smsc911x driver - suspend/resume

[Ran Shalit]

Hello,

I try to figure out when the resume function is called in smsc911x driver:
http://lxr.free-electrons.com/source/drivers/net/ethernet/smsc/smsc911x.c
According to datasheet
http://ww1.microchip.com/downloads/en/DeviceDoc/9220.pdf
There is the following sequence:
1. host set mode to D1 (sleep, WOL)
2. smsc wakes and through PME interrupt
3. host should set mode to D0 (in order to get to normal operation).

I see that resume is doing stage (3) above, but I don't see how (2) is
done, is it that resume is automatically called whenever there is
interrupt ?

Thank you,
Ran
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