From: jsg <jsg@openbsd.org>
Date: Mon, 11 Dec 2023 05:12:54 +0000 (+0000)
Subject: drm/amd/display: fix ABM disablement
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=b02b58d1987c17931e3fa76db265882d3e7a18cd;p=openbsd

drm/amd/display: fix ABM disablement

From Hamza Mahfooz
7cfc3884a8bb3b77efd035885c758fb33587f1b3 in linux-6.1.y/6.1.66
b9f46f0b98784e40288ee393f863f553fde062fa in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 4074c1c9eac..8f4b44f4344 100644
--- a/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/sys/dev/pci/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6151,7 +6151,7 @@ int amdgpu_dm_connector_atomic_set_property(struct drm_connector *connector,
 		dm_new_state->underscan_enable = val;
 		ret = 0;
 	} else if (property == adev->mode_info.abm_level_property) {
-		dm_new_state->abm_level = val;
+		dm_new_state->abm_level = val ?: ABM_LEVEL_IMMEDIATE_DISABLE;
 		ret = 0;
 	}
 
@@ -6196,7 +6196,8 @@ int amdgpu_dm_connector_atomic_get_property(struct drm_connector *connector,
 		*val = dm_state->underscan_enable;
 		ret = 0;
 	} else if (property == adev->mode_info.abm_level_property) {
-		*val = dm_state->abm_level;
+		*val = (dm_state->abm_level != ABM_LEVEL_IMMEDIATE_DISABLE) ?
+			dm_state->abm_level : 0;
 		ret = 0;
 	}
 
@@ -6276,7 +6277,8 @@ void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
 		state->pbn = 0;
 
 		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
-			state->abm_level = amdgpu_dm_abm_level;
+			state->abm_level = amdgpu_dm_abm_level ?:
+				ABM_LEVEL_IMMEDIATE_DISABLE;
 
 		__drm_atomic_helper_connector_reset(connector, &state->base);
 	}