diff options
Diffstat (limited to 'drivers/thunderbolt/retimer.c')
| -rw-r--r-- | drivers/thunderbolt/retimer.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/thunderbolt/retimer.c b/drivers/thunderbolt/retimer.c index 3aa790aa6500..722694052f4a 100644 --- a/drivers/thunderbolt/retimer.c +++ b/drivers/thunderbolt/retimer.c @@ -151,6 +151,7 @@ static int tb_retimer_nvm_validate_and_write(struct tb_retimer *rt) static int tb_retimer_nvm_authenticate(struct tb_retimer *rt, bool auth_only) { + u32 status; int ret; if (auth_only) { @@ -159,7 +160,24 @@ static int tb_retimer_nvm_authenticate(struct tb_retimer *rt, bool auth_only) return ret; } - return usb4_port_retimer_nvm_authenticate(rt->port, rt->index); + ret = usb4_port_retimer_nvm_authenticate(rt->port, rt->index); + if (ret) + return ret; + + usleep_range(100, 150); + + /* + * Check the status now if we still can access the retimer. It + * is expected that the below fails. + */ + ret = usb4_port_retimer_nvm_authenticate_status(rt->port, rt->index, + &status); + if (!ret) { + rt->auth_status = status; + return status ? -EINVAL : 0; + } + + return 0; } static ssize_t device_show(struct device *dev, struct device_attribute *attr, |