From: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
commit 86629e098a077922438efa98dc80917604dfd317 upstream.
tcpm-source-psy- does not invoke power_supply_changed API when
one of the published power supply properties is changed.
power_supply_changed needs to be called to notify
userspace clients(uevents) and kernel clients.
Fixes: f2a8aa053c176 ("typec: tcpm: Represent source supply through power_supply")
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Signed-off-by: Badhri Jagan Sridharan <badhri@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210317181249.1062995-1-badhri@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/typec/tcpm/tcpm.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -739,6 +739,7 @@ static int tcpm_set_current_limit(struct
port->supply_voltage = mv;
port->current_limit = max_ma;
+ power_supply_changed(port->psy);
if (port->tcpc->set_current_limit)
ret = port->tcpc->set_current_limit(port->tcpc, max_ma, mv);
@@ -2138,6 +2139,7 @@ static int tcpm_pd_select_pdo(struct tcp
port->pps_data.supported = false;
port->usb_type = POWER_SUPPLY_USB_TYPE_PD;
+ power_supply_changed(port->psy);
/*
* Select the source PDO providing the most power which has a
@@ -2162,6 +2164,7 @@ static int tcpm_pd_select_pdo(struct tcp
port->pps_data.supported = true;
port->usb_type =
POWER_SUPPLY_USB_TYPE_PD_PPS;
+ power_supply_changed(port->psy);
}
continue;
default:
@@ -2319,6 +2322,7 @@ static unsigned int tcpm_pd_select_pps_a
port->pps_data.out_volt));
port->pps_data.op_curr = min(port->pps_data.max_curr,
port->pps_data.op_curr);
+ power_supply_changed(port->psy);
}
return src_pdo;
@@ -2554,6 +2558,7 @@ static int tcpm_set_charge(struct tcpm_p
return ret;
}
port->vbus_charge = charge;
+ power_supply_changed(port->psy);
return 0;
}
@@ -4665,7 +4670,7 @@ static int tcpm_psy_set_prop(struct powe
ret = -EINVAL;
break;
}
-
+ power_supply_changed(port->psy);
return ret;
}
@@ -4816,6 +4821,7 @@ struct tcpm_port *tcpm_register_port(str
err = devm_tcpm_psy_register(port);
if (err)
goto out_role_sw_put;
+ power_supply_changed(port->psy);
port->typec_port = typec_register_port(port->dev, &port->typec_caps);
if (IS_ERR(port->typec_port)) {
