From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Sat, 19 Oct 2019 20:50:34 +0000 (+0200)
Subject: rtc: introduce lock helpers
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ae4866884338259318be94fa8f88015cced07000;p=openwrt%2Fstaging%2Fblogic.git

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>
---

diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index e86a9f307b82..4e9d3c71addb 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -159,6 +159,9 @@ struct rtc_device {
 };
 #define to_rtc_device(d) container_of(d, struct rtc_device, dev)
 
+#define rtc_lock(d) mutex_lock(&d->ops_lock)
+#define rtc_unlock(d) mutex_unlock(&d->ops_lock)
+
 /* useful timestamps */
 #define RTC_TIMESTAMP_BEGIN_0000	-62167219200ULL /* 0000-01-01 00:00:00 */
 #define RTC_TIMESTAMP_BEGIN_1900	-2208988800LL /* 1900-01-01 00:00:00 */