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HID: i2c: use simple i2c probe

Browse source 
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@sk2.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Stephen Kitt 2022-10-12 18:33:00 +02:00 committed by Jiri Kosina
parent 79d11de963
commit baf34f3bbe
3 changed files with 6 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/hid/i2c-hid/i2c-hid-of-elan.c
View file

@ -68,8 +68,7 @@ static void elan_i2c_hid_power_down(struct i2chid_ops *ops)
regulator_disable(ihid_elan->vcc33);
}
static int i2c_hid_of_elan_probe(struct i2c_client *client,
const struct i2c_device_id *id)
static int i2c_hid_of_elan_probe(struct i2c_client *client)
{
struct i2c_hid_of_elan *ihid_elan;
@ -119,7 +118,7 @@ static struct i2c_driver elan_i2c_hid_ts_driver = {
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(elan_i2c_hid_of_match),
},
.probe = i2c_hid_of_elan_probe,
.probe_new = i2c_hid_of_elan_probe,
.remove = i2c_hid_core_remove,
.shutdown = i2c_hid_core_shutdown,
};

5
drivers/hid/i2c-hid/i2c-hid-of-goodix.c
View file

@ -87,8 +87,7 @@ static int ihid_goodix_vdd_notify(struct notifier_block *nb,
return ret;
}
static int i2c_hid_of_goodix_probe(struct i2c_client *client,
const struct i2c_device_id *id)
static int i2c_hid_of_goodix_probe(struct i2c_client *client)
{
struct i2c_hid_of_goodix *ihid_goodix;
int ret;
@ -167,7 +166,7 @@ static struct i2c_driver goodix_i2c_hid_ts_driver = {
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(goodix_i2c_hid_of_match),
},
.probe = i2c_hid_of_goodix_probe,
.probe_new = i2c_hid_of_goodix_probe,
.remove = i2c_hid_core_remove,
.shutdown = i2c_hid_core_shutdown,
};

5
drivers/hid/i2c-hid/i2c-hid-of.c
View file

@ -66,8 +66,7 @@ static void i2c_hid_of_power_down(struct i2chid_ops *ops)
ihid_of->supplies);
}
static int i2c_hid_of_probe(struct i2c_client *client,
const struct i2c_device_id *dev_id)
static int i2c_hid_of_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct i2c_hid_of *ihid_of;
@ -138,7 +137,7 @@ static struct i2c_driver i2c_hid_of_driver = {
.of_match_table = of_match_ptr(i2c_hid_of_match),
},
.probe = i2c_hid_of_probe,
.probe_new = i2c_hid_of_probe,
.remove = i2c_hid_core_remove,
.shutdown = i2c_hid_core_shutdown,
.id_table = i2c_hid_of_id_table,