drivers/iio/chemical/ens160_spi.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * ScioSense ENS160 multi-gas sensor SPI driver
   4  *
   5  * Copyright (c) 2024 Gustavo Silva <gustavograzs@gmail.com>
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/regmap.h>
  10 #include <linux/spi/spi.h>
  11
  12 #include "ens160.h"
  13
  14 #define ENS160_SPI_READ BIT(0)
  15
  16 static const struct regmap_config ens160_regmap_spi_conf = {
  17         .reg_bits = 8,
  18         .val_bits = 8,
  19         .reg_shift = -1,
  20         .read_flag_mask = ENS160_SPI_READ,
  21 };
  22
  23 static int ens160_spi_probe(struct spi_device *spi)
  24 {
  25         struct regmap *regmap;
  26
  27         regmap = devm_regmap_init_spi(spi, &ens160_regmap_spi_conf);
  28         if (IS_ERR(regmap))
  29                 return dev_err_probe(&spi->dev, PTR_ERR(regmap),
  30                                      "Failed to register spi regmap\n");
  31
  32         return devm_ens160_core_probe(&spi->dev, regmap, spi->irq, "ens160");
  33 }
  34
  35 static const struct of_device_id ens160_spi_of_match[] = {
  36         { .compatible = "sciosense,ens160" },
  37         { }
  38 };
  39 MODULE_DEVICE_TABLE(of, ens160_spi_of_match);
  40
  41 static const struct spi_device_id ens160_spi_id[] = {
  42         { "ens160" },
  43         { }
  44 };
  45 MODULE_DEVICE_TABLE(spi, ens160_spi_id);
  46
  47 static struct spi_driver ens160_spi_driver = {
  48         .driver = {
  49                 .name   = "ens160",
  50                 .of_match_table = ens160_spi_of_match,
  51                 .pm = pm_sleep_ptr(&ens160_pm_ops),
  52         },
  53         .probe          = ens160_spi_probe,
  54         .id_table       = ens160_spi_id,
  55 };
  56 module_spi_driver(ens160_spi_driver);
  57
  58 MODULE_AUTHOR("Gustavo Silva <gustavograzs@gmail.com>");
  59 MODULE_DESCRIPTION("ScioSense ENS160 SPI driver");
  60 MODULE_LICENSE("GPL v2");
  61 MODULE_IMPORT_NS(IIO_ENS160);