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drm/amd/display: Prevent Diags from entering S2

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[why]
Lowering clocks when entering S2 Idle state causes DMUB to hang with
Diags.

[how]
Do not enter S2 optimization with Diags on dcn301 to prevent DMUB hang.

Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mikita Lipski
2021-06-17 16:17:09 -04:00
committed by Alex Deucher
parent 23e55639b8
commit 97b9c006f1
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c
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@@ -114,7 +114,7 @@ void vg_update_clocks(struct clk_mgr *clk_mgr_base,
display_count = vg_get_active_display_cnt_wa(dc, context); display_count = vg_get_active_display_cnt_wa(dc, context);
/* if we can go lower, go lower */ /* if we can go lower, go lower */
if (display_count == 0) { if (display_count == 0 && !IS_DIAG_DC(dc->ctx->dce_environment)) {
union display_idle_optimization_u idle_info = { 0 }; union display_idle_optimization_u idle_info = { 0 };
idle_info.idle_info.df_request_disabled = 1; idle_info.idle_info.df_request_disabled = 1;