diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/usbc/usb_prl_sm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/common/usbc/usb_prl_sm.c b/common/usbc/usb_prl_sm.c index f36248e8ac..0fcc9ba663 100644 --- a/common/usbc/usb_prl_sm.c +++ b/common/usbc/usb_prl_sm.c @@ -1229,7 +1229,7 @@ static void prl_tx_snk_pending_entry(const int port) static void prl_tx_snk_pending_run(const int port) { - enum tcpc_cc_voltage_status cc1, cc2; + bool start_tx = false; /* * Wait unit the SRC applies SINK_TX_OK so we can transmit. In FRS mode, @@ -1237,9 +1237,17 @@ static void prl_tx_snk_pending_run(const int port) * gone or the TCPC CC_STATUS update time could be too long to meet * tFRSwapInit. */ - tcpm_get_cc(port, &cc1, &cc2); - if (cc1 == TYPEC_CC_VOLT_RP_3_0 || cc2 == TYPEC_CC_VOLT_RP_3_0 || - pe_in_frs_mode(port)) { + if (pe_in_frs_mode(port)) { + /* shortcut to save some i2c_xfer calls on the FRS path. */ + start_tx = true; + } else { + enum tcpc_cc_voltage_status cc1, cc2; + + tcpm_get_cc(port, &cc1, &cc2); + start_tx = (cc1 == TYPEC_CC_VOLT_RP_3_0 || + cc2 == TYPEC_CC_VOLT_RP_3_0); + } + if (start_tx) { /* * We clear the pending XMIT flag here right before we send so * we can detect if we discarded this message or not |