pci: revert SMBus unhide on HP Compaq nx6110

[sfrench/cifs-2.6.git] / drivers / pci / quirks.c

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index e9a333d985526c5a5af22c1e6cc79c3e2dccad10..e887aa45c9cdd4ad41863f199f9f26f4551659a4 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -951,6 +951,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,      PCI_DEVICE_ID_INTEL_82375,      quirk_e
  * accesses to the SMBus registers, with potentially bad effects. Thus you
  * should be very careful when adding new entries: if SMM is accessing the
  * Intel SMBus, this is a very good reason to leave it hidden.
+ *
+ * Likewise, many recent laptops use ACPI for thermal management. If the
+ * ACPI DSDT code accesses the SMBus, then Linux should not access it
+ * natively, and keeping the SMBus hidden is the right thing to do. If you
+ * are about to add an entry in the table below, please first disassemble
+ * the DSDT and double-check that there is no code accessing the SMBus.
  */
 static int asus_hides_smbus;
 
@@ -1028,11 +1034,6 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
                        case 0x12bf: /* HP xw4100 */
                                asus_hides_smbus = 1;
                        }
-               else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB)
-                       switch (dev->subsystem_device) {
-                       case 0x099c: /* HP Compaq nx6110 */
-                               asus_hides_smbus = 1;
-                       }
        } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) {
                if (dev->device ==  PCI_DEVICE_ID_INTEL_82855PM_HB)
                        switch(dev->subsystem_device) {