diff options
Diffstat (limited to 'common/recipes-kernel/linux/files/0888-drm-amd-dal-skip-MST-fake-connectors-on-resume.patch')
| -rw-r--r-- | common/recipes-kernel/linux/files/0888-drm-amd-dal-skip-MST-fake-connectors-on-resume.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0888-drm-amd-dal-skip-MST-fake-connectors-on-resume.patch b/common/recipes-kernel/linux/files/0888-drm-amd-dal-skip-MST-fake-connectors-on-resume.patch new file mode 100644 index 00000000..5cd092b4 --- /dev/null +++ b/common/recipes-kernel/linux/files/0888-drm-amd-dal-skip-MST-fake-connectors-on-resume.patch @@ -0,0 +1,43 @@ +From 09ed2790db75c799a013646a1c74a4675157bf71 Mon Sep 17 00:00:00 2001 +From: Mykola Lysenko <Mykola.Lysenko@amd.com> +Date: Tue, 8 Mar 2016 05:17:06 -0500 +Subject: [PATCH 0888/1110] drm/amd/dal: skip MST fake connectors on resume + +This change is needed in order to avoid multiple dc_link_detect +calls on one DP link. + +Also it disables removal of sink from connector hence allow +to restore mode on resume. + +However this is only partial fix. Additional change will be +provided in order to fix topology change + +Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm.c +index a9973ed..5bef63c 100644 +--- a/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dm.c +@@ -587,6 +587,14 @@ int amdgpu_dm_display_resume(struct amdgpu_device *adev ) + list_for_each_entry(connector, + &ddev->mode_config.connector_list, head) { + aconnector = to_amdgpu_connector(connector); ++ ++ /* ++ * this is the case when traversing through already created ++ * MST connectors, should be skipped ++ */ ++ if (aconnector->mst_port) ++ continue; ++ + dc_link_detect(aconnector->dc_link, false); + aconnector->dc_sink = NULL; + amdgpu_dm_update_connector_after_detect(aconnector); +-- +2.7.4 + |