kernel/arch/x86/platform/intel-mid/device_libs/platform_lis331.c

   1 /*
   2  * platform_lis331.c:  lis331 platform data initilization file
   3  *
   4  * (C) Copyright 2013 Intel Corporation
   5  * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; version 2
  10  * of the License.
  11  */
  12
  13 #include <linux/i2c.h>
  14 #include <linux/gpio.h>
  15 #include <asm/intel-mid.h>
  16
  17 static void __init *lis331dl_platform_data(void *info)
  18 {
  19         static short intr2nd_pdata;
  20         struct i2c_board_info *i2c_info = info;
  21         int intr = get_gpio_by_name("accel_int");
  22         int intr2nd = get_gpio_by_name("accel_2");
  23
  24         if (intr < 0)
  25                 return NULL;
  26         if (intr2nd < 0)
  27                 return NULL;
  28
  29         i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
  30         intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
  31
  32         return &intr2nd_pdata;
  33 }
  34
  35 static const struct devs_id lis331dl_dev_id __initconst = {
  36         .name = "i2c_accel",
  37         .type = SFI_DEV_TYPE_I2C,
  38         .get_platform_data = &lis331dl_platform_data,
  39 };
  40
  41 sfi_device(lis331dl_dev_id);