diff options
Diffstat (limited to 'drivers/pnp/pnpacpi/core.c')
| -rw-r--r-- | drivers/pnp/pnpacpi/core.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 816479ad217b..f104577f73e0 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -27,12 +27,15 @@ static int num = 0; +/* We need only to blacklist devices that have already an acpi driver that + * can't use pnp layer. We don't need to blacklist device that are directly + * used by the kernel (PCI root, ...), as it is harmless and there were + * already present in pnpbios. But there is an exception for devices that + * have irqs (PIC, Timer) because we call acpi_register_gsi. + * Finaly only devices that have a CRS method need to be in this list. + */ static char __initdata excluded_id_list[] = - "PNP0C0A," /* Battery */ - "PNP0C0C,PNP0C0E,PNP0C0D," /* Button */ "PNP0C09," /* EC */ - "PNP0C0B," /* Fan */ - "PNP0A03," /* PCI root */ "PNP0C0F," /* Link device */ "PNP0000," /* PIC */ "PNP0100," /* Timer */ @@ -131,7 +134,8 @@ static int __init pnpacpi_add_device(struct acpi_device *device) struct pnp_id *dev_id; struct pnp_dev *dev; - if (!ispnpidacpi(acpi_device_hid(device)) || + status = acpi_get_handle(device->handle, "_CRS", &temp); + if (ACPI_FAILURE(status) || !ispnpidacpi(acpi_device_hid(device)) || is_exclusive_device(device)) return 0; |