From: pumahsu <[email protected]> PD 3.0 spec 8.3.3.2.3, A Get_Source_Cap message is sent to a UUT that is in the PE_SRC_Ready state. After sending a Source_Capabilities message, the UUT should then expect a Request message in response. When one is not received, the UUT should timeout to PE_SRC_Hard_Reset.
Cc: Guenter Roeck <[email protected]> Cc: Heikki Krogerus <[email protected]> Cc: Badhri Jagan Sridharan <[email protected]> Signed-off-by: pumahsu <[email protected]> Signed-off-by: Kyle Tso <[email protected]> Signed-off-by: Will McVicker <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/typec/tcpm/tcpm.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 0ceeab50ed64..0efda59bb104 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -2218,6 +2218,7 @@ static int tcpm_pd_send_control(struct tcpm_port *port, static bool tcpm_send_queued_message(struct tcpm_port *port) { enum pd_msg_request queued_message; + int ret; do { queued_message = port->queued_message; @@ -2237,7 +2238,16 @@ static bool tcpm_send_queued_message(struct tcpm_port *port) tcpm_pd_send_sink_caps(port); break; case PD_MSG_DATA_SOURCE_CAP: - tcpm_pd_send_source_caps(port); + ret = tcpm_pd_send_source_caps(port); + if (ret < 0) { + tcpm_log(port, + "Unable to send src caps, ret=%d", + ret); + tcpm_set_state(port, SOFT_RESET_SEND, 0); + } else if (port->pwr_role == TYPEC_SOURCE) { + tcpm_set_state(port, HARD_RESET_SEND, + PD_T_SENDER_RESPONSE); + } break; default: break; -- 2.29.2
