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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: linux-usb@vger.kernel.org
Cc: Yehezkel Bernat <YehezkelShB@gmail.com>,
	Michael Jamet <michael.jamet@intel.com>,
	Gil Fine <gil.fine@intel.com>, Lukas Wunner <lukas@wunner.de>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Andreas Noever <andreas.noever@gmail.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: [PATCH 6/6] thunderbolt: Add debug logging of DisplayPort resource allocation
Date: Thu, 25 Nov 2021 10:37:33 +0300	[thread overview]
Message-ID: <20211125073733.74902-7-mika.westerberg@linux.intel.com> (raw)
In-Reply-To: <20211125073733.74902-1-mika.westerberg@linux.intel.com>

Add more debugging around DP resource allocation/de-allocation.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/thunderbolt/switch.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index e00f4b878b56..13f9230104d7 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -3056,9 +3056,20 @@ bool tb_switch_query_dp_resource(struct tb_switch *sw, struct tb_port *in)
  */
 int tb_switch_alloc_dp_resource(struct tb_switch *sw, struct tb_port *in)
 {
+	int ret;
+
 	if (tb_switch_is_usb4(sw))
-		return usb4_switch_alloc_dp_resource(sw, in);
-	return tb_lc_dp_sink_alloc(sw, in);
+		ret = usb4_switch_alloc_dp_resource(sw, in);
+	else
+		ret = tb_lc_dp_sink_alloc(sw, in);
+
+	if (ret)
+		tb_sw_warn(sw, "failed to allocate DP resource for port %d\n",
+			   in->port);
+	else
+		tb_sw_dbg(sw, "allocated DP resource for port %d\n", in->port);
+
+	return ret;
 }
 
 /**
@@ -3081,6 +3092,8 @@ void tb_switch_dealloc_dp_resource(struct tb_switch *sw, struct tb_port *in)
 	if (ret)
 		tb_sw_warn(sw, "failed to de-allocate DP resource for port %d\n",
 			   in->port);
+	else
+		tb_sw_dbg(sw, "released DP resource for port %d\n", in->port);
 }
 
 struct tb_sw_lookup {
-- 
2.33.0


  parent reply	other threads:[~2021-11-25  7:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-25  7:37 [PATCH 0/6] thunderbolt: Improvements for PM and USB4 compatibility Mika Westerberg
2021-11-25  7:37 ` [PATCH 1/6] thunderbolt: Runtime PM activate both ends of the device link Mika Westerberg
2021-11-26 18:03   ` Rafael J. Wysocki
2021-11-25  7:37 ` [PATCH 2/6] thunderbolt: Tear down existing tunnels when resuming from hibernate Mika Westerberg
2021-11-26 20:01   ` Lukas Wunner
2021-11-29  6:27     ` Mika Westerberg
2021-11-30 18:25       ` Yehezkel Bernat
2021-12-01  6:47         ` Mika Westerberg
2021-12-03 11:39           ` Yehezkel Bernat
2021-11-25  7:37 ` [PATCH 3/6] thunderbolt: Runtime resume USB4 port when retimers are scanned Mika Westerberg
2021-11-25  7:37 ` [PATCH 4/6] thunderbolt: Do not allow subtracting more NFC credits than configured Mika Westerberg
2021-11-25  7:37 ` [PATCH 5/6] thunderbolt: Do not program path HopIDs for USB4 routers Mika Westerberg
2021-11-25  7:37 ` Mika Westerberg [this message]
2021-12-07 12:22 ` [PATCH 0/6] thunderbolt: Improvements for PM and USB4 compatibility Mika Westerberg

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