linux-kernel - Re: [PATCH v2 0/9] CPU enable method based SMP/hotplug + MSM conversion

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Message-ID: <20140108152049.GD11753@e106331-lin.cambridge.arm.com>
Date:	Wed, 8 Jan 2014 15:20:49 +0000
From:	Mark Rutland <mark.rutland@....com>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Russell King <linux@....linux.org.uk>,
	David Brown <davidb@...eaurora.org>,
	Rohit Vaswani <rvaswani@...eaurora.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH v2 0/9] CPU enable method based SMP/hotplug + MSM
 conversion

Hi Stephen,

On Mon, Jan 06, 2014 at 10:19:11PM +0000, Stephen Boyd wrote:
> Ping? Can anyone take a look at the generic ARM and DT binding patches
> and provide acks/reviews? I'd like to send this through arm-soc via the
> MSM tree if possible.

Apologies for the delay. It's taking a while to warm up after christmas.

> 
> On 12/23/13 16:39, Stephen Boyd wrote:
> > This is a rework of patches sent a months back by Rohit[1].
> > The goal of these patches is to add support for SMP and (basic)
> > hotplug on MSM based SoCs. To get there, we add support for a
> > generic way to hook in SMP/hotplug support code based on DT. To
> > show how it's used, we convert the MSM8660 SMP support code over
> > to the new method. After that we add support for the rest of the
> > upstream MSM SoCs (note these patches are piled high on top of
> > Rohit's patches to add 8074 support to MSM[2] and my follow ups[3,4],
> > but this should only matter to the MSM maintainers).
> >
> > This is one of the last items of code that still requires us to have
> > a mach directory and a machine descriptor. We should be able to move
> > the hotplug/smp code out of mach directories if this approach is
> > accepted.

Thanks for doing the rework. This looks really good to me now.

I'd gotten myself confused while reading the bindings, but having now
had a look over the dts files my concerns were invalid.

Hopefully we can move more platforms to use enable-methods now :)

Cheers,
Mark.
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