arch/arm/mach-mxs/devices/platform-mxs-i2c.c

   1 /*
   2  * Copyright (C) 2011 Pengutronix
   3  * Wolfram Sang <w.sang@pengutronix.de>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License version 2 as published by the
   7  * Free Software Foundation.
   8  */
   9 #include <asm/sizes.h>
  10 #include <mach/mx28.h>
  11 #include <mach/devices-common.h>
  12
  13 #define mxs_i2c_data_entry_single(soc, _id)                             \
  14         {                                                               \
  15                 .id = _id,                                              \
  16                 .iobase = soc ## _I2C ## _id ## _BASE_ADDR,             \
  17                 .errirq = soc ## _INT_I2C ## _id ## _ERROR,             \
  18                 .dmairq = soc ## _INT_I2C ## _id ## _DMA,               \
  19         }
  20
  21 #define mxs_i2c_data_entry(soc, _id)                                    \
  22         [_id] = mxs_i2c_data_entry_single(soc, _id)
  23
  24 #ifdef CONFIG_SOC_IMX28
  25 const struct mxs_mxs_i2c_data mx28_mxs_i2c_data[] __initconst = {
  26         mxs_i2c_data_entry(MX28, 0),
  27         mxs_i2c_data_entry(MX28, 1),
  28 };
  29 #endif
  30
  31 struct platform_device *__init mxs_add_mxs_i2c(
  32                 const struct mxs_mxs_i2c_data *data)
  33 {
  34         struct resource res[] = {
  35                 {
  36                         .start = data->iobase,
  37                         .end = data->iobase + SZ_8K - 1,
  38                         .flags = IORESOURCE_MEM,
  39                 }, {
  40                         .start = data->errirq,
  41                         .end = data->errirq,
  42                         .flags = IORESOURCE_IRQ,
  43                 }, {
  44                         .start = data->dmairq,
  45                         .end = data->dmairq,
  46                         .flags = IORESOURCE_IRQ,
  47                 },
  48         };
  49
  50         return mxs_add_platform_device("mxs-i2c", data->id, res,
  51                                         ARRAY_SIZE(res), NULL, 0);
  52 }