On 25/03/2019 15:28:26+0000, Joel Stanley wrote: > On Mon, 25 Mar 2019 at 14:59, Alexandre Belloni > <alexandre.belloni@xxxxxxxxxxx> wrote: > > On 26/03/2019 00:01:59+1030, Joel Stanley wrote: > > > + dev_dbg(dev, "%s: %4d-%02d-%02d %02d:%02d:%02d\n", __func__, > > > + 1900 + tm->tm_year, tm->tm_mon + 1, tm->tm_mday, > > > + tm->tm_hour, tm->tm_min, tm->tm_sec); > > > + > > > > We now have %ptR, could you use that? > > I tried this: > > dev_dbg(dev, "%s: %ptR", __func__, tm); > > Yes, that appears to do the job. Can you make the change when applying? > Ok, I'll do that. > > > > > + rtc->rtc_dev->ops = &aspeed_rtc_ops; > > > + rtc->rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_1900; > > > + rtc->rtc_dev->range_max = 38814989399LL; /* 3199-12-31 23:59:59 */ > > > + > > > > I'm curious how many RTC have been properly designed, could you run > > rtc-range? > > > > https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/rtc-tools.git/tree/rtc-range.c > > It appears to pass the test: > > Testing 2000-02-28 23:59:59. > OK > > Testing 2038-01-19 03:14:07. > OK > > Testing 2069-12-31 23:59:59. > OK > > Testing 2099-12-31 23:59:59. > OK > > Testing 2100-02-28 23:59:59. > OK > > Testing 2106-02-07 06:28:15. > OK > > Testing 2262-04-11 23:47:16. > OK > > The qemu model I have for the device failed though. A good test! Are > you going to put it in the kernel tree? > I was planning to add more dates to test and detect when the range is properly reported by the rtc (right now, it reports a failure) before doing so. -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
