[Intel-gfx] [PATCH 2/4] Revert "drm/amd/display: assign edid_blob_ptr with edid from debugfs"

Jani Nikula jani.nikula at intel.com
Tue Aug 22 12:01:38 UTC 2023


This reverts commit 550e5d23f14784e2a625c25fe0c9d498589c9256.

drm_edid_override_connector_update() is *not* supposed to be used by
drivers directly.

>From the documentation:

  Only to be used from drm_helper_probe_single_connector_modes() as a
  fallback for when DDC probe failed during drm_get_edid() and caused
  the override/firmware EDID to be skipped.

It's impossible to unify firmare and override EDID handling and property
updates if drivers mess with this directly.

Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Alex Hung <alex.hung at amd.com>
Cc: Chao-kai Wang <Stylon.Wang at amd.com>
Cc: Daniel Wheeler <daniel.wheeler at amd.com>
Cc: Harry Wentland <harry.wentland at amd.com>
Cc: Hersen Wu <hersenxs.wu at amd.com>
Cc: Leo Li <sunpeng.li at amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Cc: Wenchieh Chien <wenchieh.chien at amd.com>
Cc: David Airlie <airlied at gmail.com>
Cc: Daniel Vetter <daniel at ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c   | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

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 3e132438bc13..c7c1260b7b6e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6370,20 +6370,11 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
 	struct edid *edid;
 
 	if (!aconnector->base.edid_blob_ptr) {
-		/* if connector->edid_override valid, pass
-		 * it to edid_override to edid_blob_ptr
-		 */
-		int count;
-
-		count = drm_edid_override_connector_update(&aconnector->base);
-
-		if (!aconnector->base.edid_blob_ptr) {
-			DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n",
-					aconnector->base.name);
+		DRM_ERROR("No EDID firmware found on connector: %s ,forcing to OFF!\n",
+				aconnector->base.name);
 
-			aconnector->base.force = DRM_FORCE_OFF;
-			return;
-		}
+		aconnector->base.force = DRM_FORCE_OFF;
+		return;
 	}
 
 	edid = (struct edid *) aconnector->base.edid_blob_ptr->data;
-- 
2.39.2



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