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

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/i2c/chips/ds1374.c
View file

@ -53,7 +53,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_addr,
.probe = ignore,
.ignore = ignore,
.force = ignore,
};
static ulong ds1374_read_rtc(void)

1
drivers/i2c/chips/m41t00.c
View file

@ -42,7 +42,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_addr,
.probe = ignore,
.ignore = ignore,
.force = ignore,
};
ulong

1
drivers/i2c/chips/rtc8564.c
View file

@ -67,7 +67,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_addr,
.probe = ignore,
.ignore = ignore,
.force = ignore,
};
static int rtc8564_read_mem(struct i2c_client *client, struct mem *mem);

40
drivers/i2c/i2c-core.c
View file

@ -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;
}
}
if (found)
continue;
}
}
/* If this address is in one of the ignores, we can forget about
it right now */

1
drivers/media/video/adv7170.c
View file

@ -391,7 +391,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_adv7170;

1
drivers/media/video/adv7175.c
View file

@ -441,7 +441,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_adv7175;

1
drivers/media/video/bt819.c
View file

@ -507,7 +507,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_bt819;

1
drivers/media/video/bt856.c
View file

@ -295,7 +295,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_bt856;

1
drivers/media/video/saa7110.c
View file

@ -470,7 +470,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_saa7110;

1
drivers/media/video/saa7111.c
View file

@ -489,7 +489,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_saa7111;

1
drivers/media/video/saa7114.c
View file

@ -827,7 +827,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_saa7114;

1
drivers/media/video/saa7185.c
View file

@ -387,7 +387,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver i2c_driver_saa7185;

1
drivers/media/video/tuner-3036.c
View file

@ -41,7 +41,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
/* ---------------------------------------------------------------------- */

1
drivers/media/video/vpx3220.c
View file

@ -576,7 +576,6 @@ static struct i2c_client_address_data addr_data = {
.normal_i2c = normal_i2c,
.probe = &ignore,
.ignore = &ignore,
.force = &ignore,
};
static struct i2c_driver vpx3220_i2c_driver;

9
include/linux/i2c.h
View file

@ -48,7 +48,6 @@ struct i2c_algorithm;
struct i2c_adapter;
struct i2c_client;
struct i2c_driver;
struct i2c_client_address_data;
union i2c_smbus_data;
/*
@ -301,7 +300,7 @@ struct i2c_client_address_data {
unsigned short *normal_i2c;
unsigned short *probe;
unsigned short *ignore;
unsigned short *force;
unsigned short **forces;
};
/* Internal numbers to terminate lists */
@ -575,11 +574,15 @@ union i2c_smbus_data {
I2C_CLIENT_MODULE_PARM(force, \
"List of adapter,address pairs to boldly assume " \
"to be present"); \
static unsigned short *addr_forces[] = { \
force, \
NULL \
}; \
static struct i2c_client_address_data addr_data = { \
.normal_i2c = normal_i2c, \
.probe = probe, \
.ignore = ignore, \
.force = force, \
.forces = addr_forces, \
}
#endif /* _LINUX_I2C_H */