diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c index f913daabcca5aa2db110969e27522e476d8adeca..92d87745d933937806bf2a1fd27552cfe1059f8b 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c @@ -2984,6 +2984,7 @@ int dcn32_populate_dml_pipes_from_context( int i, pipe_cnt; struct resource_context *res_ctx = &context->res_ctx; struct pipe_ctx *pipe; + bool subvp_in_use = false; dcn20_populate_dml_pipes_from_context(dc, context, pipes, fast_validate); @@ -3006,6 +3007,7 @@ int dcn32_populate_dml_pipes_from_context( switch (pipe->stream->mall_stream_config.type) { case SUBVP_MAIN: pipes[pipe_cnt].pipe.src.use_mall_for_pstate_change = dm_use_mall_pstate_change_sub_viewport; + subvp_in_use = true; break; case SUBVP_PHANTOM: pipes[pipe_cnt].pipe.src.use_mall_for_pstate_change = dm_use_mall_pstate_change_phantom_pipe; @@ -3076,6 +3078,14 @@ int dcn32_populate_dml_pipes_from_context( dcn32_update_det_override_for_mpo(dc, context, pipes); + // In general cases we want to keep the dram clock change requirement + // (prefer configs that support MCLK switch). Only override to false + // for SubVP + if (subvp_in_use) + context->bw_ctx.dml.soc.dram_clock_change_requirement_final = false; + else + context->bw_ctx.dml.soc.dram_clock_change_requirement_final = true; + return pipe_cnt; }