rtc: ftrtc010: let the core handle range
The current range handling is highly suspicious. Anyway, let the core
handle it.
The RTC has a 32 bit counter on top of days + hh:mm:ss registers.
Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
diff --git a/drivers/rtc/rtc-ftrtc010.c b/drivers/rtc/rtc-ftrtc010.c
index 2cdc78f..61f798c 100644
--- a/drivers/rtc/rtc-ftrtc010.c
+++ b/drivers/rtc/rtc-ftrtc010.c
@@ -95,9 +95,6 @@
u32 sec, min, hour, day, offset;
timeu64_t time;
- if (tm->tm_year >= 2148) /* EPOCH Year + 179 */
- return -EINVAL;
-
time = rtc_tm_to_time64(tm);
sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
@@ -120,6 +117,7 @@
static int ftrtc010_rtc_probe(struct platform_device *pdev)
{
+ u32 days, hour, min, sec;
struct ftrtc010_rtc *rtc;
struct device *dev = &pdev->dev;
struct resource *res;
@@ -172,6 +170,15 @@
rtc->rtc_dev->ops = &ftrtc010_rtc_ops;
+ sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
+ min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
+ hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
+ days = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
+
+ rtc->rtc_dev->range_min = (u64)days * 86400 + hour * 3600 +
+ min * 60 + sec;
+ rtc->rtc_dev->range_max = U32_MAX + rtc->rtc_dev->range_min;
+
ret = devm_request_irq(dev, rtc->rtc_irq, ftrtc010_rtc_interrupt,
IRQF_SHARED, pdev->name, dev);
if (unlikely(ret))