drivers/iio/accel/st_accel_spi.c

   1 /*
   2  * STMicroelectronics accelerometers driver
   3  *
   4  * Copyright 2012-2013 STMicroelectronics Inc.
   5  *
   6  * Denis Ciocca <denis.ciocca@st.com>
   7  *
   8  * Licensed under the GPL-2.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/module.h>
  13 #include <linux/slab.h>
  14 #include <linux/spi/spi.h>
  15 #include <linux/iio/iio.h>
  16
  17 #include <linux/iio/common/st_sensors.h>
  18 #include <linux/iio/common/st_sensors_spi.h>
  19 #include "st_accel.h"
  20
  21 static int st_accel_spi_probe(struct spi_device *spi)
  22 {
  23         struct iio_dev *indio_dev;
  24         struct st_sensor_data *adata;
  25         int err;
  26
  27         indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adata));
  28         if (!indio_dev)
  29                 return -ENOMEM;
  30
  31         adata = iio_priv(indio_dev);
  32
  33         st_sensors_spi_configure(indio_dev, spi, adata);
  34
  35         err = st_accel_common_probe(indio_dev);
  36         if (err < 0)
  37                 return err;
  38
  39         return 0;
  40 }
  41
  42 static int st_accel_spi_remove(struct spi_device *spi)
  43 {
  44         st_accel_common_remove(spi_get_drvdata(spi));
  45
  46         return 0;
  47 }
  48
  49 static const struct spi_device_id st_accel_id_table[] = {
  50         { LSM303DLH_ACCEL_DEV_NAME },
  51         { LSM303DLHC_ACCEL_DEV_NAME },
  52         { LIS3DH_ACCEL_DEV_NAME },
  53         { LSM330D_ACCEL_DEV_NAME },
  54         { LSM330DL_ACCEL_DEV_NAME },
  55         { LSM330DLC_ACCEL_DEV_NAME },
  56         { LIS331DLH_ACCEL_DEV_NAME },
  57         { LSM303DL_ACCEL_DEV_NAME },
  58         { LSM303DLM_ACCEL_DEV_NAME },
  59         { LSM330_ACCEL_DEV_NAME },
  60         { LSM303AGR_ACCEL_DEV_NAME },
  61         {},
  62 };
  63 MODULE_DEVICE_TABLE(spi, st_accel_id_table);
  64
  65 static struct spi_driver st_accel_driver = {
  66         .driver = {
  67                 .name = "st-accel-spi",
  68         },
  69         .probe = st_accel_spi_probe,
  70         .remove = st_accel_spi_remove,
  71         .id_table = st_accel_id_table,
  72 };
  73 module_spi_driver(st_accel_driver);
  74
  75 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
  76 MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver");
  77 MODULE_LICENSE("GPL v2");