[PATCH 05/11] hwmon: (pmbus/max34440) Remove use of i2c_match_id()
From: Andrew Davis
Date: Thu Mar 05 2026 - 15:00:56 EST
The function i2c_match_id() is used to fetch the matching ID from
the i2c_device_id table. This is often used to then retrieve the
matching driver_data. This can be done in one step with the helper
i2c_get_match_data().
This helper has a couple other benefits:
* It doesn't need the i2c_device_id passed in so we do not need
to have that forward declared, allowing us to remove those or
move the i2c_device_id table down to its more natural spot
with the other module info.
* It also checks for device match data, which allows for OF and
ACPI based probing. That means we do not have to manually check
those first and can remove those checks.
Signed-off-by: Andrew Davis <afd@xxxxxx>
---
drivers/hwmon/pmbus/max34440.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/hwmon/pmbus/max34440.c b/drivers/hwmon/pmbus/max34440.c
index 8ea4e68d4e9de..cc96bb22f8f5a 100644
--- a/drivers/hwmon/pmbus/max34440.c
+++ b/drivers/hwmon/pmbus/max34440.c
@@ -71,8 +71,6 @@ struct max34440_data {
#define to_max34440_data(x) container_of(x, struct max34440_data, info)
-static const struct i2c_device_id max34440_id[];
-
static int max34440_read_word_data(struct i2c_client *client, int page,
int phase, int reg)
{
@@ -628,7 +626,7 @@ static int max34440_probe(struct i2c_client *client)
GFP_KERNEL);
if (!data)
return -ENOMEM;
- data->id = i2c_match_id(max34440_id, client)->driver_data;
+ data->id = (uintptr_t)i2c_get_match_data(client);
data->info = max34440_info[data->id];
data->iout_oc_fault_limit = MAX34440_IOUT_OC_FAULT_LIMIT;
data->iout_oc_warn_limit = MAX34440_IOUT_OC_WARN_LIMIT;
--
2.39.2