LXR linux/arch/mips/pci/fixup-lantiq.c

   1/*
   2 *  This program is free software; you can redistribute it and/or modify it
   3 *  under the terms of the GNU General Public License version 2 as published
   4 *  by the Free Software Foundation.
   5 *
   6 *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
   7 */
   8
   9#include <linux/of_irq.h>
  10#include <linux/of_pci.h>
  11
  12int (*ltq_pci_plat_arch_init)(struct pci_dev *dev) = NULL;
  13int (*ltq_pci_plat_dev_init)(struct pci_dev *dev) = NULL;
  14
  15int pcibios_plat_dev_init(struct pci_dev *dev)
  16{
  17        if (ltq_pci_plat_arch_init)
  18                return ltq_pci_plat_arch_init(dev);
  19
  20        if (ltq_pci_plat_dev_init)
  21                return ltq_pci_plat_dev_init(dev);
  22
  23        return 0;
  24}
  25
  26int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  27{
  28        struct of_irq dev_irq;
  29        int irq;
  30
  31        if (of_irq_map_pci(dev, &dev_irq)) {
  32                dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n",
  33                        slot, pin);
  34                return 0;
  35        }
  36        irq = irq_create_of_mapping(dev_irq.controller, dev_irq.specifier,
  37                                        dev_irq.size);
  38        dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq);
  39        return irq;
  40}
  41