Merge branch 'ufs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[karo-tx-linux.git] / drivers / gpu / drm / i915 / intel_dp_mst.c

diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index c1f62eb07c07a7ce49b3ed39e1e6ee2b23eb65e8..989e25577ac0445f9e7632a575a6de38d7f9ec49 100644 (file)
--- 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;
@@ -75,7 +77,8 @@ 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;