drm/amdgpu: remove amdgpu_connector_edid() and stop using edid_blob_ptr

amdgpu_connector_edid() copies the EDID from edid_blob_ptr as a side
effect if amdgpu_connector->edid isn't initialized. However, everywhere
that the returned EDID is used, the EDID should have been set
beforehands.

Only the drm EDID code should look at the EDID property, anyway, so stop
using it.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Pan
Cc: amd-gfx@lists.freedesktop.org
Reviewed-by: Robert Foss <rfoss@kernel.org>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1463862965d76e9458551598fd4d287a08d3d264.1715353572.git.jani.nikula@intel.comSigned-off-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c

@@ -246,22 +246,6 @@ amdgpu_connector_find_encoder(struct drm_connector *connector,
 	return NULL;
 }
 
-struct edid *amdgpu_connector_edid(struct drm_connector *connector)
-{
-	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
-	struct drm_property_blob *edid_blob = connector->edid_blob_ptr;
-
-	if (amdgpu_connector->edid) {
-		return amdgpu_connector->edid;
-	} else if (edid_blob) {
-		struct edid *edid = kmemdup(edid_blob->data, edid_blob->length, GFP_KERNEL);
-
-		if (edid)
-			amdgpu_connector->edid = edid;
-	}
-	return amdgpu_connector->edid;
-}
-
 static struct edid *
 amdgpu_connector_get_hardcoded_edid(struct amdgpu_device *adev)
 {

drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.h

@@ -24,7 +24,6 @@
 #ifndef __AMDGPU_CONNECTORS_H__
 #define __AMDGPU_CONNECTORS_H__
 
-struct edid *amdgpu_connector_edid(struct drm_connector *connector);
 void amdgpu_connector_hotplug(struct drm_connector *connector);
 int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector);
 u16 amdgpu_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector);

drivers/gpu/drm/amd/amdgpu/dce_v10_0.c

@@ -1299,7 +1299,7 @@ static void dce_v10_0_audio_write_speaker_allocation(struct drm_encoder *encoder
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector), &sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid, &sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
 		sad_count = 0;
@@ -1369,7 +1369,7 @@ static void dce_v10_0_audio_write_sad_regs(struct drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)

drivers/gpu/drm/amd/amdgpu/dce_v11_0.c

@@ -1331,7 +1331,7 @@ static void dce_v11_0_audio_write_speaker_allocation(struct drm_encoder *encoder
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector), &sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid, &sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
 		sad_count = 0;
@@ -1401,7 +1401,7 @@ static void dce_v11_0_audio_write_sad_regs(struct drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)

drivers/gpu/drm/amd/amdgpu/dce_v6_0.c

@@ -1217,7 +1217,7 @@ static void dce_v6_0_audio_write_speaker_allocation(struct drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector), &sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid, &sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
 		sad_count = 0;
@@ -1292,7 +1292,7 @@ static void dce_v6_0_audio_write_sad_regs(struct drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)

drivers/gpu/drm/amd/amdgpu/dce_v8_0.c

@@ -1272,7 +1272,7 @@ static void dce_v8_0_audio_write_speaker_allocation(struct drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector), &sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid, &sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n", sad_count);
 		sad_count = 0;
@@ -1340,7 +1340,7 @@ static void dce_v8_0_audio_write_sad_regs(struct drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)