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Commit d048966c authored by Mohit Aggarwal's avatar Mohit Aggarwal
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rtc-pm8xxx: Clear Alarm register on resume 



Currently, alarm register is not cleared on resume
leading to reboot during power off charging mode.

Change-Id: Ie2e6bbab8aa46e4e9b9cc984181ffab557cbbdae
Signed-off-by: default avatarMohit Aggarwal <maggarwa@codeaurora.org>
parent 090c2c57

drivers/rtc/rtc-pm8xxx.c

+11 −0
Original line number Diff line number Diff line
@@ -313,6 +313,7 @@ static int pm8xxx_rtc_alarm_irq_enable(struct device *dev, unsigned int enable) 
	struct pm8xxx_rtc *rtc_dd = dev_get_drvdata(dev);

	const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;

	unsigned int ctrl_reg;

	u8 value[NUM_8_BIT_RTC_REGS] = {0};



	spin_lock_irqsave(&rtc_dd->ctrl_reg_lock, irq_flags);
@@ -331,6 +332,16 @@ static int pm8xxx_rtc_alarm_irq_enable(struct device *dev, unsigned int enable) 
		goto rtc_rw_fail;

	}



	/* Clear Alarm register */

	if (!enable) {

		rc = regmap_bulk_write(rtc_dd->regmap, regs->alarm_rw, value,

					sizeof(value));

		if (rc) {

			dev_err(dev, "Write to RTC ALARM register failed\n");

			goto rtc_rw_fail;

		}

	}



rtc_rw_fail:

	spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);

	return rc;