usb: typec: tcpci_maxim: Enable VSAFE0V signalling (0fbb7d06) · Commits · 戴 / test

drivers/usb/typec/tcpm/tcpci_maxim.c

+15 −1

Original line number	Diff line number	Diff line
		@@ -112,11 +112,18 @@ static void max_tcpci_init_regs(struct max_tcpci_chip *chip)
		return;
		}

		/* Enable VSAFE0V detection */
		ret = max_tcpci_write8(chip, TCPC_EXTENDED_STATUS_MASK, TCPC_EXTENDED_STATUS_VSAFE0V);
		if (ret < 0) {
		dev_err(chip->dev, "Unable to unmask TCPC_EXTENDED_STATUS_VSAFE0V ret:%d\n", ret);
		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_EXTND \| TCPC_ALERT_EXTENDED_STATUS;

		ret = max_tcpci_write16(chip, TCPC_ALERT_MASK, alert_mask);
		if (ret < 0) {
		@@ -315,6 +322,12 @@ static irqreturn_t _max_tcpci_irq(struct max_tcpci_chip *chip, u16 status)
		}
		}

		if (status & TCPC_ALERT_EXTENDED_STATUS) {
		ret = max_tcpci_read8(chip, TCPC_EXTENDED_STATUS, (u8 *)&reg_status);
		if (ret >= 0 && (reg_status & TCPC_EXTENDED_STATUS_VSAFE0V))
		tcpm_vbus_change(chip->port);
		}

		if (status & TCPC_ALERT_RX_STATUS)
		process_rx(chip, status);

		@@ -442,6 +455,7 @@ static int max_tcpci_probe(struct i2c_client *client, const struct i2c_device_id
		chip->data.init = tcpci_init;
		chip->data.frs_sourcing_vbus = max_tcpci_frs_sourcing_vbus;
		chip->data.auto_discharge_disconnect = true;
		chip->data.vbus_vsafe0v = true;

		max_tcpci_init_regs(chip);
		chip->tcpci = tcpci_register_port(chip->dev, &chip->data);