drm/amd/display: Split pipe for stereo timings

[Why & How]
DML2 did not carry over DML1 logic that splits pipe for stero timings. Pipe
splitting is needed in this case to pass stereo tests.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Qingqing Zhuo <Qingqing.Zhuo@amd.com>
Signed-off-by: Taimur Hassan <syed.hassan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
index 8da145fd4d7baedf58fc14fa0459237a2586e1c7..116b78a5107cbca4110f6c0e1ba11fb33155cbc2 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c
@@ -708,6 +708,17 @@ bool dml2_map_dc_pipes(struct dml2_context *ctx, struct dc_state *state, const s
                                        // If ODM combine is not inuse, then the number of pipes
                                        // per plane is determined by MPC combine factor
                                        scratch.mpc_info.mpc_factor = DPPPerSurface[plane_disp_cfg_index];
+
+                                       //For stereo timings, we need to pipe split
+                                       if ((state->streams[stream_index]->view_format ==
+                                                       VIEW_3D_FORMAT_SIDE_BY_SIDE ||
+                                                       state->streams[stream_index]->view_format ==
+                                                       VIEW_3D_FORMAT_TOP_AND_BOTTOM) &&
+                                                       (state->streams[stream_index]->timing.timing_3d_format ==
+                                                       TIMING_3D_FORMAT_TOP_AND_BOTTOM ||
+                                                       state->streams[stream_index]->timing.timing_3d_format ==
+                                                       TIMING_3D_FORMAT_SIDE_BY_SIDE))
+                                               scratch.mpc_info.mpc_factor = 2;
                                } else {
                                        // If ODM combine is enabled, then we use at most 1 pipe per
                                        // odm slice per plane, i.e. MPC combine is never used