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authorLinus Torvalds <torvalds@linux-foundation.org>2010-07-11 13:32:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-07-11 13:32:55 -0700
commit80519bc77b52729ca49b278b67d58715e38b85e9 (patch)
tree9c6dca32abb277f23a8eb99bfc39997cef42c6c7
parentecd4b48a163b55d7eb4132617100b90d0d2768ec (diff)
parent102b59c6d6d30fb6560177fd1ae8a34c4c163897 (diff)
downloadconfigs-80519bc77b52729ca49b278b67d58715e38b85e9.tar.gz
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
-rw-r--r--drivers/i2c/busses/i2c-sibyte.c4
-rw-r--r--drivers/i2c/i2c-core.c7
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;
}