arch/arm/plat-mxc/irq-common.c

   1 /*
   2  * Copyright (C) BitBox Ltd 2010
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  16  * MA  02110-1301, USA.
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/irq.h>
  21
  22 #include "irq-common.h"
  23
  24 int imx_irq_set_priority(unsigned char irq, unsigned char prio)
  25 {
  26         struct mxc_irq_chip *chip;
  27         struct irq_chip *base;
  28         int ret;
  29
  30         ret = -ENOSYS;
  31
  32         base = irq_get_chip(irq);
  33         if (base) {
  34                 chip = container_of(base, struct mxc_irq_chip, base);
  35                 if (chip->set_priority)
  36                         ret = chip->set_priority(irq, prio);
  37         }
  38
  39         return ret;
  40 }
  41 EXPORT_SYMBOL(imx_irq_set_priority);
  42
  43 int mxc_set_irq_fiq(unsigned int irq, unsigned int type)
  44 {
  45         struct irq_chip_generic *gc;
  46         int (*set_irq_fiq)(unsigned int, unsigned int);
  47         int ret;
  48
  49         ret = -ENOSYS;
  50
  51         gc = irq_get_chip_data(irq);
  52         if (gc && gc->private) {
  53                 set_irq_fiq = gc->private;
  54                 ret = set_irq_fiq(irq, type);
  55         }
  56
  57         return ret;
  58 }
  59 EXPORT_SYMBOL(mxc_set_irq_fiq);