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| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2014-01-26 16:05:34 +0000 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-01-26 22:48:29 +0100 |
| commit | 770540f029ba65a2658b5204d850565ab7f61f1b (patch) | |
| tree | a9417aed98bb54fb0e85fce137dc84ed7d4b8ce0 /drivers/i2c | |
| parent | 72fa818e8a3145ab3e345acbd3eccfa71a120702 (diff) | |
| download | op-kernel-dev-770540f029ba65a2658b5204d850565ab7f61f1b.zip op-kernel-dev-770540f029ba65a2658b5204d850565ab7f61f1b.tar.gz | |
i2c: rcar: do not print error if device nacks transfer
The i2c-rcar driver currently prints an error message if the master_xfer
callback fails. However if the bus is being probed then lots of NAKs
will be generated, causing the output of a number of errors printed.
To solve this, disable the print if the error is not -EREMOTEIO.
An example of running i2cdetect:
10: i2c-rcar e6530000.i2c: error -121 : 15
-- i2c-rcar e6530000.i2c: error -121 : 15
-- 12 i2c-rcar e6530000.i2c: error -121 : 15
-- i2c-rcar e6530000.i2c: error -121 : 15
-- i2c-rcar e6530000.i2c: error -121 : 15
-- i2c-rcar e6530000.i2c: error -121 : 15
-- i2c-rcar e6530000.i2c: error -121 : 15
-- i2c-rcar e6530000.i2c: error -121 : 15
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-rcar.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 4f5be21..fd4cd7f 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -622,7 +622,7 @@ static int rcar_i2c_master_xfer(struct i2c_adapter *adap, pm_runtime_put(dev); - if (ret < 0) + if (ret < 0 && ret != -EREMOTEIO) dev_err(dev, "error %d : %x\n", ret, priv->flags); return ret; |
