PCI: unhide SMBus on Compaq Deskpro EP 401963-001 motherboard

PCI quirk to unhide SMBus on Compaq Deskpro EP 401963-001 (PCA# 010174) motherboard.

Signed-off-by: Greg White <gw.kernel@tnode.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 14 insertions, 2 deletions

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 2d40f437b9fc..7dcaa09b3c20 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -972,8 +972,8 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_ho
  *
  * The SMBus PCI Device can be activated by setting a bit in the ICH LPC 
  * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it 
- * becomes necessary to do this tweak in two steps -- I've chosen the Host
- * bridge as trigger.
+ * becomes necessary to do this tweak in two steps -- the chosen trigger
+ * is either the Host bridge (preferred) or on-board VGA controller.
  *
  * Note that we used to unhide the SMBus that way on Toshiba laptops
  * (Satellite A40 and Tecra M2) but then found that the thermal management
@@ -1070,6 +1070,14 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
                         case 0x0058: /* Compaq Evo N620c */
                                 asus_hides_smbus = 1;
                         }
+                else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3)
+                        switch(dev->subsystem_device) {
+                        case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */
+                                /* 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 );
@@ -1082,6 +1090,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82855PM_HB,	as
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge );
 
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82810_IG3,  asus_hides_smbus_hostbridge );
+
 static void asus_hides_smbus_lpc(struct pci_dev *dev)
 {
         u16 val;
@@ -1099,12 +1109,14 @@ static void asus_hides_smbus_lpc(struct pci_dev *dev)
                         printk(KERN_INFO "PCI: Enabled i801 SMBus device\n");
         }
 }
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801AA_0,  asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801DB_0,  asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801BA_0,  asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801CA_0,  asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801EB_0,  asus_hides_smbus_lpc );
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801AA_0,  asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801DB_0,  asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801BA_0,  asus_hides_smbus_lpc );
 DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_82801CA_0,  asus_hides_smbus_lpc );