arch/arm/plat-samsung/dev-ts.c

   1 /* linux/arch/arm/mach-s3c64xx/dev-ts.c
   2  *
   3  * Copyright (c) 2008 Simtec Electronics
   4  *      http://armlinux.simtec.co.uk/
   5  *      Ben Dooks <ben@simtec.co.uk>, <ben-linux@fluff.org>
   6  *
   7  * Adapted by Maurus Cuelenaere for s3c64xx
   8  *
   9  * S3C64XX series device definition for touchscreen device
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14 */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/string.h>
  18 #include <linux/platform_device.h>
  19
  20 #include <mach/irqs.h>
  21 #include <mach/map.h>
  22
  23 #include <plat/devs.h>
  24 #include <plat/ts.h>
  25
  26 static struct resource s3c_ts_resource[] = {
  27         [0] = {
  28                 .start = SAMSUNG_PA_ADC,
  29                 .end   = SAMSUNG_PA_ADC + SZ_256 - 1,
  30                 .flags = IORESOURCE_MEM,
  31         },
  32         [1] = {
  33                 .start = IRQ_TC,
  34                 .end   = IRQ_TC,
  35                 .flags = IORESOURCE_IRQ,
  36         },
  37 };
  38
  39 struct platform_device s3c_device_ts = {
  40         .name           = "s3c64xx-ts",
  41         .id             = -1,
  42         .num_resources  = ARRAY_SIZE(s3c_ts_resource),
  43         .resource       = s3c_ts_resource,
  44 };
  45
  46 static struct s3c2410_ts_mach_info default_ts_data __initdata = {
  47         .delay                  = 10000,
  48         .presc                  = 49,
  49         .oversampling_shift     = 2,
  50 };
  51
  52 void __init s3c24xx_ts_set_platdata(struct s3c2410_ts_mach_info *pd)
  53 {
  54         if (!pd)
  55                 pd = &default_ts_data;
  56
  57         s3c_set_platdata(pd, sizeof(struct s3c2410_ts_mach_info),
  58                          &s3c_device_ts);
  59 }