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30e3b4f256
Since commit30fdfb929e("PCI: Add a call to pci_assign_irq() in pci_device_probe()"), the PCI code will call the IRQ mapping function whenever a PCI driver is probed. If these are marked as __init, this causes an oops if a PCI driver is loaded or bound after the kernel has initialised. Fixes:30fdfb929e("PCI: Add a call to pci_assign_irq() in pci_device_probe()") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/arch/arm/mach-footbridge/netwinder-pci.c
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*
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* PCI bios-type initialisation for PCI machines
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*
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* Bits taken from various places.
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*/
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <asm/irq.h>
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#include <asm/mach/pci.h>
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#include <asm/mach-types.h>
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/*
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* We now use the slot ID instead of the device identifiers to select
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* which interrupt is routed where.
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*/
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static int netwinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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switch (slot) {
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case 0: /* host bridge */
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return 0;
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case 9: /* CyberPro */
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return IRQ_NETWINDER_VGA;
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case 10: /* DC21143 */
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return IRQ_NETWINDER_ETHER100;
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case 12: /* Winbond 553 */
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return IRQ_ISA_HARDDISK1;
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case 13: /* Winbond 89C940F */
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return IRQ_NETWINDER_ETHER10;
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default:
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printk(KERN_ERR "PCI: unknown device in slot %s\n",
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pci_name(dev));
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return 0;
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}
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}
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static struct hw_pci netwinder_pci __initdata = {
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.map_irq = netwinder_map_irq,
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.nr_controllers = 1,
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.ops = &dc21285_ops,
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.setup = dc21285_setup,
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.preinit = dc21285_preinit,
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.postinit = dc21285_postinit,
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};
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static int __init netwinder_pci_init(void)
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{
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if (machine_is_netwinder())
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pci_common_init(&netwinder_pci);
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return 0;
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}
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subsys_initcall(netwinder_pci_init);
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