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rtc: introduce lock helpers
Introduce rtc_lock and rtc_unlock to shorten the code when locking and unlocking ops_lock from drivers. Link: https://lore.kernel.org/r/20191019205034.6382-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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@ -159,6 +159,9 @@ struct rtc_device {
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};
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#define to_rtc_device(d) container_of(d, struct rtc_device, dev)
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#define rtc_lock(d) mutex_lock(&d->ops_lock)
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#define rtc_unlock(d) mutex_unlock(&d->ops_lock)
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/* useful timestamps */
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#define RTC_TIMESTAMP_BEGIN_0000 -62167219200ULL /* 0000-01-01 00:00:00 */
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#define RTC_TIMESTAMP_BEGIN_1900 -2208988800LL /* 1900-01-01 00:00:00 */
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