diff options
Diffstat (limited to 'drivers/usb/typec/tcpm/tcpci_maxim_core.c')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci_maxim_core.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/usb/typec/tcpm/tcpci_maxim_core.c b/drivers/usb/typec/tcpm/tcpci_maxim_core.c index 9454b12a073c..7fb966fd639b 100644 --- a/drivers/usb/typec/tcpm/tcpci_maxim_core.c +++ b/drivers/usb/typec/tcpm/tcpci_maxim_core.c @@ -92,11 +92,16 @@ static void max_tcpci_init_regs(struct max_tcpci_chip *chip) return; } + /* Vconn Over Current Protection */ + ret = max_tcpci_write8(chip, TCPC_FAULT_STATUS_MASK, TCPC_FAULT_STATUS_MASK_VCONN_OC); + if (ret < 0) + return; + alert_mask = TCPC_ALERT_TX_SUCCESS | TCPC_ALERT_TX_DISCARDED | TCPC_ALERT_TX_FAILED | TCPC_ALERT_RX_HARD_RST | TCPC_ALERT_RX_STATUS | TCPC_ALERT_CC_STATUS | TCPC_ALERT_VBUS_DISCNCT | TCPC_ALERT_RX_BUF_OVF | TCPC_ALERT_POWER_STATUS | /* Enable Extended alert for detecting Fast Role Swap Signal */ - TCPC_ALERT_EXTND | TCPC_ALERT_EXTENDED_STATUS; + TCPC_ALERT_EXTND | TCPC_ALERT_EXTENDED_STATUS | TCPC_ALERT_FAULT; ret = max_tcpci_write16(chip, TCPC_ALERT_MASK, alert_mask); if (ret < 0) { @@ -295,6 +300,19 @@ static irqreturn_t _max_tcpci_irq(struct max_tcpci_chip *chip, u16 status) } } + if (status & TCPC_ALERT_FAULT) { + ret = max_tcpci_read8(chip, TCPC_FAULT_STATUS, ®_status); + if (ret < 0) + return ret; + + ret = max_tcpci_write8(chip, TCPC_FAULT_STATUS, reg_status); + if (ret < 0) + return ret; + + if (reg_status & TCPC_FAULT_STATUS_VCONN_OC) + tcpm_port_error_recovery(chip->port); + } + if (status & TCPC_ALERT_EXTND) { ret = max_tcpci_read8(chip, TCPC_ALERT_EXTENDED, ®_status); if (ret < 0) |