BackMerge tag 'v4.12-rc5' into drm-next

Linux 4.12-rc5 for nouveau fixes

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 3715386e4272..2cf046beae0f 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -44,6 +44,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
         int lane_count, slots;
         const struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
         int mst_pbn;
+        bool reduce_m_n = drm_dp_has_quirk(&intel_dp->desc,
+                                           DP_DPCD_QUIRK_LIMITED_M_N);
 
         pipe_config->has_pch_encoder = false;
         bpp = 24;
@@ -80,7 +82,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
         intel_link_compute_m_n(bpp, lane_count,
                                adjusted_mode->crtc_clock,
                                pipe_config->port_clock,
-                               &pipe_config->dp_m_n);
+                               &pipe_config->dp_m_n,
+                               reduce_m_n);
 
         pipe_config->dp_m_n.tu = slots;