hwmon (pmbus) use simple i2c probe function
pmbus_do_probe doesn't use the id information provided in its second
argument, so this can be removed, which then allows using the
single-parameter i2c probe function ("probe_new") for probes.
This avoids scanning the identifier tables during probes.
Drivers which didn't use the id are converted as-is; drivers which did
are modified as follows:
* if the information in i2c_client is sufficient, that's used instead
(client->name);
* configured v. probed comparisons are performed by comparing the
configured name to the detected name, instead of the ids; this
involves strcmp but is still cheaper than comparing all the device
names when scanning the tables;
* anything else is handled by calling i2c_match_id() with the same
level of error-handling (if any) as before.
Additionally, the mismatch message in the ltc2978 driver is adjusted
so that it no longer assumes that the driver_data is an index into
ltc2978_id.
Signed-off-by: Stephen Kitt <steve@sk2.org>
Acked-by: Wolfram Sang <wsa@kernel.org>
Link: https://lore.kernel.org/r/20200808210004.30880-1-steve@sk2.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/pmbus/isl68137.c b/drivers/hwmon/pmbus/isl68137.c
index 58aa95a..7cad76e 100644
--- a/drivers/hwmon/pmbus/isl68137.c
+++ b/drivers/hwmon/pmbus/isl68137.c
@@ -72,6 +72,8 @@ enum variants {
raa_dmpvr2_hv,
};
+static const struct i2c_device_id raa_dmpvr_id[];
+
static ssize_t isl68137_avs_enable_show_page(struct i2c_client *client,
int page,
char *buf)
@@ -218,8 +220,7 @@ static struct pmbus_driver_info raa_dmpvr_info = {
| PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT,
};
-static int isl68137_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int isl68137_probe(struct i2c_client *client)
{
struct pmbus_driver_info *info;
@@ -228,7 +229,7 @@ static int isl68137_probe(struct i2c_client *client,
return -ENOMEM;
memcpy(info, &raa_dmpvr_info, sizeof(*info));
- switch (id->driver_data) {
+ switch (i2c_match_id(raa_dmpvr_id, client)->driver_data) {
case raa_dmpvr1_2rail:
info->pages = 2;
info->R[PSC_VOLTAGE_IN] = 3;
@@ -267,7 +268,7 @@ static int isl68137_probe(struct i2c_client *client,
return -ENODEV;
}
- return pmbus_do_probe(client, id, info);
+ return pmbus_do_probe(client, info);
}
static const struct i2c_device_id raa_dmpvr_id[] = {
@@ -322,7 +323,7 @@ static struct i2c_driver isl68137_driver = {
.driver = {
.name = "isl68137",
},
- .probe = isl68137_probe,
+ .probe_new = isl68137_probe,
.remove = pmbus_do_remove,
.id_table = raa_dmpvr_id,
};