diff options
| -rw-r--r-- | common/usb_pd_protocol.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/common/usb_pd_protocol.c b/common/usb_pd_protocol.c index f0aaac259e..279dc465d2 100644 --- a/common/usb_pd_protocol.c +++ b/common/usb_pd_protocol.c @@ -1541,6 +1541,25 @@ static int pd_send_request_msg(int port, int always_send_request) CPRINTF(" Mismatch"); CPRINTF("\n"); + /* + * Ref: USB Power Delivery Specification + * (Revision 3.0, Version 2.0 / Revision 2.0, Version 1.3) + * 6.4.2.4 USB Communications Capable + * 6.4.2.5 No USB Suspend + * + * If the port partner is capable of USB communication set the + * USB Communications Capable flag. + * If the port partner is sink device do not suspend USB as the + * power can be used for charging. + * + * TODO (b/147249926): Move it to common code. + */ + if (pd[port].flags & PD_FLAGS_PARTNER_USB_COMM) { + rdo |= RDO_COMM_CAP; + if (pd[port].power_role == PD_ROLE_SINK) + rdo |= RDO_NO_SUSPEND; + } + pd[port].curr_limit = curr_limit; pd[port].supply_voltage = supply_voltage; pd[port].prev_request_mv = supply_voltage; |