pdata->map, PCF2123_REG_ALRM_MN, txbuf,
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sizeof(txbuf));
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