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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-15 14:27:06 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-03-15 14:27:06 +0000 |
| commit | 2d3b5fa3a39d16c880bda3cf2bd9dd6ed5a01f74 (patch) | |
| tree | e20283fe2ed46aa35c8ca5fc1724ba067cd2e2f8 /drivers/i2c/busses/i2c-i801.c | |
| parent | 3f17522ce461a31e7ced6311b28fcf5b8a763316 (diff) | |
| parent | 7278a22143b003e9af7b9ca1b5f1c40ae4b55d98 (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/genesis-2.6
Diffstat (limited to 'drivers/i2c/busses/i2c-i801.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 9da5b05cdb5..299b918455a 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); |