From 90f720d2292f52de51df2307272a8f8cf7ef7134 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Sun, 13 Feb 2022 11:42:23 +0200
Subject: [PATCH] thunderbolt: Add debug logging when lane is enabled/disabled
Git-commit: 90f720d2292f52de51df2307272a8f8cf7ef7134
References: jesc#PEd-531
Patch-mainline: v5.19-rc1
This is useful when debugging possible issues.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/thunderbolt/switch.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index ac87e8b50e52..2d8a0fd3469c 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -693,8 +693,14 @@ static int __tb_port_enable(struct tb_port *port, bool enable)
else
phy |= LANE_ADP_CS_1_LD;
- return tb_port_write(port, &phy, TB_CFG_PORT,
- port->cap_phy + LANE_ADP_CS_1, 1);
+
+ ret = tb_port_write(port, &phy, TB_CFG_PORT,
+ port->cap_phy + LANE_ADP_CS_1, 1);
+ if (ret)
+ return ret;
+
+ tb_port_dbg(port, "lane %sabled\n", enable ? "en" : "dis");
+ return 0;
}
/**
--
2.35.3