Add support for the VIA VX800/VX820 SMBus. Backported from Linux 2.6.

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5368 7894878c-1315-0410-8ee3-d5d059ff63e0

CHANGES

@@ -10,6 +10,7 @@ SVN-HEAD
   Module i2c-i801: Remove verbose debugging messages (2.6 backport)
                    Properly report bus arbitration lost (2.6 backport)
   Module i2c-piix4: Minor cleanups (2.6 backport)
+  Module i2c-viapro: Add VX800/VX820 support (2.6 backport)
   Program pwmconfig: Fix MINSTOP and MINSTART test functions (#2340)
                      Change default for MINTEMP from 0 to 20 degrees C
   Program sensord: Add it8720 support

README

@@ -61,7 +61,8 @@ At least the following I2C/SMBus adapters are supported:
   SMSC Victory66
   3Dfx Voodoo 3 and Banshee
   VIA Technologies VT82C586B, VT82C596A/B, VT82C686A/B, VT8231,
-                   VT8233, VT8233A, VT8235, VT8237R/A, VT8251, CX700
+                   VT8233, VT8233A, VT8235, VT8237R/A, VT8251,
+                   CX700, VX800/VX820
 
 
 At least the following hardware sensor chips are supported:

doc/busses/i2c-viapro

@@ -15,6 +15,9 @@ Supported adapters:
   * VIA Technologies, Inc. CX700
     Datasheet: available on request and under NDA from VIA
 
+  * VIA Technologies, Inc. VX800/VX820
+    Datasheet: available on http://linux.via.com.tw
+
 Authors:
 	Kyösti Mälkki <kmalkki@cc.hut.fi>
 	Mark D. Studebaker <mdsxyz123@yahoo.com> 
@@ -49,6 +52,7 @@ Your /proc/pci or lspci -n listing must show one of these :
  device 1106:3337   (VT8237A)
  device 1106:3287   (VT8251)
  device 1106:8324   (CX700)
+ device 1106:8353   (VX800/VX820)
 
 If none of these show up, you should look in the BIOS for settings like
 enable ACPI / SMBus or even USB.
@@ -57,5 +61,5 @@ Except for the oldest chips (VT82C596A/B, VT82C686A and most probably
 VT8231), this driver supports I2C block transactions. Such transactions
 are mainly useful to read from and write to EEPROMs.
 
-The CX700 additionally appears to support SMBus PEC, although this driver
-doesn't implement it.
+The CX700/VX800/VX820 additionally appears to support SMBus PEC, although
+this driver doesn't implement it.

kernel/busses/i2c-viapro.c

@@ -37,6 +37,7 @@
    VT8237A            0x3337             yes
    VT8251             0x3287             yes
    CX700              0x8324             yes
+   VX800/VX820        0x8353             yes
 
    Note: we assume there can only be one device, with one SMBus interface.
 */
@@ -76,6 +77,10 @@
 #ifndef PCI_DEVICE_ID_VIA_CX700
 #define PCI_DEVICE_ID_VIA_CX700	0x8324
 #endif
+/* VX800 is undefined */
+#ifndef PCI_DEVICE_ID_VIA_VX800
+#define PCI_DEVICE_ID_VIA_VX800	0x8353
+#endif
 
 #define SMBBA1		0x90
 #define SMBBA2		0x80
@@ -424,6 +429,7 @@ found:
 
 	switch (id->device) {
 	case PCI_DEVICE_ID_VIA_CX700:
+	case PCI_DEVICE_ID_VIA_VX800:
 	case PCI_DEVICE_ID_VIA_8251:
 	case PCI_DEVICE_ID_VIA_8237:
 	case PCI_DEVICE_ID_VIA_8237A:
@@ -529,6 +535,13 @@ static struct pci_device_id vt596_ids[] __initdata = {
 		.subdevice	= PCI_ANY_ID,
 		.driver_data	= SMBBA3
 	},
+	{
+		.vendor		= PCI_VENDOR_ID_VIA,
+		.device 	= PCI_DEVICE_ID_VIA_VX800,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= SMBBA3
+	},
 	{ 0, }
 };
 

mkpatch/mkpatch.pl

@@ -267,7 +267,7 @@ CONFIG_I2C_VIA
   be built as a module which can be inserted and removed while the
   kernel is running.
 
-VIA Technologies, Inc. VT82C596/82C686/82xx and CX700
+VIA Technologies, Inc. VT82C596/82C686/82xx and CX700/VX800/VX820
 CONFIG_I2C_VIAPRO
   If you say yes to this option, support will be included for the VIA
   Technologies I2C adapter on these chips. For integrated sensors on the
@@ -998,7 +998,7 @@ sub gen_drivers_i2c_Config_in
     dep_tristate '  SiS 645/961,645DX/961,735' CONFIG_I2C_SIS645 $CONFIG_I2C $CONFIG_HOTPLUG
     dep_tristate '  Savage 4' CONFIG_I2C_SAVAGE4 $CONFIG_I2C_ALGOBIT
     dep_tristate '  VIA Technologies, Inc. VT82C586B' CONFIG_I2C_VIA $CONFIG_I2C_ALGOBIT
-    dep_tristate '  VIA Technologies, Inc. VT82C596/82C686/82xx and CX700' CONFIG_I2C_VIAPRO $CONFIG_I2C
+    dep_tristate '  VIA Technologies, Inc. VT82C596/82C686/82xx and CX700/VX800/VX820' CONFIG_I2C_VIAPRO $CONFIG_I2C
     dep_tristate '  Voodoo3 I2C interface' CONFIG_I2C_VOODOO3 $CONFIG_I2C_ALGOBIT
     dep_tristate '  Pseudo ISA adapter (for some hardware sensors)' CONFIG_I2C_ISA $CONFIG_I2C
   fi