diff options
| author |   Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-05-08 12:41:34 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-06-22 19:58:20 +0300 |
| commit | 5b7b8c0af15a376175302fc91c2af06f356821b0 (patch) | |
| tree | cf5664a3aa7d6fbf576b71e2c1f12beb5aa09a30 /drivers/thunderbolt | |
| parent | thunderbolt: Implement USB3 bandwidth negotiation routines (diff) | |
| download | wireguard-linux-5b7b8c0af15a376175302fc91c2af06f356821b0.tar.xz wireguard-linux-5b7b8c0af15a376175302fc91c2af06f356821b0.zip | |
thunderbolt: Make tb_port_get_link_speed() available to other files
We need to call this from tb.c when we improve the bandwidth management
to take USB3 into account.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/switch.c | 8 | ||||
| -rw-r--r-- | drivers/thunderbolt/tb.h | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 29db484d2c74..c01176429d5f 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -911,7 +911,13 @@ struct tb_port *tb_next_port_on_path(struct tb_port *start, struct tb_port *end, return next != prev ? next : NULL; } -static int tb_port_get_link_speed(struct tb_port *port) +/** + * tb_port_get_link_speed() - Get current link speed + * @port: Port to check (USB4 or CIO) + * + * Returns link speed in Gb/s or negative errno in case of failure. + */ +int tb_port_get_link_speed(struct tb_port *port) { u32 val, speed; int ret; diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index cb53a94fe4f8..c6f18200fe92 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -759,6 +759,8 @@ struct tb_port *tb_next_port_on_path(struct tb_port *start, struct tb_port *end, for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ (p) = tb_next_port_on_path((src), (dst), (p))) +int tb_port_get_link_speed(struct tb_port *port); + int tb_switch_find_vse_cap(struct tb_switch *sw, enum tb_switch_vse_cap vsec); int tb_switch_find_cap(struct tb_switch *sw, enum tb_switch_cap cap); int tb_port_find_cap(struct tb_port *port, enum tb_port_cap cap); |