[PATCH 1/1] Revert "drm/amd/display: fix bandwidth validation failure on DCN 2.1"

[LIPSKI, IVAN]

[AMD Official Use Only - General]

@Siqueira, Rodrigo<mailto:Rodrigo.Siqueira at amd.com>
________________________________
From: LIPSKI, IVAN <IVAN.LIPSKI at amd.com>
Sent: January 5, 2024 7:40 PM
To: amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>
Cc: rodrigo.siquiera at amd.com <rodrigo.siquiera at amd.com>; Choi, Nicholas <Nicholas.Choi at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>; Koenig, Christian <Christian.Koenig at amd.com>; Wentland, Harry <Harry.Wentland at amd.com>; LIPSKI, IVAN <IVAN.LIPSKI at amd.com>; Melissa Wen <mwen at igalia.com>; Mahfooz, Hamza <Hamza.Mahfooz at amd.com>
Subject: [PATCH 1/1] Revert "drm/amd/display: fix bandwidth validation failure on DCN 2.1"

From: Ivan Lipski <ivlipski at amd.com>

This commit causes dmesg-warn on several IGT tests on DCN 3.1.6:
*ERROR* link_enc_cfg_validate: Invalid link encoder assignments - 0x1c

Affected IGT tests include:
amdgpu/[amd_assr|amd_plane|amd_hotplug]
kms_atomic
kms_color
kms_flip
kms_properties
kms_universal_plane

and some other tests

This reverts commit b7ebd39e2922f642c7ee63ade4a4a5a1ef675d84.

Cc: Melissa Wen <mwen at igalia.com>
Cc: Hamza Mahfooz <hamza.mahfooz at amd.com>

Signed-off-by: Ivan Lipski <ivlipski at amd.com>

---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index d77fc79f3542..111c6f51f0ae 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10752,7 +10752,7 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
                         DRM_DEBUG_DRIVER("drm_dp_mst_atomic_check() failed\n");
                         goto fail;
                 }
-               status = dc_validate_global_state(dc, dm_state->context, false);
+               status = dc_validate_global_state(dc, dm_state->context, true);
                 if (status != DC_OK) {
                         DRM_DEBUG_DRIVER("DC global validation failure: %s (%d)",
                                        dc_status_to_str(status), status);
--
2.34.1

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