[PATCH] clocksource: acpi_pm: add another greylist chipset

I have an acpi_pm that goes backwards, but it's not intel.  I tested the
verified read and my acpi_pm started to function properly.  So I added it
to the greylist.  I'm assuming that's the right spot.

I also added an unlikely() to the while, cause it seems appropriate.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Acked-by: John Stultz <johnstul@us.ibm.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 7ad3be8c0f49..7fcb77a9d011 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -54,8 +54,8 @@ static cycle_t acpi_pm_read_verified(void)
                 v1 = read_pmtmr();
                 v2 = read_pmtmr();
                 v3 = read_pmtmr();
-        } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
-                        || (v3 > v1 && v3 < v2));
+        } while (unlikely((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
+                          || (v3 > v1 && v3 < v2)));
 
         return (cycle_t)v2;
 }
@@ -138,6 +138,8 @@ static void __devinit acpi_pm_check_graylist(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
                         acpi_pm_check_graylist);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_LE,
+                        acpi_pm_check_graylist);
 #endif