From: Mikita Lipski <[email protected]> commit 7bfc1fec1af3e2f0194843855b0d49054fa42fd2 upstream.
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 <[email protected]> Signed-off-by: Lyude Paul <[email protected]> Fixes: cd82d82cbc04 ("drm/dp_mst: Add branch bandwidth validation to MST atomic check") Cc: <[email protected]> # v5.6+ Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/drm_dp_mst_topology.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -4290,6 +4290,7 @@ int drm_dp_atomic_release_vcpi_slots(str if (pos->vcpi) { drm_dp_mst_put_port_malloc(port); pos->vcpi = 0; + pos->pbn = 0; } return 0;
