LXR linux/include/linux/irqchip.h

   1/*
   2 * Copyright (C) 2012 Thomas Petazzoni
   3 *
   4 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   5 *
   6 * This file is licensed under the terms of the GNU General Public
   7 * License version 2.  This program is licensed "as is" without any
   8 * warranty of any kind, whether express or implied.
   9 */
  10
  11#ifndef _LINUX_IRQCHIP_H
  12#define _LINUX_IRQCHIP_H
  13
  14#include <linux/acpi.h>
  15#include <linux/of.h>
  16
  17/*
  18 * This macro must be used by the different irqchip drivers to declare
  19 * the association between their DT compatible string and their
  20 * initialization function.
  21 *
  22 * @name: name that must be unique across all IRQCHIP_DECLARE of the
  23 * same file.
  24 * @compstr: compatible string of the irqchip driver
  25 * @fn: initialization function
  26 */
  27#define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn)
  28
  29/*
  30 * This macro must be used by the different irqchip drivers to declare
  31 * the association between their version and their initialization function.
  32 *
  33 * @name: name that must be unique across all IRQCHIP_ACPI_DECLARE of the
  34 * same file.
  35 * @subtable: Subtable to be identified in MADT
  36 * @validate: Function to be called on that subtable to check its validity.
  37 *            Can be NULL.
  38 * @data: data to be checked by the validate function.
  39 * @fn: initialization function
  40 */
  41#define IRQCHIP_ACPI_DECLARE(name, subtable, validate, data, fn)        \
  42        ACPI_DECLARE_PROBE_ENTRY(irqchip, name, ACPI_SIG_MADT,          \
  43                                 subtable, validate, data, fn)
  44
  45#ifdef CONFIG_IRQCHIP
  46void irqchip_init(void);
  47#else
  48static inline void irqchip_init(void) {}
  49#endif
  50
  51#endif
  52