drm/amd/display: Fix assert observed when performing dummy p-state check

[WHY]
V.Active dram clock change workaround need a small modification for DMLv2
to ensure that the dummy p-state check doesn't fail.

Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
index 7f9a5621922f..81db8517a690 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c
@@ -222,6 +222,8 @@ static void fetch_socbb_params(struct display_mode_lib *mode_lib)
 	mode_lib->vba.SRExitTime = soc->sr_exit_time_us;
 	mode_lib->vba.SREnterPlusExitTime = soc->sr_enter_plus_exit_time_us;
 	mode_lib->vba.DRAMClockChangeLatency = soc->dram_clock_change_latency_us;
+	mode_lib->vba.DummyPStateCheck = soc->dram_clock_change_latency_us == soc->dummy_pstate_latency_us;
+
 	mode_lib->vba.Downspreading = soc->downspread_percent;
 	mode_lib->vba.DRAMChannelWidth = soc->dram_channel_width_bytes;   // new!
 	mode_lib->vba.FabricDatapathToDCNDataReturn = soc->fabric_datapath_to_dcn_data_return_bytes; // new!