[PATCH] drivers/hwmon: use simple i2c probe

From: Stephen Kitt
Date: Tue Oct 11 2022 - 10:55:35 EST


All these drivers have an i2c probe function which doesn't use the
"struct i2c_device_id *id" parameter, so they can trivially be
converted to the "probe_new" style of probe with a single argument.

This is part of an ongoing transition to single-argument i2c probe
functions. Old-style probe functions involve a call to i2c_match_id:
in drivers/i2c/i2c-core-base.c,

/*
* When there are no more users of probe(),
* rename probe_new to probe.
*/
if (driver->probe_new)
status = driver->probe_new(client);
else if (driver->probe)
status = driver->probe(client,
i2c_match_id(driver->id_table, client));
else
status = -EINVAL;

Drivers which don't need the second parameter can be declared using
probe_new instead, avoiding the call to i2c_match_id. Drivers which do
can still be converted to probe_new-style, calling i2c_match_id
themselves (as is done currently for of_match_id).

This change was done using the following Coccinelle script, and fixed
up for whitespace changes:

@ rule1 @
identifier fn;
identifier client, id;
@@

- static int fn(struct i2c_client *client, const struct i2c_device_id *id)
+ static int fn(struct i2c_client *client)
{
...when != id
}

@ rule2 depends on rule1 @
identifier rule1.fn;
identifier driver;
@@

struct i2c_driver driver = {
- .probe
+ .probe_new
=
(
fn
|
- &fn
+ fn
)
,
};

Signed-off-by: Stephen Kitt <steve@xxxxxxx>
---
drivers/hwmon/aht10.c | 5 ++---
drivers/hwmon/emc2305.c | 4 ++--
drivers/hwmon/ltc2992.c | 4 ++--
drivers/hwmon/max127.c | 5 ++---
drivers/hwmon/sbrmi.c | 5 ++---
drivers/hwmon/sbtsi_temp.c | 5 ++---
drivers/hwmon/sht4x.c | 5 ++---
7 files changed, 14 insertions(+), 19 deletions(-)

diff --git a/drivers/hwmon/aht10.c b/drivers/hwmon/aht10.c
index 2d9770cb4401..d76f3441ecf1 100644
--- a/drivers/hwmon/aht10.c
+++ b/drivers/hwmon/aht10.c
@@ -289,8 +289,7 @@ static const struct hwmon_chip_info aht10_chip_info = {
.info = aht10_info,
};

-static int aht10_probe(struct i2c_client *client,
- const struct i2c_device_id *aht10_id)
+static int aht10_probe(struct i2c_client *client)
{
struct device *device = &client->dev;
struct device *hwmon_dev;
@@ -336,7 +335,7 @@ static struct i2c_driver aht10_driver = {
.driver = {
.name = "aht10",
},
- .probe = aht10_probe,
+ .probe_new = aht10_probe,
.id_table = aht10_id,
};

diff --git a/drivers/hwmon/emc2305.c b/drivers/hwmon/emc2305.c
index aa1f25add0b6..f222fcf3b6aa 100644
--- a/drivers/hwmon/emc2305.c
+++ b/drivers/hwmon/emc2305.c
@@ -518,7 +518,7 @@ static int emc2305_identify(struct device *dev)
return 0;
}

-static int emc2305_probe(struct i2c_client *client, const struct i2c_device_id *id)
+static int emc2305_probe(struct i2c_client *client)
{
struct i2c_adapter *adapter = client->adapter;
struct device *dev = &client->dev;
@@ -607,7 +607,7 @@ static struct i2c_driver emc2305_driver = {
.driver = {
.name = "emc2305",
},
- .probe = emc2305_probe,
+ .probe_new = emc2305_probe,
.remove = emc2305_remove,
.id_table = emc2305_ids,
.address_list = emc2305_normal_i2c,
diff --git a/drivers/hwmon/ltc2992.c b/drivers/hwmon/ltc2992.c
index 72489d5d7eaf..88514152d930 100644
--- a/drivers/hwmon/ltc2992.c
+++ b/drivers/hwmon/ltc2992.c
@@ -881,7 +881,7 @@ static int ltc2992_parse_dt(struct ltc2992_state *st)
return 0;
}

-static int ltc2992_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
+static int ltc2992_i2c_probe(struct i2c_client *client)
{
struct device *hwmon_dev;
struct ltc2992_state *st;
@@ -927,7 +927,7 @@ static struct i2c_driver ltc2992_i2c_driver = {
.name = "ltc2992",
.of_match_table = ltc2992_of_match,
},
- .probe = ltc2992_i2c_probe,
+ .probe_new = ltc2992_i2c_probe,
.id_table = ltc2992_i2c_id,
};

diff --git a/drivers/hwmon/max127.c b/drivers/hwmon/max127.c
index 402ffdc2f425..0e21e7e6bbd2 100644
--- a/drivers/hwmon/max127.c
+++ b/drivers/hwmon/max127.c
@@ -303,8 +303,7 @@ static const struct hwmon_chip_info max127_chip_info = {
.info = max127_info,
};

-static int max127_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int max127_probe(struct i2c_client *client)
{
int i;
struct device *hwmon_dev;
@@ -340,7 +339,7 @@ static struct i2c_driver max127_driver = {
.driver = {
.name = "max127",
},
- .probe = max127_probe,
+ .probe_new = max127_probe,
.id_table = max127_id,
};

diff --git a/drivers/hwmon/sbrmi.c b/drivers/hwmon/sbrmi.c
index 7bf0c3fba75f..8ea5a4d3219f 100644
--- a/drivers/hwmon/sbrmi.c
+++ b/drivers/hwmon/sbrmi.c
@@ -297,8 +297,7 @@ static int sbrmi_get_max_pwr_limit(struct sbrmi_data *data)
return ret;
}

-static int sbrmi_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int sbrmi_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct device *hwmon_dev;
@@ -348,7 +347,7 @@ static struct i2c_driver sbrmi_driver = {
.name = "sbrmi",
.of_match_table = of_match_ptr(sbrmi_of_match),
},
- .probe = sbrmi_probe,
+ .probe_new = sbrmi_probe,
.id_table = sbrmi_id,
};

diff --git a/drivers/hwmon/sbtsi_temp.c b/drivers/hwmon/sbtsi_temp.c
index e35357c48b8e..4c37de846f93 100644
--- a/drivers/hwmon/sbtsi_temp.c
+++ b/drivers/hwmon/sbtsi_temp.c
@@ -199,8 +199,7 @@ static const struct hwmon_chip_info sbtsi_chip_info = {
.info = sbtsi_info,
};

-static int sbtsi_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int sbtsi_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct device *hwmon_dev;
@@ -239,7 +238,7 @@ static struct i2c_driver sbtsi_driver = {
.name = "sbtsi",
.of_match_table = of_match_ptr(sbtsi_of_match),
},
- .probe = sbtsi_probe,
+ .probe_new = sbtsi_probe,
.id_table = sbtsi_id,
};

diff --git a/drivers/hwmon/sht4x.c b/drivers/hwmon/sht4x.c
index 13ac2d8f22c7..13e042927bf8 100644
--- a/drivers/hwmon/sht4x.c
+++ b/drivers/hwmon/sht4x.c
@@ -232,8 +232,7 @@ static const struct hwmon_chip_info sht4x_chip_info = {
.info = sht4x_info,
};

-static int sht4x_probe(struct i2c_client *client,
- const struct i2c_device_id *sht4x_id)
+static int sht4x_probe(struct i2c_client *client)
{
struct device *device = &client->dev;
struct device *hwmon_dev;
@@ -292,7 +291,7 @@ static struct i2c_driver sht4x_driver = {
.name = "sht4x",
.of_match_table = sht4x_of_match,
},
- .probe = sht4x_probe,
+ .probe_new = sht4x_probe,
.id_table = sht4x_id,
};


base-commit: 833477fce7a14d43ae4c07f8ddc32fa5119471a2
--
2.30.2