diff options
| -rw-r--r-- | drivers/thunderbolt/tb.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 5b0434c140f9..abd86fd8d71f 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -2406,8 +2406,23 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work) tb_port_dbg(in, "handling bandwidth allocation request\n"); + tunnel = tb_find_tunnel(tb, TB_TUNNEL_DP, in, NULL); + if (!tunnel) { + tb_port_warn(in, "failed to find tunnel\n"); + goto put_sw; + } + if (!usb4_dp_port_bandwidth_mode_enabled(in)) { - tb_port_warn(in, "bandwidth allocation mode not enabled\n"); + if (tunnel->bw_mode) { + /* + * Reset the tunnel back to use the legacy + * allocation. + */ + tunnel->bw_mode = false; + tb_port_dbg(in, "DPTX disabled bandwidth allocation mode\n"); + } else { + tb_port_warn(in, "bandwidth allocation mode not enabled\n"); + } goto put_sw; } @@ -2432,11 +2447,6 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work) tb_port_dbg(in, "requested bandwidth %d Mb/s\n", requested_bw); - tunnel = tb_find_tunnel(tb, TB_TUNNEL_DP, in, NULL); - if (!tunnel) { - tb_port_warn(in, "failed to find tunnel\n"); - goto put_sw; - } out = tunnel->dst_port; |