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[PATCH] hwmon: hwmon vs i2c, second round (01/11)

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Add support for kind-forced addresses to i2c_probe, like i2c_detect
has for (essentially) hardware monitoring drivers.

Note that this change will slightly increase the size of the drivers
using I2C_CLIENT_INSMOD, with no immediate benefit. This is a
requirement if we want to merge i2c_probe and i2c_detect though, and
seems a reasonable price to pay in comparison with the previous
cleanups which saved much more than that (such as the i2c-isa cleanup
or the i2c address ranges removal.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean Delvare
2005-07-31 21:20:43 +02:00
committed by Greg Kroah-Hartman
parent 5cb802293e
commit 9fc6adfa9a
15 changed files with 34 additions and 26 deletions
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38
drivers/i2c/i2c-core.c
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@@ -662,6 +662,28 @@ int i2c_control(struct i2c_client *client,
* Will not work for 10-bit addresses!
* ----------------------------------------------------
*/
/* Return: kind (>= 0) if force found, -1 if not found */
static inline int i2c_probe_forces(struct i2c_adapter *adapter, int addr,
unsigned short **forces)
{
unsigned short kind;
int j, adap_id = i2c_adapter_id(adapter);
for (kind = 0; forces[kind]; kind++) {
for (j = 0; forces[kind][j] != I2C_CLIENT_END; j += 2) {
if ((forces[kind][j] == adap_id ||
forces[kind][j] == ANY_I2C_BUS)
&& forces[kind][j + 1] == addr) {
dev_dbg(&adapter->dev, "found force parameter, "
"addr 0x%02x, kind %u\n", addr, kind);
return kind;
}
}
}
return -1;
}
int i2c_probe(struct i2c_adapter *adapter,
struct i2c_client_address_data *address_data,
int (*found_proc) (struct i2c_adapter *, int, int))
@@ -683,19 +705,15 @@ int i2c_probe(struct i2c_adapter *adapter,
at all */
found = 0;
for (i = 0; !found && (address_data->force[i] != I2C_CLIENT_END); i += 2) {
if (((adap_id == address_data->force[i]) ||
(address_data->force[i] == ANY_I2C_BUS)) &&
(addr == address_data->force[i+1])) {
dev_dbg(&adapter->dev, "found force parameter for adapter %d, addr %04x\n",
adap_id, addr);
if ((err = found_proc(adapter,addr,0)))
if (address_data->forces) {
int kind = i2c_probe_forces(adapter, addr,
address_data->forces);
if (kind >= 0) { /* force found */
if ((err = found_proc(adapter, addr, kind)))
return err;
found = 1;
continue;
}
}
if (found)
continue;
/* If this address is in one of the ignores, we can forget about
it right now */