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[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(-)
This commit is contained in:
Jean Delvare 2005-09-25 16:50:06 +02:00 committed by Greg Kroah-Hartman
parent cb929eae78
commit 4366dc946c
1 changed files with 11 additions and 4 deletions
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15
drivers/i2c/i2c-core.c
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@ -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) {