diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-11 13:32:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-11 13:32:55 -0700 |
| commit | 80519bc77b52729ca49b278b67d58715e38b85e9 (patch) | |
| tree | 9c6dca32abb277f23a8eb99bfc39997cef42c6c7 /drivers/i2c | |
| parent | ecd4b48a163b55d7eb4132617100b90d0d2768ec (diff) | |
| parent | 102b59c6d6d30fb6560177fd1ae8a34c4c163897 (diff) | |
Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c/mips: Fix error return codes from Sibyte i2c bus driver
i2c: Fix probability check
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-sibyte.c | 4 | ||||
| -rw-r--r-- | drivers/i2c/i2c-core.c | 7 |
2 files changed, 5 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c index 3d76a188e42..0fe505d7abe 100644 --- a/drivers/i2c/busses/i2c-sibyte.c +++ b/drivers/i2c/busses/i2c-sibyte.c @@ -94,7 +94,7 @@ static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, } break; default: - return -1; /* XXXKW better error code? */ + return -EOPNOTSUPP; } while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) @@ -104,7 +104,7 @@ static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, if (error & M_SMB_ERROR) { /* Clear error bit by writing a 1 */ csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS)); - return -1; /* XXXKW better error code? */ + return (error & M_SMB_ERROR_TYPE) ? -EIO : -ENXIO; } if (data_bytes == 1) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 1cca2631e5b..0815e10da7c 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1428,13 +1428,12 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver) if (!(adapter->class & driver->class)) goto exit_free; - /* Stop here if we can't use SMBUS_QUICK */ - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) { + /* Stop here if the bus doesn't support probing */ + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE)) { if (address_list[0] == I2C_CLIENT_END) goto exit_free; - dev_warn(&adapter->dev, "SMBus Quick command not supported, " - "can't probe for chips\n"); + dev_warn(&adapter->dev, "Probing not supported\n"); err = -EOPNOTSUPP; goto exit_free; } |