diff options
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 64dd22e1f5b2..5b0434c140f9 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -2413,10 +2413,19 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work) ret = usb4_dp_port_requested_bandwidth(in); if (ret < 0) { - if (ret == -ENODATA) - tb_port_dbg(in, "no bandwidth request active\n"); - else + if (ret == -ENODATA) { + /* + * There is no request active so this means the + * BW allocation mode was enabled from graphics + * side. At this point we know that the graphics + * driver has read the DRPX capabilities so we + * can offer an better bandwidth estimatation. + */ + tb_port_dbg(in, "DPTX enabled bandwidth allocation mode, updating estimated bandwidth\n"); + tb_recalc_estimated_bandwidth(tb); + } else { tb_port_warn(in, "failed to read requested bandwidth\n"); + } goto put_sw; } requested_bw = ret; |