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author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 13:56:16 +0200 |
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committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 13:56:16 +0200 |
commit | ff67a6b9aaddb2dea6ed4a3f7df8a0c6acf131c2 (patch) | |
tree | 34d81901340c14191fab6e0c5a424f45385ae2aa /drivers/i2c/algos/i2c-algo-pca.c | |
parent | e7549b926dd3ceec048f5689df90d4ec970c9419 (diff) | |
download | kernel_samsung_smdk4412-ff67a6b9aaddb2dea6ed4a3f7df8a0c6acf131c2.zip kernel_samsung_smdk4412-ff67a6b9aaddb2dea6ed4a3f7df8a0c6acf131c2.tar.gz kernel_samsung_smdk4412-ff67a6b9aaddb2dea6ed4a3f7df8a0c6acf131c2.tar.bz2 |
last driver import from 3.2.72 for now
Diffstat (limited to 'drivers/i2c/algos/i2c-algo-pca.c')
-rw-r--r-- | drivers/i2c/algos/i2c-algo-pca.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c index 4ca9cf9..beb9ffe 100644 --- a/drivers/i2c/algos/i2c-algo-pca.c +++ b/drivers/i2c/algos/i2c-algo-pca.c @@ -196,7 +196,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, } else { dev_dbg(&i2c_adap->dev, "bus is not idle. status is " "%#04x\n", state); - return -EAGAIN; + return -EBUSY; } } @@ -224,7 +224,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, } curmsg = 0; - ret = -EREMOTEIO; + ret = -EIO; while (curmsg < num) { state = pca_status(adap); @@ -259,6 +259,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, case 0x20: /* SLA+W has been transmitted; NOT ACK has been received */ DEB2("NOT ACK received after SLA+W\n"); pca_stop(adap); + ret = -ENXIO; goto out; case 0x40: /* SLA+R has been transmitted; ACK has been received */ @@ -283,6 +284,7 @@ static int pca_xfer(struct i2c_adapter *i2c_adap, case 0x48: /* SLA+R has been transmitted; NOT ACK has been received */ DEB2("NOT ACK received after SLA+R\n"); pca_stop(adap); + ret = -ENXIO; goto out; case 0x30: /* Data byte in I2CDAT has been transmitted; NOT ACK has been received */ |