summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
diff options
context:
space:
mode:
authorHersen Wu <hersenxs.wu@amd.com>2018-02-09 16:35:14 -0500
committerAlex Deucher <alexander.deucher@amd.com>2018-03-05 15:32:20 -0500
commitfd92ac1b4658bd1c9650f720e1094fa29fbfd995 (patch)
tree685993e36ba5370a7ebf9993b3afeff7197e4948 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
parent3126bf79586aa0fcd27422af3bba2d0539ee9e18 (diff)
downloadop-kernel-dev-fd92ac1b4658bd1c9650f720e1094fa29fbfd995.zip
op-kernel-dev-fd92ac1b4658bd1c9650f720e1094fa29fbfd995.tar.gz
drm/amd/display: move MST branch initialize to before link training
some MST capable scaler doesn't like recieving CLEAR_PAYLOAD_ID_TABLE after link training. move branch initialize to before link training Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Signed-off-by: Tony Cheng <tony.cheng@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c')
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 9bd142f..3e157e6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -258,6 +258,15 @@ bool dm_helpers_dp_mst_write_payload_allocation_table(
return true;
}
+
+/*
+ * Clear payload allocation table before enable MST DP link.
+ */
+void dm_helpers_dp_mst_clear_payload_allocation_table(
+ struct dc_context *ctx,
+ const struct dc_link *link)
+{}
+
/*
* Polls for ACT (allocation change trigger) handled and sends
* ALLOCATE_PAYLOAD message.
OpenPOWER on IntegriCloud