Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Freescale MPL115A2 pressure/temperature sensor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (c) 2014 Peter Meerwald <pmeerw@pmeerw.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * (7-bit I2C slave address 0x60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * Datasheet: http://www.nxp.com/files/sensors/doc/data_sheet/MPL115A2.pdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "mpl115.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static int mpl115_i2c_init(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static int mpl115_i2c_read(struct device *dev, u8 address)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	return i2c_smbus_read_word_swapped(to_i2c_client(dev), address);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static int mpl115_i2c_write(struct device *dev, u8 address, u8 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	return i2c_smbus_write_byte_data(to_i2c_client(dev), address, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static const struct mpl115_ops mpl115_i2c_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	.init = mpl115_i2c_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	.read = mpl115_i2c_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	.write = mpl115_i2c_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static int mpl115_i2c_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 			 const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	return mpl115_probe(&client->dev, id->name, &mpl115_i2c_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static const struct i2c_device_id mpl115_i2c_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	{ "mpl115", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) MODULE_DEVICE_TABLE(i2c, mpl115_i2c_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static struct i2c_driver mpl115_i2c_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		.name	= "mpl115",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	.probe = mpl115_i2c_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	.id_table = mpl115_i2c_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) module_i2c_driver(mpl115_i2c_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) MODULE_DESCRIPTION("Freescale MPL115A2 pressure/temperature driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) MODULE_LICENSE("GPL");