arch/arm/mach-ux500/devices-common.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
   5  * License terms: GNU General Public License (GPL), version 2.
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/dma-mapping.h>
  10 #include <linux/err.h>
  11 #include <linux/irq.h>
  12 #include <linux/slab.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/platform_data/pinctrl-nomadik.h>
  15
  16 #include <mach/hardware.h>
  17 #include <mach/irqs.h>
  18
  19 #include "devices-common.h"
  20
  21 static struct platform_device *
  22 dbx500_add_gpio(struct device *parent, int id, resource_size_t addr, int irq,
  23                 struct nmk_gpio_platform_data *pdata)
  24 {
  25         struct resource resources[] = {
  26                 {
  27                         .start  = addr,
  28                         .end    = addr + 127,
  29                         .flags  = IORESOURCE_MEM,
  30                 },
  31                 {
  32                         .start  = irq,
  33                         .end    = irq,
  34                         .flags  = IORESOURCE_IRQ,
  35                 }
  36         };
  37
  38         return platform_device_register_resndata(
  39                 parent,
  40                 "gpio",
  41                 id,
  42                 resources,
  43                 ARRAY_SIZE(resources),
  44                 pdata,
  45                 sizeof(*pdata));
  46 }
  47
  48 void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
  49                       int irq, struct nmk_gpio_platform_data *pdata)
  50 {
  51         int first = 0;
  52         int i;
  53
  54         for (i = 0; i < num; i++, first += 32, irq++) {
  55                 pdata->first_gpio = first;
  56                 pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
  57                 pdata->num_gpio = 32;
  58
  59                 dbx500_add_gpio(parent, i, base[i], irq, pdata);
  60         }
  61 }