thunderbolt: Fix DisplayPort IN adapter capability length for USB4 v2 routers

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

diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c
index 48aaba17d1db8ad96a4f75ac9a4f597f944e912a..78bcf77831fe2f7e35270d8350f285257949e811 100644 (file)
--- 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;