| Message ID | 20240209141335.2286786-5-mika.westerberg@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | thunderbolt: DisplayPort and bandwidth allocation mode improvements | expand |
diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c index 4b35898aa216..f4fba144105d 100644 --- a/drivers/thunderbolt/usb4.c +++ b/drivers/thunderbolt/usb4.c @@ -2858,8 +2858,10 @@ static int usb4_dp_port_wait_and_clear_cm_ack(struct tb_port *port, usleep_range(50, 100); } while (ktime_before(ktime_get(), end)); - if (val & ADP_DP_CS_8_DR) + if (val & ADP_DP_CS_8_DR) { + tb_port_warn(port, "timeout waiting for DPTX request to clear\n"); return -ETIMEDOUT; + } ret = tb_port_read(port, &val, TB_CFG_PORT, port->cap_adap + ADP_DP_CS_2, 1);
This helps debugging issues around DisplayPort bandwidth allocation mode. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> --- drivers/thunderbolt/usb4.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)