Messages in this thread Patch in this message | | | From | Alexandre Belloni <> | Subject | [PATCH 2/2] rtc: vr41xx: add range | Date | Thu, 17 May 2018 22:47:06 +0200 |
| |
The vr41xx RTC is a 48-bit counter counting at 32.768 kHz, giving a maximum value of 2^(48-15)-1 seconds.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> --- drivers/rtc/rtc-vr41xx.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c index 2f1212a25f7e..70f013e692b0 100644 --- a/drivers/rtc/rtc-vr41xx.c +++ b/drivers/rtc/rtc-vr41xx.c @@ -300,6 +300,8 @@ static int rtc_probe(struct platform_device *pdev) rtc->ops = &vr41xx_rtc_ops; + /* 48-bit counter at 32.768 kHz */ + rtc->range_max = (1ULL << 33) - 1; rtc->max_user_freq = MAX_PERIODIC_RATE; spin_lock_irq(&rtc_lock); -- 2.17.0
| |