4  * SPDX-License-Identifier: Apache-2.0
21 /* Driver config */
23 	/* Multi-function device, parent to the NCT38xx GPIO controller */
28 	/* Alert handler */
44 	const struct gpio_nct38xx_config *const config = dev->config;  in nct38xx_gpio_alert_handler()  local
46 	for (int i = 0; i < config->sub_gpio_port_num; i++) {  in nct38xx_gpio_alert_handler()
47 		gpio_nct38xx_dispatch_port_isr(config->sub_gpio_dev[i]);  in nct38xx_gpio_alert_handler()
53 	uint16_t alert, alert_mask = 0;  in nct38xx_init_interrupt()  local
55 	struct gpio_nct38xx_data *data = dev->data;  in nct38xx_init_interrupt()
57 	k_sem_take(data->lock, K_FOREVER);  in nct38xx_init_interrupt()
60 	if (i2c_burst_write_dt(data->i2c_dev, NCT38XX_REG_ALERT_MASK, (uint8_t *)&alert_mask,  in nct38xx_init_interrupt()
62 		ret = -EIO;  in nct38xx_init_interrupt()
66 	/* Enable vendor-defined alert for GPIO. */  in nct38xx_init_interrupt()
69 	/* Clear alert */  in nct38xx_init_interrupt()
70 	if (i2c_burst_read_dt(data->i2c_dev, NCT38XX_REG_ALERT, (uint8_t *)&alert, sizeof(alert))) {  in nct38xx_init_interrupt()
71 		ret = -EIO;  in nct38xx_init_interrupt()
74 	alert &= alert_mask;  in nct38xx_init_interrupt()
75 	if (alert) {  in nct38xx_init_interrupt()
76 		if (i2c_burst_write_dt(data->i2c_dev, NCT38XX_REG_ALERT, (uint8_t *)&alert,  in nct38xx_init_interrupt()
77 				       sizeof(alert))) {  in nct38xx_init_interrupt()
78 			ret = -EIO;  in nct38xx_init_interrupt()
83 	if (i2c_burst_write_dt(data->i2c_dev, NCT38XX_REG_ALERT_MASK, (uint8_t *)&alert_mask,  in nct38xx_init_interrupt()
85 		ret = -EIO;  in nct38xx_init_interrupt()
90 	k_sem_give(data->lock);  in nct38xx_init_interrupt()
96 	const struct gpio_nct38xx_config *const config = dev->config;  in nct38xx_gpio_init()  local
97 	struct gpio_nct38xx_data *data = dev->data;  in nct38xx_gpio_init()
99 	/* Verify multi-function parent is ready */  in nct38xx_gpio_init()
100 	if (!device_is_ready(config->mfd)) {  in nct38xx_gpio_init()
101 		LOG_ERR("%s device not ready", config->mfd->name);  in nct38xx_gpio_init()
102 		return -ENODEV;  in nct38xx_gpio_init()
105 	data->lock = mfd_nct38xx_get_lock_reference(config->mfd);  in nct38xx_gpio_init()
106 	data->i2c_dev = mfd_nct38xx_get_i2c_dt_spec(config->mfd);  in nct38xx_gpio_init()