diff options
| -rw-r--r-- | common/usbc/usb_pe_drp_sm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/common/usbc/usb_pe_drp_sm.c b/common/usbc/usb_pe_drp_sm.c index d144f07ba7..1560eee817 100644 --- a/common/usbc/usb_pe_drp_sm.c +++ b/common/usbc/usb_pe_drp_sm.c @@ -1304,6 +1304,12 @@ static bool pe_attempt_port_discovery(int port) pe[port].tx_type = TCPC_TX_SOP; set_state_pe(port, PE_INIT_VDM_MODES_REQUEST); return true; + } else if (pd_get_svids_discovery(port, TCPC_TX_SOP_PRIME) + == PD_DISC_NEEDED && + pe_can_send_sop_prime(port)) { + pe[port].tx_type = TCPC_TX_SOP_PRIME; + set_state_pe(port, PE_INIT_VDM_SVIDS_REQUEST); + return true; /* * Note: determine if next VDM can be sent by taking advantage * of discovery following the VDM command enum ordering. @@ -4356,6 +4362,10 @@ static void pe_vdm_identity_request_cbl_exit(int port) && pe[port].discover_identity_timer > get_time().val) pe[port].discover_identity_timer = get_time().val + PD_T_DISCOVER_IDENTITY; + + /* Do not attempt further discovery if identity discovery failed. */ + if (pd_get_identity_discovery(port, TCPC_TX_SOP_PRIME) == PD_DISC_FAIL) + pd_set_svids_discovery(port, TCPC_TX_SOP_PRIME, PD_DISC_FAIL); } /** |