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usb: typec: ucsi: Report power supply changes

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When the ucsi power supply goes online/offline, and when the
power levels change, the power supply class needs to be
notified so it can inform the user space.

Fixes: 992a60ed0d5e ("usb: typec: ucsi: register with power_supply class")
Cc: stable@vger.kernel.org
Reported-and-tested-by: Vladimir Yerilov <openmindead@gmail.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201110120547.67922-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2020-11-10 15:05:47 +03:00 committed by Greg Kroah-Hartman
parent 76255470ff
commit 0e6371fbfb
3 changed files with 17 additions and 1 deletions
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9
drivers/usb/typec/ucsi/psy.c
View File

@ -238,4 +238,13 @@ void ucsi_unregister_port_psy(struct ucsi_connector *con)
return;
power_supply_unregister(con->psy);
con->psy = NULL;
}
void ucsi_port_psy_changed(struct ucsi_connector *con)
{
if (IS_ERR_OR_NULL(con->psy))
return;
power_supply_changed(con->psy);
}

7
drivers/usb/typec/ucsi/ucsi.c
View File

@ -643,8 +643,10 @@ static void ucsi_handle_connector_change(struct work_struct *work)
role = !!(con->status.flags & UCSI_CONSTAT_PWR_DIR);
if (con->status.change & UCSI_CONSTAT_POWER_OPMODE_CHANGE ||
con->status.change & UCSI_CONSTAT_POWER_LEVEL_CHANGE)
con->status.change & UCSI_CONSTAT_POWER_LEVEL_CHANGE) {
ucsi_pwr_opmode_change(con);
ucsi_port_psy_changed(con);
}
if (con->status.change & UCSI_CONSTAT_POWER_DIR_CHANGE) {
typec_set_pwr_role(con->port, role);
@ -674,6 +676,8 @@ static void ucsi_handle_connector_change(struct work_struct *work)
ucsi_register_partner(con);
else
ucsi_unregister_partner(con);
ucsi_port_psy_changed(con);
}
if (con->status.change & UCSI_CONSTAT_CAM_CHANGE) {
@ -994,6 +998,7 @@ static int ucsi_register_port(struct ucsi *ucsi, int index)
!!(con->status.flags & UCSI_CONSTAT_PWR_DIR));
ucsi_pwr_opmode_change(con);
ucsi_register_partner(con);
ucsi_port_psy_changed(con);
}
if (con->partner) {

2
drivers/usb/typec/ucsi/ucsi.h
View File

@ -340,9 +340,11 @@ int ucsi_resume(struct ucsi *ucsi);
#if IS_ENABLED(CONFIG_POWER_SUPPLY)
int ucsi_register_port_psy(struct ucsi_connector *con);
void ucsi_unregister_port_psy(struct ucsi_connector *con);
void ucsi_port_psy_changed(struct ucsi_connector *con);
#else
static inline int ucsi_register_port_psy(struct ucsi_connector *con) { return 0; }
static inline void ucsi_unregister_port_psy(struct ucsi_connector *con) { }
static inline void ucsi_port_psy_changed(struct ucsi_connector *con) { }
#endif /* CONFIG_POWER_SUPPLY */
#if IS_ENABLED(CONFIG_TYPEC_DP_ALTMODE)