i2c-viapro: Add VIA VX900 device ID

The SMBus controller in the VIA VX900 appears to be compatible with
the VIA VX855, so just add the device ID.

This closes kernel bug #43096.
Signed-off-by: Jean Delvare <khali@linux-fr.org>

Documentation/i2c/busses/i2c-viapro

@@ -20,7 +20,10 @@ Supported adapters:
     Datasheet: available on http://linux.via.com.tw
 
   * VIA Technologies, Inc. VX855/VX875
-    Datasheet: Availability unknown
+    Datasheet: available on http://linux.via.com.tw
+
+  * VIA Technologies, Inc. VX900
+    Datasheet: available on http://linux.via.com.tw
 
 Authors:
 	Kyösti Mälkki <kmalkki@cc.hut.fi>,
@@ -57,6 +60,7 @@ Your lspci -n listing must show one of these :
  device 1106:8324   (CX700)
  device 1106:8353   (VX800/VX820)
  device 1106:8409   (VX855/VX875)
+ device 1106:8410   (VX900)
 
 If none of these show up, you should look in the BIOS for settings like
 enable ACPI / SMBus or even USB.

drivers/i2c/busses/Kconfig

@@ -225,7 +225,7 @@ config I2C_VIA
 	  will be called i2c-via.
 
 config I2C_VIAPRO
-	tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx"
+	tristate "VIA VT82C596/82C686/82xx and CX700/VX8xx/VX900"
 	depends on PCI
 	help
 	  If you say yes to this option, support will be included for the VIA
@@ -241,6 +241,7 @@ config I2C_VIAPRO
 	    CX700
 	    VX800/VX820
 	    VX855/VX875
+	    VX900
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-viapro.

drivers/i2c/busses/i2c-viapro.c

@@ -401,6 +401,7 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
 	case PCI_DEVICE_ID_VIA_CX700:
 	case PCI_DEVICE_ID_VIA_VX800:
 	case PCI_DEVICE_ID_VIA_VX855:
+	case PCI_DEVICE_ID_VIA_VX900:
 	case PCI_DEVICE_ID_VIA_8251:
 	case PCI_DEVICE_ID_VIA_8237:
 	case PCI_DEVICE_ID_VIA_8237A:
@@ -470,6 +471,8 @@ static DEFINE_PCI_DEVICE_TABLE(vt596_ids) = {
 	  .driver_data = SMBBA3 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855),
 	  .driver_data = SMBBA3 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900),
+	  .driver_data = SMBBA3 },
 	{ 0, }
 };
 

include/linux/pci_ids.h

@@ -1427,6 +1427,7 @@
 #define PCI_DEVICE_ID_VIA_CX700_IDE	0x0581
 #define PCI_DEVICE_ID_VIA_VX800		0x8353
 #define PCI_DEVICE_ID_VIA_VX855		0x8409
+#define PCI_DEVICE_ID_VIA_VX900		0x8410
 #define PCI_DEVICE_ID_VIA_8371_1	0x8391
 #define PCI_DEVICE_ID_VIA_82C598_1	0x8598
 #define PCI_DEVICE_ID_VIA_838X_1	0xB188