[PATCH v3 1/5] rtc: OMAP: Add system pm_power_off to rtc driver

[Bedia, Vaibhav]

On Thu, Nov 22, 2012 at 11:17:02, AnilKumar, Chimata wrote:
> +Andrew Morton
> 
> On Tue, Nov 20, 2012 at 15:18:43, AnilKumar, Chimata wrote:
> > From: Colin Foe-Parker <colin.foeparker at logicpd.com>
> > 
> > Add system power off control to rtc driver which is the in-charge
> > of controlling the BeagleBone system power. The power_off routine
> > can be hooked up to "pm_power_off" system call.
> > 
> > System power off sequence:-
> > * Set PMIC STATUS_OFF when PMIC_POWER_EN is pulled low
> > * Enable PMIC_POWER_EN in rtc module
> > * Set rtc ALARM2 time
> > * Enable ALARM2 interrupt
> > 
> > Added while (1); after the above steps to make sure that no other
> > process acquire cpu. Otherwise we might see an unexpected behaviour
> > because we are shutting down all the power rails of SoC except RTC.
> 

Reviewed-by: Vaibhav Bedia <vaibhav.bedia at ti.com>