[Intel-gfx] [PATCH 2/7] drm/i915/dp: Zero the DPCD data before connection probe

Adam Jackson ajax at redhat.com
Tue Jul 12 23:38:00 CEST 2011


Signed-off-by: Adam Jackson <ajax at redhat.com>
---
 drivers/gpu/drm/i915/intel_dp.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e2aced6..de24f31 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1673,6 +1673,7 @@ intel_dp_detect(struct drm_connector *connector, bool force)
 	struct edid *edid = NULL;
 
 	intel_dp->has_audio = false;
+	memset(intel_dp->dpcd, 0, sizeof(intel_dp->dpcd));
 
 	if (HAS_PCH_SPLIT(dev))
 		status = ironlake_dp_detect(intel_dp);
-- 
1.7.6




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