linux-kernel - Re: [PATCH] DRM / i915: Fix resume regression on MSI Wind U100 w/o KMS

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Message-ID: <20100108171311.128c43d0@jbarnes-piketon>
Date:	Fri, 8 Jan 2010 17:13:11 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Eric Anholt <eric@...olt.net>,
	Zhenyu Wang <zhenyuw@...ux.intel.com>,
	LKML <linux-kernel@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	dri-devel@...ts.sourceforge.net
Subject: Re: [PATCH] DRM / i915: Fix resume regression on MSI Wind U100 w/o
 KMS

On Fri, 8 Jan 2010 16:50:57 -0800 (PST)
Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> 
> 
> On Sat, 9 Jan 2010, Rafael J. Wysocki wrote:
> > 
> > Which is functionally equivalent to my patch, because
> > i915_suspend/resume() won't be called by drm_class_suspend/resume()
> > in the KMS case anyway.
> 
> Ahh, right you are - that class suspend function does a check for 
> DRIVER_MODESET, and only does the suspend/resume if it's not a
> MODESET driver.
> 
> Ok, so I withdraw my objections to your original patch - it's
> confusing, but that's just because DRM is such a horrible mess with
> subtle things.

Yeah the non-KMS paths just suck.

Acked-by: Jesse Barnes <jbarnes@...tuousgeek.org>

Though hopefully you can get the PCI driver registration working w/o
too much trouble; that would be even better.

-- 
Jesse Barnes, Intel Open Source Technology Center
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