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usb: typec: tcpm: fix cc role at port reset 

In the current implementation, the tcpm set CC1/CC2 role to open when
it do port reset would cause the VBUS removed by the Type-C partner.

This sets CC1/CC2 according to the default state of port to fix it.

Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20230616075241.27690-1-frank.wang@rock-chips.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Frank Wang 2023-06-16 15:52:40 +08:00 committed by Greg Kroah-Hartman
parent 88d8f3ac9c
commit 1e35f07439
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/typec/tcpm/tcpm.c
View File

@ -4885,7 +4885,8 @@ static void run_state_machine(struct tcpm_port *port)
break;
case PORT_RESET:
tcpm_reset_port(port);
tcpm_set_cc(port, TYPEC_CC_OPEN);
tcpm_set_cc(port, tcpm_default_state(port) == SNK_UNATTACHED ?
TYPEC_CC_RD : tcpm_rp_cc(port));
tcpm_set_state(port, PORT_RESET_WAIT_OFF,
PD_T_ERROR_RECOVERY);
break;