diff options
| author | Jean Delvare <khali@linux-fr.org> | 2005-09-25 16:50:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-10-28 14:02:07 -0700 |
| commit | 4366dc946c01305cff49b07dabb806d2364f1edb (patch) | |
| tree | 0cc9f6a086d47f3b8688f2f8c8ce6d924be97d03 /drivers/i2c | |
| parent | cb929eae78ec0b243dbf58039bce4af354f6020c (diff) | |
| download | linux-4366dc946c01305cff49b07dabb806d2364f1edb.tar.bz2 | |
[PATCH] i2c: Adjust i2c_probe() for busses without SMBUS_QUICK
Move the check for SMBUS_QUICK in i2c_probe() after the forced
addresses have been handled. This makes it possible for a driver to
leave the probed address lists empty, only providing forced addresses,
and get i2c_probe to work even if the bus doesn't support SMBUS_QUICK.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/i2c/i2c-core.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 45aa0e54e297..b55097d57b7a 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -706,10 +706,6 @@ int i2c_probe(struct i2c_adapter *adapter, int i, err; int adap_id = i2c_adapter_id(adapter); - /* Forget it if we can't probe using SMBUS_QUICK */ - if (! i2c_check_functionality(adapter,I2C_FUNC_SMBUS_QUICK)) - return -1; - /* Force entries are done first, and are not affected by ignore entries */ if (address_data->forces) { @@ -736,6 +732,17 @@ int i2c_probe(struct i2c_adapter *adapter, } } + /* Stop here if we can't use SMBUS_QUICK */ + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_QUICK)) { + if (address_data->probe[0] == I2C_CLIENT_END + && address_data->normal_i2c[0] == I2C_CLIENT_END) + return 0; + + dev_warn(&adapter->dev, "SMBus Quick command not supported, " + "can't probe for chips\n"); + return -1; + } + /* Probe entries are done second, and are not affected by ignore entries either */ for (i = 0; address_data->probe[i] != I2C_CLIENT_END; i += 2) { |