2017-06-20 15:41 GMT+02:00 Steve Twiss <stwiss.opensou...@diasemi.com>:
> Hi Benjamin,
>
> On 20 June 2017 10:35, Benjamin Gaignard wrote:
>
>> Subject: [PATCH 14/51] rtc: da9063: stop using rtc deprecated functions
>
> Probably this subject should be "rtc: da9052" not 63.
yes you are right this patch is for da9052
>
>> rtc_time_to_tm() and rtc_tm_to_time() are deprecated because they
>> rely on 32bits variables and that will make rtc break in y2038/2016.
>> Stop using those two functions to safer 64bits ones.
>>
> [...]
>
>> ---
>> drivers/rtc/rtc-da9052.c | 8 +++-----
>> 1 file changed, 3 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/rtc/rtc-da9052.c b/drivers/rtc/rtc-da9052.c
>> index 4273377..99a0489 100644
>> --- a/drivers/rtc/rtc-da9052.c
>> +++ b/drivers/rtc/rtc-da9052.c
>> @@ -104,17 +104,15 @@ static int da9052_read_alarm(struct da9052_rtc
>> *rtc, struct rtc_time *rtc_tm)
>> static int da9052_set_alarm(struct da9052_rtc *rtc, struct rtc_time *rtc_tm)
>> {
>> struct da9052 *da9052 = rtc->da9052;
>> - unsigned long alm_time;
>> + unsigned long long alm_time;
>> int ret;
>> uint8_t v[3];
>>
>> - ret = rtc_tm_to_time(rtc_tm, &alm_time);
>> - if (ret != 0)
>> - return ret;
>> + alm_time = rtc_tm_to_time64(rtc_tm);
>
> But they kind of use the same functions anyway.
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/rtc.h?h=v4.12-rc6#n35
> And I think they they are abstracted on purpose.
>
> The DA9052/53 hardware can only handle alarms up to the end of 2063.
That is the hardware limits but I don't know if we should align
framework functions to
for each driver limitation or use 64 bits functions everywhere.
but this discussion is on going on another thread...
>
> Regards,
> Steve
>
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