From: Michael Grzeschik m.grzeschik@pengutronix.de
[ Upstream commit 8a50da849151e7e12b43c1d8fe7ad302223aef6b ]
The funciton tcpm_acc_attach is not setting the proper state when calling tcpm_set_role. The function tcpm_set_role is currently only handling TYPEC_STATE_USB. For the tcpm_acc_attach to switch into other modal states tcpm_set_role needs to be extended by an extra state parameter. This patch is handling the proper state change when calling tcpm_acc_attach.
Signed-off-by: Michael Grzeschik m.grzeschik@pengutronix.de Reviewed-by: Heikki Krogerus heikki.krogerus@linux.intel.com Link: https://lore.kernel.org/r/20250404-ml-topic-tcpm-v1-3-b99f44badce8@pengutron... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Stable-dep-of: bec15191d523 ("usb: typec: tcpm: apply vbus before data bringup in tcpm_src_attach") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/typec/tcpm/tcpm.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 69115c60285d3..0fe66a99fcc41 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1024,7 +1024,7 @@ static int tcpm_set_attached_state(struct tcpm_port *port, bool attached) port->data_role); }
-static int tcpm_set_roles(struct tcpm_port *port, bool attached, +static int tcpm_set_roles(struct tcpm_port *port, bool attached, int state, enum typec_role role, enum typec_data_role data) { enum typec_orientation orientation; @@ -1061,7 +1061,7 @@ static int tcpm_set_roles(struct tcpm_port *port, bool attached, } }
- ret = tcpm_mux_set(port, TYPEC_STATE_USB, usb_role, orientation); + ret = tcpm_mux_set(port, state, usb_role, orientation); if (ret < 0) return ret;
@@ -3622,7 +3622,8 @@ static int tcpm_src_attach(struct tcpm_port *port)
tcpm_enable_auto_vbus_discharge(port, true);
- ret = tcpm_set_roles(port, true, TYPEC_SOURCE, tcpm_data_role_for_source(port)); + ret = tcpm_set_roles(port, true, TYPEC_STATE_USB, + TYPEC_SOURCE, tcpm_data_role_for_source(port)); if (ret < 0) return ret;
@@ -3772,7 +3773,8 @@ static int tcpm_snk_attach(struct tcpm_port *port)
tcpm_enable_auto_vbus_discharge(port, true);
- ret = tcpm_set_roles(port, true, TYPEC_SINK, tcpm_data_role_for_sink(port)); + ret = tcpm_set_roles(port, true, TYPEC_STATE_USB, + TYPEC_SINK, tcpm_data_role_for_sink(port)); if (ret < 0) return ret;
@@ -3796,6 +3798,7 @@ static int tcpm_acc_attach(struct tcpm_port *port) int ret; enum typec_role role; enum typec_data_role data; + int state = TYPEC_STATE_USB;
if (port->attached) return 0; @@ -3804,7 +3807,13 @@ static int tcpm_acc_attach(struct tcpm_port *port) data = tcpm_port_is_sink(port) ? tcpm_data_role_for_sink(port) : tcpm_data_role_for_source(port);
- ret = tcpm_set_roles(port, true, role, data); + if (tcpm_port_is_audio(port)) + state = TYPEC_MODE_AUDIO; + + if (tcpm_port_is_debug(port)) + state = TYPEC_MODE_DEBUG; + + ret = tcpm_set_roles(port, true, state, role, data); if (ret < 0) return ret;
@@ -4484,7 +4493,7 @@ static void run_state_machine(struct tcpm_port *port) */ tcpm_set_vconn(port, false); tcpm_set_vbus(port, false); - tcpm_set_roles(port, port->self_powered, TYPEC_SOURCE, + tcpm_set_roles(port, port->self_powered, TYPEC_STATE_USB, TYPEC_SOURCE, tcpm_data_role_for_source(port)); /* * If tcpc fails to notify vbus off, TCPM will wait for PD_T_SAFE_0V + @@ -4516,7 +4525,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_vconn(port, false); if (port->pd_capable) tcpm_set_charge(port, false); - tcpm_set_roles(port, port->self_powered, TYPEC_SINK, + tcpm_set_roles(port, port->self_powered, TYPEC_STATE_USB, TYPEC_SINK, tcpm_data_role_for_sink(port)); /* * VBUS may or may not toggle, depending on the adapter. @@ -4615,10 +4624,10 @@ static void run_state_machine(struct tcpm_port *port) case DR_SWAP_CHANGE_DR: tcpm_unregister_altmodes(port); if (port->data_role == TYPEC_HOST) - tcpm_set_roles(port, true, port->pwr_role, + tcpm_set_roles(port, true, TYPEC_STATE_USB, port->pwr_role, TYPEC_DEVICE); else - tcpm_set_roles(port, true, port->pwr_role, + tcpm_set_roles(port, true, TYPEC_STATE_USB, port->pwr_role, TYPEC_HOST); tcpm_ams_finish(port); tcpm_set_state(port, ready_state(port), 0);