[PATCH v3 2/5] ARM: pm: add generic CPU suspend/resume support

[santosh.shilimkar@ti.com (Santosh Shilimkar)]

> -----Original Message-----
> From: Russell King - ARM Linux [mailto:linux at arm.linux.org.uk]
> Sent: Saturday, February 12, 2011 8:20 PM
> To: Santosh Shilimkar
> Cc: Colin Cross; Kukjin Kim; saeed bishara; linux-arm-
> kernel at lists.infradead.org
> Subject: Re: [PATCH v3 2/5] ARM: pm: add generic CPU suspend/resume
> support
>
> On Fri, Feb 11, 2011 at 05:37:04PM +0530, Santosh Shilimkar wrote:
> > There is a Monitor secure API, needs to be called from non-secure
> > software to set this diagnostic registers in resume path.
>
> It would be an idea to get the OMAP sleep code up to date so that I
> can
> look at OMAPs requirements for this to be useful.
>
> As the current code stands, I don't see any reason why the sleep34xx
> code
> can't use this infrastructure, but I'm loathed to start modifying
> that if there's outstanding code changes in that area.

Yep. There are few issues out there with sleep34xx code.
	- Secure APIs
	- Current code needs to be cleaned up to remove
	unwanted registers save restore
	- Some part of the code on OMAP3 must be run from
	SRAM. It can't run from DDR
	- AUXCTLR, Diagnostic registers aren't accessible
	in secure mode.
	- L2 cache needs to be handled with secure APIs.
	- Code sequence needs to handle errata's handling
	which accesses OMAP PM registers.

Few of the above are getting addressed for this merge window.

So my plan was to take a look at generic suspend after the
merge window. By that time your generic stuff and omap
cleanup would have got merged hopefully.

Regards,
Santosh