diff options
author | Stephen Kitt <steve@sk2.org> | 2020-08-08 23:00:04 +0200 |
---|---|---|
committer | Guenter Roeck <linux@roeck-us.net> | 2020-09-23 09:42:39 -0700 |
commit | dd43193976b9a7b2affe8fb71780bb96d16a8449 (patch) | |
tree | 91a68a368fe89780c92d550f97c7e557ec949b58 /drivers/hwmon/pmbus/adm1275.c | |
parent | e40358390928f9ab9d8d7dde5c60c08981dc1d81 (diff) |
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>
Diffstat (limited to 'drivers/hwmon/pmbus/adm1275.c')
-rw-r--r-- | drivers/hwmon/pmbus/adm1275.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c index 651846650a9c..e7997f37b266 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -462,8 +462,7 @@ static const struct i2c_device_id adm1275_id[] = { }; MODULE_DEVICE_TABLE(i2c, adm1275_id); -static int adm1275_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int adm1275_probe(struct i2c_client *client) { s32 (*config_read_fn)(const struct i2c_client *client, u8 reg); u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1]; @@ -506,10 +505,10 @@ static int adm1275_probe(struct i2c_client *client, return -ENODEV; } - if (id->driver_data != mid->driver_data) + if (strcmp(client->name, mid->name) != 0) dev_notice(&client->dev, "Device mismatch: Configured %s, detected %s\n", - id->name, mid->name); + client->name, mid->name); if (mid->driver_data == adm1272 || mid->driver_data == adm1278 || mid->driver_data == adm1293 || mid->driver_data == adm1294) @@ -790,14 +789,14 @@ static int adm1275_probe(struct i2c_client *client, info->R[PSC_TEMPERATURE] = coefficients[tindex].R; } - return pmbus_do_probe(client, id, info); + return pmbus_do_probe(client, info); } static struct i2c_driver adm1275_driver = { .driver = { .name = "adm1275", }, - .probe = adm1275_probe, + .probe_new = adm1275_probe, .remove = pmbus_do_remove, .id_table = adm1275_id, }; |