Yikes, it appears somehow I totally made a mistake here. We're currently checking to see if drm_dp_add_payload_part2() returns a non-zero value to indicate success. That's totally wrong though, as this function only returns a zero value on success - not the other way around.
So, fix that. Signed-off-by: Lyude Paul <ly...@redhat.com> Issue: https://gitlab.freedesktop.org/drm/amd/-/issues/2171 Fixes: 4d07b0bc4034 ("drm/display/dp_mst: Move all payload info into the atomic state") --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 b8077fcd4651..00598def5b39 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 @@ -297,7 +297,7 @@ bool dm_helpers_dp_mst_send_payload_allocation( clr_flag = MST_ALLOCATE_NEW_PAYLOAD; } - if (enable && drm_dp_add_payload_part2(mst_mgr, mst_state->base.state, payload)) { + if (enable && drm_dp_add_payload_part2(mst_mgr, mst_state->base.state, payload) == 0) { amdgpu_dm_set_mst_status(&aconnector->mst_status, set_flag, false); } else { -- 2.37.3
