linux-kernel - [PATCH 28/51] rtc: jz4740: stop using rtc deprecated functions

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Date:   Tue, 20 Jun 2017 11:35:36 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...aro.org>
To:     benjamin.gaignard@...aro.org
Cc:     linaro-kernel@...ts.linaro.org,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org
Subject: [PATCH 28/51] rtc: jz4740: stop using rtc deprecated functions

rtc_time_to_tm() and rtc_tm_to_time() are deprecated because they
rely on 32bits variables and that will make rtc break in y2038/2016.
Stop using those two functions to safer 64bits ones.

For the same reasons use set_mmss64 callback instead of set_mmss

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...aro.org>
CC: Alessandro Zummo <a.zummo@...ertech.it>
CC: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
CC: rtc-linux@...glegroups.com
CC: linux-kernel@...r.kernel.org
---
 drivers/rtc/rtc-jz4740.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index 64989af..7ce1f43 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -171,12 +171,12 @@ static int jz4740_rtc_read_time(struct device *dev, struct rtc_time *time)
 	if (timeout == 0)
 		return -EIO;
 
-	rtc_time_to_tm(secs, time);
+	rtc_time64_to_tm((u64)secs, time);
 
 	return rtc_valid_tm(time);
 }
 
-static int jz4740_rtc_set_mmss(struct device *dev, unsigned long secs)
+static int jz4740_rtc_set_mmss64(struct device *dev, time64_t secs)
 {
 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);
 
@@ -196,7 +196,7 @@ static int jz4740_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm->enabled = !!(ctrl & JZ_RTC_CTRL_AE);
 	alrm->pending = !!(ctrl & JZ_RTC_CTRL_AF);
 
-	rtc_time_to_tm(secs, &alrm->time);
+	rtc_time64_to_tm((u64)secs, &alrm->time);
 
 	return rtc_valid_tm(&alrm->time);
 }
@@ -205,9 +205,9 @@ static int jz4740_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	int ret;
 	struct jz4740_rtc *rtc = dev_get_drvdata(dev);
-	unsigned long secs;
+	unsigned long long secs;
 
-	rtc_tm_to_time(&alrm->time, &secs);
+	secs = rtc_tm_to_time64(&alrm->time);
 
 	ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SEC_ALARM, secs);
 	if (!ret)
@@ -225,7 +225,7 @@ static int jz4740_rtc_alarm_irq_enable(struct device *dev, unsigned int enable)
 
 static const struct rtc_class_ops jz4740_rtc_ops = {
 	.read_time	= jz4740_rtc_read_time,
-	.set_mmss	= jz4740_rtc_set_mmss,
+	.set_mmss64	= jz4740_rtc_set_mmss64,
 	.read_alarm	= jz4740_rtc_read_alarm,
 	.set_alarm	= jz4740_rtc_set_alarm,
 	.alarm_irq_enable = jz4740_rtc_alarm_irq_enable,
-- 
1.9.1