diff mbox

[v5,11/14] usb: typec: tcpm: set cc for drp toggling attach

Message ID 1525307094-27402-12-git-send-email-jun.li@nxp.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jun Li May 3, 2018, 12:24 a.m. UTC 
In case of drp toggling, we may need set correct cc value for role control
after attach as it may never been set.

Signed-off-by: Li Jun <jun.li@nxp.com>
---
 drivers/usb/typec/tcpm.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox

Patch

diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index 0c7fa14..7e7eaca 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -2599,6 +2599,7 @@  static void tcpm_reset_port(struct tcpm_port *port)
 	tcpm_set_attached_state(port, false);
 	port->try_src_count = 0;
 	port->try_snk_count = 0;
+	port->cc_req = TYPEC_CC_OPEN;
 	port->supply_voltage = 0;
 	port->current_limit = 0;
 	port->usb_type = POWER_SUPPLY_USB_TYPE_C;
@@ -2831,6 +2832,8 @@  static void run_state_machine(struct tcpm_port *port)
 		break;
 
 	case SRC_ATTACHED:
+		if (port->cc_req == TYPEC_CC_OPEN)
+			tcpm_set_cc(port, tcpm_rp_cc(port));
 		ret = tcpm_src_attach(port);
 		tcpm_set_state(port, SRC_UNATTACHED,
 			       ret < 0 ? 0 : PD_T_PS_SOURCE_ON);
@@ -3004,6 +3007,8 @@  static void run_state_machine(struct tcpm_port *port)
 		tcpm_set_state(port, SNK_UNATTACHED, PD_T_PD_DEBOUNCE);
 		break;
 	case SNK_ATTACHED:
+		if (port->cc_req == TYPEC_CC_OPEN)
+			tcpm_set_cc(port, TYPEC_CC_RD);
 		ret = tcpm_snk_attach(port);
 		if (ret < 0)
 			tcpm_set_state(port, SNK_UNATTACHED, 0);