diff --git a/Documentation/i2c/busses/i2c-piix4 b/Documentation/i2c/busses/i2c-piix4
index ef1efa79b1df82dbbd4f7b0a96dcda6021769a4c..f889481762b5686a4819a7ddafb174b26fb104f9 100644
--- a/Documentation/i2c/busses/i2c-piix4
+++ b/Documentation/i2c/busses/i2c-piix4
@@ -4,7 +4,7 @@ Supported adapters:
   * Intel 82371AB PIIX4 and PIIX4E
   * Intel 82443MX (440MX)
     Datasheet: Publicly available at the Intel website
-  * ServerWorks OSB4, CSB5, CSB6 and HT-1000 southbridges
+  * ServerWorks OSB4, CSB5, CSB6, HT-1000 and HT-1100 southbridges
     Datasheet: Only available via NDA from ServerWorks
   * ATI IXP200, IXP300, IXP400, SB600, SB700 and SB800 southbridges
     Datasheet: Not publicly available
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 68650643d116bbe8f19ef1b2b5bfeb439e00de3c..da809ad0996aaa1ea010a13900fa466be9e92ec0 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -132,6 +132,7 @@ config I2C_PIIX4
 	    Serverworks CSB5
 	    Serverworks CSB6
 	    Serverworks HT-1000
+	    Serverworks HT-1100
 	    SMSC Victory66
 
 	  This driver can also be built as a module.  If so, the module
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 63d5e597804610c83f244391cc61227fa83b5442..0249a7d762b94e27ff2ceed3190794ff40ea0dce 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -20,7 +20,7 @@
 /*
    Supports:
 	Intel PIIX4, 440MX
-	Serverworks OSB4, CSB5, CSB6, HT-1000
+	Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100
 	ATI IXP200, IXP300, IXP400, SB600, SB700, SB800
 	SMSC Victory66
 
@@ -487,6 +487,8 @@ static struct pci_device_id piix4_ids[] = {
 		     PCI_DEVICE_ID_SERVERWORKS_CSB6) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
 		     PCI_DEVICE_ID_SERVERWORKS_HT1000SB) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS,
+		     PCI_DEVICE_ID_SERVERWORKS_HT1100LD) },
 	{ 0, }
 };
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 5109fecde2843f9e433a726644b4e654d4c195a0..2c9e8080da5e620873656fae4ac57c5c31a7030a 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1479,6 +1479,7 @@
 #define PCI_DEVICE_ID_SERVERWORKS_HT1000IDE 0x0214
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2 0x0217
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6LPC 0x0227
+#define PCI_DEVICE_ID_SERVERWORKS_HT1100LD 0x0408
 
 #define PCI_VENDOR_ID_SBE		0x1176
 #define PCI_DEVICE_ID_SBE_WANXL100	0x0301