linux-kernel - RE: [PATCH RFC] davinci: poll for sleep completion in resume routine.

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Date:	Thu, 31 Jan 2013 10:11:30 +0000
From:	"Vishwanathrao Badarkhe, Manish" <manishv.b@...com>
To:	"Nori, Sekhar" <nsekhar@...com>
CC:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"davinci-linux-open-source@...ux.davincidsp.com" 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"khilman@...prootsystems.com" <khilman@...prootsystems.com>
Subject: RE: [PATCH RFC] davinci: poll for sleep completion in resume
 routine.

Hi Sekhar

On Thu, Jan 31, 2013 at 15:21:42, Nori, Sekhar wrote:
> 
> 
> On 1/31/2013 2:56 PM, Vishwanathrao Badarkhe, Manish wrote:
> > As per OMAP-L138 TRM, Software must poll for SLEEPCOMPLETE bit until 
> > it is set to 1 before clearing SLEEPENABLE bit in DEEPSLEEP register 
> > in resume routine.
> > Modifications are as per datasheet:
> > http://www.ti.com/lit/ug/spruh77a/spruh77a.pdf
> > See sections 10.10.2.2 and 11.5.21 for more detailed explanation.
> > 
> > Tested on da850-evm.
> > 
> > Signed-off-by: Vishwanathrao Badarkhe, Manish <manishv.b@...com>
> 
> Is this a bug fix? Do you see any issue without this patch?

This is not a bug fix. I have not seen any issue without this patch. 
Only, modifications are done as per OMAP-L138 TRM.   

> 
> Thanks,
> Sekhar
> 


Regards, 
Manish