i2c-piix4: Add ATI IXP200, IXP300, IXP400 support (2.6 backport)

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@4050 7894878c-1315-0410-8ee3-d5d059ff63e0

5 files changed, 33 insertions, 3 deletions

diff --git a/CHANGES b/CHANGES
index 812aeb2d..6c5067b0 100644
--- a/CHANGES
+++ b/CHANGES
@@ -16,6 +16,7 @@ lm_sensors CHANGES file
   Module i2c-i801: Disable PEC mode after every transaction (2.6 backport)
                    Add ICH8 support (2.6 backport)
   Module i2c-piix4: Add ServerWorks HT-1000 support (2.6 backport)
+                    Add ATI IXP200, IXP300, IXP400 support (2.6 backport)
   Module i2c-viapro: Fix compilation with kernels < 2.4.21
   Module lm83: Add LM82 support (2.6 backport)
   Module w83781d: Use real-time alarm registers when possible (2.6 backport)
diff --git a/README b/README
index d80d3085..cba3d6b0 100644
--- a/README
+++ b/README
@@ -57,6 +57,7 @@ At least the following I2C/SMBus adapters are supported:
   AMD 756, 766, 768 and 8111
   AMD 8111 SMBus 2.0
   Apple Hydra (used on some PPC machines)
+  ATI IXP200, IXP300, IXP400
   DEC 21272/21274 (Tsunami/Typhoon - on Alpha boards)
   Intel I801 ICH/ICH0/ICH2/ICH3/ICH4/ICH5/ICH6 (82801xx), 6300ESB, ICH7
   Intel PIIX4 (used in many Intel chipsets)
diff --git a/doc/busses/i2c-piix4 b/doc/busses/i2c-piix4
index 5e97a88e..9e426ce4 100644
--- a/doc/busses/i2c-piix4
+++ b/doc/busses/i2c-piix4
@@ -9,6 +9,8 @@ Supported adapters:
     Datasheet: Publicly available at the Intel website
   * ServerWorks OSB4, CSB5, CSB6 and HT-1000 southbridges
     Datasheet: Only available via NDA from ServerWorks
+  * ATI IXP southbridges IXP200, IXP300, IXP400
+    Datasheet: Not publicly available
   * Standard Microsystems (SMSC) SLC90E66 (Victory66) southbridge
     Datasheet: Publicly available at the SMSC website http://www.smsc.com
 
diff --git a/kernel/busses/i2c-piix4.c b/kernel/busses/i2c-piix4.c
index 3e6e4ad4..5383de40 100644
--- a/kernel/busses/i2c-piix4.c
+++ b/kernel/busses/i2c-piix4.c
@@ -23,6 +23,7 @@
    Supports:
 	Intel PIIX4, 440MX
 	Serverworks OSB4, CSB5, CSB6, HT-1000
+	ATI IXP200, IXP300, IXP400
 	SMSC Victory66
 
    Note: we assume there can only be one device, with one SMBus interface.
@@ -455,6 +456,10 @@ static struct i2c_adapter piix4_adapter = {
 	.dec_use	= piix4_dec,
 };
 
+#define PCI_DEVICE_ID_ATI_IXP200_SMBUS	0x4353
+#define PCI_DEVICE_ID_ATI_IXP300_SMBUS	0x4363
+#define PCI_DEVICE_ID_ATI_IXP400_SMBUS	0x4372
+
 #ifndef PCI_DEVICE_ID_SERVERWORKS_CSB6
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6 0x0203
 #endif
@@ -470,6 +475,27 @@ static struct pci_device_id piix4_ids[] __devinitdata = {
 		.driver_data =	3
 	},
 	{
+		.vendor =	PCI_VENDOR_ID_ATI,
+		.device =	PCI_DEVICE_ID_ATI_IXP200_SMBUS,
+		.subvendor =	PCI_ANY_ID,
+		.subdevice =	PCI_ANY_ID,
+		.driver_data =	0,
+	},
+	{
+		.vendor =	PCI_VENDOR_ID_ATI,
+		.device =	PCI_DEVICE_ID_ATI_IXP300_SMBUS,
+		.subvendor =	PCI_ANY_ID,
+		.subdevice =	PCI_ANY_ID,
+		.driver_data =	0,
+	},
+	{
+		.vendor =	PCI_VENDOR_ID_ATI,
+		.device =	PCI_DEVICE_ID_ATI_IXP400_SMBUS,
+		.subvendor =	PCI_ANY_ID,
+		.subdevice =	PCI_ANY_ID,
+		.driver_data =	0,
+	},
+	{
 		.vendor =	PCI_VENDOR_ID_SERVERWORKS,
 		.device =	PCI_DEVICE_ID_SERVERWORKS_OSB4,
 		.subvendor =	PCI_ANY_ID,
diff --git a/mkpatch/mkpatch.pl b/mkpatch/mkpatch.pl
index 5104ae18..a059fd0a 100755
--- a/mkpatch/mkpatch.pl
+++ b/mkpatch/mkpatch.pl
@@ -224,9 +224,9 @@ Intel 82371AB PIIX4(E), ServerWorks OSB4, CSB5, CSB6, HT-1000
 CONFIG_I2C_PIIX4
   If you say yes to this option, support will be included for the
   Intel PIIX4, PIIX4E, 443MX, Serverworks OSB4, CSB5, CSB6 and
-  HT-1000, and SMSC Victory66 mainboard I2C interfaces. This can also be
-  built as a module which can be inserted and removed while the kernel
-  is running.
+  HT-1000, ATI IXP200, IXP300 and IXP400, and SMSC Victory66 mainboard
+  I2C interfaces. This can also be built as a module which can be
+  inserted and removed while the kernel is running.
 
 Nvidia Nforce2/Nforce3 based Mainboard
 CONFIG_I2C_NFORCE2