diff options
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index 6ff3e9624301..f81e7cf53d69 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -1094,8 +1094,9 @@ static int tb_configure_asym(struct tb *tb, struct tb_port *src_port, clx = tb_disable_clx(sw); tb_for_each_upstream_port_on_path(src_port, dst_port, up) { + struct tb_port *down = tb_switch_downstream_port(up->sw); + enum tb_link_width width_up, width_down; int consumed_up, consumed_down; - enum tb_link_width width; ret = tb_consumed_dp_bandwidth(tb, src_port, dst_port, up, &consumed_up, &consumed_down); @@ -1116,7 +1117,8 @@ static int tb_configure_asym(struct tb *tb, struct tb_port *src_port, if (consumed_down + requested_down < asym_threshold) continue; - width = TB_LINK_WIDTH_ASYM_RX; + width_up = TB_LINK_WIDTH_ASYM_RX; + width_down = TB_LINK_WIDTH_ASYM_TX; } else { /* Upstream, the opposite of above */ if (consumed_down + requested_down >= TB_ASYM_MIN) { @@ -1126,13 +1128,15 @@ static int tb_configure_asym(struct tb *tb, struct tb_port *src_port, if (consumed_up + requested_up < asym_threshold) continue; - width = TB_LINK_WIDTH_ASYM_TX; + width_up = TB_LINK_WIDTH_ASYM_TX; + width_down = TB_LINK_WIDTH_ASYM_RX; } - if (up->sw->link_width == width) + if (up->sw->link_width == width_up) continue; - if (!tb_port_width_supported(up, width)) + if (!tb_port_width_supported(up, width_up) || + !tb_port_width_supported(down, width_down)) continue; tb_sw_dbg(up->sw, "configuring asymmetric link\n"); @@ -1141,7 +1145,7 @@ static int tb_configure_asym(struct tb *tb, struct tb_port *src_port, * Here requested + consumed > threshold so we need to * transtion the link into asymmetric now. */ - ret = tb_switch_set_link_width(up->sw, width); + ret = tb_switch_set_link_width(up->sw, width_up); if (ret) { tb_sw_warn(up->sw, "failed to set link width\n"); break; |