The ab3100 has a 48bit counter running at 65536 Hz (despite one of the
comment). The max value is then (2^48 - 1)/2^16 == 2^32 - 1.
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
---
drivers/rtc/rtc-ab3100.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/rtc/rtc-ab3100.c b/drivers/rtc/rtc-ab3100.c
index 821ff52a2222..f73a3707b897 100644
--- a/drivers/rtc/rtc-ab3100.c
+++ b/drivers/rtc/rtc-ab3100.c
@@ -228,15 +228,17 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev)
/* Ignore any error on this write */
}
- rtc = devm_rtc_device_register(&pdev->dev, "ab3100-rtc",
- &ab3100_rtc_ops, THIS_MODULE);
- if (IS_ERR(rtc)) {
- err = PTR_ERR(rtc);
- return err;
- }
+ rtc = devm_rtc_allocate_device(&pdev->dev);
+ if (IS_ERR(rtc))
+ return PTR_ERR(rtc);
+
+ rtc->ops = &ab3100_rtc_ops;
+ /* 48bit counter at (AB3100_RTC_CLOCK_RATE * 2) */
+ rtc->range_max = U32_MAX;
+
platform_set_drvdata(pdev, rtc);
- return 0;
+ return rtc_register_device(rtc);
}
static struct platform_driver ab3100_rtc_driver = {
--
2.20.1
