Messages in this thread Patch in this message | | | From | Frank Wang <> | Subject | [PATCH v2 1/3] usb: typec: tcpm: fix cc role at port reset | Date | Mon, 20 Mar 2023 18:07:09 +0800 |
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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> --- drivers/usb/typec/tcpm/tcpm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index a0d943d785800..56782dd05e2ec 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -4851,7 +4851,8 @@ 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; -- 2.17.1
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