linux-kernel - Re: [PATCH] gpio: omap: fix irq triggering in smart-idle wakeup mode

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Date:	Fri, 15 Apr 2016 08:21:09 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Grygorii Strashko <grygorii.strashko@...com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Santosh Shilimkar <ssantosh@...nel.org>,
	Sekhar Nori <nsekhar@...com>,
	Linux-OMAP <linux-omap@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Roger Quadros <rogerq@...com>
Subject: Re: [PATCH] gpio: omap: fix irq triggering in smart-idle wakeup mode

* Grygorii Strashko <grygorii.strashko@...com> [160415 02:27]:
> On 04/15/2016 11:32 AM, Linus Walleij wrote:
> > On Tue, Apr 12, 2016 at 12:52 PM, Grygorii Strashko
> > <grygorii.strashko@...com> wrote:
> > 
> >> Now GPIO IRQ loss is observed on dra7-evm after suspend/resume cycle
> > (...)
> >> Cc: Roger Quadros <rogerq@...com>
> >> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
> > 
> > Can I get some explicit ACK / Tested-by tags for this patch?
> 
> Roger's promised to test it once suspend regression will be fixed
> for dra7-evm, probably next rc.
> 
> > 
> > Is it a serious regression that will need to go in as a fix and
> > tagged for stable?
> > 
> 
> This issue is here since 2012, so I think it's not very critical -
> It seems bits combination which causing the issue is rare.
> 
> Regarding stable:
> 4.4 - good to have, simple merge conflict
> 4.1 - some merge resolution is required
> older kernel - it will be hard to backport it due to significant
> changes in omap gpio driver
> 
> Santosh, Tony, do you want me to perform any additional actions regarding this patch?

Well maybe update the comments regarding non-interrupt GPIO
lines and wake-up events. Santosh may have other comments.

Regards,

Tony