6  * SPDX-License-Identifier: Apache-2.0
21 	struct spi_dt_spec bus;  member
29 	const struct ltc166x_config *config = dev->config;  in ltc166x_reg_write()
34 	if (config->resolution == 10) {  in ltc166x_reg_write()
50 	return spi_write_dt(&config->bus, &tx);  in ltc166x_reg_write()
57 	const struct ltc166x_config *config = dev->config;  in ltc166x_channel_setup()
59 	if (channel_cfg->channel_id > config->nchannels - 1) {  in ltc166x_channel_setup()
60 		LOG_ERR("Unsupported channel %d", channel_cfg->channel_id);  in ltc166x_channel_setup()
61 		return -ENOTSUP;  in ltc166x_channel_setup()
64 	if (channel_cfg->resolution != config->resolution) {  in ltc166x_channel_setup()
65 		LOG_ERR("Unsupported resolution %d", channel_cfg->resolution);  in ltc166x_channel_setup()
66 		return -ENOTSUP;  in ltc166x_channel_setup()
75 	const struct ltc166x_config *config = dev->config;  in ltc166x_write_value()
77 	if (channel > config->nchannels - 1) {  in ltc166x_write_value()
79 		return -ENOTSUP;  in ltc166x_write_value()
82 	if (value >= (1 << config->resolution)) {  in ltc166x_write_value()
83 		LOG_ERR("Value %d out of range", value);  in ltc166x_write_value()
84 		return -EINVAL;  in ltc166x_write_value()
92 	const struct ltc166x_config *config = dev->config;  in ltc166x_init()
94 	if (!spi_is_ready_dt(&config->bus)) {  in ltc166x_init()
95 		LOG_ERR("SPI bus %s not ready", config->bus.bus->name);  in ltc166x_init()
96 		return -ENODEV;  in ltc166x_init()
111 		.bus = SPI_DT_SPEC_GET(INST_DT_LTC166X(n, t), \
125  * LTC1660: 10-bit
130  * LTC1665: 8-bit