thunderbolt: Add helper to check if CL states are enabled on port

We will need this when enabling lane margining support.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 8555ad9d7234..ded1f1d6c12e 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -1035,6 +1035,7 @@ void tb_port_lane_bonding_disable(struct tb_port *port);
 int tb_port_wait_for_link_width(struct tb_port *port, int width,
 				int timeout_msec);
 int tb_port_update_credits(struct tb_port *port);
+bool tb_port_is_clx_enabled(struct tb_port *port, enum tb_clx clx);
 
 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);