From: Flavio Leitner <fbl@redhat.com>
Date: Tue, 24 Mar 2009 15:49:54 -0300
Subject: [i2c] i2c-piix4: support for the Broadcom HT1100 chipset
Message-id: 20090324184954.GA22286@redhat.com
O-Subject: [RHEL5.4 PATCH] i2c-piix4: Add support for the Broadcom HT1100 chipset
Bugzilla: 474240
RH-Acked-by: Pete Zaitcev <zaitcev@redhat.com>
RH-Acked-by: Prarit Bhargava <prarit@redhat.com>

RHBZ#:
https://bugzilla.redhat.com/show_bug.cgi?id=474240
Support of Broadcom HT1100 chipset - add new PCI ID

Description:
The module has been enabled in 2.6.18-78.el5, rhbz#424531
and this patch adds the new PCI ID.

Upstream:
Patch will be merged in 2.6.30.
http://thread.gmane.org/gmane.linux.drivers.i2c/3309

Testing:
Customer has applied the patch manually and reports that it works.
They are now doing the following below to work around:
echo "0x1166:0x0408" > /sys/bus/pci/drivers/piix4_smbus/new_id

Flavio Leitner

diff --git a/Documentation/i2c/busses/i2c-piix4 b/Documentation/i2c/busses/i2c-piix4
index cf6b6cb..84ac81d 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 e19b1fa..f1bb8f2 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -186,6 +186,7 @@ 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 1907914..dfaab59 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -22,7 +22,7 @@
 /*
    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
 
@@ -407,6 +407,8 @@ static struct pci_device_id piix4_ids[] = {
 	  .driver_data = 0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB),
 	  .driver_data = 0 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1100LD),
+	  .driver_data = 0 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3),
 	  .driver_data = 3 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3),
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index c1fd2aa..af4554e 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1447,6 +1447,7 @@
 #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