From: Alvin Lee <Alvin.Lee2@amd.com>
Date: Tue, 1 Nov 2022 20:10:49 +0000 (-0400)
Subject: drm/amd/display: Don't check output BPP for phantom
X-Git-Tag: io_uring-6.2-2022-12-19~36^2~14^2~56
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=d73aec401fd884a6abe20858cbe95892f796b8d2;p=linux-block.git

drm/amd/display: Don't check output BPP for phantom

[Description]
- If we're enabling phantom pipe for a high
  link rate display we could
  fail DML on the phantom pipe since it's
  set to virtual signal
- Therefore don't consider Output BPP for
  phantom pipe

Reviewed-by: Dillon Varone <Dillon.Varone@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@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>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
index 244fd15d24b4..7aaf67b464e0 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c
@@ -2284,7 +2284,7 @@ void dml32_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
 					&& (mode_lib->vba.Output[k] == dm_dp || mode_lib->vba.Output[k] == dm_dp2p0
 							|| mode_lib->vba.Output[k] == dm_edp
 							|| mode_lib->vba.Output[k] == dm_hdmi)
-					&& mode_lib->vba.OutputBppPerState[i][k] == 0) {
+					&& mode_lib->vba.OutputBppPerState[i][k] == 0 && (mode_lib->vba.UsesMALLForPStateChange[k] != dm_use_mall_pstate_change_phantom_pipe)) {
 				mode_lib->vba.LinkCapacitySupport[i] = false;
 			}
 		}