1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 9da5b05cdb52..299b918455a3 100644
--- 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);