xref: /openbmc/linux/drivers/iio/accel/adxl355_i2c.c (revision c900529f3d9161bfde5cca0754f83b4d3c3e0220)
112ed2786SPuranjay Mohan // SPDX-License-Identifier: GPL-2.0-only
212ed2786SPuranjay Mohan /*
312ed2786SPuranjay Mohan  * ADXL355 3-Axis Digital Accelerometer I2C driver
412ed2786SPuranjay Mohan  *
512ed2786SPuranjay Mohan  * Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com>
612ed2786SPuranjay Mohan  */
712ed2786SPuranjay Mohan 
812ed2786SPuranjay Mohan #include <linux/i2c.h>
912ed2786SPuranjay Mohan #include <linux/module.h>
1012ed2786SPuranjay Mohan #include <linux/mod_devicetable.h>
1112ed2786SPuranjay Mohan #include <linux/regmap.h>
1212ed2786SPuranjay Mohan 
1312ed2786SPuranjay Mohan #include "adxl355.h"
1412ed2786SPuranjay Mohan 
1512ed2786SPuranjay Mohan static const struct regmap_config adxl355_i2c_regmap_config = {
1612ed2786SPuranjay Mohan 	.reg_bits = 8,
1712ed2786SPuranjay Mohan 	.val_bits = 8,
1812ed2786SPuranjay Mohan 	.max_register = 0x2F,
1912ed2786SPuranjay Mohan 	.rd_table = &adxl355_readable_regs_tbl,
2012ed2786SPuranjay Mohan 	.wr_table = &adxl355_writeable_regs_tbl,
2112ed2786SPuranjay Mohan };
2212ed2786SPuranjay Mohan 
adxl355_i2c_probe(struct i2c_client * client)2312ed2786SPuranjay Mohan static int adxl355_i2c_probe(struct i2c_client *client)
2412ed2786SPuranjay Mohan {
2512ed2786SPuranjay Mohan 	struct regmap *regmap;
26d3532d69SRamona Bolboaca 	const struct adxl355_chip_info *chip_data;
27d3532d69SRamona Bolboaca 
28*ad25fc28SBiju Das 	chip_data = i2c_get_match_data(client);
29d3532d69SRamona Bolboaca 	if (!chip_data)
30*ad25fc28SBiju Das 		return -ENODEV;
3112ed2786SPuranjay Mohan 
3212ed2786SPuranjay Mohan 	regmap = devm_regmap_init_i2c(client, &adxl355_i2c_regmap_config);
3312ed2786SPuranjay Mohan 	if (IS_ERR(regmap)) {
3412ed2786SPuranjay Mohan 		dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
3512ed2786SPuranjay Mohan 			PTR_ERR(regmap));
3612ed2786SPuranjay Mohan 
3712ed2786SPuranjay Mohan 		return PTR_ERR(regmap);
3812ed2786SPuranjay Mohan 	}
3912ed2786SPuranjay Mohan 
40d3532d69SRamona Bolboaca 	return adxl355_core_probe(&client->dev, regmap, chip_data);
4112ed2786SPuranjay Mohan }
4212ed2786SPuranjay Mohan 
4312ed2786SPuranjay Mohan static const struct i2c_device_id adxl355_i2c_id[] = {
44d3532d69SRamona Bolboaca 	{ "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] },
45d3532d69SRamona Bolboaca 	{ "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] },
4612ed2786SPuranjay Mohan 	{ }
4712ed2786SPuranjay Mohan };
4812ed2786SPuranjay Mohan MODULE_DEVICE_TABLE(i2c, adxl355_i2c_id);
4912ed2786SPuranjay Mohan 
5012ed2786SPuranjay Mohan static const struct of_device_id adxl355_of_match[] = {
51d3532d69SRamona Bolboaca 	{ .compatible = "adi,adxl355", .data = &adxl35x_chip_info[ADXL355] },
52d3532d69SRamona Bolboaca 	{ .compatible = "adi,adxl359", .data = &adxl35x_chip_info[ADXL359] },
5312ed2786SPuranjay Mohan 	{ }
5412ed2786SPuranjay Mohan };
5512ed2786SPuranjay Mohan MODULE_DEVICE_TABLE(of, adxl355_of_match);
5612ed2786SPuranjay Mohan 
5712ed2786SPuranjay Mohan static struct i2c_driver adxl355_i2c_driver = {
5812ed2786SPuranjay Mohan 	.driver = {
5912ed2786SPuranjay Mohan 		.name	= "adxl355_i2c",
6012ed2786SPuranjay Mohan 		.of_match_table = adxl355_of_match,
6112ed2786SPuranjay Mohan 	},
627cf15f42SUwe Kleine-König 	.probe		= adxl355_i2c_probe,
6312ed2786SPuranjay Mohan 	.id_table	= adxl355_i2c_id,
6412ed2786SPuranjay Mohan };
6512ed2786SPuranjay Mohan module_i2c_driver(adxl355_i2c_driver);
6612ed2786SPuranjay Mohan 
6712ed2786SPuranjay Mohan MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>");
6812ed2786SPuranjay Mohan MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer I2C driver");
6912ed2786SPuranjay Mohan MODULE_LICENSE("GPL v2");
70fe2fe330SJonathan Cameron MODULE_IMPORT_NS(IIO_ADXL355);
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