| Message ID | 20220426112540.6053-5-mika.westerberg@linux.intel.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 0a2e1667a73fe0c4374ddace925d85a4072d509c |
| Headers | show |
| Series | thunderbolt: Add support for XDomain lane bonding | expand |
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 525be2aa3ad9..561e1d77240e 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -1168,10 +1168,17 @@ int tb_port_wait_for_link_width(struct tb_port *port, int width, do { ret = tb_port_get_link_width(port); - if (ret < 0) - return ret; - else if (ret == width) + if (ret < 0) { + /* + * Sometimes we get port locked error when + * polling the lanes so we can ignore it and + * retry. + */ + if (ret != -EACCES) + return ret; + } else if (ret == width) { return 0; + } usleep_range(1000, 2000); } while (ktime_before(ktime_get(), timeout));
Sometimes when polling for the port after target link width is changed we get back port locked notification (because the link actually was reset and then re-trained). Instead of bailing out we can ignore these when polling for the width change as this is expected. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> --- drivers/thunderbolt/switch.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)