When DisplayPort bandwidth allocation mode is supported by the DP IN adapter it has an extra double word in the adapter config space. Include this in the debugfs register dump. Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> --- drivers/thunderbolt/debugfs.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c index 834bcad42e9f..4339e706cc3a 100644 --- a/drivers/thunderbolt/debugfs.c +++ b/drivers/thunderbolt/debugfs.c @@ -1159,7 +1159,10 @@ static void port_cap_show(struct tb_port *port, struct seq_file *s, 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)) { - length = PORT_CAP_DP_LEN; + if (usb4_dp_port_bw_mode_supported(port)) + length = PORT_CAP_DP_LEN + 1; + else + length = PORT_CAP_DP_LEN; } else if (tb_port_is_usb3_down(port) || tb_port_is_usb3_up(port)) { length = PORT_CAP_USB3_LEN; -- 2.35.1