During PR_SWAP, When TCPM is in PR_SWAP_SNK_SRC_SINK_OFF, vbus is
expected to reach VSAFE0V when source turns of vbus. Do not move
to SNK_UNATTACHED state when this happens.
Fixes: 28b43d3d746b ("usb: typec: tcpm: Introduce vsafe0v for vbus")
Signed-off-by: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
---
drivers/usb/typec/tcpm/tcpm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index c4fdc00a3bc8..b93c4c8d7b15 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -5114,6 +5114,9 @@ static void _tcpm_pd_vbus_vsafe0v(struct tcpm_port *port)
tcpm_set_state(port, SNK_UNATTACHED, 0);
}
break;
+ case PR_SWAP_SNK_SRC_SINK_OFF:
+ /* Do nothing, vsafe0v is expected during transition */
+ break;
default:
if (port->pwr_role == TYPEC_SINK && port->auto_vbus_discharge_enabled)
tcpm_set_state(port, SNK_UNATTACHED, 0);
--
2.31.1.751.gd2f1c929bd-goog
