While PCAP_RTC_DAY_MASK is set to 0x3ffff, it is very unlikely to be
correct as this ends in june 1992, before the product even existed. It is
more likely to be a 14-bit day counter. The next product in the family (the
mc13xxx) has a 15-bit day counter.
The same issue is seen with PCAP_RTC_TOD_MASK which only has 65535 seconds
and falls short of the necessary 86400 seconds.
Signed-off-by: Alexandre Belloni <alexandre.bell...@bootlin.com>
---
drivers/rtc/rtc-pcap.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c
index f176cb9d0dbc..976240853260 100644
--- a/drivers/rtc/rtc-pcap.c
+++ b/drivers/rtc/rtc-pcap.c
@@ -149,11 +149,13 @@ static int __init pcap_rtc_probe(struct platform_device
*pdev)
platform_set_drvdata(pdev, pcap_rtc);
- pcap_rtc->rtc = devm_rtc_device_register(&pdev->dev, "pcap",
- &pcap_rtc_ops, THIS_MODULE);
+ pcap_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
if (IS_ERR(pcap_rtc->rtc))
return PTR_ERR(pcap_rtc->rtc);
+ pcap_rtc->rtc->ops = &pcap_rtc_ops;
+ pcap_rtc->rtc->range_max = (1 << 14) * 86400ULL - 1;
+
timer_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ);
alarm_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA);
@@ -167,7 +169,7 @@ static int __init pcap_rtc_probe(struct platform_device
*pdev)
if (err)
return err;
- return 0;
+ return rtc_register_device(pcap_rtc->rtc);
}
static int __exit pcap_rtc_remove(struct platform_device *pdev)
--
2.20.1
