Re: N900 sleep mode (in 4.5-rc0, if that matters)

Pavel Machek
2016-04-05T13:17:10Z

Hi!

> >
> > Display off, on wifi:
> >
> > 00001fff 48005020 (fa005020) cm_idlest_per blocking bits: 0007e000
> > f7de7ebd 48004a20 (fa004a20) cm_idlest1_core blocking bits: 00218042
> > 0000000d 48004a28 (fa004a28) cm_idlest3_core
> >
> > 00001fff 48005020 (fa005020) cm_idlest_per blocking bits: 0007e000
> > ffde7ebd 48004a20 (fa004a20) cm_idlest1_core blocking bits: 00218042
> >
> > 00001fff 48005020 (fa005020) cm_idlest_per blocking bits: 0007e000
> > ffdffebd 48004a20 (fa004a20) cm_idlest1_core blocking bits: 00200042
> >
> > ..so I believe gadget bits are still set.
>
> Nope, you got PM working now for the USB as it's now ending with 0x42
> instead of 0x62 :) You still have bit 21 blocking, sorry don't
> remember what that one is, but that's in the TRM for idlest1
> register.

Looking more through the registers... GPIO banks seem to be listed in
cm_idlest_per. You mentioned that they should be automatically
controlled? Does that still work when they are exported to the
userspace?

pavel@n900:~$ ls /sys/class/gpio/
export gpio177 gpio73 gpio75 gpiochip128 gpiochip32
gpiochip64 unexport
gpio157 gpio70 gpio74 gpiochip0 gpiochip160 gpiochip494
gpiochip96

Best regards,