diff options
Diffstat (limited to 'drivers/thunderbolt/tunnel.c')
| -rw-r--r-- | drivers/thunderbolt/tunnel.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/thunderbolt/tunnel.c b/drivers/thunderbolt/tunnel.c index e02b34654d29..cb6609a56a03 100644 --- a/drivers/thunderbolt/tunnel.c +++ b/drivers/thunderbolt/tunnel.c @@ -1184,17 +1184,13 @@ static int tb_dp_consumed_bandwidth(struct tb_tunnel *tunnel, int *consumed_up, /* * Then see if the DPRX negotiation is ready and if yes * return that bandwidth (it may be smaller than the - * reduced one). Otherwise return the remote (possibly - * reduced) caps. + * reduced one). According to VESA spec, the DPRX + * negotiation shall compete in 5 seconds after tunnel + * established. We give it 100ms extra just in case. */ - ret = tb_dp_wait_dprx(tunnel, 150); - if (ret) { - if (ret == -ETIMEDOUT) - ret = tb_dp_read_cap(tunnel, DP_REMOTE_CAP, - &rate, &lanes); - if (ret) - return ret; - } + ret = tb_dp_wait_dprx(tunnel, 5100); + if (ret) + return ret; ret = tb_dp_read_cap(tunnel, DP_COMMON_CAP, &rate, &lanes); if (ret) return ret; |