drivers/gpio/gpio_sam0.c - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /*
  * Copyright (c) 2017 Google LLC.
  * Copyright (c) 2019 Nordic Semiconductor ASA
  *
  * SPDX-License-Identifier: Apache-2.0
  */

 #include <errno.h>
 #include <device.h>
 #include <drivers/gpio.h>
 #include <soc.h>
 #include <drivers/interrupt_controller/sam0_eic.h>

 #include "gpio_utils.h"

 #ifndef PORT_PMUX_PMUXE_A_Val
 #define PORT_PMUX_PMUXE_A_Val (0)
 #endif

 struct gpio_sam0_config {
 	/* gpio_driver_config needs to be first */
 	struct gpio_driver_config common;
 	PortGroup *regs;
 #ifdef CONFIG_SAM0_EIC
 	u8_t id;
 #endif
 };

 struct gpio_sam0_data {
 	/* gpio_driver_data needs to be first */
 	struct gpio_driver_data common;
 	gpio_port_pins_t debounce;
 #ifdef CONFIG_SAM0_EIC
 	sys_slist_t callbacks;
 #endif
 };

 #define DEV_CFG(dev) \
 	((const struct gpio_sam0_config *const)(dev)->config->config_info)
 #define DEV_DATA(dev) \
 	((struct gpio_sam0_data *const)(dev)->driver_data)

 #ifdef CONFIG_SAM0_EIC
 static void gpio_sam0_isr(u32_t pins, void *arg)
 {
 	struct device *const dev = (struct device *) arg;
 	struct gpio_sam0_data *const data = DEV_DATA(dev);

 	gpio_fire_callbacks(&data->callbacks, dev, pins);
 }
 #endif

 static int gpio_sam0_config(struct device *dev, gpio_pin_t pin,
 			    gpio_flags_t flags)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);
 	PortGroup *regs = config->regs;
 	PORT_PINCFG_Type pincfg = {
 		.reg = 0,
 	};

 	if ((flags & GPIO_SINGLE_ENDED) != 0) {
 		return -ENOTSUP;
 	}

 	/* Supports disconnected, input, output, or bidirectional */
 	if ((flags & GPIO_INPUT) != 0) {
 		pincfg.bit.INEN = 1;
 	}
 	if ((flags & GPIO_OUTPUT) != 0) {
 		/* Output is incompatible with pull */
 		if ((flags & (GPIO_PULL_UP | GPIO_PULL_DOWN)) != 0) {
 			return -ENOTSUP;
 		}
 		/* Bidirectional is supported */
 		if ((flags & GPIO_OUTPUT_INIT_LOW) != 0) {
 			regs->OUTCLR.reg = BIT(pin);
 		} else if ((flags & GPIO_OUTPUT_INIT_HIGH) != 0) {
 			regs->OUTSET.reg = BIT(pin);
 		}
 		regs->DIRSET.reg = BIT(pin);
 	} else {
 		/* Not output, may be input */
 		regs->DIRCLR.reg = BIT(pin);

 		/* Pull configuration is supported if not output */
 		if ((flags & (GPIO_PULL_UP | GPIO_PULL_DOWN)) != 0) {
 			pincfg.bit.PULLEN = 1;
 			if ((flags & GPIO_PULL_UP) != 0) {
 				regs->OUTSET.reg = BIT(pin);
 			} else {
 				regs->OUTCLR.reg = BIT(pin);
 			}
 		}
 	}

 	/* Preserve debounce flag for interrupt configuration. */
 	WRITE_BIT(DEV_DATA(dev)->debounce, pin,
 		  ((flags & GPIO_INT_DEBOUNCE) != 0)
 		  && (pincfg.bit.INEN != 0));

 	/* Write the now-built pin configuration */
 	regs->PINCFG[pin] = pincfg;

 	return 0;
 }

 static int gpio_sam0_port_get_raw(struct device *dev,
 				  gpio_port_value_t *value)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);

 	*value = config->regs->IN.reg;

 	return 0;
 }

 static int gpio_sam0_port_set_masked_raw(struct device *dev,
 					 gpio_port_pins_t mask,
 					 gpio_port_value_t value)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);
 	u32_t out = config->regs->OUT.reg;

 	config->regs->OUT.reg = (out & ~mask) | (value & mask);

 	return 0;
 }

 static int gpio_sam0_port_set_bits_raw(struct device *dev,
 				       gpio_port_pins_t pins)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);

 	config->regs->OUTSET.reg = pins;

 	return 0;
 }

 static int gpio_sam0_port_clear_bits_raw(struct device *dev,
 					 gpio_port_pins_t pins)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);

 	config->regs->OUTCLR.reg = pins;

 	return 0;
 }

 static int gpio_sam0_port_toggle_bits(struct device *dev,
 				      gpio_port_pins_t pins)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);

 	config->regs->OUTTGL.reg = pins;

 	return 0;
 }

 #ifdef CONFIG_SAM0_EIC

 static int gpio_sam0_pin_interrupt_configure(struct device *dev,
 					     gpio_pin_t pin,
 					     enum gpio_int_mode mode,
 					     enum gpio_int_trig trig)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);
 	PortGroup *regs = config->regs;
 	PORT_PINCFG_Type pincfg = {
 		.reg = regs->PINCFG[pin].reg,
 	};
 	enum sam0_eic_trigger trigger;
 	int rc = 0;

 	switch (mode) {
 	case GPIO_INT_MODE_DISABLED:
 		pincfg.bit.PMUXEN = 0;
 		rc = sam0_eic_disable_interrupt(config->id, pin);
 		if (rc == -EBUSY) {
 			/* Ignore diagnostic disabling disabled */
 			rc = 0;
 		}
 		if (rc == 0) {
 			rc = sam0_eic_release(config->id, pin);
 		}
 		break;
 	case GPIO_INT_MODE_LEVEL:
 	case GPIO_INT_MODE_EDGE:
 		/* Enabling interrupts on a pin requires disconnecting
 		 * the pin from the I/O pin controller (PORT) module
 		 * and connecting it to the External Interrupt
 		 * Controller (EIC).  This would prevent using the pin
 		 * as an output, so interrupts are only supported if
 		 * the pin is configured as input-only.
 		 */
 		if ((pincfg.bit.INEN == 0)
 		    || ((regs->DIR.reg & BIT(pin)) != 0)) {
 			rc = -ENOTSUP;
 			break;
 		}

 		/* Transfer control to EIC */
 		pincfg.bit.PMUXEN = 1;
 		if ((pin & 1U) != 0) {
 			regs->PMUX[pin / 2U].bit.PMUXO = PORT_PMUX_PMUXE_A_Val;
 		} else {
 			regs->PMUX[pin / 2U].bit.PMUXE = PORT_PMUX_PMUXE_A_Val;
 		}

 		switch (trig) {
 		case GPIO_INT_TRIG_LOW:
 			trigger = (mode == GPIO_INT_MODE_LEVEL)
 				? SAM0_EIC_LOW
 				: SAM0_EIC_FALLING;
 			break;
 		case GPIO_INT_TRIG_HIGH:
 			trigger = (mode == GPIO_INT_MODE_LEVEL)
 				? SAM0_EIC_HIGH
 				: SAM0_EIC_RISING;
 			break;
 		case GPIO_INT_TRIG_BOTH:
 			trigger = SAM0_EIC_BOTH;
 			break;
 		default:
 			rc = -EINVAL;
 			break;
 		}

 		if (rc == 0) {
 			rc = sam0_eic_acquire(config->id, pin, trigger,
 					      (DEV_DATA(dev)->debounce & BIT(pin)) != 0,
 					      gpio_sam0_isr, dev);
 		}
 		if (rc == 0) {
 			rc = sam0_eic_enable_interrupt(config->id, pin);
 		}

 		break;
 	default:
 		rc = -EINVAL;
 		break;
 	}

 	if (rc == 0) {
 		/* Update the pin configuration */
 		regs->PINCFG[pin] = pincfg;
 	}

 	return rc;
 }


 static int gpio_sam0_manage_callback(struct device *dev,
 			      struct gpio_callback *callback, bool set)
 {
 	struct gpio_sam0_data *const data = DEV_DATA(dev);

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

 int gpio_sam0_enable_callback(struct device *dev, gpio_pin_t pin)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);

 	return sam0_eic_enable_interrupt(config->id, pin);
 }

 int gpio_sam0_disable_callback(struct device *dev, gpio_pin_t pin)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);

 	return sam0_eic_disable_interrupt(config->id, pin);
 }

 static u32_t gpio_sam0_get_pending_int(struct device *dev)
 {
 	const struct gpio_sam0_config *config = DEV_CFG(dev);

 	return sam0_eic_interrupt_pending(config->id);
 }

 #endif

 static const struct gpio_driver_api gpio_sam0_api = {
 	.pin_configure = gpio_sam0_config,
 	.port_get_raw = gpio_sam0_port_get_raw,
 	.port_set_masked_raw = gpio_sam0_port_set_masked_raw,
 	.port_set_bits_raw = gpio_sam0_port_set_bits_raw,
 	.port_clear_bits_raw = gpio_sam0_port_clear_bits_raw,
 	.port_toggle_bits = gpio_sam0_port_toggle_bits,
 #ifdef CONFIG_SAM0_EIC
 	.pin_interrupt_configure = gpio_sam0_pin_interrupt_configure,
 	.manage_callback = gpio_sam0_manage_callback,
 	.enable_callback = gpio_sam0_enable_callback,
 	.disable_callback = gpio_sam0_disable_callback,
 	.get_pending_int = gpio_sam0_get_pending_int,
 #endif
 };

 static int gpio_sam0_init(struct device *dev) { return 0; }

 /* Port A */
 #if DT_ATMEL_SAM0_GPIO_PORT_A_BASE_ADDRESS

 static const struct gpio_sam0_config gpio_sam0_config_0 = {
 	.common = {
 		.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_0_ATMEL_SAM0_GPIO_NGPIOS),
 	},
 	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_A_BASE_ADDRESS,
 #ifdef CONFIG_SAM0_EIC
 	.id = 0,
 #endif
 };

 static struct gpio_sam0_data gpio_sam0_data_0;

 DEVICE_AND_API_INIT(gpio_sam0_0, DT_ATMEL_SAM0_GPIO_PORT_A_LABEL,
 		    gpio_sam0_init, &gpio_sam0_data_0, &gpio_sam0_config_0,
 		    POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
 		    &gpio_sam0_api);
 #endif

 /* Port B */
 #if DT_ATMEL_SAM0_GPIO_PORT_B_BASE_ADDRESS

 static const struct gpio_sam0_config gpio_sam0_config_1 = {
 	.common = {
 		.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_1_ATMEL_SAM0_GPIO_NGPIOS),
 	},
 	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_B_BASE_ADDRESS,
 #ifdef CONFIG_SAM0_EIC
 	.id = 1,
 #endif
 };

 static struct gpio_sam0_data gpio_sam0_data_1;

 DEVICE_AND_API_INIT(gpio_sam0_1, DT_ATMEL_SAM0_GPIO_PORT_B_LABEL,
 		    gpio_sam0_init, &gpio_sam0_data_1, &gpio_sam0_config_1,
 		    POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
 		    &gpio_sam0_api);
 #endif

 /* Port C */
 #if DT_ATMEL_SAM0_GPIO_PORT_C_BASE_ADDRESS

 static const struct gpio_sam0_config gpio_sam0_config_2 = {
 	.common = {
 		.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_2_ATMEL_SAM0_GPIO_NGPIOS),
 	},
 	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_C_BASE_ADDRESS,
 #ifdef CONFIG_SAM0_EIC
 	.id = 2,
 #endif
 };

 static struct gpio_sam0_data gpio_sam0_data_2;

 DEVICE_AND_API_INIT(gpio_sam0_2, DT_ATMEL_SAM0_GPIO_PORT_C_LABEL,
 		    gpio_sam0_init, &gpio_sam0_data_2, &gpio_sam0_config_2,
 		    POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
 		    &gpio_sam0_api);
 #endif

 /* Port D */
 #if DT_ATMEL_SAM0_GPIO_PORT_D_BASE_ADDRESS

 static const struct gpio_sam0_config gpio_sam0_config_3 = {
 	.common = {
 		.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_3_ATMEL_SAM0_GPIO_NGPIOS),
 	},
 	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_D_BASE_ADDRESS,
 #ifdef CONFIG_SAM0_EIC
 	.id = 3,
 #endif
 };

 static struct gpio_sam0_data gpio_sam0_data_3;

 DEVICE_AND_API_INIT(gpio_sam0_3, DT_ATMEL_SAM0_GPIO_PORT_D_LABEL,
 		    gpio_sam0_init, &gpio_sam0_data_3, &gpio_sam0_config_3,
 		    POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
 		    &gpio_sam0_api);
 #endif
	/*
	* Copyright (c) 2017 Google LLC.
	* Copyright (c) 2019 Nordic Semiconductor ASA
	*
	* SPDX-License-Identifier: Apache-2.0
	*/

	#include <errno.h>
	#include <device.h>
	#include <drivers/gpio.h>
	#include <soc.h>
	#include <drivers/interrupt_controller/sam0_eic.h>

	#include "gpio_utils.h"

	#ifndef PORT_PMUX_PMUXE_A_Val
	#define PORT_PMUX_PMUXE_A_Val (0)
	#endif

	struct gpio_sam0_config {
	/* gpio_driver_config needs to be first */
	struct gpio_driver_config common;
	PortGroup *regs;
	#ifdef CONFIG_SAM0_EIC
	u8_t id;
	#endif
	};

	struct gpio_sam0_data {
	/* gpio_driver_data needs to be first */
	struct gpio_driver_data common;
	gpio_port_pins_t debounce;
	#ifdef CONFIG_SAM0_EIC
	sys_slist_t callbacks;
	#endif
	};

	#define DEV_CFG(dev) \
	((const struct gpio_sam0_config *const)(dev)->config->config_info)
	#define DEV_DATA(dev) \
	((struct gpio_sam0_data *const)(dev)->driver_data)

	#ifdef CONFIG_SAM0_EIC
	static void gpio_sam0_isr(u32_t pins, void *arg)
	{
	struct device const dev = (struct device ) arg;
	struct gpio_sam0_data *const data = DEV_DATA(dev);

	gpio_fire_callbacks(&data->callbacks, dev, pins);
	}
	#endif

	static int gpio_sam0_config(struct device *dev, gpio_pin_t pin,
	gpio_flags_t flags)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);
	PortGroup *regs = config->regs;
	PORT_PINCFG_Type pincfg = {
	.reg = 0,
	};

	if ((flags & GPIO_SINGLE_ENDED) != 0) {
	return -ENOTSUP;
	}

	/* Supports disconnected, input, output, or bidirectional */
	if ((flags & GPIO_INPUT) != 0) {
	pincfg.bit.INEN = 1;
	}
	if ((flags & GPIO_OUTPUT) != 0) {
	/* Output is incompatible with pull */
	if ((flags & (GPIO_PULL_UP \| GPIO_PULL_DOWN)) != 0) {
	return -ENOTSUP;
	}
	/* Bidirectional is supported */
	if ((flags & GPIO_OUTPUT_INIT_LOW) != 0) {
	regs->OUTCLR.reg = BIT(pin);
	} else if ((flags & GPIO_OUTPUT_INIT_HIGH) != 0) {
	regs->OUTSET.reg = BIT(pin);
	}
	regs->DIRSET.reg = BIT(pin);
	} else {
	/* Not output, may be input */
	regs->DIRCLR.reg = BIT(pin);

	/* Pull configuration is supported if not output */
	if ((flags & (GPIO_PULL_UP \| GPIO_PULL_DOWN)) != 0) {
	pincfg.bit.PULLEN = 1;
	if ((flags & GPIO_PULL_UP) != 0) {
	regs->OUTSET.reg = BIT(pin);
	} else {
	regs->OUTCLR.reg = BIT(pin);
	}
	}
	}

	/* Preserve debounce flag for interrupt configuration. */
	WRITE_BIT(DEV_DATA(dev)->debounce, pin,
	((flags & GPIO_INT_DEBOUNCE) != 0)
	&& (pincfg.bit.INEN != 0));

	/* Write the now-built pin configuration */
	regs->PINCFG[pin] = pincfg;

	return 0;
	}

	static int gpio_sam0_port_get_raw(struct device *dev,
	gpio_port_value_t *value)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);

	*value = config->regs->IN.reg;

	return 0;
	}

	static int gpio_sam0_port_set_masked_raw(struct device *dev,
	gpio_port_pins_t mask,
	gpio_port_value_t value)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);
	u32_t out = config->regs->OUT.reg;

	config->regs->OUT.reg = (out & ~mask) \| (value & mask);

	return 0;
	}

	static int gpio_sam0_port_set_bits_raw(struct device *dev,
	gpio_port_pins_t pins)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);

	config->regs->OUTSET.reg = pins;

	return 0;
	}

	static int gpio_sam0_port_clear_bits_raw(struct device *dev,
	gpio_port_pins_t pins)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);

	config->regs->OUTCLR.reg = pins;

	return 0;
	}

	static int gpio_sam0_port_toggle_bits(struct device *dev,
	gpio_port_pins_t pins)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);

	config->regs->OUTTGL.reg = pins;

	return 0;
	}

	#ifdef CONFIG_SAM0_EIC

	static int gpio_sam0_pin_interrupt_configure(struct device *dev,
	gpio_pin_t pin,
	enum gpio_int_mode mode,
	enum gpio_int_trig trig)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);
	PortGroup *regs = config->regs;
	PORT_PINCFG_Type pincfg = {
	.reg = regs->PINCFG[pin].reg,
	};
	enum sam0_eic_trigger trigger;
	int rc = 0;

	switch (mode) {
	case GPIO_INT_MODE_DISABLED:
	pincfg.bit.PMUXEN = 0;
	rc = sam0_eic_disable_interrupt(config->id, pin);
	if (rc == -EBUSY) {
	/* Ignore diagnostic disabling disabled */
	rc = 0;
	}
	if (rc == 0) {
	rc = sam0_eic_release(config->id, pin);
	}
	break;
	case GPIO_INT_MODE_LEVEL:
	case GPIO_INT_MODE_EDGE:
	/* Enabling interrupts on a pin requires disconnecting
	* the pin from the I/O pin controller (PORT) module
	* and connecting it to the External Interrupt
	* Controller (EIC). This would prevent using the pin
	* as an output, so interrupts are only supported if
	* the pin is configured as input-only.
	*/
	if ((pincfg.bit.INEN == 0)
	\|\| ((regs->DIR.reg & BIT(pin)) != 0)) {
	rc = -ENOTSUP;
	break;
	}

	/* Transfer control to EIC */
	pincfg.bit.PMUXEN = 1;
	if ((pin & 1U) != 0) {
	regs->PMUX[pin / 2U].bit.PMUXO = PORT_PMUX_PMUXE_A_Val;
	} else {
	regs->PMUX[pin / 2U].bit.PMUXE = PORT_PMUX_PMUXE_A_Val;
	}

	switch (trig) {
	case GPIO_INT_TRIG_LOW:
	trigger = (mode == GPIO_INT_MODE_LEVEL)
	? SAM0_EIC_LOW
	: SAM0_EIC_FALLING;
	break;
	case GPIO_INT_TRIG_HIGH:
	trigger = (mode == GPIO_INT_MODE_LEVEL)
	? SAM0_EIC_HIGH
	: SAM0_EIC_RISING;
	break;
	case GPIO_INT_TRIG_BOTH:
	trigger = SAM0_EIC_BOTH;
	break;
	default:
	rc = -EINVAL;
	break;
	}

	if (rc == 0) {
	rc = sam0_eic_acquire(config->id, pin, trigger,
	(DEV_DATA(dev)->debounce & BIT(pin)) != 0,
	gpio_sam0_isr, dev);
	}
	if (rc == 0) {
	rc = sam0_eic_enable_interrupt(config->id, pin);
	}

	break;
	default:
	rc = -EINVAL;
	break;
	}

	if (rc == 0) {
	/* Update the pin configuration */
	regs->PINCFG[pin] = pincfg;
	}

	return rc;
	}


	static int gpio_sam0_manage_callback(struct device *dev,
	struct gpio_callback *callback, bool set)
	{
	struct gpio_sam0_data *const data = DEV_DATA(dev);

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

	int gpio_sam0_enable_callback(struct device *dev, gpio_pin_t pin)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);

	return sam0_eic_enable_interrupt(config->id, pin);
	}

	int gpio_sam0_disable_callback(struct device *dev, gpio_pin_t pin)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);

	return sam0_eic_disable_interrupt(config->id, pin);
	}

	static u32_t gpio_sam0_get_pending_int(struct device *dev)
	{
	const struct gpio_sam0_config *config = DEV_CFG(dev);

	return sam0_eic_interrupt_pending(config->id);
	}

	#endif

	static const struct gpio_driver_api gpio_sam0_api = {
	.pin_configure = gpio_sam0_config,
	.port_get_raw = gpio_sam0_port_get_raw,
	.port_set_masked_raw = gpio_sam0_port_set_masked_raw,
	.port_set_bits_raw = gpio_sam0_port_set_bits_raw,
	.port_clear_bits_raw = gpio_sam0_port_clear_bits_raw,
	.port_toggle_bits = gpio_sam0_port_toggle_bits,
	#ifdef CONFIG_SAM0_EIC
	.pin_interrupt_configure = gpio_sam0_pin_interrupt_configure,
	.manage_callback = gpio_sam0_manage_callback,
	.enable_callback = gpio_sam0_enable_callback,
	.disable_callback = gpio_sam0_disable_callback,
	.get_pending_int = gpio_sam0_get_pending_int,
	#endif
	};

	static int gpio_sam0_init(struct device *dev) { return 0; }

	/* Port A */
	#if DT_ATMEL_SAM0_GPIO_PORT_A_BASE_ADDRESS

	static const struct gpio_sam0_config gpio_sam0_config_0 = {
	.common = {
	.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_0_ATMEL_SAM0_GPIO_NGPIOS),
	},
	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_A_BASE_ADDRESS,
	#ifdef CONFIG_SAM0_EIC
	.id = 0,
	#endif
	};

	static struct gpio_sam0_data gpio_sam0_data_0;

	DEVICE_AND_API_INIT(gpio_sam0_0, DT_ATMEL_SAM0_GPIO_PORT_A_LABEL,
	gpio_sam0_init, &gpio_sam0_data_0, &gpio_sam0_config_0,
	POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
	&gpio_sam0_api);
	#endif

	/* Port B */
	#if DT_ATMEL_SAM0_GPIO_PORT_B_BASE_ADDRESS

	static const struct gpio_sam0_config gpio_sam0_config_1 = {
	.common = {
	.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_1_ATMEL_SAM0_GPIO_NGPIOS),
	},
	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_B_BASE_ADDRESS,
	#ifdef CONFIG_SAM0_EIC
	.id = 1,
	#endif
	};

	static struct gpio_sam0_data gpio_sam0_data_1;

	DEVICE_AND_API_INIT(gpio_sam0_1, DT_ATMEL_SAM0_GPIO_PORT_B_LABEL,
	gpio_sam0_init, &gpio_sam0_data_1, &gpio_sam0_config_1,
	POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
	&gpio_sam0_api);
	#endif

	/* Port C */
	#if DT_ATMEL_SAM0_GPIO_PORT_C_BASE_ADDRESS

	static const struct gpio_sam0_config gpio_sam0_config_2 = {
	.common = {
	.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_2_ATMEL_SAM0_GPIO_NGPIOS),
	},
	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_C_BASE_ADDRESS,
	#ifdef CONFIG_SAM0_EIC
	.id = 2,
	#endif
	};

	static struct gpio_sam0_data gpio_sam0_data_2;

	DEVICE_AND_API_INIT(gpio_sam0_2, DT_ATMEL_SAM0_GPIO_PORT_C_LABEL,
	gpio_sam0_init, &gpio_sam0_data_2, &gpio_sam0_config_2,
	POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
	&gpio_sam0_api);
	#endif

	/* Port D */
	#if DT_ATMEL_SAM0_GPIO_PORT_D_BASE_ADDRESS

	static const struct gpio_sam0_config gpio_sam0_config_3 = {
	.common = {
	.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_3_ATMEL_SAM0_GPIO_NGPIOS),
	},
	.regs = (PortGroup *)DT_ATMEL_SAM0_GPIO_PORT_D_BASE_ADDRESS,
	#ifdef CONFIG_SAM0_EIC
	.id = 3,
	#endif
	};

	static struct gpio_sam0_data gpio_sam0_data_3;

	DEVICE_AND_API_INIT(gpio_sam0_3, DT_ATMEL_SAM0_GPIO_PORT_D_LABEL,
	gpio_sam0_init, &gpio_sam0_data_3, &gpio_sam0_config_3,
	POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
	&gpio_sam0_api);
	#endif