LXR linux/drivers/misc/bmp085-spi.c

   1/*
   2 * Copyright (c) 2012  Bosch Sensortec GmbH
   3 * Copyright (c) 2012  Unixphere AB
   4 *
   5 * This program is free software; you can redistribute it and/or modify
   6 * it under the terms of the GNU General Public License as published by
   7 * the Free Software Foundation; either version 2 of the License, or
   8 * (at your option) any later version.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 *
  15 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20#include <linux/module.h>
  21#include <linux/spi/spi.h>
  22#include <linux/err.h>
  23#include "bmp085.h"
  24
  25static int bmp085_spi_probe(struct spi_device *client)
  26{
  27        int err;
  28        struct regmap *regmap;
  29
  30        client->bits_per_word = 8;
  31        err = spi_setup(client);
  32        if (err < 0) {
  33                dev_err(&client->dev, "spi_setup failed!\n");
  34                return err;
  35        }
  36
  37        regmap = devm_regmap_init_spi(client, &bmp085_regmap_config);
  38        if (IS_ERR(regmap)) {
  39                err = PTR_ERR(regmap);
  40                dev_err(&client->dev, "Failed to init regmap: %d\n", err);
  41                return err;
  42        }
  43
  44        return bmp085_probe(&client->dev, regmap, client->irq);
  45}
  46
  47static int bmp085_spi_remove(struct spi_device *client)
  48{
  49        return bmp085_remove(&client->dev);
  50}
  51
  52static const struct of_device_id bmp085_of_match[] = {
  53        { .compatible = "bosch,bmp085", },
  54        { },
  55};
  56MODULE_DEVICE_TABLE(of, bmp085_of_match);
  57
  58static const struct spi_device_id bmp085_id[] = {
  59        { "bmp180", 0 },
  60        { "bmp181", 0 },
  61        { }
  62};
  63MODULE_DEVICE_TABLE(spi, bmp085_id);
  64
  65static struct spi_driver bmp085_spi_driver = {
  66        .driver = {
  67                .owner  = THIS_MODULE,
  68                .name   = BMP085_NAME,
  69                .of_match_table = bmp085_of_match
  70        },
  71        .id_table       = bmp085_id,
  72        .probe          = bmp085_spi_probe,
  73        .remove         = bmp085_spi_remove
  74};
  75
  76module_spi_driver(bmp085_spi_driver);
  77
  78MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>");
  79MODULE_DESCRIPTION("BMP085 SPI bus driver");
  80MODULE_LICENSE("GPL");
  81