Пятница, 17 января 2014, 17:52 +01:00 от Arnd Bergmann <arnd@arndb.de>:
> On Wednesday 15 January 2014, Feng Kan wrote:
> > +static int __init xgene_reboot_init(void)
> >  {
> >         arm_pm_restart = xgene_restart;
> >         return 0;
> >  }
> >  device_initcall(xgene_reboot_init);
> 
> This won't work on a generic kernel, since you unconditionally set the
> pm_restart function to your own, which is broken for everything else.
> 
> Please keep the platform_driver to attach to the reboot device
> as you had before. It might be good to turn this into a generic
> "syscon-reset" driver that gets both the register number and
> the contents to write from the device node.

I am not sure but think the new driver for SYSCON GPIOs can be
reused for such purpose:
http://www.spinics.net/lists/devicetree/msg18221.html

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