diff --git a/board/amenia/board.c b/board/amenia/board.c
index 56d02895b5..a019ba0a5e 100644
--- a/board/amenia/board.c
+++ b/board/amenia/board.c
@@ -139,8 +139,10 @@ const struct i2c_port_t i2c_ports[]  = {
 const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
 
 const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
-	{I2C_PORT_TCPC0, TCPC0_I2C_ADDR, &anx74xx_tcpm_drv},
-	{I2C_PORT_TCPC1, TCPC1_I2C_ADDR, &tcpci_tcpm_drv},
+	{I2C_PORT_TCPC0, TCPC0_I2C_ADDR, &anx74xx_tcpm_drv,
+		TCPC_ALERT_ACTIVE_HIGH},
+	{I2C_PORT_TCPC1, TCPC1_I2C_ADDR, &tcpci_tcpm_drv,
+		TCPC_ALERT_ACTIVE_LOW},
 };
 
 const enum gpio_signal hibernate_wake_pins[] = {
diff --git a/board/amenia/board.h b/board/amenia/board.h
index 5833543fb1..c1d0e16c43 100644
--- a/board/amenia/board.h
+++ b/board/amenia/board.h
@@ -88,7 +88,6 @@
 #define CONFIG_USB_PD_PORT_COUNT 2
 #define CONFIG_USB_PD_TCPM_ANX74XX
 #define  TCPC0_I2C_ADDR 0x50
-#define  ANX74XX_INT_ACTIVE_POLARITY ANX74XX_REG_IRQ_POL_HIGH
 #define CONFIG_USB_PD_TCPM_PS8751
 #define CONFIG_USB_PD_TCPM_TCPCI
 #define  TCPC1_I2C_ADDR 0x16
diff --git a/board/reef/board.c b/board/reef/board.c
index 87bcc263fa..032fc79cce 100644
--- a/board/reef/board.c
+++ b/board/reef/board.c
@@ -126,8 +126,8 @@ const struct i2c_port_t i2c_ports[]  = {
 const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
 
 const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
-	{NPCX_I2C_PORT0_0, 0x50, &anx74xx_tcpm_drv},
-	{NPCX_I2C_PORT0_1, 0x16, &tcpci_tcpm_drv},
+	{NPCX_I2C_PORT0_0, 0x50, &anx74xx_tcpm_drv, TCPC_ALERT_ACTIVE_HIGH},
+	{NPCX_I2C_PORT0_1, 0x16, &tcpci_tcpm_drv, TCPC_ALERT_ACTIVE_LOW},
 };
 
 uint16_t tcpc_get_alert_status(void)
diff --git a/driver/tcpm/anx74xx.c b/driver/tcpm/anx74xx.c
index ed38fccb23..bd5032376c 100644
--- a/driver/tcpm/anx74xx.c
+++ b/driver/tcpm/anx74xx.c
@@ -762,7 +762,9 @@ int anx74xx_tcpm_init(int port)
 
 	/* Initialize interrupt polarity */
 	rv |= tcpc_write(port, ANX74XX_REG_IRQ_STATUS,
-			ANX74XX_INT_ACTIVE_POLARITY);
+			tcpc_config[port].pol == TCPC_ALERT_ACTIVE_LOW ?
+			ANX74XX_REG_IRQ_POL_LOW :
+			ANX74XX_REG_IRQ_POL_HIGH);
 
 	/* unmask interrupts */
 	rv |= tcpc_read(port, ANX74XX_REG_IRQ_EXT_MASK_1, &reg);
diff --git a/driver/tcpm/anx74xx.h b/driver/tcpm/anx74xx.h
index 972be9648a..e395083d33 100644
--- a/driver/tcpm/anx74xx.h
+++ b/driver/tcpm/anx74xx.h
@@ -12,7 +12,6 @@
 
 #define ANX74XX_REG_IRQ_POL_LOW		0x00
 #define ANX74XX_REG_IRQ_POL_HIGH		0x02
-#define ANX74XX_INT_ACTIVE_POLARITY ANX74XX_REG_IRQ_POL_HIGH
 
 #define ANX74XX_REG_IRQ_STATUS		0x53
 
diff --git a/include/usb_pd_tcpm.h b/include/usb_pd_tcpm.h
index 90dae03fd2..ab7123676b 100644
--- a/include/usb_pd_tcpm.h
+++ b/include/usb_pd_tcpm.h
@@ -161,10 +161,16 @@ struct tcpm_drv {
 	void (*tcpc_alert)(int port);
 };
 
+enum tcpc_alert_polarity {
+	TCPC_ALERT_ACTIVE_LOW,
+	TCPC_ALERT_ACTIVE_HIGH,
+};
+
 struct tcpc_config_t {
 	int i2c_host_port;
 	int i2c_slave_addr;
 	const struct tcpm_drv *drv;
+	enum tcpc_alert_polarity pol;
 };
 
 /**