diff options
Diffstat (limited to 'common/usbc/usb_pe_drp_sm.c')
| -rw-r--r-- | common/usbc/usb_pe_drp_sm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/common/usbc/usb_pe_drp_sm.c b/common/usbc/usb_pe_drp_sm.c index aa93f1cdc3..0264837057 100644 --- a/common/usbc/usb_pe_drp_sm.c +++ b/common/usbc/usb_pe_drp_sm.c @@ -4666,6 +4666,14 @@ static void pe_drs_evaluate_swap_entry(int port) * PE_DRS_DFP_UFP_Accept_Swap states embedded here. */ send_ctrl_msg(port, TCPCI_MSG_SOP, PD_CTRL_ACCEPT); + /* + * The PD spec implies that the PE transitions through + * PE_DRS_*_Accept_Swap and PE_DRS_Change and updates the data + * role instantaneously, but this PE doesn't. During the + * transition, do not validate the data role of incoming + * messages, in case the port partner transitioned faster. + */ + prl_set_data_role_check(port, false); } else { /* * PE_DRS_UFP_DFP_Reject_Swap and PE_DRS_DFP_UFP_Reject_Swap @@ -4717,6 +4725,7 @@ static void pe_drs_change_run(int port) /* Update the data role */ pe[port].data_role = pd_get_data_role(port); + prl_set_data_role_check(port, true); if (pe[port].data_role == PD_ROLE_DFP) PE_CLR_FLAG(port, PE_FLAGS_DR_SWAP_TO_DFP); |