1 // SPDX-License-Identifier: GPL-2.0
40 	struct i2c_client *client = to_i2c_client(state->dev);  in sps30_i2c_xfer()
45 	 * sending two i2c messages in a row we just send one by one.  in sps30_i2c_xfer()
51 		return -EIO;  in sps30_i2c_xfer()
60 		return -EIO;  in sps30_i2c_xfer()
71 	 * PM1:   upper two bytes, crc8, lower two bytes, crc8  in sps30_i2c_command()
72 	 * PM2P5: upper two bytes, crc8, lower two bytes, crc8  in sps30_i2c_command()
73 	 * PM4:   upper two bytes, crc8, lower two bytes, crc8  in sps30_i2c_command()
74 	 * PM10:  upper two bytes, crc8, lower two bytes, crc8  in sps30_i2c_command()
89 		/* each two bytes are followed by a crc8 */  in sps30_i2c_command()
98 			arg_size -= 2;  in sps30_i2c_command()
112 			dev_err(state->dev, "data integrity check failed\n");  in sps30_i2c_command()
113 			return -EIO;  in sps30_i2c_command()
143 	 * Power-on-reset causes sensor to produce some glitch on i2c bus and  in sps30_i2c_reset()
169 		return -EINTR;  in sps30_i2c_read_meas()
172 		return -ETIMEDOUT;  in sps30_i2c_read_meas()
198 	ret = sps30_i2c_command(state, SPS30_I2C_READ_SERIAL, NULL, 0, buf, sizeof(buf) - 1);  in sps30_i2c_show_info()
202 	dev_info(state->dev, "serial number: %s\n", buf);  in sps30_i2c_show_info()
208 	dev_info(state->dev, "fw version: %u.%u\n", buf[0], buf[1]);  in sps30_i2c_show_info()
226 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))  in sps30_i2c_probe()
227 		return -EOPNOTSUPP;  in sps30_i2c_probe()
231 	return sps30_probe(&client->dev, client->name, NULL, &sps30_i2c_ops);  in sps30_i2c_probe()