[PATCH 3/3] rtc: pl030: switch to rtc_time64_to_tm/rtc_tm_to_time64

From: Alexandre Belloni
Date: Thu Mar 05 2020 - 19:57:41 EST


Call the 64bit versions of rtc_tm time conversion to avoid the y2106 issue.

Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
---
drivers/rtc/rtc-pl030.c | 21 +++++++--------------
1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index 55776e8fa87c..ebe03eba8f5f 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -36,27 +36,24 @@ static int pl030_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{
struct pl030_rtc *rtc = dev_get_drvdata(dev);

- rtc_time_to_tm(readl(rtc->base + RTC_MR), &alrm->time);
+ rtc_time64_to_tm(readl(rtc->base + RTC_MR), &alrm->time);
return 0;
}

static int pl030_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
{
struct pl030_rtc *rtc = dev_get_drvdata(dev);
- unsigned long time;
- int ret;

- ret = rtc_tm_to_time(&alrm->time, &time);
- if (ret == 0)
- writel(time, rtc->base + RTC_MR);
- return ret;
+ writel(rtc_tm_to_time64(&alrm->time), rtc->base + RTC_MR);
+
+ return 0;
}

static int pl030_read_time(struct device *dev, struct rtc_time *tm)
{
struct pl030_rtc *rtc = dev_get_drvdata(dev);

- rtc_time_to_tm(readl(rtc->base + RTC_DR), tm);
+ rtc_time64_to_tm(readl(rtc->base + RTC_DR), tm);

return 0;
}
@@ -72,14 +69,10 @@ static int pl030_read_time(struct device *dev, struct rtc_time *tm)
static int pl030_set_time(struct device *dev, struct rtc_time *tm)
{
struct pl030_rtc *rtc = dev_get_drvdata(dev);
- unsigned long time;
- int ret;

- ret = rtc_tm_to_time(tm, &time);
- if (ret == 0)
- writel(time + 1, rtc->base + RTC_LR);
+ writel(rtc_tm_to_time64(tm) + 1, rtc->base + RTC_LR);

- return ret;
+ return 0;
}

static const struct rtc_class_ops pl030_ops = {
--
2.24.1