From 97b9c006f153fc129fef60fbd91021c8aaf8697f Mon Sep 17 00:00:00 2001 From: Mikita Lipski Date: Thu, 17 Jun 2021 16:17:09 -0400 Subject: [PATCH] drm/amd/display: Prevent Diags from entering S2 [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 Signed-off-by: Mikita Lipski Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c index c636b589d69d..7046da14bb2a 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/vg_clk_mgr.c @@ -114,7 +114,7 @@ void vg_update_clocks(struct clk_mgr *clk_mgr_base, display_count = vg_get_active_display_cnt_wa(dc, context); /* 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 }; idle_info.idle_info.df_request_disabled = 1;