i2c-i801: Don't use the block buffer for I2C block writes

[net-next-2.6.git] / drivers / i2c / busses / i2c-i801.c

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 9da5b05cdb528b7eebf34c7778f34e8725c39b77..299b918455a36999242027de9312fe98ce811db7 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -416,9 +416,11 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
                data->block[0] = 32;    /* max for SMBus block reads */
        }
 
+       /* Experience has shown that the block buffer can only be used for
+          SMBus (not I2C) block transactions, even though the datasheet
+          doesn't mention this limitation. */
        if ((i801_features & FEATURE_BLOCK_BUFFER)
-        && !(command == I2C_SMBUS_I2C_BLOCK_DATA
-             && read_write == I2C_SMBUS_READ)
+        && command != I2C_SMBUS_I2C_BLOCK_DATA
         && i801_set_block_buffer_mode() == 0)
                result = i801_block_transaction_by_block(data, read_write,
                                                         hwpec);