linux-kernel - Re: [PATCH] drivers/gpu/drm/gma500:fix build failure for 3.9-rc5

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Date:	Wed, 10 Apr 2013 19:56:06 +0800 (CST)
From:	Xiong Zhou <jencce.kernel@...il.com>
To:	Patrik Jakobsson <patrik.r.jakobsson@...il.com>
cc:	Xiong Zhou <jencce.kernel@...il.com>, airlied@...hat.com,
	alan@...ux.intel.com, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/gpu/drm/gma500:fix build failure for 3.9-rc5



On Tue, 9 Apr 2013, Patrik Jakobsson wrote:

> On Tue, Apr 9, 2013 at 8:35 AM, Xiong Zhou <jencce.kernel@...il.com> wrote:
> > From: Xiong Zhou <jencce.kernel@...il.com>
> >
> > This patch fixes build failure of v3.9-rc5.
> > When config ACPI_VIDEO as m, DRM_GMA500 as y, here comes the failure.
> > gma5/600 needs acpi_video just like nouveau.
> >
> > Failure message:
> > drivers/built-in.o: In function `psb_driver_load':
> > kernel-3.9-rc5/drivers/gpu/drm/gma500/psb_drv.c:340: \
> >         undefined reference to `acpi_video_register'
> > make: *** [vmlinux] Error 1
> >
> > Signed-off-by: Xiong Zhou <jencce.kernel@...il.com>
> > ---
> > drivers/gpu/drm/gma500/Kconfig |    1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
> > index 1188f0f..d64fc45 100644
> > --- a/drivers/gpu/drm/gma500/Kconfig
> > +++ b/drivers/gpu/drm/gma500/Kconfig
> > @@ -6,6 +6,7 @@ config DRM_GMA500
> >          select FB_CFB_IMAGEBLIT
> >          select DRM_KMS_HELPER
> >          select DRM_TTM
> > +        select ACPI_VIDEO if ACPI && X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL && INPUT
> >         help
> >           Say yes for an experimental 2D KMS framebuffer driver for the
> >           Intel GMA500 ('Poulsbo') and other Intel IMG based graphics
> > --
> 
> Hi
> 
> Thanks for catching this, but if I can be picky, I'd prefer if you wrote it
> like i915 does. E.g.
> 
> 	select ACPI_VIDEO if ACPI
> 	select BACKLIGHT_CLASS_DEVICE if ACPI
> 	...
> 
> And you can skip X86 since we already 'depend' on it.
> 
> Thanks
> Patrik
> 

Nice advices, Thanks!


Xiong
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