From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 27 Mar 2020 15:20:31 +0000 (+0200)
Subject: thunderbolt: Initialize TMU again on resume
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8145c4350e1303108a86991d3792eb51e5fdf195;p=linux.git

thunderbolt: Initialize TMU again on resume

The TMU will be reset after router exits sleep so in order to
re-configure it upon resume make sure the structure is initialized again
based on the current hardware state.

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

diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 55ed8bcc60c3a..0d4e4b7902c60 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -2533,6 +2533,10 @@ int tb_switch_resume(struct tb_switch *sw)
 	if (err)
 		return err;
 
+	err = tb_switch_tmu_init(sw);
+	if (err)
+		return err;
+
 	/* check for surviving downstream switches */
 	tb_switch_for_each_port(sw, port) {
 		if (!tb_port_has_remote(port) && !port->xdomain)