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| author |   Jean Delvare <khali@linux-fr.org> | 2008-07-14 22:38:25 +0200 |
|---|---|---|
| committer |   Jean Delvare <khali@mahadeva.delvare> | 2008-07-14 22:38:25 +0200 |
| commit | ac7fc4fb2b6a126af8d07f46500440c9641976cf (patch) | |
| tree | 1ba7a6b229699f6d69cfe3f1bd74c020e952e16b /drivers/i2c/busses/i2c-amd756.c | |
| parent | i2c-piix4: Various cleanups and minor fixes (diff) | |
| download | linux-dev-ac7fc4fb2b6a126af8d07f46500440c9641976cf.tar.xz linux-dev-ac7fc4fb2b6a126af8d07f46500440c9641976cf.zip | |
i2c: Consistently reject unsupported transactions
Many PC SMBus host controller drivers don't properly handle the case
where they are requested to achieve a transaction they do not support.
Update them so that the consistently print a warning message and
return a single error value in this case.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-amd756.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-amd756.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c index 3d5bcb65e9e0..f0baea62067d 100644 --- a/drivers/i2c/busses/i2c-amd756.c +++ b/drivers/i2c/busses/i2c-amd756.c @@ -200,12 +200,7 @@ static s32 amd756_access(struct i2c_adapter * adap, u16 addr, int i, len; int status; - /** TODO: Should I supporte the 10-bit transfers? */ switch (size) { - case I2C_SMBUS_PROC_CALL: - dev_dbg(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n"); - /* TODO: Well... It is supported, I'm just not sure what to do here... */ - return -EOPNOTSUPP; case I2C_SMBUS_QUICK: outw_p(((addr & 0x7f) << 1) | (read_write & 0x01), SMB_HOST_ADDRESS); @@ -252,6 +247,9 @@ static s32 amd756_access(struct i2c_adapter * adap, u16 addr, } size = AMD756_BLOCK_DATA; break; + default: + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; } /* How about enabling interrupts... */ |