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

   1 /* linux/arch/arm/plat-samsung/dev-pwm.c
   2  *
   3  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * Copyright (c) 2007 Ben Dooks
   7  * Copyright (c) 2008 Simtec Electronics
   8  *      Ben Dooks <ben@simtec.co.uk>, <ben-linux@fluff.org>
   9  *
  10  * S3C series device definition for the PWM timer
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/export.h>
  20
  21 #include <mach/irqs.h>
  22
  23 #include <plat/devs.h>
  24
  25 #define TIMER_RESOURCE_SIZE (1)
  26
  27 #define TIMER_RESOURCE(_tmr, _irq)                      \
  28         (struct resource [TIMER_RESOURCE_SIZE]) {       \
  29                 [0] = {                                 \
  30                         .start  = _irq,                 \
  31                         .end    = _irq,                 \
  32                         .flags  = IORESOURCE_IRQ        \
  33                 }                                       \
  34         }
  35
  36 #define DEFINE_S3C_TIMER(_tmr_no, _irq)                 \
  37         .name           = "s3c24xx-pwm",                \
  38         .id             = _tmr_no,                      \
  39         .num_resources  = TIMER_RESOURCE_SIZE,          \
  40         .resource       = TIMER_RESOURCE(_tmr_no, _irq),        \
  41
  42 /*
  43  * since we already have an static mapping for the timer,
  44  * we do not bother setting any IO resource for the base.
  45  */
  46
  47 struct platform_device s3c_device_timer[] = {
  48         [0] = { DEFINE_S3C_TIMER(0, IRQ_TIMER0) },
  49         [1] = { DEFINE_S3C_TIMER(1, IRQ_TIMER1) },
  50         [2] = { DEFINE_S3C_TIMER(2, IRQ_TIMER2) },
  51         [3] = { DEFINE_S3C_TIMER(3, IRQ_TIMER3) },
  52         [4] = { DEFINE_S3C_TIMER(4, IRQ_TIMER4) },
  53 };
  54 EXPORT_SYMBOL(s3c_device_timer);