drm/i915: Only dump dp_m2_n2 configuration when drrs is used

Otherwise it is just an useless empty line.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1479397449-27085-1-git-send-email-tvrtko.ursulin@linux.intel.com

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 58fc78702e2b..0c8c8e5d4bd9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12751,9 +12751,10 @@ static void intel_dump_pipe_config(struct intel_crtc *crtc,
         if (intel_crtc_has_dp_encoder(pipe_config)) {
                 intel_dump_m_n_config(pipe_config, "dp m_n",
                                 pipe_config->lane_count, &pipe_config->dp_m_n);
-                intel_dump_m_n_config(pipe_config, "dp m2_n2",
-                                pipe_config->lane_count,
-                                &pipe_config->dp_m2_n2);
+                if (pipe_config->has_drrs)
+                        intel_dump_m_n_config(pipe_config, "dp m2_n2",
+                                              pipe_config->lane_count,
+                                              &pipe_config->dp_m2_n2);
         }
 
         DRM_DEBUG_KMS("audio: %i, infoframes: %i\n",