diff options
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index e299e53473ae..1760c21e5b12 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -568,6 +568,22 @@ static inline struct tb_port *tb_port_at(u64 route, struct tb_switch *sw) return &sw->ports[port]; } +static inline const char *tb_width_name(enum tb_link_width width) +{ + switch (width) { + case TB_LINK_WIDTH_SINGLE: + return "symmetric, single lane"; + case TB_LINK_WIDTH_DUAL: + return "symmetric, dual lanes"; + case TB_LINK_WIDTH_ASYM_TX: + return "asymmetric, 3 transmitters, 1 receiver"; + case TB_LINK_WIDTH_ASYM_RX: + return "asymmetric, 3 receivers, 1 transmitter"; + default: + return "unknown"; + } +} + /** * tb_port_has_remote() - Does the port have switch connected downstream * @port: Port to check |