drivers/iio/accel/adxl380_spi.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * ADXL380 3-Axis Digital Accelerometer SPI driver
   4  *
   5  * Copyright 2024 Analog Devices Inc.
   6  */
   7
   8 #include <linux/mod_devicetable.h>
   9 #include <linux/module.h>
  10 #include <linux/regmap.h>
  11 #include <linux/spi/spi.h>
  12
  13 #include "adxl380.h"
  14
  15 static const struct regmap_config adxl380_spi_regmap_config = {
  16         .reg_bits = 7,
  17         .pad_bits = 1,
  18         .val_bits = 8,
  19         .read_flag_mask = BIT(0),
  20         .readable_noinc_reg = adxl380_readable_noinc_reg,
  21 };
  22
  23 static int adxl380_spi_probe(struct spi_device *spi)
  24 {
  25         const struct adxl380_chip_info *chip_data;
  26         struct regmap *regmap;
  27
  28         chip_data = spi_get_device_match_data(spi);
  29
  30         regmap = devm_regmap_init_spi(spi, &adxl380_spi_regmap_config);
  31         if (IS_ERR(regmap))
  32                 return PTR_ERR(regmap);
  33
  34         return adxl380_probe(&spi->dev, regmap, chip_data);
  35 }
  36
  37 static const struct spi_device_id adxl380_spi_id[] = {
  38         { "adxl380", (kernel_ulong_t)&adxl380_chip_info },
  39         { "adxl382", (kernel_ulong_t)&adxl382_chip_info },
  40         { }
  41 };
  42 MODULE_DEVICE_TABLE(spi, adxl380_spi_id);
  43
  44 static const struct of_device_id adxl380_of_match[] = {
  45         { .compatible = "adi,adxl380", .data = &adxl380_chip_info },
  46         { .compatible = "adi,adxl382", .data = &adxl382_chip_info },
  47         { }
  48 };
  49 MODULE_DEVICE_TABLE(of, adxl380_of_match);
  50
  51 static struct spi_driver adxl380_spi_driver = {
  52         .driver = {
  53                 .name = "adxl380_spi",
  54                 .of_match_table = adxl380_of_match,
  55         },
  56         .probe = adxl380_spi_probe,
  57         .id_table = adxl380_spi_id,
  58 };
  59
  60 module_spi_driver(adxl380_spi_driver);
  61
  62 MODULE_AUTHOR("Ramona Gradinariu <ramona.gradinariu@analog.com>");
  63 MODULE_AUTHOR("Antoniu Miclaus <antoniu.miclaus@analog.com>");
  64 MODULE_DESCRIPTION("Analog Devices ADXL380 3-axis accelerometer SPI driver");
  65 MODULE_LICENSE("GPL");
  66 MODULE_IMPORT_NS(IIO_ADXL380);