From: Gil Fine <gil.fine@xxxxxxxxxxxxxxx>
For USB4 v2 routers, the PCIe 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 | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c
index 78bcf77831fe..c9ddd49138d8 100644
--- a/drivers/thunderbolt/debugfs.c
+++ b/drivers/thunderbolt/debugfs.c
@@ -14,7 +14,8 @@
#include "tb.h"
#include "sb_regs.h"
-#define PORT_CAP_PCIE_LEN 1
+#define PORT_CAP_V1_PCIE_LEN 1
+#define PORT_CAP_V2_PCIE_LEN 2
#define PORT_CAP_POWER_LEN 2
#define PORT_CAP_LANE_LEN 3
#define PORT_CAP_USB3_LEN 5
@@ -1175,7 +1176,10 @@ 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;
+ if (usb4_switch_version(port->sw) < 2)
+ length = PORT_CAP_V1_PCIE_LEN;
+ else
+ length = PORT_CAP_V2_PCIE_LEN;
} else if (tb_port_is_dpin(port)) {
if (usb4_switch_version(port->sw) < 2)
length = PORT_CAP_DP_V1_LEN;
--
2.39.2
