PCI: unhide the SMBus on the Compaq Deskpro EN

This patch unhides the SMBus on Compaq Deskpro EN
SFF P667 with the Intel 815E chipset. Unhiding it reveals
a THMC51 hardware monitoring chip.

Jean Delvare has checked that this machine has no ACPI
magic touching the SMBus nor the hardware monitoring chip,
so this should be safe.

The patch was tested on Fedora Core 9 with 2.6.25.4 kernel.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Tested-by: Rafał Haładuda <rh1985@wp.pl>
CC: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 93faf84e4ec47c81fb10a2b6389f324c9e08c50e..92b52ebd0eb635c67d94a8ad21539f25762430d9 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1060,6 +1060,14 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
                        case 0x00b9: /* Compaq Evo D510 SFF */
                                asus_hides_smbus = 1;
                        }
+               else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC)
+                       switch (dev->subsystem_device) {
+                       case 0x001A: /* Compaq Deskpro EN SSF P667 815E */
+                               /* Motherboard doesn't have host bridge
+                                * subvendor/subdevice IDs, therefore checking
+                                * its on-board VGA controller */
+                               asus_hides_smbus = 1;
+                       }
        }
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82845_HB,   asus_hides_smbus_hostbridge);
@@ -1075,6 +1083,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,     PCI_DEVICE_ID_INTEL_82915GM_HB, as
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82810_IG3,  asus_hides_smbus_hostbridge);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82845G_IG,  asus_hides_smbus_hostbridge);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,  PCI_DEVICE_ID_INTEL_82815_CGC,  asus_hides_smbus_hostbridge);
 
 static void asus_hides_smbus_lpc(struct pci_dev *dev)
 {