| 1 | // SPDX-License-Identifier: GPL-2.0-only |
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| 2 | /* |
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| 3 | * ADXL345 3-Axis Digital Accelerometer I2C driver |
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| 4 | * |
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| 5 | * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com> |
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| 6 | * |
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| 7 | * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or |
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| 8 | * 0x53 (ALT ADDRESS pin grounded) |
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| 9 | */ |
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| 10 | |
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| 11 | #include <linux/i2c.h> |
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| 12 | #include <linux/module.h> |
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| 13 | #include <linux/regmap.h> |
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| 14 | |
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| 15 | #include "adxl345.h" |
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| 16 | |
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| 17 | static const struct regmap_config adxl345_i2c_regmap_config = { |
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| 18 | .reg_bits = 8, |
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| 19 | .val_bits = 8, |
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| 20 | }; |
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| 21 | |
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| 22 | static int adxl345_i2c_probe(struct i2c_client *client) |
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| 23 | { |
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| 24 | struct regmap *regmap; |
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| 25 | |
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| 26 | regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config); |
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| 27 | if (IS_ERR(ptr: regmap)) |
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| 28 | return dev_err_probe(dev: &client->dev, err: PTR_ERR(ptr: regmap), fmt: "Error initializing regmap\n" ); |
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| 29 | |
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| 30 | return adxl345_core_probe(dev: &client->dev, regmap); |
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| 31 | } |
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| 32 | |
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| 33 | static const struct adxl345_chip_info adxl345_i2c_info = { |
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| 34 | .name = "adxl345" , |
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| 35 | .uscale = ADXL345_USCALE, |
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| 36 | }; |
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| 37 | |
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| 38 | static const struct adxl345_chip_info adxl375_i2c_info = { |
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| 39 | .name = "adxl375" , |
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| 40 | .uscale = ADXL375_USCALE, |
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| 41 | }; |
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| 42 | |
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| 43 | static const struct i2c_device_id adxl345_i2c_id[] = { |
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| 44 | { "adxl345" , (kernel_ulong_t)&adxl345_i2c_info }, |
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| 45 | { "adxl375" , (kernel_ulong_t)&adxl375_i2c_info }, |
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| 46 | { } |
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| 47 | }; |
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| 48 | MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id); |
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| 49 | |
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| 50 | static const struct of_device_id adxl345_of_match[] = { |
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| 51 | { .compatible = "adi,adxl345" , .data = &adxl345_i2c_info }, |
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| 52 | { .compatible = "adi,adxl375" , .data = &adxl375_i2c_info }, |
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| 53 | { } |
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| 54 | }; |
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| 55 | MODULE_DEVICE_TABLE(of, adxl345_of_match); |
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| 56 | |
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| 57 | static const struct acpi_device_id adxl345_acpi_match[] = { |
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| 58 | { "ADS0345" , (kernel_ulong_t)&adxl345_i2c_info }, |
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| 59 | { } |
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| 60 | }; |
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| 61 | MODULE_DEVICE_TABLE(acpi, adxl345_acpi_match); |
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| 62 | |
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| 63 | static struct i2c_driver adxl345_i2c_driver = { |
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| 64 | .driver = { |
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| 65 | .name = "adxl345_i2c" , |
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| 66 | .of_match_table = adxl345_of_match, |
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| 67 | .acpi_match_table = adxl345_acpi_match, |
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| 68 | }, |
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| 69 | .probe = adxl345_i2c_probe, |
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| 70 | .id_table = adxl345_i2c_id, |
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| 71 | }; |
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| 72 | module_i2c_driver(adxl345_i2c_driver); |
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| 73 | |
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| 74 | MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>" ); |
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| 75 | MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver" ); |
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| 76 | MODULE_LICENSE("GPL v2" ); |
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| 77 | MODULE_IMPORT_NS(IIO_ADXL345); |
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| 78 | |
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