trogdor: Move USB-C related functions and configs to usbc_config.c

Move the functions and configs from board.c into the shared file,
usbc_config.c. So this code can be used by Zephyr.

BRANCH=None
BUG=b:191803008
TEST=Built the trogdor image and checked PD negotiation.

Change-Id: I500baf13705d18517332992fd83258fe69735a3a
Signed-off-by: Wai-Hong Tam <waihong@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2980446
Reviewed-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Keith Short <keithshort@chromium.org>

3 files changed, 323 insertions, 294 deletions

diff --git a/board/trogdor/board.c b/board/trogdor/board.c
index 8b0d3fc313..470f117a14 100644
--- a/board/trogdor/board.c
+++ b/board/trogdor/board.c
@@ -7,19 +7,13 @@
 
 #include "adc_chip.h"
 #include "button.h"
-#include "charge_manager.h"
-#include "charge_state.h"
 #include "extpower.h"
 #include "driver/accel_bma2x2.h"
 #include "driver/accelgyro_bmi_common.h"
-#include "driver/ppc/sn5s330.h"
-#include "driver/tcpm/ps8xxx.h"
-#include "driver/tcpm/tcpci.h"
 #include "gpio.h"
 #include "hooks.h"
 #include "keyboard_scan.h"
 #include "lid_switch.h"
-#include "pi3usb9201.h"
 #include "power.h"
 #include "power_button.h"
 #include "pwm.h"
@@ -30,7 +24,6 @@
 #include "tablet_mode.h"
 #include "task.h"
 #include "usbc_config.h"
-#include "usbc_ocp.h"
 #include "usbc_ppc.h"
 
 #define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
@@ -38,62 +31,6 @@
 
 #include "gpio_list.h"
 
-/* GPIO Interrupt Handlers */
-void tcpc_alert_event(enum gpio_signal signal)
-{
-	int port = -1;
-
-	switch (signal) {
-	case GPIO_USB_C0_PD_INT_ODL:
-		port = 0;
-		break;
-	case GPIO_USB_C1_PD_INT_ODL:
-		port = 1;
-		break;
-	default:
-		return;
-	}
-
-	schedule_deferred_pd_interrupt(port);
-}
-
-void usb0_evt(enum gpio_signal signal)
-{
-	task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12);
-}
-
-void usb1_evt(enum gpio_signal signal)
-{
-	task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12);
-}
-
-static void usba_oc_deferred(void)
-{
-	/* Use next number after all USB-C ports to indicate the USB-A port */
-	board_overcurrent_event(CONFIG_USB_PD_PORT_MAX_COUNT,
-				!gpio_get_level(GPIO_USB_A0_OC_ODL));
-}
-DECLARE_DEFERRED(usba_oc_deferred);
-
-void usba_oc_interrupt(enum gpio_signal signal)
-{
-	hook_call_deferred(&usba_oc_deferred_data, 0);
-}
-
-void ppc_interrupt(enum gpio_signal signal)
-{
-	switch (signal) {
-	case GPIO_USB_C0_SWCTL_INT_ODL:
-		sn5s330_interrupt(0);
-		break;
-	case GPIO_USB_C1_SWCTL_INT_ODL:
-		sn5s330_interrupt(1);
-		break;
-	default:
-		break;
-	}
-}
-
 /* Keyboard scan setting */
 struct keyboard_scan_config keyscan_config = {
 	/* Use 80 us, because KSO_02 passes through the H1. */
@@ -174,87 +111,9 @@ const struct pwm_t pwm_channels[] = {
 };
 BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
 
-/* Power Path Controller */
-struct ppc_config_t ppc_chips[] = {
-	{
-		.i2c_port = I2C_PORT_TCPC0,
-		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
-		.drv = &sn5s330_drv
-	},
-	{
-		.i2c_port = I2C_PORT_TCPC1,
-		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
-		.drv = &sn5s330_drv
-	},
-};
-unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
-
-/* TCPC mux configuration */
-const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{
-		.bus_type = EC_BUS_TYPE_I2C,
-		.i2c_info = {
-			.port = I2C_PORT_TCPC0,
-			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
-		},
-		.drv = &ps8xxx_tcpm_drv,
-	},
-	{
-		.bus_type = EC_BUS_TYPE_I2C,
-		.i2c_info = {
-			.port = I2C_PORT_TCPC1,
-			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
-		},
-		.drv = &ps8xxx_tcpm_drv,
-	},
-};
-
-/*
- * Port-0/1 USB mux driver.
- *
- * The USB mux is handled by TCPC chip and the HPD update is through a GPIO
- * to AP. But the TCPC chip is also needed to know the HPD status; otherwise,
- * the mux misbehaves.
- */
-const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{
-		.usb_port = 0,
-		.driver = &tcpci_tcpm_usb_mux_driver,
-		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
-	},
-	{
-		.usb_port = 1,
-		.driver = &tcpci_tcpm_usb_mux_driver,
-		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
-	}
-};
-
-const int usb_port_enable[USB_PORT_COUNT] = {
-	GPIO_EN_USB_A_5V,
-};
-
-/* BC1.2 */
-const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
-	{
-		.i2c_port = I2C_PORT_POWER,
-		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
-	},
-	{
-		.i2c_port = I2C_PORT_EEPROM,
-		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
-	},
-};
-
 /* Initialize board. */
 static void board_init(void)
 {
-	/* Enable BC1.2 interrupts */
-	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L);
-	gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);
-
-	/* Enable USB-A overcurrent interrupt */
-	gpio_enable_interrupt(GPIO_USB_A0_OC_ODL);
-
 	/* Enable interrupt for BMI160 sensor */
 	gpio_enable_interrupt(GPIO_ACCEL_GYRO_INT_L);
 
@@ -263,30 +122,6 @@ static void board_init(void)
 }
 DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
 
-void board_tcpc_init(void)
-{
-	/* Only reset TCPC if not sysjump */
-	if (!system_jumped_late()) {
-		/* TODO(crosbug.com/p/61098): How long do we need to wait? */
-		board_reset_pd_mcu();
-	}
-
-	/* Enable PPC interrupts */
-	gpio_enable_interrupt(GPIO_USB_C0_SWCTL_INT_ODL);
-
-	/* Enable TCPC interrupts */
-	gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
-	gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
-
-	/*
-	 * Initialize HPD to low; after sysjump SOC needs to see
-	 * HPD pulse to enable video path
-	 */
-	for (int port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; ++port)
-		usb_mux_hpd_update(port, 0, 0);
-}
-DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1);
-
 void board_hibernate(void)
 {
 	/*
@@ -321,134 +156,6 @@ static void board_chipset_resume(void)
 }
 DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
 
-void board_reset_pd_mcu(void)
-{
-	cprints(CC_USB, "Resetting TCPCs...");
-	cflush();
-
-	gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);
-	gpio_set_level(GPIO_USB_C1_PD_RST_L, 0);
-	msleep(PS8XXX_RESET_DELAY_MS);
-	gpio_set_level(GPIO_USB_C0_PD_RST_L, 1);
-	gpio_set_level(GPIO_USB_C1_PD_RST_L, 1);
-	msleep(PS8805_FW_INIT_DELAY_MS);
-}
-
-void board_set_tcpc_power_mode(int port, int mode)
-{
-	/* Ignore the "mode" to turn the chip on.  We can only do a reset. */
-	if (mode)
-		return;
-
-	board_reset_pd_mcu();
-}
-
-int board_vbus_sink_enable(int port, int enable)
-{
-	/* Both ports are controlled by PPC SN5S330 */
-	return ppc_vbus_sink_enable(port, enable);
-}
-
-int board_is_sourcing_vbus(int port)
-{
-	/* Both ports are controlled by PPC SN5S330 */
-	return ppc_is_sourcing_vbus(port);
-}
-
-void board_overcurrent_event(int port, int is_overcurrented)
-{
-	/* TODO(b/120231371): Notify AP */
-	CPRINTS("p%d: overcurrent!", port);
-}
-
-int board_set_active_charge_port(int port)
-{
-	int is_real_port = (port >= 0 &&
-			    port < CONFIG_USB_PD_PORT_MAX_COUNT);
-	int i;
-
-	if (!is_real_port && port != CHARGE_PORT_NONE)
-		return EC_ERROR_INVAL;
-
-	if (port == CHARGE_PORT_NONE) {
-		CPRINTS("Disabling all charging port");
-
-		/* Disable all ports. */
-		for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
-			/*
-			 * Do not return early if one fails otherwise we can
-			 * get into a boot loop assertion failure.
-			 */
-			if (board_vbus_sink_enable(i, 0))
-				CPRINTS("Disabling p%d sink path failed.", i);
-		}
-
-		return EC_SUCCESS;
-	}
-
-	/* Check if the port is sourcing VBUS. */
-	if (board_is_sourcing_vbus(port)) {
-		CPRINTS("Skip enable p%d", port);
-		return EC_ERROR_INVAL;
-	}
-
-
-	CPRINTS("New charge port: p%d", port);
-
-	/*
-	 * Turn off the other ports' sink path FETs, before enabling the
-	 * requested charge port.
-	 */
-	for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
-		if (i == port)
-			continue;
-
-		if (board_vbus_sink_enable(i, 0))
-			CPRINTS("p%d: sink path disable failed.", i);
-	}
-
-	/* Enable requested charge port. */
-	if (board_vbus_sink_enable(port, 1)) {
-		CPRINTS("p%d: sink path enable failed.", port);
-		return EC_ERROR_UNKNOWN;
-	}
-
-	return EC_SUCCESS;
-}
-
-void board_set_charge_limit(int port, int supplier, int charge_ma,
-			    int max_ma, int charge_mv)
-{
-	/*
-	 * Ignore lower charge ceiling on PD transition if our battery is
-	 * critical, as we may brownout.
-	 */
-	if (supplier == CHARGE_SUPPLIER_PD &&
-	    charge_ma < 1500 &&
-	    charge_get_percent() < CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON) {
-		CPRINTS("Using max ilim %d", max_ma);
-		charge_ma = max_ma;
-	}
-
-	charge_set_input_current_limit(MAX(charge_ma,
-					   CONFIG_CHARGER_INPUT_CURRENT),
-				       charge_mv);
-}
-
-uint16_t tcpc_get_alert_status(void)
-{
-	uint16_t status = 0;
-
-	if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL))
-		if (gpio_get_level(GPIO_USB_C0_PD_RST_L))
-			status |= PD_STATUS_TCPC_ALERT_0;
-	if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL))
-		if (gpio_get_level(GPIO_USB_C1_PD_RST_L))
-			status |= PD_STATUS_TCPC_ALERT_1;
-
-	return status;
-}
-
 /* Mutexes */
 static struct mutex g_base_mutex;
 static struct mutex g_lid_mutex;
diff --git a/board/trogdor/build.mk b/board/trogdor/build.mk
index 2fff43af4c..0d71877c98 100644
--- a/board/trogdor/build.mk
+++ b/board/trogdor/build.mk
@@ -11,4 +11,8 @@ CHIP_FAMILY:=npcx7
 CHIP_VARIANT:=npcx7m6fc
 BASEBOARD:=trogdor
 
-board-y=battery.o board.o led.o switchcap.o
+board-y+=battery.o
+board-y+=board.o
+board-y+=led.o
+board-y+=switchcap.o
+board-y+=usbc_config.o
diff --git a/board/trogdor/usbc_config.c b/board/trogdor/usbc_config.c
new file mode 100644
index 0000000000..f3ca3b0f2a
--- /dev/null
+++ b/board/trogdor/usbc_config.c
@@ -0,0 +1,318 @@
+/* Copyright 2021 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Trogdor board-specific USB-C configuration */
+
+#include "bc12/pi3usb9201_public.h"
+#include "charge_manager.h"
+#include "charge_state.h"
+#include "common.h"
+#include "config.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "ppc/sn5s330_public.h"
+#include "system.h"
+#include "tcpm/ps8xxx_public.h"
+#include "tcpm/tcpci.h"
+#include "timer.h"
+#include "usb_pd.h"
+#include "usbc_config.h"
+#include "usb_mux.h"
+#include "usbc_ocp.h"
+#include "usbc_ppc.h"
+
+#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
+#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
+
+/* GPIO Interrupt Handlers */
+void tcpc_alert_event(enum gpio_signal signal)
+{
+	int port = -1;
+
+	switch (signal) {
+	case GPIO_USB_C0_PD_INT_ODL:
+		port = 0;
+		break;
+	case GPIO_USB_C1_PD_INT_ODL:
+		port = 1;
+		break;
+	default:
+		return;
+	}
+
+	schedule_deferred_pd_interrupt(port);
+}
+
+void usb0_evt(enum gpio_signal signal)
+{
+	task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12);
+}
+
+void usb1_evt(enum gpio_signal signal)
+{
+	task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12);
+}
+
+static void usba_oc_deferred(void)
+{
+	/* Use next number after all USB-C ports to indicate the USB-A port */
+	board_overcurrent_event(CONFIG_USB_PD_PORT_MAX_COUNT,
+				!gpio_get_level(GPIO_USB_A0_OC_ODL));
+}
+DECLARE_DEFERRED(usba_oc_deferred);
+
+void usba_oc_interrupt(enum gpio_signal signal)
+{
+	hook_call_deferred(&usba_oc_deferred_data, 0);
+}
+
+void ppc_interrupt(enum gpio_signal signal)
+{
+	switch (signal) {
+	case GPIO_USB_C0_SWCTL_INT_ODL:
+		sn5s330_interrupt(0);
+		break;
+	case GPIO_USB_C1_SWCTL_INT_ODL:
+		sn5s330_interrupt(1);
+		break;
+	default:
+		break;
+	}
+}
+
+/* Power Path Controller */
+struct ppc_config_t ppc_chips[] = {
+	{
+		.i2c_port = I2C_PORT_TCPC0,
+		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
+		.drv = &sn5s330_drv
+	},
+	{
+		.i2c_port = I2C_PORT_TCPC1,
+		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
+		.drv = &sn5s330_drv
+	},
+};
+unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
+
+/* TCPC mux configuration */
+const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.bus_type = EC_BUS_TYPE_I2C,
+		.i2c_info = {
+			.port = I2C_PORT_TCPC0,
+			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
+		},
+		.drv = &ps8xxx_tcpm_drv,
+	},
+	{
+		.bus_type = EC_BUS_TYPE_I2C,
+		.i2c_info = {
+			.port = I2C_PORT_TCPC1,
+			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
+		},
+		.drv = &ps8xxx_tcpm_drv,
+	},
+};
+
+/*
+ * Port-0/1 USB mux driver.
+ *
+ * The USB mux is handled by TCPC chip and the HPD update is through a GPIO
+ * to AP. But the TCPC chip is also needed to know the HPD status; otherwise,
+ * the mux misbehaves.
+ */
+const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.usb_port = 0,
+		.driver = &tcpci_tcpm_usb_mux_driver,
+		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
+	},
+	{
+		.usb_port = 1,
+		.driver = &tcpci_tcpm_usb_mux_driver,
+		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
+	}
+};
+
+const int usb_port_enable[USB_PORT_COUNT] = {
+	GPIO_EN_USB_A_5V,
+};
+
+/* BC1.2 */
+const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
+	{
+		.i2c_port = I2C_PORT_POWER,
+		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
+	},
+	{
+		.i2c_port = I2C_PORT_EEPROM,
+		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
+	},
+};
+
+/* Initialize board USC-C things */
+static void board_init_usbc(void)
+{
+	/* Enable BC1.2 interrupts */
+	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L);
+	gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);
+
+	/* Enable USB-A overcurrent interrupt */
+	gpio_enable_interrupt(GPIO_USB_A0_OC_ODL);
+}
+DECLARE_HOOK(HOOK_INIT, board_init_usbc, HOOK_PRIO_DEFAULT);
+
+void board_tcpc_init(void)
+{
+	/* Only reset TCPC if not sysjump */
+	if (!system_jumped_late()) {
+		/* TODO(crosbug.com/p/61098): How long do we need to wait? */
+		board_reset_pd_mcu();
+	}
+
+	/* Enable PPC interrupts */
+	gpio_enable_interrupt(GPIO_USB_C0_SWCTL_INT_ODL);
+
+	/* Enable TCPC interrupts */
+	gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
+	gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
+
+	/*
+	 * Initialize HPD to low; after sysjump SOC needs to see
+	 * HPD pulse to enable video path
+	 */
+	for (int port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; ++port)
+		usb_mux_hpd_update(port, 0, 0);
+}
+DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C + 1);
+
+void board_reset_pd_mcu(void)
+{
+	cprints(CC_USB, "Resetting TCPCs...");
+	cflush();
+
+	gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);
+	gpio_set_level(GPIO_USB_C1_PD_RST_L, 0);
+	msleep(PS8XXX_RESET_DELAY_MS);
+	gpio_set_level(GPIO_USB_C0_PD_RST_L, 1);
+	gpio_set_level(GPIO_USB_C1_PD_RST_L, 1);
+	msleep(PS8805_FW_INIT_DELAY_MS);
+}
+
+void board_set_tcpc_power_mode(int port, int mode)
+{
+	/* Ignore the "mode" to turn the chip on.  We can only do a reset. */
+	if (mode)
+		return;
+
+	board_reset_pd_mcu();
+}
+
+int board_vbus_sink_enable(int port, int enable)
+{
+	/* Both ports are controlled by PPC SN5S330 */
+	return ppc_vbus_sink_enable(port, enable);
+}
+
+int board_is_sourcing_vbus(int port)
+{
+	/* Both ports are controlled by PPC SN5S330 */
+	return ppc_is_sourcing_vbus(port);
+}
+
+void board_overcurrent_event(int port, int is_overcurrented)
+{
+	/* TODO(b/120231371): Notify AP */
+	CPRINTS("p%d: overcurrent!", port);
+}
+
+int board_set_active_charge_port(int port)
+{
+	int is_real_port = (port >= 0 &&
+			    port < CONFIG_USB_PD_PORT_MAX_COUNT);
+	int i;
+
+	if (!is_real_port && port != CHARGE_PORT_NONE)
+		return EC_ERROR_INVAL;
+
+	if (port == CHARGE_PORT_NONE) {
+		CPRINTS("Disabling all charging port");
+
+		/* Disable all ports. */
+		for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
+			/*
+			 * Do not return early if one fails otherwise we can
+			 * get into a boot loop assertion failure.
+			 */
+			if (board_vbus_sink_enable(i, 0))
+				CPRINTS("Disabling p%d sink path failed.", i);
+		}
+
+		return EC_SUCCESS;
+	}
+
+	/* Check if the port is sourcing VBUS. */
+	if (board_is_sourcing_vbus(port)) {
+		CPRINTS("Skip enable p%d", port);
+		return EC_ERROR_INVAL;
+	}
+
+
+	CPRINTS("New charge port: p%d", port);
+
+	/*
+	 * Turn off the other ports' sink path FETs, before enabling the
+	 * requested charge port.
+	 */
+	for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
+		if (i == port)
+			continue;
+
+		if (board_vbus_sink_enable(i, 0))
+			CPRINTS("p%d: sink path disable failed.", i);
+	}
+
+	/* Enable requested charge port. */
+	if (board_vbus_sink_enable(port, 1)) {
+		CPRINTS("p%d: sink path enable failed.", port);
+		return EC_ERROR_UNKNOWN;
+	}
+
+	return EC_SUCCESS;
+}
+
+void board_set_charge_limit(int port, int supplier, int charge_ma,
+			    int max_ma, int charge_mv)
+{
+	/*
+	 * Ignore lower charge ceiling on PD transition if our battery is
+	 * critical, as we may brownout.
+	 */
+	if (supplier == CHARGE_SUPPLIER_PD &&
+	    charge_ma < 1500 &&
+	    charge_get_percent() < CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON) {
+		CPRINTS("Using max ilim %d", max_ma);
+		charge_ma = max_ma;
+	}
+
+	charge_set_input_current_limit(MAX(charge_ma,
+					   CONFIG_CHARGER_INPUT_CURRENT),
+				       charge_mv);
+}
+
+uint16_t tcpc_get_alert_status(void)
+{
+	uint16_t status = 0;
+
+	if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL))
+		if (gpio_get_level(GPIO_USB_C0_PD_RST_L))
+			status |= PD_STATUS_TCPC_ALERT_0;
+	if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL))
+		if (gpio_get_level(GPIO_USB_C1_PD_RST_L))
+			status |= PD_STATUS_TCPC_ALERT_1;
+
+	return status;
+}