[PATCH 6/6] thunderbolt: Add debug logging of DisplayPort resource allocation
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: 2021-11-25 07:45:47
Subsystem:
the rest, thunderbolt driver · Maintainers:
Linus Torvalds, Andreas Noever, Mika Westerberg, Yehezkel Bernat
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 {
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2.33.0