Messages in this thread | | | Date | Wed, 16 Aug 2023 18:14:35 +0200 | From | Alexandre Belloni <> | Subject | Re: [PATCH 0/7] rtc: Add support for limited alarm timer offsets |
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On 16/08/2023 08:50:12-0700, Guenter Roeck wrote: > > I'm fine with the series, however, this doesn't solve the issue for RTCs > > that have an absolute limit on the alarm (as opposed to an offset to the > > current time/date). > > > > I thought that is checked by rtc_valid_range() in rtc_set_alarm(). > Am I missing something ? Of course that assumes that the absolute > maximum alarm timeout matches range_max, but I didn't find any > drivers where that would not be the case. >
There are RTCs where this is not the case. When this is far away in the future enough, the usual solution is to clip range_max which works but is not really great intellectually.
-- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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