drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
   4  *
   5  * Author: Vitor Soares <vitor.soares@synopsys.com>
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/module.h>
  10 #include <linux/i3c/device.h>
  11 #include <linux/i3c/master.h>
  12 #include <linux/slab.h>
  13 #include <linux/of.h>
  14 #include <linux/regmap.h>
  15
  16 #include "st_lsm6dsx.h"
  17
  18 static const struct i3c_device_id st_lsm6dsx_i3c_ids[] = {
  19         I3C_DEVICE(0x0104, 0x006C, (void *)ST_LSM6DSO_ID),
  20         I3C_DEVICE(0x0104, 0x006B, (void *)ST_LSM6DSR_ID),
  21         { /* sentinel */ },
  22 };
  23 MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids);
  24
  25 static int st_lsm6dsx_i3c_probe(struct i3c_device *i3cdev)
  26 {
  27         struct regmap_config st_lsm6dsx_i3c_regmap_config = {
  28                 .reg_bits = 8,
  29                 .val_bits = 8,
  30         };
  31         const struct i3c_device_id *id = i3c_device_match_id(i3cdev,
  32                                                             st_lsm6dsx_i3c_ids);
  33         struct regmap *regmap;
  34
  35         regmap = devm_regmap_init_i3c(i3cdev, &st_lsm6dsx_i3c_regmap_config);
  36         if (IS_ERR(regmap)) {
  37                 dev_err(&i3cdev->dev, "Failed to register i3c regmap %d\n",
  38                         (int)PTR_ERR(regmap));
  39                 return PTR_ERR(regmap);
  40         }
  41
  42         return st_lsm6dsx_probe(&i3cdev->dev, 0, (uintptr_t)id->data, regmap);
  43 }
  44
  45 static struct i3c_driver st_lsm6dsx_driver = {
  46         .driver = {
  47                 .name = "st_lsm6dsx_i3c",
  48                 .pm = &st_lsm6dsx_pm_ops,
  49         },
  50         .probe = st_lsm6dsx_i3c_probe,
  51         .id_table = st_lsm6dsx_i3c_ids,
  52 };
  53 module_i3c_driver(st_lsm6dsx_driver);
  54
  55 MODULE_AUTHOR("Vitor Soares <vitor.soares@synopsys.com>");
  56 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i3c driver");
  57 MODULE_LICENSE("GPL v2");