Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next

[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 677d70e4d36340a7046669788c0f5cc82bad48a4..ff8ba55853be1cc6ef924a2c2ab2d15a1001634a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -164,6 +164,11 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder)
                return;
        }
 
+       /* MST encoders are bound to a crtc, not to a connector,
+        * force the mapping here for get_hw_state.
+        */
+       found->encoder = encoder;
+
        DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
        intel_mst->port = found->port;
 
@@ -397,7 +402,7 @@ static const struct drm_encoder_funcs intel_dp_mst_enc_funcs = {
 
 static bool intel_dp_mst_get_hw_state(struct intel_connector *connector)
 {
-       if (connector->encoder) {
+       if (connector->encoder && connector->base.state->crtc) {
                enum pipe pipe;
                if (!connector->encoder->get_hw_state(connector->encoder, &pipe))
                        return false;