From: Mikita Lipski <mikita.lipski@xxxxxxx>
[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@xxxxxxx>
Signed-off-by: Mikita Lipski <mikita.lipski@xxxxxxx>
---
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;
--
2.25.1
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