| Message ID | 20210606081452.764032-1-kyletso@google.com |
|---|---|
| State | New |
| Headers | show |
| Series | usb: typec: tcpm: Do not finish VDM AMS for retrying Responses | expand |
On Sun, Jun 06, 2021 at 04:14:52PM +0800, Kyle Tso wrote: > If the VDM responses couldn't be sent successfully, it doesn't need to > finish the AMS until the retry count reaches the limit. > > Fixes: 0908c5aca31e ("usb: typec: tcpm: AMS and Collision Avoidance") > Signed-off-by: Kyle Tso <kyletso@google.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> > --- > drivers/usb/typec/tcpm/tcpm.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c > index 0db685d5d9c0..08fabe1fc31d 100644 > --- a/drivers/usb/typec/tcpm/tcpm.c > +++ b/drivers/usb/typec/tcpm/tcpm.c > @@ -1965,6 +1965,9 @@ static void vdm_run_state_machine(struct tcpm_port *port) > tcpm_log(port, "VDM Tx error, retry"); > port->vdm_retries++; > port->vdm_state = VDM_STATE_READY; > + if (PD_VDO_SVDM(vdo_hdr) && PD_VDO_CMDT(vdo_hdr) == CMDT_INIT) > + tcpm_ams_finish(port); > + } else { > tcpm_ams_finish(port); > } > break; > -- > 2.32.0.rc1.229.g3e70b5a671-goog -- heikki
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 0db685d5d9c0..08fabe1fc31d 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1965,6 +1965,9 @@ static void vdm_run_state_machine(struct tcpm_port *port) tcpm_log(port, "VDM Tx error, retry"); port->vdm_retries++; port->vdm_state = VDM_STATE_READY; + if (PD_VDO_SVDM(vdo_hdr) && PD_VDO_CMDT(vdo_hdr) == CMDT_INIT) + tcpm_ams_finish(port); + } else { tcpm_ams_finish(port); } break;
If the VDM responses couldn't be sent successfully, it doesn't need to finish the AMS until the retry count reaches the limit. Fixes: 0908c5aca31e ("usb: typec: tcpm: AMS and Collision Avoidance") Signed-off-by: Kyle Tso <kyletso@google.com> --- drivers/usb/typec/tcpm/tcpm.c | 3 +++ 1 file changed, 3 insertions(+)