diff options
Diffstat (limited to 'include/linux/usb/tcpm.h')
| -rw-r--r-- | include/linux/usb/tcpm.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h index efaedd7e8a18..f4a18427f5c4 100644 --- a/include/linux/usb/tcpm.h +++ b/include/linux/usb/tcpm.h @@ -98,6 +98,12 @@ enum tcpm_transmit_type { * will be turned on. requested_vbus_voltage is set to 0 when vbus * is going to disappear knowingly i.e. during PR_SWAP and * HARD_RESET etc. + * @is_vbus_vsafe0v: + * Optional; TCPCI spec based TCPC implementations are expected to + * detect VSAFE0V voltage level at vbus. When detection of VSAFE0V + * is supported by TCPC, set this callback for TCPM to query + * whether vbus is at VSAFE0V when needed. + * Returns true when vbus is at VSAFE0V, false otherwise. */ struct tcpc_dev { struct fwnode_handle *fwnode; @@ -128,6 +134,7 @@ struct tcpc_dev { int (*enable_auto_vbus_discharge)(struct tcpc_dev *dev, bool enable); int (*set_auto_vbus_discharge_threshold)(struct tcpc_dev *dev, enum typec_pwr_opmode mode, bool pps_active, u32 requested_vbus_voltage); + bool (*is_vbus_vsafe0v)(struct tcpc_dev *dev); }; struct tcpm_port; |