linux-kernel - Re: [PATCH 2/3] spi: sh-msiof: Convert to spi core auto_runtime

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Message-ID: <2274545.CyQ67zvVqo@avalon>
Date:	Tue, 11 Mar 2014 17:32:26 +0100
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Mark Brown <broonie@...nel.org>,
	linux-spi <linux-spi@...r.kernel.org>,
	Linux-sh list <linux-sh@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Geert Uytterhoeven <geert+renesas@...ux-m68k.org>,
	Magnus Damm <magnus.damm@...il.com>
Subject: Re: [PATCH 2/3] spi: sh-msiof: Convert to spi core auto_runtime_pm framework

On Tuesday 11 March 2014 17:23:37 Geert Uytterhoeven wrote:
> Hi Laurent,
> 
> On Tue, Mar 11, 2014 at 4:55 PM, Laurent Pinchart wrote:
> > Does this require drivers/sh/pm_runtime.c to be compiled in ?
> 
> Let's check...
> 
> My koelsch-legacy kernel has drivers/sh/pm_runtime.c compiled in.
> My koelsch-reference kernel hasn't.
> 
> However, under the -reference kernel many MSTP clocks (incl. MSIOF)
> seem to be enabled all the time, while under -legacy they are enabled and
> disabled on demand.

Is PM_RUNTIME enabled in both cases ?


There's something fishy in there that we should try to fix without too further 
much delay. Ben Dooks has pointed out the problem a couple of months ago, but 
the discussion on the mailing list just died.

-- 
Regards,

Laurent Pinchart

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