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path: root/drivers/hwmon/smsc47b397.c
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Diffstat (limited to 'drivers/hwmon/smsc47b397.c')
-rw-r--r--drivers/hwmon/smsc47b397.c74
1 files changed, 31 insertions, 43 deletions
diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c
index fdeeb3ab6f2..7fe71576dea 100644
--- a/drivers/hwmon/smsc47b397.c
+++ b/drivers/hwmon/smsc47b397.c
@@ -31,23 +31,14 @@
#include <linux/ioport.h>
#include <linux/jiffies.h>
#include <linux/i2c.h>
-#include <linux/i2c-sensor.h>
+#include <linux/i2c-isa.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
#include <linux/init.h>
#include <asm/io.h>
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
/* Address is autodetected, there is no default value */
-static unsigned int normal_isa[] = { 0x0000, I2C_CLIENT_ISA_END };
-static struct i2c_force_data forces[] = {{NULL}};
-
-enum chips { any_chip, smsc47b397 };
-static struct i2c_address_data addr_data = {
- .normal_i2c = normal_i2c,
- .normal_isa = normal_isa,
- .probe = normal_i2c, /* cheat */
- .ignore = normal_i2c, /* cheat */
- .forces = forces,
-};
+static unsigned short address;
/* Super-I/0 registers and commands */
@@ -100,6 +91,7 @@ static u8 smsc47b397_reg_temp[] = {0x25, 0x26, 0x27, 0x80};
struct smsc47b397_data {
struct i2c_client client;
+ struct class_device *class_dev;
struct semaphore lock;
struct semaphore update_lock;
@@ -215,52 +207,40 @@ sysfs_fan(4);
#define device_create_file_fan(client, num) \
device_create_file(&client->dev, &dev_attr_fan##num##_input)
-static int smsc47b397_detect(struct i2c_adapter *adapter, int addr, int kind);
-
-static int smsc47b397_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_detect(adapter, &addr_data, smsc47b397_detect);
-}
-
static int smsc47b397_detach_client(struct i2c_client *client)
{
+ struct smsc47b397_data *data = i2c_get_clientdata(client);
int err;
- if ((err = i2c_detach_client(client))) {
- dev_err(&client->dev, "Client deregistration failed, "
- "client not detached.\n");
+ hwmon_device_unregister(data->class_dev);
+
+ if ((err = i2c_detach_client(client)))
return err;
- }
release_region(client->addr, SMSC_EXTENT);
- kfree(i2c_get_clientdata(client));
+ kfree(data);
return 0;
}
+static int smsc47b397_detect(struct i2c_adapter *adapter);
+
static struct i2c_driver smsc47b397_driver = {
.owner = THIS_MODULE,
.name = "smsc47b397",
- .id = I2C_DRIVERID_SMSC47B397,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = smsc47b397_attach_adapter,
+ .attach_adapter = smsc47b397_detect,
.detach_client = smsc47b397_detach_client,
};
-static int smsc47b397_detect(struct i2c_adapter *adapter, int addr, int kind)
+static int smsc47b397_detect(struct i2c_adapter *adapter)
{
struct i2c_client *new_client;
struct smsc47b397_data *data;
int err = 0;
- if (!i2c_is_isa_adapter(adapter)) {
- return 0;
- }
-
- if (!request_region(addr, SMSC_EXTENT, smsc47b397_driver.name)) {
- dev_err(&adapter->dev, "Region 0x%x already in use!\n", addr);
+ if (!request_region(address, SMSC_EXTENT, smsc47b397_driver.name)) {
+ dev_err(&adapter->dev, "Region 0x%x already in use!\n",
+ address);
return -EBUSY;
}
@@ -272,7 +252,7 @@ static int smsc47b397_detect(struct i2c_adapter *adapter, int addr, int kind)
new_client = &data->client;
i2c_set_clientdata(new_client, data);
- new_client->addr = addr;
+ new_client->addr = address;
init_MUTEX(&data->lock);
new_client->adapter = adapter;
new_client->driver = &smsc47b397_driver;
@@ -285,6 +265,12 @@ static int smsc47b397_detect(struct i2c_adapter *adapter, int addr, int kind)
if ((err = i2c_attach_client(new_client)))
goto error_free;
+ data->class_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto error_detach;
+ }
+
device_create_file_temp(new_client, 1);
device_create_file_temp(new_client, 2);
device_create_file_temp(new_client, 3);
@@ -297,14 +283,16 @@ static int smsc47b397_detect(struct i2c_adapter *adapter, int addr, int kind)
return 0;
+error_detach:
+ i2c_detach_client(new_client);
error_free:
kfree(data);
error_release:
- release_region(addr, SMSC_EXTENT);
+ release_region(address, SMSC_EXTENT);
return err;
}
-static int __init smsc47b397_find(unsigned int *addr)
+static int __init smsc47b397_find(unsigned short *addr)
{
u8 id, rev;
@@ -333,15 +321,15 @@ static int __init smsc47b397_init(void)
{
int ret;
- if ((ret = smsc47b397_find(normal_isa)))
+ if ((ret = smsc47b397_find(&address)))
return ret;
- return i2c_add_driver(&smsc47b397_driver);
+ return i2c_isa_add_driver(&smsc47b397_driver);
}
static void __exit smsc47b397_exit(void)
{
- i2c_del_driver(&smsc47b397_driver);
+ i2c_isa_del_driver(&smsc47b397_driver);
}
MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>");