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

   1 /*
   2  * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it under
   5  * the terms of the GNU General Public License version 2 as published by the
   6  * Free Software Foundation.
   7  */
   8 #include <linux/compiler.h>
   9 #include <linux/err.h>
  10 #include <linux/init.h>
  11
  12 #include <mach/mx23.h>
  13 #include <mach/mx28.h>
  14 #include <mach/devices-common.h>
  15
  16 struct platform_device *__init mxs_add_gpio(
  17         int id, resource_size_t iobase, int irq)
  18 {
  19         struct resource res[] = {
  20                 {
  21                         .start = iobase,
  22                         .end = iobase + SZ_8K - 1,
  23                         .flags = IORESOURCE_MEM,
  24                 }, {
  25                         .start = irq,
  26                         .end = irq,
  27                         .flags = IORESOURCE_IRQ,
  28                 },
  29         };
  30
  31         return platform_device_register_resndata(&mxs_apbh_bus,
  32                         "gpio-mxs", id, res, ARRAY_SIZE(res), NULL, 0);
  33 }
  34
  35 static int __init mxs_add_mxs_gpio(void)
  36 {
  37         if (cpu_is_mx23()) {
  38                 mxs_add_gpio(0, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO0);
  39                 mxs_add_gpio(1, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO1);
  40                 mxs_add_gpio(2, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO2);
  41         }
  42
  43         if (cpu_is_mx28()) {
  44                 mxs_add_gpio(0, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO0);
  45                 mxs_add_gpio(1, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO1);
  46                 mxs_add_gpio(2, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO2);
  47                 mxs_add_gpio(3, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO3);
  48                 mxs_add_gpio(4, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO4);
  49         }
  50
  51         return 0;
  52 }
  53 postcore_initcall(mxs_add_mxs_gpio);