4  * SPDX-License-Identifier: Apache-2.0
12  * bits resolution respectively. Data sheet can be found here:
64 static int dacx0501_reg_read(const struct device *dev, const uint8_t addr, uint16_t *data)  in dacx0501_reg_read()  argument
66 	const struct dacx0501_config *config = dev->config;  in dacx0501_reg_read()
70 	status = i2c_write_read_dt(&config->i2c_spec, &addr, sizeof(addr), raw_data,  in dacx0501_reg_read()
77 	*data = sys_get_be16(raw_data);  in dacx0501_reg_read()
81 static int dacx0501_reg_write(const struct device *dev, uint8_t addr, uint16_t data)  in dacx0501_reg_write()  argument
83 	const struct dacx0501_config *config = dev->config;  in dacx0501_reg_write()
87 	sys_put_be16(data, write_cmd + 1);  in dacx0501_reg_write()
89 	return i2c_write_dt(&config->i2c_spec, write_cmd, sizeof(write_cmd));  in dacx0501_reg_write()
95 	struct dacx0501_data *data = dev->data;  in dacx0501_channel_setup()  local
98 	if (channel_cfg->channel_id != 0) {  in dacx0501_channel_setup()
99 		LOG_ERR("Unsupported channel %d", channel_cfg->channel_id);  in dacx0501_channel_setup()
100 		return -ENOTSUP;  in dacx0501_channel_setup()
103 	if (channel_cfg->resolution != data->resolution) {  in dacx0501_channel_setup()
104 		LOG_ERR("Unsupported resolution %d. Actual: %d", channel_cfg->resolution,  in dacx0501_channel_setup()
105 			data->resolution);  in dacx0501_channel_setup()
106 		return -ENOTSUP;  in dacx0501_channel_setup()
109 	if (channel_cfg->internal) {  in dacx0501_channel_setup()
111 		return -ENOTSUP;  in dacx0501_channel_setup()
119 	struct dacx0501_data *data = dev->data;  in dacx0501_write_value()  local
123 		return -ENOTSUP;  in dacx0501_write_value()
126 	if (value >= (1 << data->resolution)) {  in dacx0501_write_value()
128 		return -EINVAL;  in dacx0501_write_value()
131 	value <<= (16 - data->resolution);  in dacx0501_write_value()
138 	const struct dacx0501_config *config = dev->config;  in dacx0501_init()
139 	struct dacx0501_data *data = dev->data;  in dacx0501_init()  local
143 	if (!i2c_is_ready_dt(&config->i2c_spec)) {  in dacx0501_init()
144 		LOG_ERR("I2C bus %s not ready", config->i2c_spec.bus->name);  in dacx0501_init()
145 		return -ENODEV;  in dacx0501_init()
154 	/* See DEVICE_ID register RES field in the data sheet. */  in dacx0501_init()
155 	data->resolution = 16 - 2 * FIELD_GET(DACX0501_MASK_DEVICE_ID_RES, device_id);  in dacx0501_init()
159 					       config->voltage_reference == REF_EXTERNAL));  in dacx0501_init()
167 		FIELD_PREP(DACX0501_MASK_GAIN_REFDIV_EN, config->output_gain == VM_DIV2) |  in dacx0501_init()
168 			FIELD_PREP(DACX0501_MASK_GAIN_BUFF_GAIN, config->output_gain == VM_MUL2));  in dacx0501_init()