1 files changed, 13 insertions, 0 deletions

diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 18093d7498f0..12e9feaa2f7a 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -491,6 +491,19 @@ void force_hpet_resume(void)
                 break;
         }
 }
+
+/*
+ * HPET MSI on some boards (ATI SB700/SB800) has side effect on
+ * floppy DMA. Disable HPET MSI on such platforms.
+ */
+static void force_disable_hpet_msi(struct pci_dev *unused)
+{
+        hpet_msi_disable = 1;
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
+                         force_disable_hpet_msi);
+
 #endif
 
 #if defined(CONFIG_PCI) && defined(CONFIG_NUMA)