diff options
Diffstat (limited to 'common/usb_pd_protocol.c')
| -rw-r--r-- | common/usb_pd_protocol.c | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/common/usb_pd_protocol.c b/common/usb_pd_protocol.c index af623fbcbe..dda616d4b7 100644 --- a/common/usb_pd_protocol.c +++ b/common/usb_pd_protocol.c @@ -2353,26 +2353,35 @@ void pd_task(void *u) pd[port].flags |= PD_FLAGS_TS_DTS_PARTNER; +#ifdef CONFIG_USBC_VCONN + /* + * Start sourcing Vconn before Vbus to ensure + * we are within USB Type-C Spec 1.3 tVconnON + */ + set_vconn(port, 1); + pd[port].flags |= PD_FLAGS_VCONN_ON; +#endif + #ifndef CONFIG_USBC_BACKWARDS_COMPATIBLE_DFP /* Enable VBUS */ if (pd_set_power_supply_ready(port)) { +#ifdef CONFIG_USBC_VCONN + /* Stop sourcing Vconn if Vbus failed */ + set_vconn(port, 0); + pd[port].flags &= ~PD_FLAGS_VCONN_ON; +#endif /* CONFIG_USBC_VCONN */ #ifdef CONFIG_USBC_SS_MUX usb_mux_set(port, TYPEC_MUX_NONE, USB_SWITCH_DISCONNECT, pd[port].polarity); -#endif +#endif /* CONFIG_USBC_SS_MUX */ break; } -#endif +#endif /* CONFIG_USBC_BACKWARDS_COMPATIBLE_DFP */ /* If PD comm is enabled, enable TCPC RX */ if (pd_comm_is_enabled(port)) tcpm_set_rx_enable(port, 1); -#ifdef CONFIG_USBC_VCONN - set_vconn(port, 1); - pd[port].flags |= PD_FLAGS_VCONN_ON; -#endif - pd[port].flags |= PD_FLAGS_CHECK_PR_ROLE | PD_FLAGS_CHECK_DR_ROLE; hard_reset_count = 0; |