summaryrefslogtreecommitdiffstats
path: root/drivers/thunderbolt
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/thunderbolt')
-rw-r--r--drivers/thunderbolt/cap.c11
-rw-r--r--drivers/thunderbolt/tb.h1
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/thunderbolt/cap.c b/drivers/thunderbolt/cap.c
index fdd77bb4628d..19db6cdc5b70 100644
--- a/drivers/thunderbolt/cap.c
+++ b/drivers/thunderbolt/cap.c
@@ -113,7 +113,16 @@ int tb_port_find_cap(struct tb_port *port, enum tb_port_cap cap)
return ret;
}
-static int tb_switch_find_cap(struct tb_switch *sw, enum tb_switch_cap cap)
+/**
+ * tb_switch_find_cap() - Find switch capability
+ * @sw Switch to find the capability for
+ * @cap: Capability to look
+ *
+ * Returns offset to start of capability or %-ENOENT if no such
+ * capability was found. Negative errno is returned if there was an
+ * error.
+ */
+int tb_switch_find_cap(struct tb_switch *sw, enum tb_switch_cap cap)
{
int offset = sw->config.first_cap_offset;
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 0158f0e9858c..28dd0e0b1579 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -685,6 +685,7 @@ struct tb_port *tb_next_port_on_path(struct tb_port *start, struct tb_port *end,
struct tb_port *prev);
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);
bool tb_port_is_enabled(struct tb_port *port);