diff options
Diffstat (limited to 'common/usbc/usb_tc_drp_acc_trysrc_sm.c')
| -rw-r--r-- | common/usbc/usb_tc_drp_acc_trysrc_sm.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/common/usbc/usb_tc_drp_acc_trysrc_sm.c b/common/usbc/usb_tc_drp_acc_trysrc_sm.c index 041c3c7187..bf7d69bf13 100644 --- a/common/usbc/usb_tc_drp_acc_trysrc_sm.c +++ b/common/usbc/usb_tc_drp_acc_trysrc_sm.c @@ -1887,6 +1887,16 @@ __maybe_unused static void handle_new_power_state(int port) } /* + * If the sink port was sourcing Vconn, and can no longer, request a + * hard reset on this port to restore Vconn to the source. + */ + if (IS_ENABLED(CONFIG_USB_PE_SM)) { + if (tc_is_vconn_src(port) && tc_is_attached_snk(port) && + !pd_check_vconn_swap(port)) + pd_dpm_request(port, DPM_REQUEST_HARD_RESET_SEND); + } + + /* * TC_FLAGS_UPDATE_USB_MUX is set on chipset startup and shutdown. * Set the USB mux according to the new power state. If the chipset * is transitioning to OFF, this disconnects USB and DP mux. @@ -3995,6 +4005,27 @@ static void pd_chipset_shutdown(void) } DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, pd_chipset_shutdown, HOOK_PRIO_DEFAULT); +static void pd_set_power_change(void) +{ + int i; + + for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) { + task_set_event(PD_PORT_TO_TASK_ID(i), + PD_EVENT_POWER_STATE_CHANGE); + } +} +DECLARE_DEFERRED(pd_set_power_change); + +static void pd_chipset_hard_off(void) +{ + /* + * Wait 1 second to check our Vconn sourcing status, as the power rails + * which were supporting it may take some time to change after entering + * G3. + */ + hook_call_deferred(&pd_set_power_change_data, 1 * SECOND); +} +DECLARE_HOOK(HOOK_CHIPSET_HARD_OFF, pd_chipset_hard_off, HOOK_PRIO_DEFAULT); /* * Type-C State Hierarchy (Sub-States are listed inside the boxes) |