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SubjectRe:Re: [PATCH] rtc: pm8xxx: clear alarm register when alarm is not enabled
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Hi,
It's the same as https://patchwork.ozlabs.org/patch/1257381/, so both commit is fine.

thanks


发件人:Alexandre Belloni <alexandre.belloni@bootlin.com>
发送日期:2020-03-21 21:21:25
收件人:"韩科才" <hankecai@vivo.com>
抄送人:a.zummo@towertech.it,linux-rtc@vger.kernel.org,linux-kernel@vger.kernel.org,trivial@kernel.org,kernel@vivo.com
主题:Re: [PATCH] rtc: pm8xxx: clear alarm register when alarm is not enabled>Hi,
>
>Isn't that the same as:
>https://patchwork.ozlabs.org/patch/1257381/ ?
>
>On 21/03/2020 19:50:17+0800, 韩科才 wrote:
>> Clear alarm register when alarm is not enabled otherwise the consumer
>> may still start alarm timer if it find the alarm register is not zero.
>>
>> Signed-off-by: hankecai <hankecai@vivo.com>
>> ---
>> drivers/rtc/rtc-pm8xxx.c | 11 +++++++++++
>> 1 file changed, 11 insertions(+)
>>
>> diff --git a/drivers/rtc/rtc-pm8xxx.c b/drivers/rtc/rtc-pm8xxx.c
>> index 07ea1be3abb9..3fa5416ad90d 100644
>> --- a/drivers/rtc/rtc-pm8xxx.c
>> +++ b/drivers/rtc/rtc-pm8xxx.c
>> @@ -301,6 +301,7 @@ 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);
>>
>> @@ -319,6 +320,16 @@ 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, "Clear RTC ALARM register failed\n");
>> + goto rtc_rw_fail;
>> + }
>> + }
>> +
>> rtc_rw_fail:
>> spin_unlock_irqrestore(&rtc_dd->ctrl_reg_lock, irq_flags);
>> return rc;
>> --
>> 2.21.0
>>
>>
>>
>
>--
>Alexandre Belloni, Bootlin
>Embedded Linux and Kernel engineering
>https://bootlin.com


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