5  * SPDX-License-Identifier: Apache-2.0
26  * @param data - array of data to encode
27  * @param encode - action to be performed - true(encode), false(decode)
42 	 * https://www.analog.com/en/app-notes/how-to-program-the-max14906-quadchannel-  in max149x6_crc()
43 	 *					industrial-digital-output-digital-input.html  in max149x6_crc()
47 		data_bit = (data[0] >> (7 - i)) & 0x01;  in max149x6_crc()
57 		data_bit = (data[1] >> (7 - i)) & 0x01;  in max149x6_crc()
67 		data_bit = (extra_byte >> (7 - i)) & 0x01;  in max149x6_crc()
82  * @param dev - MAX149x6 device config.
83  * @param addr - Register value to which data is written.
84  * @param val - Value which is to be written to requested register.
90 	uint8_t crc;  in max149x6_reg_transceive()  local
96 	const struct max149x6_config *config = dev->config;  in max149x6_reg_transceive()
100 		.len = config->pkt_size,  in max149x6_reg_transceive()
106 		.len = config->pkt_size,  in max149x6_reg_transceive()
110 	if (config->crc_en & 0) {  in max149x6_reg_transceive()
115 			   FIELD_PREP(MAX149x6_CHIP_ADDR_MASK, config->spi_addr) |  in max149x6_reg_transceive()
119 	/* If CRC enabled calculate it */  in max149x6_reg_transceive()
120 	if (config->crc_en) {  in max149x6_reg_transceive()
125 	ret = spi_transceive_dt(&config->spi, &tx, &rx);  in max149x6_reg_transceive()
132 	/* if CRC enabled check readed */  in max149x6_reg_transceive()
133 	if (config->crc_en) {  in max149x6_reg_transceive()
134 		crc = max149x6_crc(&local_rx_buff[0], false);  in max149x6_reg_transceive()
135 		if (crc != (local_rx_buff[2] & 0x1F)) {  in max149x6_reg_transceive()
136 			LOG_ERR("READ CRC ERR (%d)-(%d)\n", crc, (local_rx_buff[2] & 0x1F));  in max149x6_reg_transceive()
137 			return -EINVAL;  in max149x6_reg_transceive()
145 	/* In case of write we are getting 2 diagnostic bytes - byte0 & byte1  in max149x6_reg_transceive()