diff options
| author | Xu Yang <xu.yang_2@nxp.com> | 2023-08-20 23:15:18 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-23 11:12:26 +0200 |
| commit | 2d6d80127006ae3da26b1f21a65eccf957f2d1e5 (patch) | |
| tree | 2632f1debf54b12ea1186d0ae423b3f812ca013c /drivers/usb | |
| parent | c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 (diff) | |
usb: typec: tcpm: reset counter when enter into unattached state after try role
The try_src_count and try_snk_count may still be 1 after enter into
unattached state. This may be caused by below case:
- SNK_TRY->SNK_TRY_WAIT->SRC_TRYWAIT->SNK_UNATTACHED
- SRC_TRY->SRC_TRY_WAIT->SNK_TRYWAIT->SNK_UNATTACHED
The port->attached is not true at the end and tcpm_reset_port() will not
be called. This will reset counter into for these cases, otherwise the tcpm
won't try role when new cable attached.
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230820151518.1403006-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index df728a066c58..3051b8a8db81 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -3720,6 +3720,9 @@ static void tcpm_detach(struct tcpm_port *port) if (tcpm_port_is_disconnected(port)) port->hard_reset_count = 0; + port->try_src_count = 0; + port->try_snk_count = 0; + if (!port->attached) return; |