drivers/dac/dac_dacx0508.c - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /*
  * Copyright (c) 2020 M2I Corporation
  *
  * SPDX-License-Identifier: Apache-2.0
  */

 #include <zephyr/zephyr.h>
 #include <zephyr/drivers/spi.h>
 #include <zephyr/drivers/dac.h>
 #include <zephyr/logging/log.h>
 #include <zephyr/dt-bindings/dac/dacx0508.h>

 LOG_MODULE_REGISTER(dac_dacx0508, CONFIG_DAC_LOG_LEVEL);

 #define DACX0508_REG_DEVICE_ID   0x01U
 #define DACX0508_REG_CONFIG      0x03U
 #define DACX0508_REG_GAIN        0x04U
 #define DACX0508_REG_TRIGGER     0x05U
 #define DACX0508_REG_STATUS      0x07U
 #define DACX0508_REG_DAC0        0x08U

 #define DACX0508_MASK_DEVICE_ID_8CH          BIT(11)
 #define DACX0508_MASK_CONFIG_REF_PWDWN       BIT(8)
 #define DACX0508_MASK_GAIN_BUFF_GAIN(x)      BIT(x)
 #define DACX0508_MASK_GAIN_REFDIV_EN         BIT(8)
 #define DACX0508_MASK_TRIGGER_SOFT_RESET     (BIT(1) | BIT(3))
 #define DACX0508_MASK_STATUS_REF_ALM         BIT(0)

 #define DACX0508_READ_CMD       0x80
 #define DACX0508_POR_DELAY      250
 #define DACX0508_MAX_CHANNEL    8

 struct dacx0508_config {
 	struct spi_dt_spec bus;
 	uint8_t resolution;
 	uint8_t reference;
 	uint8_t gain[8];
 };

 struct dacx0508_data {
 	uint8_t configured;
 };

 static int dacx0508_reg_read(const struct device *dev, uint8_t addr,
 			     uint8_t *data)
 {
 	const struct dacx0508_config *config = dev->config;
 	const struct spi_buf buf[2] = {
 		{
 			.buf = &addr,
 			.len = sizeof(addr)
 		},
 		{
 			.buf = data,
 			.len = 2
 		}
 	};
 	struct spi_buf_set tx = {
 		.buffers = buf,
 		.count = ARRAY_SIZE(buf),
 	};
 	struct spi_buf_set rx = {
 		.buffers = buf,
 		.count = ARRAY_SIZE(buf)
 	};
 	uint8_t tmp;
 	int ret;

 	if (k_is_in_isr()) {
 		/* Prevent SPI transactions from an ISR */
 		return -EWOULDBLOCK;
 	}

 	tmp = addr |= DACX0508_READ_CMD;

 	ret = spi_write_dt(&config->bus, &tx);
 	if (ret) {
 		return ret;
 	}

 	ret = spi_read_dt(&config->bus, &rx);
 	if (ret) {
 		return ret;
 	}

 	if (addr != tmp) {
 		return -EIO;
 	}

 	return 0;
 }

 static int dacx0508_reg_write(const struct device *dev, uint8_t addr,
 			      	uint8_t *data)
 {
 	const struct dacx0508_config *config = dev->config;
 	const struct spi_buf buf[2] = {
 		{
 			.buf = &addr,
 			.len = sizeof(addr)
 		},
 		{
 			.buf = data,
 			.len = 2
 		}
 	};
 	struct spi_buf_set tx = {
 		.buffers = buf,
 		.count = ARRAY_SIZE(buf),
 	};

 	if (k_is_in_isr()) {
 		/* Prevent SPI transactions from an ISR */
 		return -EWOULDBLOCK;
 	}

 	return spi_write_dt(&config->bus, &tx);
 }

 int dacx0508_reg_update(const struct device *dev, uint8_t addr,
 			 uint16_t mask, bool setting)
 {
 	uint8_t regval[2] = {0, };
 	uint16_t tmp;
 	int ret;

 	ret = dacx0508_reg_read(dev, addr, regval);
 	if (ret < 0) {
 		return ret;
 	}
 	tmp = (regval[0] << 8) | regval[1];

 	if (setting) {
 		tmp |= mask;
 	} else {
 		tmp &= ~mask;
 	}

 	regval[0] = tmp >> 8;
 	regval[1] = tmp & 0xFF;

 	ret = dacx0508_reg_write(dev, addr, regval);
 	if (ret) {
 		return ret;
 	}

 	return 0;
 }

 static int dacx0508_channel_setup(const struct device *dev,
 				   const struct dac_channel_cfg *channel_cfg)
 {
 	const struct dacx0508_config *config = dev->config;
 	struct dacx0508_data *data = dev->data;

 	if (channel_cfg->channel_id > DACX0508_MAX_CHANNEL - 1) {
 		LOG_ERR("Unsupported channel %d", channel_cfg->channel_id);
 		return -ENOTSUP;
 	}

 	if (channel_cfg->resolution != config->resolution) {
 		LOG_ERR("Unsupported resolution %d", channel_cfg->resolution);
 		return -ENOTSUP;
 	}

 	data->configured |= BIT(channel_cfg->channel_id);

 	return 0;
 }

 static int dacx0508_write_value(const struct device *dev, uint8_t channel,
 				uint32_t value)
 {
 	const struct dacx0508_config *config = dev->config;
 	struct dacx0508_data *data = dev->data;
 	uint8_t regval[2];
 	int ret;

 	if (channel > DACX0508_MAX_CHANNEL - 1) {
 		LOG_ERR("unsupported channel %d", channel);
 		return -ENOTSUP;
 	}

 	if (!(data->configured & BIT(channel))) {
 		LOG_ERR("Channel not initialized");
 		return -EINVAL;
 	}

 	if (value >= (1 << config->resolution)) {
 		LOG_ERR("Value %d out of range", value);
 		return -EINVAL;
 	}

 	value <<= (16 - config->resolution);
 	regval[0] = value >> 8;
 	regval[1] = value & 0xFF;

 	ret = dacx0508_reg_write(dev, DACX0508_REG_DAC0 + channel, regval);
 	if (ret) {
 		return -EIO;
 	}

 	return 0;
 }

 static int dacx0508_soft_reset(const struct device *dev)
 {
 	uint8_t regval[2] = {0, DACX0508_MASK_TRIGGER_SOFT_RESET};
 	int ret;

 	ret = dacx0508_reg_write(dev, DACX0508_REG_TRIGGER, regval);
 	if (ret) {
 		return -EIO;
 	}
 	k_usleep(DACX0508_POR_DELAY);

 	return 0;
 }

 static int dacx0508_device_id_check(const struct device *dev)
 {
 	const struct dacx0508_config *config = dev->config;
 	uint8_t regval[2] = {0, };
 	uint8_t resolution;
 	uint16_t dev_id;
 	int ret;

 	ret = dacx0508_reg_read(dev, DACX0508_REG_DEVICE_ID, regval);
 	if (ret) {
 		LOG_ERR("Unable to read Device ID");
 		return -EIO;
 	}
 	dev_id = (regval[0] << 8) | regval[1];

 	resolution = dev_id >> 12;
 	if (resolution != (16 - config->resolution) >> 1) {
 		LOG_ERR("Not match chip resolution");
 		return -EINVAL;
 	}

 	if ((dev_id & DACX0508_MASK_DEVICE_ID_8CH) !=
 				DACX0508_MASK_DEVICE_ID_8CH) {
 		LOG_ERR("Support channels mismatch");
 		return -EINVAL;
 	}

 	return 0;
 }

 static int dacx0508_setup(const struct device *dev)
 {
 	const struct dacx0508_config *config = dev->config;
 	uint8_t regval[2] = {0, }, tmp = 0;
 	bool ref_pwdwn, refdiv_en;
 	int ret;

 	switch (config->reference) {
 	case DACX0508_REF_INTERNAL_1:
 		ref_pwdwn = false;
 		refdiv_en = false;
 		break;
 	case DACX0508_REF_INTERNAL_1_2:
 		ref_pwdwn = false;
 		refdiv_en = true;
 		break;
 	case DACX0508_REF_EXTERNAL_1:
 		ref_pwdwn = true;
 		refdiv_en = false;
 		break;
 	case DACX0508_REF_EXTERNAL_1_2:
 		ref_pwdwn = true;
 		refdiv_en = true;
 		break;
 	default:
 		LOG_ERR("unsupported channel reference type '%d'",
 			config->reference);
 		return -ENOTSUP;
 	}

 	ret = dacx0508_reg_update(dev, DACX0508_REG_CONFIG,
 				  DACX0508_MASK_CONFIG_REF_PWDWN, ref_pwdwn);
 	if (ret) {
 		LOG_ERR("GAIN Register update failed");
 		return -EIO;
 	}

 	ret = dacx0508_reg_update(dev, DACX0508_REG_GAIN,
 				  DACX0508_MASK_GAIN_REFDIV_EN, refdiv_en);
 	if (ret) {
 		LOG_ERR("GAIN Register update failed");
 		return -EIO;
 	}


 	for (int i = 0; i < 8; i++) {
 		tmp |= config->gain[i] << i;
 	}

 	ret = dacx0508_reg_read(dev, DACX0508_REG_GAIN, regval);
 	if (ret) {
 		LOG_ERR("Unable to read GAIN Register");
 		return -EIO;
 	}

 	regval[1] = tmp;
 	ret = dacx0508_reg_write(dev, DACX0508_REG_GAIN, regval);
 	if (ret) {
 		LOG_ERR("Unable to write GAIN Register");
 		return -EIO;
 	}

 	ret = dacx0508_reg_read(dev, DACX0508_REG_STATUS, regval);
 	if (ret) {
 		LOG_ERR("Unable to read STATUS Register");
 		return -EIO;
 	}
 	if ((regval[1] & DACX0508_MASK_STATUS_REF_ALM) ==
 				DACX0508_MASK_STATUS_REF_ALM) {
 		LOG_ERR("Difference between VREF/DIV and VDD is "
 			"below the required minimum analog threshold");
 		return -EIO;
 	}

 	return 0;
 }

 static int dacx0508_init(const struct device *dev)
 {
 	const struct dacx0508_config *config = dev->config;
 	struct dacx0508_data *data = dev->data;
 	int ret;

 	if (!spi_is_ready(&config->bus)) {
 		LOG_ERR("SPI bus %s not ready", config->bus.bus->name);
 		return -ENODEV;
 	}

 	ret = dacx0508_soft_reset(dev);
 	if (ret) {
 		LOG_ERR("Soft-reset failed");
 		return ret;
 	}

 	ret = dacx0508_device_id_check(dev);
 	if (ret) {
 		return ret;
 	}

 	ret = dacx0508_setup(dev);
 	if (ret) {
 		return ret;
 	}

 	data->configured = 0;

 	return 0;
 }

 static const struct dac_driver_api dacx0508_driver_api = {
 	.channel_setup = dacx0508_channel_setup,
 	.write_value = dacx0508_write_value,
 };

 #define INST_DT_DACX0508(inst, t) DT_INST(inst, ti_dac##t)

 #define DACX0508_DEVICE(t, n, res) \
 	static struct dacx0508_data dac##t##_data_##n; \
 	static const struct dacx0508_config dac##t##_config_##n = { \
 		.bus = SPI_DT_SPEC_GET(INST_DT_DACX0508(n, t), \
 			SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | \
 			SPI_WORD_SET(8) | SPI_MODE_CPHA, 0), \
 		.resolution = res, \
 		.reference = DT_PROP(INST_DT_DACX0508(n, t), \
 					     voltage_reference), \
 		.gain[0] = DT_PROP(INST_DT_DACX0508(n, t), channel0_gain), \
 		.gain[1] = DT_PROP(INST_DT_DACX0508(n, t), channel1_gain), \
 		.gain[2] = DT_PROP(INST_DT_DACX0508(n, t), channel2_gain), \
 		.gain[3] = DT_PROP(INST_DT_DACX0508(n, t), channel3_gain), \
 		.gain[4] = DT_PROP(INST_DT_DACX0508(n, t), channel4_gain), \
 		.gain[5] = DT_PROP(INST_DT_DACX0508(n, t), channel5_gain), \
 		.gain[6] = DT_PROP(INST_DT_DACX0508(n, t), channel6_gain), \
 		.gain[7] = DT_PROP(INST_DT_DACX0508(n, t), channel7_gain), \
 	}; \
 	DEVICE_DT_DEFINE(INST_DT_DACX0508(n, t), \
 			    &dacx0508_init, NULL, \
 			    &dac##t##_data_##n, \
 			    &dac##t##_config_##n, POST_KERNEL, \
 			    CONFIG_DAC_INIT_PRIORITY, \
 			    &dacx0508_driver_api)

 /*
  * DAC60508: 12-bit
  */
 #define DAC60508_DEVICE(n) DACX0508_DEVICE(60508, n, 12)

 /*
  * DAC70508: 14-bit
  */
 #define DAC70508_DEVICE(n) DACX0508_DEVICE(70508, n, 14)

 /*
  * DAC80508: 16-bit
  */
 #define DAC80508_DEVICE(n) DACX0508_DEVICE(80508, n, 16)

 #define CALL_WITH_ARG(arg, expr) expr(arg)

 #define INST_DT_DACX0508_FOREACH(t, inst_expr) \
 	LISTIFY(DT_NUM_INST_STATUS_OKAY(ti_dac##t), \
 		     CALL_WITH_ARG, (), inst_expr)

 INST_DT_DACX0508_FOREACH(60508, DAC60508_DEVICE);
 INST_DT_DACX0508_FOREACH(70508, DAC70508_DEVICE);
 INST_DT_DACX0508_FOREACH(80508, DAC80508_DEVICE);
	/*
	* Copyright (c) 2020 M2I Corporation
	*
	* SPDX-License-Identifier: Apache-2.0
	*/

	#include <zephyr/zephyr.h>
	#include <zephyr/drivers/spi.h>
	#include <zephyr/drivers/dac.h>
	#include <zephyr/logging/log.h>
	#include <zephyr/dt-bindings/dac/dacx0508.h>

	LOG_MODULE_REGISTER(dac_dacx0508, CONFIG_DAC_LOG_LEVEL);

	#define DACX0508_REG_DEVICE_ID 0x01U
	#define DACX0508_REG_CONFIG 0x03U
	#define DACX0508_REG_GAIN 0x04U
	#define DACX0508_REG_TRIGGER 0x05U
	#define DACX0508_REG_STATUS 0x07U
	#define DACX0508_REG_DAC0 0x08U

	#define DACX0508_MASK_DEVICE_ID_8CH BIT(11)
	#define DACX0508_MASK_CONFIG_REF_PWDWN BIT(8)
	#define DACX0508_MASK_GAIN_BUFF_GAIN(x) BIT(x)
	#define DACX0508_MASK_GAIN_REFDIV_EN BIT(8)
	#define DACX0508_MASK_TRIGGER_SOFT_RESET (BIT(1) \| BIT(3))
	#define DACX0508_MASK_STATUS_REF_ALM BIT(0)

	#define DACX0508_READ_CMD 0x80
	#define DACX0508_POR_DELAY 250
	#define DACX0508_MAX_CHANNEL 8

	struct dacx0508_config {
	struct spi_dt_spec bus;
	uint8_t resolution;
	uint8_t reference;
	uint8_t gain[8];
	};

	struct dacx0508_data {
	uint8_t configured;
	};

	static int dacx0508_reg_read(const struct device *dev, uint8_t addr,
	uint8_t *data)
	{
	const struct dacx0508_config *config = dev->config;
	const struct spi_buf buf[2] = {
	{
	.buf = &addr,
	.len = sizeof(addr)
	},
	{
	.buf = data,
	.len = 2
	}
	};
	struct spi_buf_set tx = {
	.buffers = buf,
	.count = ARRAY_SIZE(buf),
	};
	struct spi_buf_set rx = {
	.buffers = buf,
	.count = ARRAY_SIZE(buf)
	};
	uint8_t tmp;
	int ret;

	if (k_is_in_isr()) {
	/* Prevent SPI transactions from an ISR */
	return -EWOULDBLOCK;
	}

	tmp = addr \|= DACX0508_READ_CMD;

	ret = spi_write_dt(&config->bus, &tx);
	if (ret) {
	return ret;
	}

	ret = spi_read_dt(&config->bus, &rx);
	if (ret) {
	return ret;
	}

	if (addr != tmp) {
	return -EIO;
	}

	return 0;
	}

	static int dacx0508_reg_write(const struct device *dev, uint8_t addr,
	uint8_t *data)
	{
	const struct dacx0508_config *config = dev->config;
	const struct spi_buf buf[2] = {
	{
	.buf = &addr,
	.len = sizeof(addr)
	},
	{
	.buf = data,
	.len = 2
	}
	};
	struct spi_buf_set tx = {
	.buffers = buf,
	.count = ARRAY_SIZE(buf),
	};

	if (k_is_in_isr()) {
	/* Prevent SPI transactions from an ISR */
	return -EWOULDBLOCK;
	}

	return spi_write_dt(&config->bus, &tx);
	}

	int dacx0508_reg_update(const struct device *dev, uint8_t addr,
	uint16_t mask, bool setting)
	{
	uint8_t regval[2] = {0, };
	uint16_t tmp;
	int ret;

	ret = dacx0508_reg_read(dev, addr, regval);
	if (ret < 0) {
	return ret;
	}
	tmp = (regval[0] << 8) \| regval[1];

	if (setting) {
	tmp \|= mask;
	} else {
	tmp &= ~mask;
	}

	regval[0] = tmp >> 8;
	regval[1] = tmp & 0xFF;

	ret = dacx0508_reg_write(dev, addr, regval);
	if (ret) {
	return ret;
	}

	return 0;
	}

	static int dacx0508_channel_setup(const struct device *dev,
	const struct dac_channel_cfg *channel_cfg)
	{
	const struct dacx0508_config *config = dev->config;
	struct dacx0508_data *data = dev->data;

	if (channel_cfg->channel_id > DACX0508_MAX_CHANNEL - 1) {
	LOG_ERR("Unsupported channel %d", channel_cfg->channel_id);
	return -ENOTSUP;
	}

	if (channel_cfg->resolution != config->resolution) {
	LOG_ERR("Unsupported resolution %d", channel_cfg->resolution);
	return -ENOTSUP;
	}

	data->configured \|= BIT(channel_cfg->channel_id);

	return 0;
	}

	static int dacx0508_write_value(const struct device *dev, uint8_t channel,
	uint32_t value)
	{
	const struct dacx0508_config *config = dev->config;
	struct dacx0508_data *data = dev->data;
	uint8_t regval[2];
	int ret;

	if (channel > DACX0508_MAX_CHANNEL - 1) {
	LOG_ERR("unsupported channel %d", channel);
	return -ENOTSUP;
	}

	if (!(data->configured & BIT(channel))) {
	LOG_ERR("Channel not initialized");
	return -EINVAL;
	}

	if (value >= (1 << config->resolution)) {
	LOG_ERR("Value %d out of range", value);
	return -EINVAL;
	}

	value <<= (16 - config->resolution);
	regval[0] = value >> 8;
	regval[1] = value & 0xFF;

	ret = dacx0508_reg_write(dev, DACX0508_REG_DAC0 + channel, regval);
	if (ret) {
	return -EIO;
	}

	return 0;
	}

	static int dacx0508_soft_reset(const struct device *dev)
	{
	uint8_t regval[2] = {0, DACX0508_MASK_TRIGGER_SOFT_RESET};
	int ret;

	ret = dacx0508_reg_write(dev, DACX0508_REG_TRIGGER, regval);
	if (ret) {
	return -EIO;
	}
	k_usleep(DACX0508_POR_DELAY);

	return 0;
	}

	static int dacx0508_device_id_check(const struct device *dev)
	{
	const struct dacx0508_config *config = dev->config;
	uint8_t regval[2] = {0, };
	uint8_t resolution;
	uint16_t dev_id;
	int ret;

	ret = dacx0508_reg_read(dev, DACX0508_REG_DEVICE_ID, regval);
	if (ret) {
	LOG_ERR("Unable to read Device ID");
	return -EIO;
	}
	dev_id = (regval[0] << 8) \| regval[1];

	resolution = dev_id >> 12;
	if (resolution != (16 - config->resolution) >> 1) {
	LOG_ERR("Not match chip resolution");
	return -EINVAL;
	}

	if ((dev_id & DACX0508_MASK_DEVICE_ID_8CH) !=
	DACX0508_MASK_DEVICE_ID_8CH) {
	LOG_ERR("Support channels mismatch");
	return -EINVAL;
	}

	return 0;
	}

	static int dacx0508_setup(const struct device *dev)
	{
	const struct dacx0508_config *config = dev->config;
	uint8_t regval[2] = {0, }, tmp = 0;
	bool ref_pwdwn, refdiv_en;
	int ret;

	switch (config->reference) {
	case DACX0508_REF_INTERNAL_1:
	ref_pwdwn = false;
	refdiv_en = false;
	break;
	case DACX0508_REF_INTERNAL_1_2:
	ref_pwdwn = false;
	refdiv_en = true;
	break;
	case DACX0508_REF_EXTERNAL_1:
	ref_pwdwn = true;
	refdiv_en = false;
	break;
	case DACX0508_REF_EXTERNAL_1_2:
	ref_pwdwn = true;
	refdiv_en = true;
	break;
	default:
	LOG_ERR("unsupported channel reference type '%d'",
	config->reference);
	return -ENOTSUP;
	}

	ret = dacx0508_reg_update(dev, DACX0508_REG_CONFIG,
	DACX0508_MASK_CONFIG_REF_PWDWN, ref_pwdwn);
	if (ret) {
	LOG_ERR("GAIN Register update failed");
	return -EIO;
	}

	ret = dacx0508_reg_update(dev, DACX0508_REG_GAIN,
	DACX0508_MASK_GAIN_REFDIV_EN, refdiv_en);
	if (ret) {
	LOG_ERR("GAIN Register update failed");
	return -EIO;
	}


	for (int i = 0; i < 8; i++) {
	tmp \|= config->gain[i] << i;
	}

	ret = dacx0508_reg_read(dev, DACX0508_REG_GAIN, regval);
	if (ret) {
	LOG_ERR("Unable to read GAIN Register");
	return -EIO;
	}

	regval[1] = tmp;
	ret = dacx0508_reg_write(dev, DACX0508_REG_GAIN, regval);
	if (ret) {
	LOG_ERR("Unable to write GAIN Register");
	return -EIO;
	}

	ret = dacx0508_reg_read(dev, DACX0508_REG_STATUS, regval);
	if (ret) {
	LOG_ERR("Unable to read STATUS Register");
	return -EIO;
	}
	if ((regval[1] & DACX0508_MASK_STATUS_REF_ALM) ==
	DACX0508_MASK_STATUS_REF_ALM) {
	LOG_ERR("Difference between VREF/DIV and VDD is "
	"below the required minimum analog threshold");
	return -EIO;
	}

	return 0;
	}

	static int dacx0508_init(const struct device *dev)
	{
	const struct dacx0508_config *config = dev->config;
	struct dacx0508_data *data = dev->data;
	int ret;

	if (!spi_is_ready(&config->bus)) {
	LOG_ERR("SPI bus %s not ready", config->bus.bus->name);
	return -ENODEV;
	}

	ret = dacx0508_soft_reset(dev);
	if (ret) {
	LOG_ERR("Soft-reset failed");
	return ret;
	}

	ret = dacx0508_device_id_check(dev);
	if (ret) {
	return ret;
	}

	ret = dacx0508_setup(dev);
	if (ret) {
	return ret;
	}

	data->configured = 0;

	return 0;
	}

	static const struct dac_driver_api dacx0508_driver_api = {
	.channel_setup = dacx0508_channel_setup,
	.write_value = dacx0508_write_value,
	};

	#define INST_DT_DACX0508(inst, t) DT_INST(inst, ti_dac##t)

	#define DACX0508_DEVICE(t, n, res) \
	static struct dacx0508_data dac##t##_data_##n; \
	static const struct dacx0508_config dac##t##_config_##n = { \
	.bus = SPI_DT_SPEC_GET(INST_DT_DACX0508(n, t), \
	SPI_OP_MODE_MASTER \| SPI_TRANSFER_MSB \| \
	SPI_WORD_SET(8) \| SPI_MODE_CPHA, 0), \
	.resolution = res, \
	.reference = DT_PROP(INST_DT_DACX0508(n, t), \
	voltage_reference), \
	.gain[0] = DT_PROP(INST_DT_DACX0508(n, t), channel0_gain), \
	.gain[1] = DT_PROP(INST_DT_DACX0508(n, t), channel1_gain), \
	.gain[2] = DT_PROP(INST_DT_DACX0508(n, t), channel2_gain), \
	.gain[3] = DT_PROP(INST_DT_DACX0508(n, t), channel3_gain), \
	.gain[4] = DT_PROP(INST_DT_DACX0508(n, t), channel4_gain), \
	.gain[5] = DT_PROP(INST_DT_DACX0508(n, t), channel5_gain), \
	.gain[6] = DT_PROP(INST_DT_DACX0508(n, t), channel6_gain), \
	.gain[7] = DT_PROP(INST_DT_DACX0508(n, t), channel7_gain), \
	}; \
	DEVICE_DT_DEFINE(INST_DT_DACX0508(n, t), \
	&dacx0508_init, NULL, \
	&dac##t##_data_##n, \
	&dac##t##_config_##n, POST_KERNEL, \
	CONFIG_DAC_INIT_PRIORITY, \
	&dacx0508_driver_api)

	/*
	* DAC60508: 12-bit
	*/
	#define DAC60508_DEVICE(n) DACX0508_DEVICE(60508, n, 12)

	/*
	* DAC70508: 14-bit
	*/
	#define DAC70508_DEVICE(n) DACX0508_DEVICE(70508, n, 14)

	/*
	* DAC80508: 16-bit
	*/
	#define DAC80508_DEVICE(n) DACX0508_DEVICE(80508, n, 16)

	#define CALL_WITH_ARG(arg, expr) expr(arg)

	#define INST_DT_DACX0508_FOREACH(t, inst_expr) \
	LISTIFY(DT_NUM_INST_STATUS_OKAY(ti_dac##t), \
	CALL_WITH_ARG, (), inst_expr)

	INST_DT_DACX0508_FOREACH(60508, DAC60508_DEVICE);
	INST_DT_DACX0508_FOREACH(70508, DAC70508_DEVICE);
	INST_DT_DACX0508_FOREACH(80508, DAC80508_DEVICE);