linux-kernel - [PATCH 24/51] rtc: ds2404: stop using rtc deprecated functions

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Date:   Tue, 20 Jun 2017 11:35:32 +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 24/51] rtc: ds2404: 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-ds2404.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-ds2404.c b/drivers/rtc/rtc-ds2404.c
index 9a1582e..b7d04a7 100644
--- a/drivers/rtc/rtc-ds2404.c
+++ b/drivers/rtc/rtc-ds2404.c
@@ -201,16 +201,16 @@ static void ds2404_enable_osc(struct device *dev)
 
 static int ds2404_read_time(struct device *dev, struct rtc_time *dt)
 {
-	unsigned long time = 0;
+	unsigned long long time = 0;
 
 	ds2404_read_memory(dev, 0x203, 4, (u8 *)&time);
 	time = le32_to_cpu(time);
 
-	rtc_time_to_tm(time, dt);
+	rtc_time64_to_tm(time, dt);
 	return rtc_valid_tm(dt);
 }
 
-static int ds2404_set_mmss(struct device *dev, unsigned long secs)
+static int ds2404_set_mmss64(struct device *dev, time64_t secs)
 {
 	u32 time = cpu_to_le32(secs);
 	ds2404_write_memory(dev, 0x203, 4, (u8 *)&time);
@@ -219,7 +219,7 @@ static int ds2404_set_mmss(struct device *dev, unsigned long secs)
 
 static const struct rtc_class_ops ds2404_rtc_ops = {
 	.read_time	= ds2404_read_time,
-	.set_mmss	= ds2404_set_mmss,
+	.set_mmss64	= ds2404_set_mmss64,
 };
 
 static int rtc_probe(struct platform_device *pdev)
-- 
1.9.1