1 files changed, 16 insertions, 1 deletions

diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 862eb352a2d9..73dc52e114eb 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -36,6 +36,7 @@
    VT8237S            0x3372             yes
    VT8251             0x3287             yes
    CX700              0x8324             yes
+   VX800/VX820        0x8353             yes
 
    Note: we assume there can only be one device, with one SMBus interface.
 */
@@ -82,6 +83,7 @@ static unsigned short SMBHSTCFG = 0xD2;
 #define VT596_BYTE              0x04
 #define VT596_BYTE_DATA         0x08
 #define VT596_WORD_DATA         0x0C
+#define VT596_PROC_CALL         0x10
 #define VT596_BLOCK_DATA        0x14
 #define VT596_I2C_BLOCK_DATA    0x34
 
@@ -232,6 +234,12 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
                 }
                 size = VT596_WORD_DATA;
                 break;
+        case I2C_SMBUS_PROC_CALL:
+                outb_p(command, SMBHSTCMD);
+                outb_p(data->word & 0xff, SMBHSTDAT0);
+                outb_p((data->word & 0xff00) >> 8, SMBHSTDAT1);
+                size = VT596_PROC_CALL;
+                break;
         case I2C_SMBUS_I2C_BLOCK_DATA:
                 if (!(vt596_features & FEATURE_I2CBLOCK))
                         goto exit_unsupported;
@@ -262,6 +270,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
         if (status)
                 return status;
 
+        if (size == VT596_PROC_CALL)
+                read_write = I2C_SMBUS_READ;
+
         if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK))
                 return 0;
 
@@ -271,6 +282,7 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
                 data->byte = inb_p(SMBHSTDAT0);
                 break;
         case VT596_WORD_DATA:
+        case VT596_PROC_CALL:
                 data->word = inb_p(SMBHSTDAT0) + (inb_p(SMBHSTDAT1) << 8);
                 break;
         case VT596_I2C_BLOCK_DATA:
@@ -295,7 +307,7 @@ static u32 vt596_func(struct i2c_adapter *adapter)
 {
         u32 func = I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
             I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
-            I2C_FUNC_SMBUS_BLOCK_DATA;
+            I2C_SMBUS_PROC_CALL | I2C_FUNC_SMBUS_BLOCK_DATA;
 
         if (vt596_features & FEATURE_I2CBLOCK)
                 func |= I2C_FUNC_SMBUS_I2C_BLOCK;
@@ -396,6 +408,7 @@ found:
 
         switch (pdev->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:
@@ -459,6 +472,8 @@ static struct pci_device_id vt596_ids[] = {
           .driver_data = SMBBA3 },
         { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700),
           .driver_data = SMBBA3 },
+        { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX800),
+          .driver_data = SMBBA3 },
         { 0, }
 };