From: Gil Fine <gil.fine@xxxxxxxxxxxxxxx>
For USB4 v2 routers, the DisplayPort IN adapter capability length is
longer. Display the correct capability length in the debugfs register
dump.
Signed-off-by: Gil Fine <gil.fine@xxxxxxxxxxxxxxx>
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
---
drivers/thunderbolt/debugfs.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c
index 48aaba17d1db..78bcf77831fe 100644
--- a/drivers/thunderbolt/debugfs.c
+++ b/drivers/thunderbolt/debugfs.c
@@ -18,7 +18,8 @@
#define PORT_CAP_POWER_LEN 2
#define PORT_CAP_LANE_LEN 3
#define PORT_CAP_USB3_LEN 5
-#define PORT_CAP_DP_LEN 8
+#define PORT_CAP_DP_V1_LEN 9
+#define PORT_CAP_DP_V2_LEN 14
#define PORT_CAP_TMU_V1_LEN 8
#define PORT_CAP_TMU_V2_LEN 10
#define PORT_CAP_BASIC_LEN 9
@@ -1175,11 +1176,13 @@ static void port_cap_show(struct tb_port *port, struct seq_file *s,
case TB_PORT_CAP_ADAP:
if (tb_port_is_pcie_down(port) || tb_port_is_pcie_up(port)) {
length = PORT_CAP_PCIE_LEN;
- } else if (tb_port_is_dpin(port) || tb_port_is_dpout(port)) {
- if (usb4_dp_port_bw_mode_supported(port))
- length = PORT_CAP_DP_LEN + 1;
+ } else if (tb_port_is_dpin(port)) {
+ if (usb4_switch_version(port->sw) < 2)
+ length = PORT_CAP_DP_V1_LEN;
else
- length = PORT_CAP_DP_LEN;
+ length = PORT_CAP_DP_V2_LEN;
+ } else if (tb_port_is_dpout(port)) {
+ length = PORT_CAP_DP_V1_LEN;
} else if (tb_port_is_usb3_down(port) ||
tb_port_is_usb3_up(port)) {
length = PORT_CAP_USB3_LEN;
--
2.39.2
