kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/drivers/usb/typec/tcpm/tcpm.c
..
..
@@ -1724,6 +1724,14 @@
1724
1724
 				rlen = 1;
1725
1725
 			} else if (port->data_role == TYPEC_HOST) {
1726
1726
 				tcpm_register_partner_altmodes(port);
1727
+			} else {
1728
+				/* Do dr_swap for ufp if the port supports drd */
1729
+				if (port->typec_caps.data == TYPEC_PORT_DRD &&
1730
+				    !IS_ERR_OR_NULL(port->port_altmode[0])) {
1731
+					port->vdm_sm_running = false;
1732
+					port->upcoming_state = DR_SWAP_SEND;
1733
+					tcpm_ams_start(port, DATA_ROLE_SWAP);
1734
+				}
1727
1735
 			}
1728
1736
 			break;
1729
1737
 		case CMD_ENTER_MODE:
..
..
@@ -1755,6 +1763,16 @@
1755
1763
 		tcpm_ams_finish(port);
1756
1764
 		switch (cmd) {
1757
1765
 		case CMD_DISCOVER_IDENT:
1766
+			/* Do dr_swap for ufp if the port supports drd */
1767
+			if (port->typec_caps.data == TYPEC_PORT_DRD &&
1768
+			    port->data_role == TYPEC_DEVICE &&
1769
+			    !IS_ERR_OR_NULL(port->port_altmode[0])) {
1770
+				port->vdm_sm_running = false;
1771
+				port->upcoming_state = DR_SWAP_SEND;
1772
+				tcpm_ams_start(port, DATA_ROLE_SWAP);
1773
+				break;
1774
+			}
1775
+			fallthrough;
1758
1776
 		case CMD_DISCOVER_SVID:
1759
1777
 		case CMD_DISCOVER_MODES:
1760
1778
 		case VDO_CMD_VENDOR(0) ... VDO_CMD_VENDOR(15):