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

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / intel_dp.c

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 02401a397dccb31f660a00eb6b2338197e6a14a5..5fe1648cd9c8ee1d2a70e36fa35c2382f06acc5f 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -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;