[PATCH v2, RFC] RTC: PXA: Fix regression of interrupt before ioremap

Petr Cvek [off-list ref] writes:

I was thinking more about setting alarm, ending the OS (and all processes),
powering down DRAM, SRAM etc. and then waiting for alarm (like x86 BIOS alarm)
to restart.

Ah yes, this is a case I have not considered before.
Yet I fail to see what the open/close removal patch fixes.

quoted

Yes, true, yet how do you set on a specific RTC block the alarm if you have many
of them on the system ?

I thought it should be possible with ioctl with appropriate /dev/rtcX opened or /sys/class/rtc/rtcX/wakealarm . 

It seems driver still does not work properly (with reverted patch). For first
run the /sys/class/rtc/rtcX/wakealarm file is not created, but it is created for
next reload of rtc-pxa module. And it seems that it is caused by .can_wakeup
somewhere.

Do you know why, and would you have a patch for that ?

Cheers.

-- 
Robert