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authorSanath S <Sanath.S@amd.com>2024-01-13 12:42:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-04-27 18:11:35 +0300
commitdc32d754d7cc660502f093669970ef3f7b0764b3 (patch)
tree4d927ebada4fa81a0bb66911fb30b9ebe360ef8d /drivers/thunderbolt/path.c
parent6c24584aface38f4585ba3ee4de84aa1b00778f3 (diff)
downloadlinux-dc32d754d7cc660502f093669970ef3f7b0764b3.tar.xz
thunderbolt: Introduce tb_path_deactivate_hop()
commit b35c1d7b11da8c08b14147bbe87c2c92f7a83f8b upstream. This function can be used to clear path config space of an adapter. Make it available for other files in this driver. Signed-off-by: Sanath S <Sanath.S@amd.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt/path.c')
-rw-r--r--drivers/thunderbolt/path.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/thunderbolt/path.c b/drivers/thunderbolt/path.c
index ee03fd75a472..17f7647e6a72 100644
--- a/drivers/thunderbolt/path.c
+++ b/drivers/thunderbolt/path.c
@@ -446,6 +446,19 @@ static int __tb_path_deactivate_hop(struct tb_port *port, int hop_index,
return -ETIMEDOUT;
}
+/**
+ * tb_path_deactivate_hop() - Deactivate one path in path config space
+ * @port: Lane or protocol adapter
+ * @hop_index: HopID of the path to be cleared
+ *
+ * This deactivates or clears a single path config space entry at
+ * @hop_index. Returns %0 in success and negative errno otherwise.
+ */
+int tb_path_deactivate_hop(struct tb_port *port, int hop_index)
+{
+ return __tb_path_deactivate_hop(port, hop_index, true);
+}
+
static void __tb_path_deactivate_hops(struct tb_path *path, int first_hop)
{
int i, res;