Re: [PATCH] drm/i915: no lvds quirk for hp t5740

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On Mon, Apr 15, 2013 at 09:54:56AM +0000, Ben Mesman (Bossers & Cnossen BV) wrote:
> > -----Oorspronkelijk bericht-----
> > Van: 'Chris Wilson' [mailto:chris@xxxxxxxxxxxxxxxxxx]
> > Verzonden: maandag 15 april 2013 11:39
> > Aan: Ben Mesman (Bossers & Cnossen BV)
> > CC: Daniel Vetter; dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > Onderwerp: Re: [PATCH] drm/i915: no lvds quirk for hp t5740
> > 
> > On Mon, Apr 15, 2013 at 06:39:15AM +0000, Ben Mesman (Bossers &
> > Cnossen BV) wrote:
> > > Op vrijdag 12 april 2013 14:47 schreef Chris Wilson:
> > > > On Fri, Apr 12, 2013 at 02:24:43PM +0200, Ben Mesman wrote:
> > > > > Last year, a patch was made for the "HP t5740e Thin Client" (see
> > > > > http://lists.freedesktop.org/archives/dri-devel/2012-
> > May/023245.html).
> > > > > This device reports an lvds panel, but does not really have one.
> > > > >
> > > > > The predecessor of this device is the "hp t5740", which also does
> > > > > not have an lvds panel. This patch will add the same quirk for this
> > device.
> > > > >
> > > > > Signed-off-by: Ben Mesman <ben@xxxxxx>
> > > > > ---
> > > > >  drivers/gpu/drm/i915/intel_lvds.c |    8 ++++++++
> > > > >  1 file changed, 8 insertions(+)
> > > > >
> > > > > diff --git a/drivers/gpu/drm/i915/intel_lvds.c
> > > > > b/drivers/gpu/drm/i915/intel_lvds.c
> > > > > index ca2d903..8a56d9b 100644
> > > > > --- a/drivers/gpu/drm/i915/intel_lvds.c
> > > > > +++ b/drivers/gpu/drm/i915/intel_lvds.c
> > > > > @@ -816,6 +816,14 @@ static const struct dmi_system_id
> > > > > intel_no_lvds[] =
> > > > {
> > > > >  	},
> > > > >  	{
> > > > >  		.callback = intel_no_lvds_dmi_callback,
> > > > > +		.ident = "Hewlett-Packard hp t5740",
> > > > > +		.matches = {
> > > > > +			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-
> > > > Packard"),
> > > > > +			DMI_MATCH(DMI_PRODUCT_NAME, "hp t5740"),
> > > > > +		},
> > > > > +	},
> > > >
> > > > One thing to note is that the dmi matching routine uses strstr (as
> > > > opposed to
> > > > dmi_match() which uses strcmp!) so this rule should encompass the
> > > > following rule for its offspring.
> > >
> > > I am sorry, I don't know what you are asking here. Is there something
> > wrong with this patch?
> > 
> > I meant you could adjust the t5470e rule to also catch t5470:
> 
> Except that strstr is (probably?) not case-insensitive.

Whoops, then drop the "hp" prefix as the board vendor is already
specified.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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