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

 /*
  * Copyright (c) 2017, Christian Taedcke
  *
  * SPDX-License-Identifier: Apache-2.0
  */

 #include <errno.h>
 #include <drivers/gpio.h>
 #include <soc.h>
 #include <em_gpio.h>

 #include "gpio_utils.h"

 /*
  * Macros to set the GPIO MODE registers
  *
  * See https://www.silabs.com/documents/public/reference-manuals/EFM32WG-RM.pdf
  * pages 972 and 982.
  */
 /**
  * @brief Create the value to set the GPIO MODEL register
  * @param[in] pin The index of the pin. Valid values are 0..7.
  * @param[in] mode The mode that should be set.
  * @return The value that can be set into the GPIO MODEL register.
  */
 #define GECKO_GPIO_MODEL(pin, mode) (mode << (pin * 4))

 /**
  * @brief Create the value to set the GPIO MODEH register
  * @param[in] pin The index of the pin. Valid values are 8..15.
  * @param[in] mode The mode that should be set.
  * @return The value that can be set into the GPIO MODEH register.
  */
 #define GECKO_GPIO_MODEH(pin, mode) (mode << ((pin - 8) * 4))


 #define member_size(type, member) sizeof(((type *)0)->member)
 #define NUMBER_OF_PORTS (member_size(GPIO_TypeDef, P) / \
 			 member_size(GPIO_TypeDef, P[0]))

 struct gpio_gecko_common_config {
 };

 struct gpio_gecko_common_data {
 	/* a list of all ports */
 	struct device *ports[NUMBER_OF_PORTS];
 	size_t count;
 };

 struct gpio_gecko_config {
 	/* gpio_driver_config needs to be first */
 	struct gpio_driver_config common;
 	GPIO_P_TypeDef *gpio_base;
 	GPIO_Port_TypeDef gpio_index;
 };

 struct gpio_gecko_data {
 	/* gpio_driver_data needs to be first */
 	struct gpio_driver_data common;
 	/* port ISR callback routine address */
 	sys_slist_t callbacks;
 	/* pin callback routine enable flags, by pin number */
 	u32_t pin_callback_enables;
 };

 static inline void gpio_gecko_add_port(struct gpio_gecko_common_data *data,
 				       struct device *dev)
 {
 	__ASSERT(dev, "No port device!");
 	data->ports[data->count++] = dev;
 }

 static int gpio_gecko_configure(struct device *dev,
 				gpio_pin_t pin,
 				gpio_flags_t flags)
 {
 	const struct gpio_gecko_config *config = dev->config->config_info;
 	GPIO_Port_TypeDef gpio_index = config->gpio_index;
 	GPIO_Mode_TypeDef mode;
 	unsigned int out = 0U;

 	if (flags & GPIO_OUTPUT) {
 		/* Following modes enable both output and input */
 		if (flags & GPIO_SINGLE_ENDED) {
 			if (flags & GPIO_LINE_OPEN_DRAIN) {
 				mode = gpioModeWiredAnd;
 			} else {
 				mode = gpioModeWiredOr;
 			}
 		} else {
 			mode = gpioModePushPull;
 		}
 		if (flags & GPIO_OUTPUT_INIT_HIGH) {
 			out = 1U;
 		} else if (flags & GPIO_OUTPUT_INIT_LOW) {
 			out = 0U;
 		} else {
 			out = GPIO_PinOutGet(gpio_index, pin);
 		}
 	} else if (flags & GPIO_INPUT) {
 		if (flags & GPIO_PULL_UP) {
 			mode = gpioModeInputPull;
 			out = 1U; /* pull-up*/
 		} else if (flags & GPIO_PULL_DOWN) {
 			mode = gpioModeInputPull;
 			/* out = 0 means pull-down*/
 		} else {
 			mode = gpioModeInput;
 		}
 	} else {
 		/* Neither input nor output mode is selected */
 		mode = gpioModeDisabled;
 	}
 	/* The flags contain options that require touching registers in the
 	 * GPIO module and the corresponding PORT module.
 	 *
 	 * Start with the GPIO module and set up the pin direction register.
 	 * 0 - pin is input, 1 - pin is output
 	 */

 	GPIO_PinModeSet(gpio_index, pin, mode, out);

 	return 0;
 }

 static int gpio_gecko_port_get_raw(struct device *dev, u32_t *value)
 {
 	const struct gpio_gecko_config *config = dev->config->config_info;
 	GPIO_P_TypeDef *gpio_base = config->gpio_base;

 	*value = gpio_base->DIN;

 	return 0;
 }

 static int gpio_gecko_port_set_masked_raw(struct device *dev, u32_t mask,
 					  u32_t value)
 {
 	const struct gpio_gecko_config *config = dev->config->config_info;
 	GPIO_P_TypeDef *gpio_base = config->gpio_base;

 	gpio_base->DOUT = (gpio_base->DOUT & ~mask) | (mask & value);

 	return 0;
 }

 static int gpio_gecko_port_set_bits_raw(struct device *dev, u32_t mask)
 {
 	const struct gpio_gecko_config *config = dev->config->config_info;
 	GPIO_P_TypeDef *gpio_base = config->gpio_base;

 #if defined(_GPIO_P_DOUTSET_MASK)
 	gpio_base->DOUTSET = mask;
 #else
 	BUS_RegMaskedSet(&gpio_base->DOUT, mask);
 #endif

 	return 0;
 }

 static int gpio_gecko_port_clear_bits_raw(struct device *dev, u32_t mask)
 {
 	const struct gpio_gecko_config *config = dev->config->config_info;
 	GPIO_P_TypeDef *gpio_base = config->gpio_base;

 #if defined(_GPIO_P_DOUTCLR_MASK)
 	gpio_base->DOUTCLR = mask;
 #else
 	BUS_RegMaskedClear(&gpio_base->DOUT, mask);
 #endif

 	return 0;
 }

 static int gpio_gecko_port_toggle_bits(struct device *dev, u32_t mask)
 {
 	const struct gpio_gecko_config *config = dev->config->config_info;
 	GPIO_P_TypeDef *gpio_base = config->gpio_base;

 	gpio_base->DOUTTGL = mask;

 	return 0;
 }

 static int gpio_gecko_pin_interrupt_configure(struct device *dev,
 		gpio_pin_t pin, enum gpio_int_mode mode,
 		enum gpio_int_trig trig)
 {
 	const struct gpio_gecko_config *config = dev->config->config_info;
 	struct gpio_gecko_data *data = dev->driver_data;

 	/* Interrupt on static level is not supported by the hardware */
 	if (mode == GPIO_INT_MODE_LEVEL) {
 		return -ENOTSUP;
 	}

 	if (mode == GPIO_INT_MODE_DISABLED) {
 		GPIO_IntDisable(BIT(pin));
 	} else {
 		/* Interrupt line is already in use */
 		if ((GPIO->IEN & BIT(pin)) != 0) {
 			/* TODO: Return an error only if request is done for
 			 * a pin from a different port.
 			 */
 			return -EBUSY;
 		}

 		bool rising_edge = true;
 		bool falling_edge = true;

 		if (trig == GPIO_INT_TRIG_LOW) {
 			rising_edge = false;
 			falling_edge = true;
 		} else if (trig == GPIO_INT_TRIG_HIGH) {
 			rising_edge = true;
 			falling_edge = false;
 		} /* default is GPIO_INT_TRIG_BOTH */

 		GPIO_IntConfig(config->gpio_index, pin,
 			       rising_edge, falling_edge, true);
 	}

 	WRITE_BIT(data->pin_callback_enables, pin, mode != GPIO_INT_DISABLE);

 	return 0;
 }

 static int gpio_gecko_manage_callback(struct device *dev,
 				      struct gpio_callback *callback, bool set)
 {
 	struct gpio_gecko_data *data = dev->driver_data;

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

 static int gpio_gecko_enable_callback(struct device *dev,
 				      gpio_pin_t pin)
 {
 	struct gpio_gecko_data *data = dev->driver_data;

 	data->pin_callback_enables |= BIT(pin);
 	GPIO->IEN |= BIT(pin);

 	return 0;
 }

 static int gpio_gecko_disable_callback(struct device *dev,
 				       gpio_pin_t pin)
 {
 	struct gpio_gecko_data *data = dev->driver_data;

 	data->pin_callback_enables &= ~BIT(pin);
 	GPIO->IEN &= ~BIT(pin);

 	return 0;
 }

 /**
  * Handler for both odd and even pin interrupts
  */
 static void gpio_gecko_common_isr(void *arg)
 {
 	struct device *dev = (struct device *)arg;
 	struct gpio_gecko_common_data *data = dev->driver_data;
 	u32_t enabled_int, int_status;
 	struct device *port_dev;
 	struct gpio_gecko_data *port_data;

 	int_status = GPIO->IF;

 	for (unsigned int i = 0; int_status && (i < data->count); i++) {
 		port_dev = data->ports[i];
 		port_data = port_dev->driver_data;
 		enabled_int = int_status & port_data->pin_callback_enables;
 		if (enabled_int != 0) {
 			int_status &= ~enabled_int;
 			GPIO->IFC = enabled_int;
 			gpio_fire_callbacks(&port_data->callbacks, port_dev,
 					    enabled_int);
 		}
 	}
 }


 static const struct gpio_driver_api gpio_gecko_driver_api = {
 	.pin_configure = gpio_gecko_configure,
 	.port_get_raw = gpio_gecko_port_get_raw,
 	.port_set_masked_raw = gpio_gecko_port_set_masked_raw,
 	.port_set_bits_raw = gpio_gecko_port_set_bits_raw,
 	.port_clear_bits_raw = gpio_gecko_port_clear_bits_raw,
 	.port_toggle_bits = gpio_gecko_port_toggle_bits,
 	.pin_interrupt_configure = gpio_gecko_pin_interrupt_configure,
 	.manage_callback = gpio_gecko_manage_callback,
 	.enable_callback = gpio_gecko_enable_callback,
 	.disable_callback = gpio_gecko_disable_callback,
 };

 static const struct gpio_driver_api gpio_gecko_common_driver_api = {
 	.manage_callback = gpio_gecko_manage_callback,
 	.enable_callback = gpio_gecko_enable_callback,
 	.disable_callback = gpio_gecko_disable_callback,
 };

 #ifdef CONFIG_GPIO_GECKO
 static int gpio_gecko_common_init(struct device *dev);

 static const struct gpio_gecko_common_config gpio_gecko_common_config = {
 };

 static struct gpio_gecko_common_data gpio_gecko_common_data;

 DEVICE_AND_API_INIT(gpio_gecko_common, DT_GPIO_GECKO_COMMON_NAME,
 		    gpio_gecko_common_init,
 		    &gpio_gecko_common_data, &gpio_gecko_common_config,
 		    POST_KERNEL, CONFIG_GPIO_GECKO_COMMON_INIT_PRIORITY,
 		    &gpio_gecko_common_driver_api);

 static int gpio_gecko_common_init(struct device *dev)
 {
 	gpio_gecko_common_data.count = 0;
 	IRQ_CONNECT(GPIO_EVEN_IRQn, DT_GPIO_GECKO_COMMON_EVEN_PRI,
 		    gpio_gecko_common_isr, DEVICE_GET(gpio_gecko_common), 0);

 	IRQ_CONNECT(GPIO_ODD_IRQn, DT_GPIO_GECKO_COMMON_ODD_PRI,
 		    gpio_gecko_common_isr, DEVICE_GET(gpio_gecko_common), 0);

 	irq_enable(GPIO_EVEN_IRQn);
 	irq_enable(GPIO_ODD_IRQn);

 	return 0;
 }
 #endif /* CONFIG_GPIO_GECKO */

 #define GPIO_PORT_INIT(pl, pu) \
 static int gpio_gecko_port##pl##_init(struct device *dev); \
 \
 static const struct gpio_gecko_config gpio_gecko_port##pl##_config = { \
 	.common = { \
 		.port_pin_mask = (gpio_port_pins_t)(-1), \
 	}, \
 	.gpio_base = &GPIO->P[gpioPort##pu], \
 	.gpio_index = gpioPort##pu, \
 }; \
 \
 static struct gpio_gecko_data gpio_gecko_port##pl##_data; \
 \
 DEVICE_AND_API_INIT(gpio_gecko_port##pl, DT_GPIO_GECKO_PORT##pu##_NAME, \
 		    gpio_gecko_port##pl##_init, \
 		    &gpio_gecko_port##pl##_data, \
 		    &gpio_gecko_port##pl##_config, \
 		    POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, \
 		    &gpio_gecko_driver_api); \
 \
 static int gpio_gecko_port##pl##_init(struct device *dev) \
 { \
 	gpio_gecko_add_port(&gpio_gecko_common_data, dev); \
 	return 0; \
 }

 #ifdef CONFIG_GPIO_GECKO_PORTA
 GPIO_PORT_INIT(a, A)
 #endif /* CONFIG_GPIO_GECKO_PORTA */

 #ifdef CONFIG_GPIO_GECKO_PORTB
 GPIO_PORT_INIT(b, B)
 #endif /* CONFIG_GPIO_GECKO_PORTB */

 #ifdef CONFIG_GPIO_GECKO_PORTC
 GPIO_PORT_INIT(c, C)
 #endif /* CONFIG_GPIO_GECKO_PORTC */

 #ifdef CONFIG_GPIO_GECKO_PORTD
 GPIO_PORT_INIT(d, D)
 #endif /* CONFIG_GPIO_GECKO_PORTD */

 #ifdef CONFIG_GPIO_GECKO_PORTE
 GPIO_PORT_INIT(e, E)
 #endif /* CONFIG_GPIO_GECKO_PORTE */

 #ifdef CONFIG_GPIO_GECKO_PORTF
 GPIO_PORT_INIT(f, F)
 #endif /* CONFIG_GPIO_GECKO_PORTF */

 #ifdef CONFIG_GPIO_GECKO_PORTG
 GPIO_PORT_INIT(g, G)
 #endif /* CONFIG_GPIO_GECKO_PORTG */

 #ifdef CONFIG_GPIO_GECKO_PORTH
 GPIO_PORT_INIT(h, H)
 #endif /* CONFIG_GPIO_GECKO_PORTH */

 #ifdef CONFIG_GPIO_GECKO_PORTI
 GPIO_PORT_INIT(i, I)
 #endif /* CONFIG_GPIO_GECKO_PORTI */

 #ifdef CONFIG_GPIO_GECKO_PORTJ
 GPIO_PORT_INIT(j, J)
 #endif /* CONFIG_GPIO_GECKO_PORTJ */

 #ifdef CONFIG_GPIO_GECKO_PORTK
 GPIO_PORT_INIT(k, K)
 #endif /* CONFIG_GPIO_GECKO_PORTK */
	/*
	* Copyright (c) 2017, Christian Taedcke
	*
	* SPDX-License-Identifier: Apache-2.0
	*/

	#include <errno.h>
	#include <drivers/gpio.h>
	#include <soc.h>
	#include <em_gpio.h>

	#include "gpio_utils.h"

	/*
	* Macros to set the GPIO MODE registers
	*
	* See https://www.silabs.com/documents/public/reference-manuals/EFM32WG-RM.pdf
	* pages 972 and 982.
	*/
	/**
	* @brief Create the value to set the GPIO MODEL register
	* @param[in] pin The index of the pin. Valid values are 0..7.
	* @param[in] mode The mode that should be set.
	* @return The value that can be set into the GPIO MODEL register.
	*/
	#define GECKO_GPIO_MODEL(pin, mode) (mode << (pin * 4))

	/**
	* @brief Create the value to set the GPIO MODEH register
	* @param[in] pin The index of the pin. Valid values are 8..15.
	* @param[in] mode The mode that should be set.
	* @return The value that can be set into the GPIO MODEH register.
	*/
	#define GECKO_GPIO_MODEH(pin, mode) (mode << ((pin - 8) * 4))


	#define member_size(type, member) sizeof(((type *)0)->member)
	#define NUMBER_OF_PORTS (member_size(GPIO_TypeDef, P) / \
	member_size(GPIO_TypeDef, P[0]))

	struct gpio_gecko_common_config {
	};

	struct gpio_gecko_common_data {
	/* a list of all ports */
	struct device *ports[NUMBER_OF_PORTS];
	size_t count;
	};

	struct gpio_gecko_config {
	/* gpio_driver_config needs to be first */
	struct gpio_driver_config common;
	GPIO_P_TypeDef *gpio_base;
	GPIO_Port_TypeDef gpio_index;
	};

	struct gpio_gecko_data {
	/* gpio_driver_data needs to be first */
	struct gpio_driver_data common;
	/* port ISR callback routine address */
	sys_slist_t callbacks;
	/* pin callback routine enable flags, by pin number */
	u32_t pin_callback_enables;
	};

	static inline void gpio_gecko_add_port(struct gpio_gecko_common_data *data,
	struct device *dev)
	{
	__ASSERT(dev, "No port device!");
	data->ports[data->count++] = dev;
	}

	static int gpio_gecko_configure(struct device *dev,
	gpio_pin_t pin,
	gpio_flags_t flags)
	{
	const struct gpio_gecko_config *config = dev->config->config_info;
	GPIO_Port_TypeDef gpio_index = config->gpio_index;
	GPIO_Mode_TypeDef mode;
	unsigned int out = 0U;

	if (flags & GPIO_OUTPUT) {
	/* Following modes enable both output and input */
	if (flags & GPIO_SINGLE_ENDED) {
	if (flags & GPIO_LINE_OPEN_DRAIN) {
	mode = gpioModeWiredAnd;
	} else {
	mode = gpioModeWiredOr;
	}
	} else {
	mode = gpioModePushPull;
	}
	if (flags & GPIO_OUTPUT_INIT_HIGH) {
	out = 1U;
	} else if (flags & GPIO_OUTPUT_INIT_LOW) {
	out = 0U;
	} else {
	out = GPIO_PinOutGet(gpio_index, pin);
	}
	} else if (flags & GPIO_INPUT) {
	if (flags & GPIO_PULL_UP) {
	mode = gpioModeInputPull;
	out = 1U; /* pull-up*/
	} else if (flags & GPIO_PULL_DOWN) {
	mode = gpioModeInputPull;
	/* out = 0 means pull-down*/
	} else {
	mode = gpioModeInput;
	}
	} else {
	/* Neither input nor output mode is selected */
	mode = gpioModeDisabled;
	}
	/* The flags contain options that require touching registers in the
	* GPIO module and the corresponding PORT module.
	*
	* Start with the GPIO module and set up the pin direction register.
	* 0 - pin is input, 1 - pin is output
	*/

	GPIO_PinModeSet(gpio_index, pin, mode, out);

	return 0;
	}

	static int gpio_gecko_port_get_raw(struct device dev, u32_t value)
	{
	const struct gpio_gecko_config *config = dev->config->config_info;
	GPIO_P_TypeDef *gpio_base = config->gpio_base;

	*value = gpio_base->DIN;

	return 0;
	}

	static int gpio_gecko_port_set_masked_raw(struct device *dev, u32_t mask,
	u32_t value)
	{
	const struct gpio_gecko_config *config = dev->config->config_info;
	GPIO_P_TypeDef *gpio_base = config->gpio_base;

	gpio_base->DOUT = (gpio_base->DOUT & ~mask) \| (mask & value);

	return 0;
	}

	static int gpio_gecko_port_set_bits_raw(struct device *dev, u32_t mask)
	{
	const struct gpio_gecko_config *config = dev->config->config_info;
	GPIO_P_TypeDef *gpio_base = config->gpio_base;

	#if defined(_GPIO_P_DOUTSET_MASK)
	gpio_base->DOUTSET = mask;
	#else
	BUS_RegMaskedSet(&gpio_base->DOUT, mask);
	#endif

	return 0;
	}

	static int gpio_gecko_port_clear_bits_raw(struct device *dev, u32_t mask)
	{
	const struct gpio_gecko_config *config = dev->config->config_info;
	GPIO_P_TypeDef *gpio_base = config->gpio_base;

	#if defined(_GPIO_P_DOUTCLR_MASK)
	gpio_base->DOUTCLR = mask;
	#else
	BUS_RegMaskedClear(&gpio_base->DOUT, mask);
	#endif

	return 0;
	}

	static int gpio_gecko_port_toggle_bits(struct device *dev, u32_t mask)
	{
	const struct gpio_gecko_config *config = dev->config->config_info;
	GPIO_P_TypeDef *gpio_base = config->gpio_base;

	gpio_base->DOUTTGL = mask;

	return 0;
	}

	static int gpio_gecko_pin_interrupt_configure(struct device *dev,
	gpio_pin_t pin, enum gpio_int_mode mode,
	enum gpio_int_trig trig)
	{
	const struct gpio_gecko_config *config = dev->config->config_info;
	struct gpio_gecko_data *data = dev->driver_data;

	/* Interrupt on static level is not supported by the hardware */
	if (mode == GPIO_INT_MODE_LEVEL) {
	return -ENOTSUP;
	}

	if (mode == GPIO_INT_MODE_DISABLED) {
	GPIO_IntDisable(BIT(pin));
	} else {
	/* Interrupt line is already in use */
	if ((GPIO->IEN & BIT(pin)) != 0) {
	/* TODO: Return an error only if request is done for
	* a pin from a different port.
	*/
	return -EBUSY;
	}

	bool rising_edge = true;
	bool falling_edge = true;

	if (trig == GPIO_INT_TRIG_LOW) {
	rising_edge = false;
	falling_edge = true;
	} else if (trig == GPIO_INT_TRIG_HIGH) {
	rising_edge = true;
	falling_edge = false;
	} /* default is GPIO_INT_TRIG_BOTH */

	GPIO_IntConfig(config->gpio_index, pin,
	rising_edge, falling_edge, true);
	}

	WRITE_BIT(data->pin_callback_enables, pin, mode != GPIO_INT_DISABLE);

	return 0;
	}

	static int gpio_gecko_manage_callback(struct device *dev,
	struct gpio_callback *callback, bool set)
	{
	struct gpio_gecko_data *data = dev->driver_data;

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

	static int gpio_gecko_enable_callback(struct device *dev,
	gpio_pin_t pin)
	{
	struct gpio_gecko_data *data = dev->driver_data;

	data->pin_callback_enables \|= BIT(pin);
	GPIO->IEN \|= BIT(pin);

	return 0;
	}

	static int gpio_gecko_disable_callback(struct device *dev,
	gpio_pin_t pin)
	{
	struct gpio_gecko_data *data = dev->driver_data;

	data->pin_callback_enables &= ~BIT(pin);
	GPIO->IEN &= ~BIT(pin);

	return 0;
	}

	/**
	* Handler for both odd and even pin interrupts
	*/
	static void gpio_gecko_common_isr(void *arg)
	{
	struct device dev = (struct device )arg;
	struct gpio_gecko_common_data *data = dev->driver_data;
	u32_t enabled_int, int_status;
	struct device *port_dev;
	struct gpio_gecko_data *port_data;

	int_status = GPIO->IF;

	for (unsigned int i = 0; int_status && (i < data->count); i++) {
	port_dev = data->ports[i];
	port_data = port_dev->driver_data;
	enabled_int = int_status & port_data->pin_callback_enables;
	if (enabled_int != 0) {
	int_status &= ~enabled_int;
	GPIO->IFC = enabled_int;
	gpio_fire_callbacks(&port_data->callbacks, port_dev,
	enabled_int);
	}
	}
	}


	static const struct gpio_driver_api gpio_gecko_driver_api = {
	.pin_configure = gpio_gecko_configure,
	.port_get_raw = gpio_gecko_port_get_raw,
	.port_set_masked_raw = gpio_gecko_port_set_masked_raw,
	.port_set_bits_raw = gpio_gecko_port_set_bits_raw,
	.port_clear_bits_raw = gpio_gecko_port_clear_bits_raw,
	.port_toggle_bits = gpio_gecko_port_toggle_bits,
	.pin_interrupt_configure = gpio_gecko_pin_interrupt_configure,
	.manage_callback = gpio_gecko_manage_callback,
	.enable_callback = gpio_gecko_enable_callback,
	.disable_callback = gpio_gecko_disable_callback,
	};

	static const struct gpio_driver_api gpio_gecko_common_driver_api = {
	.manage_callback = gpio_gecko_manage_callback,
	.enable_callback = gpio_gecko_enable_callback,
	.disable_callback = gpio_gecko_disable_callback,
	};

	#ifdef CONFIG_GPIO_GECKO
	static int gpio_gecko_common_init(struct device *dev);

	static const struct gpio_gecko_common_config gpio_gecko_common_config = {
	};

	static struct gpio_gecko_common_data gpio_gecko_common_data;

	DEVICE_AND_API_INIT(gpio_gecko_common, DT_GPIO_GECKO_COMMON_NAME,
	gpio_gecko_common_init,
	&gpio_gecko_common_data, &gpio_gecko_common_config,
	POST_KERNEL, CONFIG_GPIO_GECKO_COMMON_INIT_PRIORITY,
	&gpio_gecko_common_driver_api);

	static int gpio_gecko_common_init(struct device *dev)
	{
	gpio_gecko_common_data.count = 0;
	IRQ_CONNECT(GPIO_EVEN_IRQn, DT_GPIO_GECKO_COMMON_EVEN_PRI,
	gpio_gecko_common_isr, DEVICE_GET(gpio_gecko_common), 0);

	IRQ_CONNECT(GPIO_ODD_IRQn, DT_GPIO_GECKO_COMMON_ODD_PRI,
	gpio_gecko_common_isr, DEVICE_GET(gpio_gecko_common), 0);

	irq_enable(GPIO_EVEN_IRQn);
	irq_enable(GPIO_ODD_IRQn);

	return 0;
	}
	#endif /* CONFIG_GPIO_GECKO */

	#define GPIO_PORT_INIT(pl, pu) \
	static int gpio_gecko_port##pl##_init(struct device *dev); \
	\
	static const struct gpio_gecko_config gpio_gecko_port##pl##_config = { \
	.common = { \
	.port_pin_mask = (gpio_port_pins_t)(-1), \
	}, \
	.gpio_base = &GPIO->P[gpioPort##pu], \
	.gpio_index = gpioPort##pu, \
	}; \
	\
	static struct gpio_gecko_data gpio_gecko_port##pl##_data; \
	\
	DEVICE_AND_API_INIT(gpio_gecko_port##pl, DT_GPIO_GECKO_PORT##pu##_NAME, \
	gpio_gecko_port##pl##_init, \
	&gpio_gecko_port##pl##_data, \
	&gpio_gecko_port##pl##_config, \
	POST_KERNEL, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, \
	&gpio_gecko_driver_api); \
	\
	static int gpio_gecko_port##pl##_init(struct device *dev) \
	{ \
	gpio_gecko_add_port(&gpio_gecko_common_data, dev); \
	return 0; \
	}

	#ifdef CONFIG_GPIO_GECKO_PORTA
	GPIO_PORT_INIT(a, A)
	#endif /* CONFIG_GPIO_GECKO_PORTA */

	#ifdef CONFIG_GPIO_GECKO_PORTB
	GPIO_PORT_INIT(b, B)
	#endif /* CONFIG_GPIO_GECKO_PORTB */

	#ifdef CONFIG_GPIO_GECKO_PORTC
	GPIO_PORT_INIT(c, C)
	#endif /* CONFIG_GPIO_GECKO_PORTC */

	#ifdef CONFIG_GPIO_GECKO_PORTD
	GPIO_PORT_INIT(d, D)
	#endif /* CONFIG_GPIO_GECKO_PORTD */

	#ifdef CONFIG_GPIO_GECKO_PORTE
	GPIO_PORT_INIT(e, E)
	#endif /* CONFIG_GPIO_GECKO_PORTE */

	#ifdef CONFIG_GPIO_GECKO_PORTF
	GPIO_PORT_INIT(f, F)
	#endif /* CONFIG_GPIO_GECKO_PORTF */

	#ifdef CONFIG_GPIO_GECKO_PORTG
	GPIO_PORT_INIT(g, G)
	#endif /* CONFIG_GPIO_GECKO_PORTG */

	#ifdef CONFIG_GPIO_GECKO_PORTH
	GPIO_PORT_INIT(h, H)
	#endif /* CONFIG_GPIO_GECKO_PORTH */

	#ifdef CONFIG_GPIO_GECKO_PORTI
	GPIO_PORT_INIT(i, I)
	#endif /* CONFIG_GPIO_GECKO_PORTI */

	#ifdef CONFIG_GPIO_GECKO_PORTJ
	GPIO_PORT_INIT(j, J)
	#endif /* CONFIG_GPIO_GECKO_PORTJ */

	#ifdef CONFIG_GPIO_GECKO_PORTK
	GPIO_PORT_INIT(k, K)
	#endif /* CONFIG_GPIO_GECKO_PORTK */