1 files changed, 17 insertions, 2 deletions

diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index fe781a38dc82..8da23240afbe 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -33,6 +33,7 @@ struct tcpci {
 	struct tcpm_port *port;
 
 	struct regmap *regmap;
+	unsigned int alert_mask;
 
 	bool controls_vbus;
 
@@ -403,6 +404,14 @@ static void tcpci_frs_sourcing_vbus(struct tcpc_dev *dev)
 		tcpci->data->frs_sourcing_vbus(tcpci, tcpci->data);
 }
 
+static void tcpci_check_contaminant(struct tcpc_dev *dev)
+{
+	struct tcpci *tcpci = tcpc_to_tcpci(dev);
+
+	if (tcpci->data->check_contaminant)
+		tcpci->data->check_contaminant(tcpci, tcpci->data);
+}
+
 static int tcpci_set_bist_data(struct tcpc_dev *tcpc, bool enable)
 {
 	struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
@@ -632,6 +641,9 @@ static int tcpci_init(struct tcpc_dev *tcpc)
 		if (ret < 0)
 			return ret;
 	}
+
+	tcpci->alert_mask = reg;
+
 	return tcpci_write16(tcpci, TCPC_ALERT_MASK, reg);
 }
 
@@ -715,7 +727,7 @@ irqreturn_t tcpci_irq(struct tcpci *tcpci)
 	else if (status & TCPC_ALERT_TX_FAILED)
 		tcpm_pd_transmit_complete(tcpci->port, TCPC_TX_FAILED);
 
-	return IRQ_HANDLED;
+	return IRQ_RETVAL(status & tcpci->alert_mask);
 }
 EXPORT_SYMBOL_GPL(tcpci_irq);
 
@@ -778,6 +790,9 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data)
 	tcpci->tcpc.frs_sourcing_vbus = tcpci_frs_sourcing_vbus;
 	tcpci->tcpc.set_partner_usb_comm_capable = tcpci_set_partner_usb_comm_capable;
 
+	if (tcpci->data->check_contaminant)
+		tcpci->tcpc.check_contaminant = tcpci_check_contaminant;
+
 	if (tcpci->data->auto_discharge_disconnect) {
 		tcpci->tcpc.enable_auto_vbus_discharge = tcpci_enable_auto_vbus_discharge;
 		tcpci->tcpc.set_auto_vbus_discharge_threshold =
@@ -838,7 +853,7 @@ static int tcpci_probe(struct i2c_client *client)
 
 	err = devm_request_threaded_irq(&client->dev, client->irq, NULL,
 					_tcpci_irq,
-					IRQF_ONESHOT | IRQF_TRIGGER_LOW,
+					IRQF_SHARED | IRQF_ONESHOT | IRQF_TRIGGER_LOW,
 					dev_name(&client->dev), chip);
 	if (err < 0) {
 		tcpci_unregister_port(chip->tcpci);