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drm/i915: Make sure we don't detect eDP on g4x

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We don't support eDP on g4x, so let's not even look at the VBT
to determine the port type, just in case the VBT is bonkers
on some g4x machines and indicates the precense of eDP.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2015-09-11 21:04:38 +03:00 committed by Daniel Vetter
parent 0706f17c30
commit 53ce81a761
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/i915/intel_dp.c
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@ -5255,6 +5255,13 @@ bool intel_dp_is_edp(struct drm_device *dev, enum port port)
[PORT_E] = DVO_PORT_DPE,
};
/*
* eDP not supported on g4x. so bail out early just
* for a bit extra safety in case the VBT is bonkers.
*/
if (INTEL_INFO(dev)->gen < 5)
return false;
if (port == PORT_A)
return true;