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drm/amd/display: For ODM seamless transition require AUTO mode

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[Why & How]
ODM seamless transitions require DIV_MODE_AUTO. However,
DIV_MODE_AUTO only works when all the horizontal timing params
are divisible by the ODM combine factor. Therefore, disable the
ODM 2:1 policy when the horizontal timing params are not divisible
by 2.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee
2022-09-01 18:40:32 -04:00
committed by Alex Deucher
parent cc67aae1e3
commit 6349c73859
3 changed files with 26 additions and 1 deletions
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3
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
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@@ -1871,7 +1871,8 @@ int dcn32_populate_dml_pipes_from_context(
timing = &pipe->stream->timing;
pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_dal;
if (context->stream_count == 1 && !dc_is_hdmi_signal(res_ctx->pipe_ctx[i].stream->signal)) {
if (context->stream_count == 1 && !dc_is_hdmi_signal(res_ctx->pipe_ctx[i].stream->signal) &&
is_h_timing_divisible_by_2(res_ctx->pipe_ctx[i].stream)) {
if (dc->debug.enable_single_display_2to1_odm_policy) {
if (!((plane_count > 2) && pipe->top_pipe))
pipes[pipe_cnt].pipe.dest.odm_combine_policy = dm_odm_combine_policy_2to1;