2018-05-21 20:50:43

by Alexandre Belloni

Subject: [PATCH v2] rtc: st-lpc: add range

The RTC has a 64 bit counter.

Signed-off-by: Alexandre Belloni <[email protected]>
---
drivers/rtc/rtc-st-lpc.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c
index 2f1ef2c28740..bee75ca7ff79 100644
--- a/drivers/rtc/rtc-st-lpc.c
+++ b/drivers/rtc/rtc-st-lpc.c
@@ -258,6 +258,8 @@ static int st_rtc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, rtc);

rtc->rtc_dev->ops = &st_rtc_ops;
+ rtc->rtc_dev->range_max = U64_MAX;
+ do_div(rtc->rtc_dev->range_max, rtc->clkrate);

ret = rtc_register_device(rtc->rtc_dev);
if (ret) {
--
2.17.0

2018-05-23 07:26:03

by Patrice CHOTARD

Subject: Re: [PATCH v2] rtc: st-lpc: add range

Hi Alexandre

On 05/21/2018 10:49 PM, Alexandre Belloni wrote:
> The RTC has a 64 bit counter.
>
> Signed-off-by: Alexandre Belloni <[email protected]>
> ---
> drivers/rtc/rtc-st-lpc.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c
> index 2f1ef2c28740..bee75ca7ff79 100644
> --- a/drivers/rtc/rtc-st-lpc.c
> +++ b/drivers/rtc/rtc-st-lpc.c
> @@ -258,6 +258,8 @@ static int st_rtc_probe(struct platform_device *pdev)
> platform_set_drvdata(pdev, rtc);
>
> rtc->rtc_dev->ops = &st_rtc_ops;
> + rtc->rtc_dev->range_max = U64_MAX;
> + do_div(rtc->rtc_dev->range_max, rtc->clkrate);
>
> ret = rtc_register_device(rtc->rtc_dev);
> if (ret) {
>

Acked-by: Patrice Chotard <[email protected]>

Patrice