diff options
| author | Mikita Lipski <mikita.lipski@amd.com> | 2020-04-07 12:07:17 -0400 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2020-04-17 18:25:28 -0400 |
| commit | 7bfc1fec1af3e2f0194843855b0d49054fa42fd2 (patch) | |
| tree | 3a43d0674bcdf95bdcab62ff38e784ceb39103a7 | |
| parent | 8623b5255ae7ccaf276aac3920787bf575fa6b37 (diff) | |
| download | linux-stable-7bfc1fec1af3e2f0194843855b0d49054fa42fd2.tar.gz linux-stable-7bfc1fec1af3e2f0194843855b0d49054fa42fd2.tar.bz2 linux-stable-7bfc1fec1af3e2f0194843855b0d49054fa42fd2.zip | |
drm/dp_mst: Zero assigned PBN when releasing VCPI slots
Zero Port's PBN together with VCPI slots when releasing
allocated VCPI slots. That way when disabling the connector
it will not cause issues in drm_dp_mst_atomic_check verifying
branch bw limit.
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: cd82d82cbc04 ("drm/dp_mst: Add branch bandwidth validation to MST atomic check")
Cc: <stable@vger.kernel.org> # v5.6+
Link: https://patchwork.freedesktop.org/patch/msgid/20200407160717.27976-1-mikita.lipski@amd.com
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 70c4b7afed12..283615e44838 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -4295,6 +4295,7 @@ int drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state, if (pos->vcpi) { drm_dp_mst_put_port_malloc(port); pos->vcpi = 0; + pos->pbn = 0; } return 0; |