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Add a hack to get around PCI link devices that report "present" but not

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"functional" (i.e., if they are disabled).  We should probe them anyway
since we may enable them later.

Tested by:	thompsa
MFC after:	3 days
This commit is contained in:
Nate Lawson 2005-10-23 00:28:39 +00:00
parent 71a5cd7f7d
commit 893f750a5c
1 changed files with 6 additions and 1 deletions
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7
sys/dev/acpica/acpi.c
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@ -1571,8 +1571,13 @@ acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status)
* Check that the device is present. If it's not present,
* leave it disabled (so that we have a device_t attached to
* the handle, but we don't probe it).
*
* XXX PCI link devices sometimes report "present" but not
* "functional" (i.e. if disabled). Go ahead and probe them
* anyway since we may enable them later.
*/
if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child)) {
if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child) &&
!acpi_MatchHid(handle, "PNP0C0F")) {
device_disable(child);
break;
}