drm/amd/display: reject 3D mode based on static debug flag.

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dc.h

@@ -217,7 +217,7 @@ struct dc_debug {
 	bool force_abm_enable;
 	bool disable_hbup_pg;
 	bool disable_dpp_pg;
-	bool stereo_support;
+	bool disable_stereo_support;
 	bool vsr_support;
 };
 struct dc_state;

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c

@@ -428,6 +428,7 @@ static const struct dc_debug debug_defaults_drv = {
 		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
 		.disable_dcc = DCC_ENABLE,
 		.voltage_align_fclk = true,
+		.disable_stereo_support = true,
 		.vsr_support = true,
 };
 

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c

@@ -499,6 +499,9 @@ static bool tgn10_validate_timing(
 		timing->timing_3d_format != TIMING_3D_FORMAT_INBAND_FA)
 		return false;
 
+	if (timing->timing_3d_format != TIMING_3D_FORMAT_NONE &&
+		tg->ctx->dc->debug.disable_stereo_support)
+		return false;
 	/* Temporarily blocking interlacing mode until it's supported */
 	if (timing->flags.INTERLACE == 1)
 		return false;