drivers/iio/accel/kxsd9-spi.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 #include <linux/device.h>
   3 #include <linux/kernel.h>
   4 #include <linux/of.h>
   5 #include <linux/of_device.h>
   6 #include <linux/spi/spi.h>
   7 #include <linux/module.h>
   8 #include <linux/slab.h>
   9 #include <linux/regmap.h>
  10
  11 #include "kxsd9.h"
  12
  13 static int kxsd9_spi_probe(struct spi_device *spi)
  14 {
  15         static const struct regmap_config config = {
  16                 .reg_bits = 8,
  17                 .val_bits = 8,
  18                 .max_register = 0x0e,
  19         };
  20         struct regmap *regmap;
  21
  22         spi->mode = SPI_MODE_0;
  23         regmap = devm_regmap_init_spi(spi, &config);
  24         if (IS_ERR(regmap)) {
  25                 dev_err(&spi->dev, "%s: regmap allocation failed: %ld\n",
  26                         __func__, PTR_ERR(regmap));
  27                 return PTR_ERR(regmap);
  28         }
  29
  30         return kxsd9_common_probe(&spi->dev,
  31                                   regmap,
  32                                   spi_get_device_id(spi)->name);
  33 }
  34
  35 static int kxsd9_spi_remove(struct spi_device *spi)
  36 {
  37         kxsd9_common_remove(&spi->dev);
  38
  39         return 0;
  40 }
  41
  42 static const struct spi_device_id kxsd9_spi_id[] = {
  43         {"kxsd9", 0},
  44         { },
  45 };
  46 MODULE_DEVICE_TABLE(spi, kxsd9_spi_id);
  47
  48 static const struct of_device_id kxsd9_of_match[] = {
  49         { .compatible = "kionix,kxsd9" },
  50         { },
  51 };
  52 MODULE_DEVICE_TABLE(of, kxsd9_of_match);
  53
  54 static struct spi_driver kxsd9_spi_driver = {
  55         .driver = {
  56                 .name = "kxsd9",
  57                 .pm = &kxsd9_dev_pm_ops,
  58                 .of_match_table = kxsd9_of_match,
  59         },
  60         .probe = kxsd9_spi_probe,
  61         .remove = kxsd9_spi_remove,
  62         .id_table = kxsd9_spi_id,
  63 };
  64 module_spi_driver(kxsd9_spi_driver);
  65
  66 MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");
  67 MODULE_DESCRIPTION("Kionix KXSD9 SPI driver");
  68 MODULE_LICENSE("GPL v2");