mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
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
|
|
/*
|
|
* linux/arch/arm/mach-footbridge/netwinder-pci.c
|
|
*
|
|
* PCI bios-type initialisation for PCI machines
|
|
*
|
|
* Bits taken from various places.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/mach/pci.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
/*
|
|
* We now use the slot ID instead of the device identifiers to select
|
|
* which interrupt is routed where.
|
|
*/
|
|
static int netwinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
switch (slot) {
|
|
case 0: /* host bridge */
|
|
return 0;
|
|
|
|
case 9: /* CyberPro */
|
|
return IRQ_NETWINDER_VGA;
|
|
|
|
case 10: /* DC21143 */
|
|
return IRQ_NETWINDER_ETHER100;
|
|
|
|
case 12: /* Winbond 553 */
|
|
return IRQ_ISA_HARDDISK1;
|
|
|
|
case 13: /* Winbond 89C940F */
|
|
return IRQ_NETWINDER_ETHER10;
|
|
|
|
default:
|
|
printk(KERN_ERR "PCI: unknown device in slot %s\n",
|
|
pci_name(dev));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static struct hw_pci netwinder_pci __initdata = {
|
|
.map_irq = netwinder_map_irq,
|
|
.nr_controllers = 1,
|
|
.ops = &dc21285_ops,
|
|
.setup = dc21285_setup,
|
|
.preinit = dc21285_preinit,
|
|
.postinit = dc21285_postinit,
|
|
};
|
|
|
|
static int __init netwinder_pci_init(void)
|
|
{
|
|
if (machine_is_netwinder())
|
|
pci_common_init(&netwinder_pci);
|
|
return 0;
|
|
}
|
|
|
|
subsys_initcall(netwinder_pci_init);
|