diff options
| author | Badhri Jagan Sridharan <badhri@google.com> | 2021-03-18 09:48:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-18 11:47:47 +0300 |
| commit | 2b8c956ea6ba896ec18ae36c2684ecfa04c1f479 (patch) | |
| tree | 66ec4240b95e7144ee0b141d21522f9a8910ac1d /drivers | |
| parent | f09ddcfcb8c569675066337adac2ac205113471f (diff) | |
| download | linux-2b8c956ea6ba896ec18ae36c2684ecfa04c1f479.tar.xz | |
usb: typec: tcpm: Skip sink_cap query only when VDM sm is busy
When port partner responds "Not supported" to the DiscIdentity command,
VDM state machine can remain in NVDM_STATE_ERR_TMOUT and this causes
querying sink cap to be skipped indefinitely. Hence check for
vdm_sm_running instead of checking for VDM_STATE_DONE.
Fixes: 8dc4bd073663f ("usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS)")
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210318064805.3747831-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 92093ea12cff..ce7af398c7c1 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -5173,7 +5173,7 @@ static void tcpm_enable_frs_work(struct kthread_work *work) goto unlock; /* Send when the state machine is idle */ - if (port->state != SNK_READY || port->vdm_state != VDM_STATE_DONE || port->send_discover) + if (port->state != SNK_READY || port->vdm_sm_running || port->send_discover) goto resched; port->upcoming_state = GET_SINK_CAP; |