linux-kernel - Re: [PATCH v4 3/7] ARM: imx: clean and consolidate imx5 suspend and idle code

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Message-ID: <20120517171444.GC30400@pengutronix.de>
Date:	Thu, 17 May 2012 19:14:44 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Rob Lee <rob.lee@...aro.org>
Cc:	kernel@...gutronix.de, shawn.guo@...aro.org,
	u.kleine-koenig@...gutronix.de, richard.zhao@...escale.com,
	amit.kucheria@...aro.org, daniel.lezcano@...aro.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-dev@...ts.linaro.org, patches@...aro.org, jj@...osbits.net
Subject: Re: [PATCH v4 3/7] ARM: imx: clean and consolidate imx5 suspend and
 idle code

On Thu, May 17, 2012 at 09:34:26AM -0500, Rob Lee wrote:
> On Wed, May 16, 2012 at 12:38 PM, Sascha Hauer <s.hauer@...gutronix.de> wrote:
> > Hi Robert,
> >
> > Overall this looks ok now, some comments inline.
> >
> >> +             return ret;
> >> +
> >> +     if (cpu_is_mx51())
> >> +             suspend_set_ops(&mx5_suspend_ops);
> >
> > Now this is called only in i.MX51 context, so you can skip the cpu_is
> >
> 
> After this patch series this is also called in i.MX53 context.  I'm
> not confident about the i.MX53 suspend/resume and would prefer to
> perform further testing and address issues with it in a separate patch
> series.

In this case there is also the possibility that you add a imx51_pm_init
in which you set the suspend_ops and call imx5_pm_init afterwards. The
cpu_is_macros a kind of deprecated. Instead we settled on calling
functions with the exact SoC name from the (dt-) board files and call
the more generic function from the SoC specific ones.

Sascha

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