drivers/gpio/gpio_rt1718s_port.c - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /*
  * Copyright 2022 Google LLC
  *
  * SPDX-License-Identifier: Apache-2.0
  */

 #define DT_DRV_COMPAT richtek_rt1718s_gpio_port

 /**
  * @file Driver for RS1718S TCPC chip GPIOs.
  */

 #include "gpio_rt1718s.h"

 #include <zephyr/drivers/gpio.h>
 #include <zephyr/drivers/gpio/gpio_utils.h>
 #include <zephyr/logging/log.h>
 LOG_MODULE_DECLARE(gpio_rt1718s_port, CONFIG_GPIO_LOG_LEVEL);

 /* Driver config */
 struct gpio_rt1718s_port_config {
 	/* gpio_driver_config needs to be first */
 	struct gpio_driver_config common;
 	/* RT1718S chip device */
 	const struct device *rt1718s_dev;
 };

 /* Driver data */
 struct gpio_rt1718s_port_data {
 	/* gpio_driver_data needs to be first */
 	struct gpio_driver_data common;
 	/* GPIO callback list */
 	sys_slist_t cb_list_gpio;
 	/* lock GPIO registers access */
 	struct k_sem lock;
 };

 /* GPIO api functions */
 static int gpio_rt1718s_pin_config(const struct device *dev, gpio_pin_t pin, gpio_flags_t flags)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data = dev->data;
 	uint8_t new_reg = 0;
 	int ret = 0;

 	/* Don't support simultaneous in/out mode */
 	if ((flags & GPIO_INPUT) && (flags & GPIO_OUTPUT)) {
 		return -ENOTSUP;
 	}

 	/* Don't support "open source" mode */
 	if ((flags & GPIO_SINGLE_ENDED) && !(flags & GPIO_LINE_OPEN_DRAIN)) {
 		return -ENOTSUP;
 	}

 	/* RT1718S has 3 GPIOs so check range */
 	if (pin >= RT1718S_GPIO_NUM) {
 		return -EINVAL;
 	}

 	/* Configure pin as input. */
 	if (flags & GPIO_INPUT) {
 		/* Do not set RT1718S_REG_GPIO_CTRL_OE bit for input */
 		/* Set pull-high/low input */
 		if (flags & GPIO_PULL_UP) {
 			new_reg |= RT1718S_REG_GPIO_CTRL_PU;
 		}
 		if (flags & GPIO_PULL_DOWN) {
 			new_reg |= RT1718S_REG_GPIO_CTRL_PD;
 		}
 	} else if (flags & GPIO_OUTPUT) {
 		/* Set GPIO as output */
 		new_reg |= RT1718S_REG_GPIO_CTRL_OE;

 		/* Set push-pull or open-drain */
 		if (!(flags & GPIO_SINGLE_ENDED)) {
 			new_reg |= RT1718S_REG_GPIO_CTRL_OD_N;
 		}

 		/* Set init state */
 		if (flags & GPIO_OUTPUT_INIT_HIGH) {
 			new_reg |= RT1718S_REG_GPIO_CTRL_O;
 		}
 	}

 	k_sem_take(&data->lock, K_FOREVER);
 	ret = rt1718s_reg_write_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin), new_reg);
 	k_sem_give(&data->lock);

 	return ret;
 }

 static int gpio_rt1718s_port_get_raw(const struct device *dev, gpio_port_value_t *value)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	uint8_t reg;
 	int ret;

 	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_RT_ST8, &reg);
 	*value = reg & (RT1718S_REG_RT_ST8_GPIO1_I | RT1718S_REG_RT_ST8_GPIO2_I |
 			RT1718S_REG_RT_ST8_GPIO3_I);

 	return ret;
 }

 static int gpio_rt1718s_port_set_masked_raw(const struct device *dev, gpio_port_pins_t mask,
 					    gpio_port_value_t value)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data = dev->data;
 	uint8_t new_reg, reg;
 	int ret = 0;

 	k_sem_take(&data->lock, K_FOREVER);

 	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
 		if (mask & BIT(pin)) {
 			ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						    &reg);
 			if (ret < 0) {
 				break;
 			}

 			if (value & BIT(pin)) {
 				new_reg = reg | RT1718S_REG_GPIO_CTRL_O;
 			} else {
 				new_reg = reg & ~RT1718S_REG_GPIO_CTRL_O;
 			}
 			ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						 reg, new_reg);
 		}
 	}

 	k_sem_give(&data->lock);

 	return ret;
 }

 static int gpio_rt1718s_port_set_bits_raw(const struct device *dev, gpio_port_pins_t mask)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data = dev->data;
 	uint8_t new_reg, reg;
 	int ret = 0;

 	k_sem_take(&data->lock, K_FOREVER);

 	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
 		if (mask & BIT(pin)) {
 			ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						    &reg);
 			if (ret < 0) {
 				break;
 			}
 			new_reg = reg | RT1718S_REG_GPIO_CTRL_O;
 			ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						 reg, new_reg);
 		}
 	}

 	k_sem_give(&data->lock);

 	return ret;
 }

 static int gpio_rt1718s_port_clear_bits_raw(const struct device *dev, gpio_port_pins_t mask)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data = dev->data;
 	uint8_t new_reg, reg;
 	int ret = 0;

 	k_sem_take(&data->lock, K_FOREVER);

 	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
 		if (mask & BIT(pin)) {
 			ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						    &reg);
 			if (ret < 0) {
 				break;
 			}
 			new_reg = reg & ~RT1718S_REG_GPIO_CTRL_O;
 			ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						 reg, new_reg);
 		}
 	}

 	k_sem_give(&data->lock);

 	return ret;
 }

 static int gpio_rt1718s_port_toggle_bits(const struct device *dev, gpio_port_pins_t mask)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data = dev->data;
 	uint8_t new_reg, reg;
 	int ret = 0;

 	k_sem_take(&data->lock, K_FOREVER);

 	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
 		if (mask & BIT(pin)) {
 			ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						    &reg);
 			if (ret < 0) {
 				break;
 			}
 			new_reg = reg ^ RT1718S_REG_GPIO_CTRL_O;
 			ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
 						 reg, new_reg);
 		}
 	}

 	k_sem_give(&data->lock);

 	return ret;
 }

 static int gpio_rt1718s_pin_interrupt_configure(const struct device *dev, gpio_pin_t pin,
 						enum gpio_int_mode mode, enum gpio_int_trig trig)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data = dev->data;
 	struct rt1718s_data *const data_rt1718s = config->rt1718s_dev->data;
 	uint8_t reg_int8, reg_mask8, new_reg_mask8 = 0;
 	uint8_t mask_rise = BIT(pin), mask_fall = BIT(4 + pin);
 	uint16_t alert_mask;
 	int ret;

 	/* Check passed arguments */
 	if (mode == GPIO_INT_MODE_LEVEL || pin >= RT1718S_GPIO_NUM) {
 		return -ENOTSUP;
 	}

 	k_sem_take(&data->lock, K_FOREVER);
 	k_sem_take(&data_rt1718s->lock_tcpci, K_FOREVER);

 	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_RT_MASK8, &reg_mask8);
 	if (ret < 0) {
 		goto done;
 	}

 	/* Disable GPIO interrupt */
 	if (mode == GPIO_INT_MODE_DISABLED) {
 		new_reg_mask8 = reg_mask8 & ~(mask_rise | mask_fall);
 	} else if (mode == GPIO_INT_MODE_EDGE) {
 		switch (trig) {
 		case GPIO_INT_TRIG_BOTH:
 			new_reg_mask8 = reg_mask8 | mask_rise | mask_fall;
 			break;
 		case GPIO_INT_TRIG_HIGH:
 			new_reg_mask8 = (reg_mask8 | mask_rise) & ~mask_fall;
 			break;
 		case GPIO_INT_TRIG_LOW:
 			new_reg_mask8 = (reg_mask8 | mask_fall) & ~mask_rise;
 			break;
 		}

 		ret = rt1718s_reg_burst_read(config->rt1718s_dev, RT1718S_REG_ALERT_MASK,
 					     (uint8_t *)&alert_mask, sizeof(alert_mask));
 		if (ret) {
 			goto done;
 		}

 		/* Enable Vendor Defined Alert for GPIO interrupts */
 		if (!(alert_mask & RT1718S_REG_ALERT_MASK_VENDOR_DEFINED_ALERT)) {
 			alert_mask |= RT1718S_REG_ALERT_MASK_VENDOR_DEFINED_ALERT;
 			ret = rt1718s_reg_burst_write(config->rt1718s_dev, RT1718S_REG_ALERT_MASK,
 						      (uint8_t *)&alert_mask, sizeof(alert_mask));

 			if (ret) {
 				goto done;
 			}
 		}

 		/* Clear pending interrupts, which were trigger before enabling the pin
 		 * interrupt by user.
 		 */
 		reg_int8 = mask_rise | mask_fall;
 		rt1718s_reg_write_byte(config->rt1718s_dev, RT1718S_REG_RT_INT8, reg_int8);
 	}

 	/* MASK8 handles 3 GPIOs interrupts, both edges */
 	ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_RT_MASK8, reg_mask8,
 				 new_reg_mask8);

 done:
 	k_sem_give(&data_rt1718s->lock_tcpci);
 	k_sem_give(&data->lock);

 	return ret;
 }

 static int gpio_rt1718s_manage_callback(const struct device *dev, struct gpio_callback *callback,
 					bool set)
 {
 	struct gpio_rt1718s_port_data *const data = dev->data;

 	return gpio_manage_callback(&data->cb_list_gpio, callback, set);
 }

 void rt1718s_gpio_alert_handler(const struct device *dev)
 {
 	const struct rt1718s_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data_port = config->gpio_port_dev->data;
 	uint8_t reg_int8, reg_mask8;

 	k_sem_take(&data_port->lock, K_FOREVER);

 	/* Get mask and state of GPIO interrupts */
 	if (rt1718s_reg_read_byte(dev, RT1718S_REG_RT_INT8, &reg_int8) ||
 	    rt1718s_reg_read_byte(dev, RT1718S_REG_RT_MASK8, &reg_mask8)) {
 		k_sem_give(&data_port->lock);
 		LOG_ERR("i2c access failed");
 		return;
 	}

 	reg_int8 &= reg_mask8;
 	/* Clear the interrupts */
 	if (reg_int8) {
 		if (rt1718s_reg_write_byte(dev, RT1718S_REG_RT_INT8, reg_int8)) {
 			k_sem_give(&data_port->lock);
 			LOG_ERR("i2c access failed");
 			return;
 		}
 	}

 	k_sem_give(&data_port->lock);

 	if (reg_int8 & RT1718S_GPIO_INT_MASK)
 		/* Call the GPIO callbacks for rising *or* falling edge */
 		gpio_fire_callbacks(&data_port->cb_list_gpio, config->gpio_port_dev,
 				    (reg_int8 & 0x7) | ((reg_int8 >> 4) & 0x7));
 }

 static const struct gpio_driver_api gpio_rt1718s_driver = {
 	.pin_configure = gpio_rt1718s_pin_config,
 	.port_get_raw = gpio_rt1718s_port_get_raw,
 	.port_set_masked_raw = gpio_rt1718s_port_set_masked_raw,
 	.port_set_bits_raw = gpio_rt1718s_port_set_bits_raw,
 	.port_clear_bits_raw = gpio_rt1718s_port_clear_bits_raw,
 	.port_toggle_bits = gpio_rt1718s_port_toggle_bits,
 	.pin_interrupt_configure = gpio_rt1718s_pin_interrupt_configure,
 	.manage_callback = gpio_rt1718s_manage_callback,
 };

 static int gpio_rt1718s_port_init(const struct device *dev)
 {
 	const struct gpio_rt1718s_port_config *const config = dev->config;
 	struct gpio_rt1718s_port_data *const data = dev->data;

 	if (!device_is_ready(config->rt1718s_dev)) {
 		LOG_ERR("%s is not ready", config->rt1718s_dev->name);
 		return -ENODEV;
 	}

 	k_sem_init(&data->lock, 1, 1);

 	return 0;
 }

 /* RT1718S GPIO port driver must be initialized after RT1718S chip driver */
 BUILD_ASSERT(CONFIG_GPIO_RT1718S_PORT_INIT_PRIORITY > CONFIG_RT1718S_INIT_PRIORITY);

 #define GPIO_RT1718S_PORT_DEVICE_INSTANCE(inst)                                                    \
 	static const struct gpio_rt1718s_port_config gpio_rt1718s_port_cfg_##inst = {              \
 		.common = {.port_pin_mask = 0x7},                                                  \
 		.rt1718s_dev = DEVICE_DT_GET(DT_INST_PARENT(inst)),                                \
 	};                                                                                         \
 	static struct gpio_rt1718s_port_data gpio_rt1718s_port_data_##inst;                        \
 	DEVICE_DT_INST_DEFINE(inst, gpio_rt1718s_port_init, NULL, &gpio_rt1718s_port_data_##inst,  \
 			      &gpio_rt1718s_port_cfg_##inst, POST_KERNEL,                          \
 			      CONFIG_GPIO_RT1718S_PORT_INIT_PRIORITY, &gpio_rt1718s_driver);

 DT_INST_FOREACH_STATUS_OKAY(GPIO_RT1718S_PORT_DEVICE_INSTANCE)
	/*
	* Copyright 2022 Google LLC
	*
	* SPDX-License-Identifier: Apache-2.0
	*/

	#define DT_DRV_COMPAT richtek_rt1718s_gpio_port

	/**
	* @file Driver for RS1718S TCPC chip GPIOs.
	*/

	#include "gpio_rt1718s.h"

	#include <zephyr/drivers/gpio.h>
	#include <zephyr/drivers/gpio/gpio_utils.h>
	#include <zephyr/logging/log.h>
	LOG_MODULE_DECLARE(gpio_rt1718s_port, CONFIG_GPIO_LOG_LEVEL);

	/* Driver config */
	struct gpio_rt1718s_port_config {
	/* gpio_driver_config needs to be first */
	struct gpio_driver_config common;
	/* RT1718S chip device */
	const struct device *rt1718s_dev;
	};

	/* Driver data */
	struct gpio_rt1718s_port_data {
	/* gpio_driver_data needs to be first */
	struct gpio_driver_data common;
	/* GPIO callback list */
	sys_slist_t cb_list_gpio;
	/* lock GPIO registers access */
	struct k_sem lock;
	};

	/* GPIO api functions */
	static int gpio_rt1718s_pin_config(const struct device *dev, gpio_pin_t pin, gpio_flags_t flags)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data = dev->data;
	uint8_t new_reg = 0;
	int ret = 0;

	/* Don't support simultaneous in/out mode */
	if ((flags & GPIO_INPUT) && (flags & GPIO_OUTPUT)) {
	return -ENOTSUP;
	}

	/* Don't support "open source" mode */
	if ((flags & GPIO_SINGLE_ENDED) && !(flags & GPIO_LINE_OPEN_DRAIN)) {
	return -ENOTSUP;
	}

	/* RT1718S has 3 GPIOs so check range */
	if (pin >= RT1718S_GPIO_NUM) {
	return -EINVAL;
	}

	/* Configure pin as input. */
	if (flags & GPIO_INPUT) {
	/* Do not set RT1718S_REG_GPIO_CTRL_OE bit for input */
	/* Set pull-high/low input */
	if (flags & GPIO_PULL_UP) {
	new_reg \|= RT1718S_REG_GPIO_CTRL_PU;
	}
	if (flags & GPIO_PULL_DOWN) {
	new_reg \|= RT1718S_REG_GPIO_CTRL_PD;
	}
	} else if (flags & GPIO_OUTPUT) {
	/* Set GPIO as output */
	new_reg \|= RT1718S_REG_GPIO_CTRL_OE;

	/* Set push-pull or open-drain */
	if (!(flags & GPIO_SINGLE_ENDED)) {
	new_reg \|= RT1718S_REG_GPIO_CTRL_OD_N;
	}

	/* Set init state */
	if (flags & GPIO_OUTPUT_INIT_HIGH) {
	new_reg \|= RT1718S_REG_GPIO_CTRL_O;
	}
	}

	k_sem_take(&data->lock, K_FOREVER);
	ret = rt1718s_reg_write_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin), new_reg);
	k_sem_give(&data->lock);

	return ret;
	}

	static int gpio_rt1718s_port_get_raw(const struct device dev, gpio_port_value_t value)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	uint8_t reg;
	int ret;

	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_RT_ST8, &reg);
	*value = reg & (RT1718S_REG_RT_ST8_GPIO1_I \| RT1718S_REG_RT_ST8_GPIO2_I \|
	RT1718S_REG_RT_ST8_GPIO3_I);

	return ret;
	}

	static int gpio_rt1718s_port_set_masked_raw(const struct device *dev, gpio_port_pins_t mask,
	gpio_port_value_t value)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data = dev->data;
	uint8_t new_reg, reg;
	int ret = 0;

	k_sem_take(&data->lock, K_FOREVER);

	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
	if (mask & BIT(pin)) {
	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	&reg);
	if (ret < 0) {
	break;
	}

	if (value & BIT(pin)) {
	new_reg = reg \| RT1718S_REG_GPIO_CTRL_O;
	} else {
	new_reg = reg & ~RT1718S_REG_GPIO_CTRL_O;
	}
	ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	reg, new_reg);
	}
	}

	k_sem_give(&data->lock);

	return ret;
	}

	static int gpio_rt1718s_port_set_bits_raw(const struct device *dev, gpio_port_pins_t mask)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data = dev->data;
	uint8_t new_reg, reg;
	int ret = 0;

	k_sem_take(&data->lock, K_FOREVER);

	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
	if (mask & BIT(pin)) {
	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	&reg);
	if (ret < 0) {
	break;
	}
	new_reg = reg \| RT1718S_REG_GPIO_CTRL_O;
	ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	reg, new_reg);
	}
	}

	k_sem_give(&data->lock);

	return ret;
	}

	static int gpio_rt1718s_port_clear_bits_raw(const struct device *dev, gpio_port_pins_t mask)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data = dev->data;
	uint8_t new_reg, reg;
	int ret = 0;

	k_sem_take(&data->lock, K_FOREVER);

	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
	if (mask & BIT(pin)) {
	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	&reg);
	if (ret < 0) {
	break;
	}
	new_reg = reg & ~RT1718S_REG_GPIO_CTRL_O;
	ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	reg, new_reg);
	}
	}

	k_sem_give(&data->lock);

	return ret;
	}

	static int gpio_rt1718s_port_toggle_bits(const struct device *dev, gpio_port_pins_t mask)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data = dev->data;
	uint8_t new_reg, reg;
	int ret = 0;

	k_sem_take(&data->lock, K_FOREVER);

	for (int pin = 0; pin < RT1718S_GPIO_NUM; pin++) {
	if (mask & BIT(pin)) {
	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	&reg);
	if (ret < 0) {
	break;
	}
	new_reg = reg ^ RT1718S_REG_GPIO_CTRL_O;
	ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_GPIO_CTRL(pin),
	reg, new_reg);
	}
	}

	k_sem_give(&data->lock);

	return ret;
	}

	static int gpio_rt1718s_pin_interrupt_configure(const struct device *dev, gpio_pin_t pin,
	enum gpio_int_mode mode, enum gpio_int_trig trig)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data = dev->data;
	struct rt1718s_data *const data_rt1718s = config->rt1718s_dev->data;
	uint8_t reg_int8, reg_mask8, new_reg_mask8 = 0;
	uint8_t mask_rise = BIT(pin), mask_fall = BIT(4 + pin);
	uint16_t alert_mask;
	int ret;

	/* Check passed arguments */
	if (mode == GPIO_INT_MODE_LEVEL \|\| pin >= RT1718S_GPIO_NUM) {
	return -ENOTSUP;
	}

	k_sem_take(&data->lock, K_FOREVER);
	k_sem_take(&data_rt1718s->lock_tcpci, K_FOREVER);

	ret = rt1718s_reg_read_byte(config->rt1718s_dev, RT1718S_REG_RT_MASK8, &reg_mask8);
	if (ret < 0) {
	goto done;
	}

	/* Disable GPIO interrupt */
	if (mode == GPIO_INT_MODE_DISABLED) {
	new_reg_mask8 = reg_mask8 & ~(mask_rise \| mask_fall);
	} else if (mode == GPIO_INT_MODE_EDGE) {
	switch (trig) {
	case GPIO_INT_TRIG_BOTH:
	new_reg_mask8 = reg_mask8 \| mask_rise \| mask_fall;
	break;
	case GPIO_INT_TRIG_HIGH:
	new_reg_mask8 = (reg_mask8 \| mask_rise) & ~mask_fall;
	break;
	case GPIO_INT_TRIG_LOW:
	new_reg_mask8 = (reg_mask8 \| mask_fall) & ~mask_rise;
	break;
	}

	ret = rt1718s_reg_burst_read(config->rt1718s_dev, RT1718S_REG_ALERT_MASK,
	(uint8_t *)&alert_mask, sizeof(alert_mask));
	if (ret) {
	goto done;
	}

	/* Enable Vendor Defined Alert for GPIO interrupts */
	if (!(alert_mask & RT1718S_REG_ALERT_MASK_VENDOR_DEFINED_ALERT)) {
	alert_mask \|= RT1718S_REG_ALERT_MASK_VENDOR_DEFINED_ALERT;
	ret = rt1718s_reg_burst_write(config->rt1718s_dev, RT1718S_REG_ALERT_MASK,
	(uint8_t *)&alert_mask, sizeof(alert_mask));

	if (ret) {
	goto done;
	}
	}

	/* Clear pending interrupts, which were trigger before enabling the pin
	* interrupt by user.
	*/
	reg_int8 = mask_rise \| mask_fall;
	rt1718s_reg_write_byte(config->rt1718s_dev, RT1718S_REG_RT_INT8, reg_int8);
	}

	/* MASK8 handles 3 GPIOs interrupts, both edges */
	ret = rt1718s_reg_update(config->rt1718s_dev, RT1718S_REG_RT_MASK8, reg_mask8,
	new_reg_mask8);

	done:
	k_sem_give(&data_rt1718s->lock_tcpci);
	k_sem_give(&data->lock);

	return ret;
	}

	static int gpio_rt1718s_manage_callback(const struct device dev, struct gpio_callback callback,
	bool set)
	{
	struct gpio_rt1718s_port_data *const data = dev->data;

	return gpio_manage_callback(&data->cb_list_gpio, callback, set);
	}

	void rt1718s_gpio_alert_handler(const struct device *dev)
	{
	const struct rt1718s_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data_port = config->gpio_port_dev->data;
	uint8_t reg_int8, reg_mask8;

	k_sem_take(&data_port->lock, K_FOREVER);

	/* Get mask and state of GPIO interrupts */
	if (rt1718s_reg_read_byte(dev, RT1718S_REG_RT_INT8, &reg_int8) \|\|
	rt1718s_reg_read_byte(dev, RT1718S_REG_RT_MASK8, &reg_mask8)) {
	k_sem_give(&data_port->lock);
	LOG_ERR("i2c access failed");
	return;
	}

	reg_int8 &= reg_mask8;
	/* Clear the interrupts */
	if (reg_int8) {
	if (rt1718s_reg_write_byte(dev, RT1718S_REG_RT_INT8, reg_int8)) {
	k_sem_give(&data_port->lock);
	LOG_ERR("i2c access failed");
	return;
	}
	}

	k_sem_give(&data_port->lock);

	if (reg_int8 & RT1718S_GPIO_INT_MASK)
	/* Call the GPIO callbacks for rising or falling edge */
	gpio_fire_callbacks(&data_port->cb_list_gpio, config->gpio_port_dev,
	(reg_int8 & 0x7) \| ((reg_int8 >> 4) & 0x7));
	}

	static const struct gpio_driver_api gpio_rt1718s_driver = {
	.pin_configure = gpio_rt1718s_pin_config,
	.port_get_raw = gpio_rt1718s_port_get_raw,
	.port_set_masked_raw = gpio_rt1718s_port_set_masked_raw,
	.port_set_bits_raw = gpio_rt1718s_port_set_bits_raw,
	.port_clear_bits_raw = gpio_rt1718s_port_clear_bits_raw,
	.port_toggle_bits = gpio_rt1718s_port_toggle_bits,
	.pin_interrupt_configure = gpio_rt1718s_pin_interrupt_configure,
	.manage_callback = gpio_rt1718s_manage_callback,
	};

	static int gpio_rt1718s_port_init(const struct device *dev)
	{
	const struct gpio_rt1718s_port_config *const config = dev->config;
	struct gpio_rt1718s_port_data *const data = dev->data;

	if (!device_is_ready(config->rt1718s_dev)) {
	LOG_ERR("%s is not ready", config->rt1718s_dev->name);
	return -ENODEV;
	}

	k_sem_init(&data->lock, 1, 1);

	return 0;
	}

	/* RT1718S GPIO port driver must be initialized after RT1718S chip driver */
	BUILD_ASSERT(CONFIG_GPIO_RT1718S_PORT_INIT_PRIORITY > CONFIG_RT1718S_INIT_PRIORITY);

	#define GPIO_RT1718S_PORT_DEVICE_INSTANCE(inst) \
	static const struct gpio_rt1718s_port_config gpio_rt1718s_port_cfg_##inst = { \
	.common = {.port_pin_mask = 0x7}, \
	.rt1718s_dev = DEVICE_DT_GET(DT_INST_PARENT(inst)), \
	}; \
	static struct gpio_rt1718s_port_data gpio_rt1718s_port_data_##inst; \
	DEVICE_DT_INST_DEFINE(inst, gpio_rt1718s_port_init, NULL, &gpio_rt1718s_port_data_##inst, \
	&gpio_rt1718s_port_cfg_##inst, POST_KERNEL, \
	CONFIG_GPIO_RT1718S_PORT_INIT_PRIORITY, &gpio_rt1718s_driver);

	DT_INST_FOREACH_STATUS_OKAY(GPIO_RT1718S_PORT_DEVICE_INSTANCE)