diff options
Diffstat (limited to 'drivers/thunderbolt/tb.c')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 8e9fdc4e0650..9853f6c7e81d 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -118,6 +118,13 @@ static void tb_switch_discover_tunnels(struct tb_switch *sw, switch (port->config.type) { case TB_TYPE_DP_HDMI_IN: tunnel = tb_tunnel_discover_dp(tb, port, alloc_hopids); + /* + * In case of DP tunnel exists, change host router's + * 1st children TMU mode to HiFi for CL0s to work. + */ + if (tunnel) + tb_switch_enable_tmu_1st_child(tb->root_switch, + TB_SWITCH_TMU_RATE_HIFI); break; case TB_TYPE_PCIE_DOWN: @@ -979,6 +986,12 @@ static void tb_tunnel_dp(struct tb *tb) list_add_tail(&tunnel->list, &tcm->tunnel_list); tb_reclaim_usb3_bandwidth(tb, in, out); + /* + * In case of DP tunnel exists, change host router's 1st children + * TMU mode to HiFi for CL0s to work. + */ + tb_switch_enable_tmu_1st_child(tb->root_switch, TB_SWITCH_TMU_RATE_HIFI); + return; err_free: |