[PATCH] drm/i915/dp: Update dfp caps only if its a branch device

[Ankit Nautiyal]

Avoid checking for Downstream Facing Port capabilities,
if its not a DP branch device.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 3b2482bf683f..bef797b63000 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5502,6 +5502,9 @@ intel_dp_update_dfp(struct intel_dp *intel_dp,
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	struct intel_connector *connector = intel_dp->attached_connector;
 
+	if (!drm_dp_is_branch(intel_dp->dpcd))
+		return;
+
 	intel_dp->dfp.max_bpc =
 		drm_dp_downstream_max_bpc(intel_dp->dpcd,
 					  intel_dp->downstream_ports, drm_edid);
-- 
2.40.1