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drm/i915: fix guest virtual PCH detection on non-PCH systems 

Virtualized non-PCH systems such as Broxton or Geminilake should use
PCH_NONE to indicate no PCH rather than PCH_NOP. The latter is a
specific case to indicate a PCH system without south display.

Reported-by: Colin Xu <Colin.Xu@intel.com>
Cc: Colin Xu <Colin.Xu@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Colin Xu <Colin.Xu@intel.com>
Reviewed-by: Colin Xu <Colin.Xu@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180608123330.31003-2-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2018-06-08 15:33:26 +03:00
parent eed2890374
commit 78ef3faff9
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
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@ -289,7 +289,7 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv)
if (WARN_ON(pch_type == PCH_NONE))
pch_type = PCH_NOP;
} else {
pch_type = PCH_NOP;
pch_type = PCH_NONE;
}
dev_priv->pch_type = pch_type;
dev_priv->pch_id = id;