Re: [PATCH] rtc: imxdi: add wakeup support
From: Martin Kaiser
Date: Wed May 05 2021 - 12:25:36 EST
Hi Alexandre,
thanks for the quick reply.
Thus wrote Alexandre Belloni (alexandre.belloni@xxxxxxxxxxx):
> Doesn't everyone expect the RTC to be a wakeup source? :)
Ok, I'll change this.
> > What is the right approach here? Are there any rtc drivers that act as a
> > wakeup source and can still be unloaded if compiled as a module?
> Yes, when you don't have alarmtimer ;)
> I honestly think the RTC selection needs to be a bit more dynamic but at
> the same time, it would not be great to change it at suspend time. I
> guess the best way would be to allow module unloading and tracking when
> the RTC disappears.
Ok, understood. There's no chance to address this in an rtc driver.
Out of curiousity, I tried adding a .remove_dev function in alarmtimer.
It isn't called when the I try to unload the rtc-imxdi module. It seems
that the module layer checks the refcount and returns an error before we
even attempt to remove the rtc device...
Best regards,
Martin