diff options
Diffstat (limited to 'drivers/pci/pcie/pme/pcie_pme_acpi.c')
-rw-r--r-- | drivers/pci/pcie/pme/pcie_pme_acpi.c | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/drivers/pci/pcie/pme/pcie_pme_acpi.c b/drivers/pci/pcie/pme/pcie_pme_acpi.c deleted file mode 100644 index 83ab2287ae3f..000000000000 --- a/drivers/pci/pcie/pme/pcie_pme_acpi.c +++ /dev/null | |||
@@ -1,54 +0,0 @@ | |||
1 | /* | ||
2 | * PCIe Native PME support, ACPI-related part | ||
3 | * | ||
4 | * Copyright (C) 2009 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc. | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License V2. See the file "COPYING" in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | |||
11 | #include <linux/pci.h> | ||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/errno.h> | ||
14 | #include <linux/acpi.h> | ||
15 | #include <linux/pci-acpi.h> | ||
16 | #include <linux/pcieport_if.h> | ||
17 | |||
18 | /** | ||
19 | * pcie_pme_acpi_setup - Request the ACPI BIOS to release control over PCIe PME. | ||
20 | * @srv - PCIe PME service for a root port or event collector. | ||
21 | * | ||
22 | * Invoked when the PCIe bus type loads PCIe PME service driver. To avoid | ||
23 | * conflict with the BIOS PCIe support requires the BIOS to yield PCIe PME | ||
24 | * control to the kernel. | ||
25 | */ | ||
26 | int pcie_pme_acpi_setup(struct pcie_device *srv) | ||
27 | { | ||
28 | acpi_status status = AE_NOT_FOUND; | ||
29 | struct pci_dev *port = srv->port; | ||
30 | acpi_handle handle; | ||
31 | int error = 0; | ||
32 | |||
33 | if (acpi_pci_disabled) | ||
34 | return -ENOSYS; | ||
35 | |||
36 | dev_info(&port->dev, "Requesting control of PCIe PME from ACPI BIOS\n"); | ||
37 | |||
38 | handle = acpi_find_root_bridge_handle(port); | ||
39 | if (!handle) | ||
40 | return -EINVAL; | ||
41 | |||
42 | status = acpi_pci_osc_control_set(handle, | ||
43 | OSC_PCI_EXPRESS_PME_CONTROL | | ||
44 | OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); | ||
45 | if (ACPI_FAILURE(status)) { | ||
46 | dev_info(&port->dev, | ||
47 | "Failed to receive control of PCIe PME service: %s\n", | ||
48 | (status == AE_SUPPORT || status == AE_NOT_FOUND) ? | ||
49 | "no _OSC support" : "ACPI _OSC failed"); | ||
50 | error = -ENODEV; | ||
51 | } | ||
52 | |||
53 | return error; | ||
54 | } | ||