diff options
| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2020-03-05 17:04:51 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2020-03-16 11:12:09 +0100 |
| commit | cd65dd4180df66f5b469e2a52caae3bfe38d5526 (patch) | |
| tree | 3fad5fb24ebf324145589223bc79ed79889de929 /drivers/rtc | |
| parent | rtc: sirfsoc: convert to devm_rtc_allocate_device (diff) | |
| download | linux-cd65dd4180df66f5b469e2a52caae3bfe38d5526.tar.xz linux-cd65dd4180df66f5b469e2a52caae3bfe38d5526.zip | |
rtc: sirfsoc: set range
This RTC is a 32bit counter running at 16Hz. This overflows every eight
years and a half. However, the driver uses the SW_VALUE register to store
the overflow, extending the counter to 64bit as long as the update happens
before the overflow.
Link: https://lore.kernel.org/r/20200305160452.27808-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-sirfsoc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c index b2e72597eee8..8b3c88fb9793 100644 --- a/drivers/rtc/rtc-sirfsoc.c +++ b/drivers/rtc/rtc-sirfsoc.c @@ -346,6 +346,7 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev) return PTR_ERR(rtcdrv->rtc); rtcdrv->rtc->ops = &sirfsoc_rtc_ops; + rtcdrv->rtc->range_max = (1ULL << 60) - 1; rtcdrv->irq = platform_get_irq(pdev, 0); err = devm_request_irq(&pdev->dev, rtcdrv->irq, sirfsoc_rtc_irq_handler, |