[PATCH 34/51] rtc: pl031: stop using rtc deprecated functions
Benjamin Gaignard
benjamin.gaignard at linaro.org
Tue Jun 20 02:35:42 PDT 2017
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.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard at linaro.org>
CC: Linus Walleij <linus.walleij at linaro.org>
CC: Alessandro Zummo <a.zummo at towertech.it>
CC: Alexandre Belloni <alexandre.belloni at free-electrons.com>
CC: rtc-linux at googlegroups.com
CC: linux-kernel at vger.kernel.org
CC: linux-arm-kernel at lists.infradead.org
---
drivers/rtc/rtc-pl031.c | 31 +++++++++++++------------------
1 file changed, 13 insertions(+), 18 deletions(-)
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index e1687e1..07f72b3 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -127,11 +127,11 @@ static int pl031_stv2_tm_to_time(struct device *dev,
return -EINVAL;
} else if (wday == -1) {
/* wday is not provided, calculate it here */
- unsigned long time;
+ unsigned long long time;
struct rtc_time calc_tm;
- rtc_tm_to_time(tm, &time);
- rtc_time_to_tm(time, &calc_tm);
+ time = rtc_tm_to_time64(tm);
+ rtc_time64_to_tm(time, &calc_tm);
wday = calc_tm.tm_wday;
}
@@ -252,30 +252,27 @@ static int pl031_read_time(struct device *dev, struct rtc_time *tm)
{
struct pl031_local *ldata = dev_get_drvdata(dev);
- rtc_time_to_tm(readl(ldata->base + RTC_DR), tm);
+ rtc_time64_to_tm(readl(ldata->base + RTC_DR), tm);
return 0;
}
static int pl031_set_time(struct device *dev, struct rtc_time *tm)
{
- unsigned long time;
+ unsigned long long time;
struct pl031_local *ldata = dev_get_drvdata(dev);
- int ret;
-
- ret = rtc_tm_to_time(tm, &time);
- if (ret == 0)
- writel(time, ldata->base + RTC_LR);
+ time = rtc_tm_to_time64(tm);
+ writel(time, ldata->base + RTC_LR);
- return ret;
+ return 0;
}
static int pl031_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct pl031_local *ldata = dev_get_drvdata(dev);
- rtc_time_to_tm(readl(ldata->base + RTC_MR), &alarm->time);
+ rtc_time64_to_tm(readl(ldata->base + RTC_MR), &alarm->time);
alarm->pending = readl(ldata->base + RTC_RIS) & RTC_BIT_AI;
alarm->enabled = readl(ldata->base + RTC_IMSC) & RTC_BIT_AI;
@@ -286,17 +283,15 @@ static int pl031_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
static int pl031_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct pl031_local *ldata = dev_get_drvdata(dev);
- unsigned long time;
+ unsigned long long time;
int ret;
/* At the moment, we can only deal with non-wildcarded alarm times. */
ret = rtc_valid_tm(&alarm->time);
if (ret == 0) {
- ret = rtc_tm_to_time(&alarm->time, &time);
- if (ret == 0) {
- writel(time, ldata->base + RTC_MR);
- pl031_alarm_irq_enable(dev, alarm->enabled);
- }
+ time = rtc_tm_to_time64(&alarm->time);
+ writel(time, ldata->base + RTC_MR);
+ pl031_alarm_irq_enable(dev, alarm->enabled);
}
return ret;
--
1.9.1
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