]> err.no Git - linux-2.6/blobdiff - drivers/hwmon/smsc47m1.c
[PATCH] readahead: reset cache_hit earlier
[linux-2.6] / drivers / hwmon / smsc47m1.c
index b07d01ecd2e3a1647e52a66c2bd0ae4e8cbac9af..7e699a8ede262916369a88c57001f6de86eafbad 100644 (file)
 #include <linux/jiffies.h>
 #include <linux/i2c.h>
 #include <linux/i2c-isa.h>
-#include <linux/i2c-sensor.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, smsc47m1 };
-static struct i2c_address_data addr_data = {
-       .normal_i2c             = normal_i2c,
-       .normal_isa             = normal_isa,
-       .forces                 = forces,
-};
+static unsigned short address;
 
 /* Super-I/0 registers and commands */
 
@@ -125,9 +115,7 @@ struct smsc47m1_data {
 };
 
 
-static int smsc47m1_attach_adapter(struct i2c_adapter *adapter);
-static int smsc47m1_find(int *address);
-static int smsc47m1_detect(struct i2c_adapter *adapter, int address, int kind);
+static int smsc47m1_detect(struct i2c_adapter *adapter);
 static int smsc47m1_detach_client(struct i2c_client *client);
 
 static int smsc47m1_read_value(struct i2c_client *client, u8 reg);
@@ -140,9 +128,7 @@ static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
 static struct i2c_driver smsc47m1_driver = {
        .owner          = THIS_MODULE,
        .name           = "smsc47m1",
-       .id             = I2C_DRIVERID_SMSC47M1,
-       .flags          = I2C_DF_NOTIFY,
-       .attach_adapter = smsc47m1_attach_adapter,
+       .attach_adapter = smsc47m1_detect,
        .detach_client  = smsc47m1_detach_client,
 };
 
@@ -358,14 +344,7 @@ fan_present(2);
 
 static DEVICE_ATTR(alarms, S_IRUGO, get_alarms, NULL);
 
-static int smsc47m1_attach_adapter(struct i2c_adapter *adapter)
-{
-       if (!(adapter->class & I2C_CLASS_HWMON))
-               return 0;
-       return i2c_detect(adapter, &addr_data, smsc47m1_detect);
-}
-
-static int smsc47m1_find(int *address)
+static int __init smsc47m1_find(unsigned short *addr)
 {
        u8 val;
 
@@ -392,10 +371,10 @@ static int smsc47m1_find(int *address)
        }
 
        superio_select();
-       *address = (superio_inb(SUPERIO_REG_BASE) << 8)
-                |  superio_inb(SUPERIO_REG_BASE + 1);
+       *addr = (superio_inb(SUPERIO_REG_BASE) << 8)
+             |  superio_inb(SUPERIO_REG_BASE + 1);
        val = superio_inb(SUPERIO_REG_ACT);
-       if (*address == 0 || (val & 0x01) == 0) {
+       if (*addr == 0 || (val & 0x01) == 0) {
                printk(KERN_INFO "smsc47m1: Device is disabled, will not use\n");
                superio_exit();
                return -ENODEV;
@@ -405,17 +384,13 @@ static int smsc47m1_find(int *address)
        return 0;
 }
 
-static int smsc47m1_detect(struct i2c_adapter *adapter, int address, int kind)
+static int smsc47m1_detect(struct i2c_adapter *adapter)
 {
        struct i2c_client *new_client;
        struct smsc47m1_data *data;
        int err = 0;
        int fan1, fan2, pwm1, pwm2;
 
-       if (!i2c_is_isa_adapter(adapter)) {
-               return 0;
-       }
-
        if (!request_region(address, SMSC_EXTENT, smsc47m1_driver.name)) {
                dev_err(&adapter->dev, "Region 0x%x already in use!\n", address);
                return -EBUSY;
@@ -521,11 +496,8 @@ static int smsc47m1_detach_client(struct i2c_client *client)
 
        hwmon_device_unregister(data->class_dev);
 
-       if ((err = i2c_detach_client(client))) {
-               dev_err(&client->dev, "Client deregistration failed, "
-                       "client not detached.\n");
+       if ((err = i2c_detach_client(client)))
                return err;
-       }
 
        release_region(client->addr, SMSC_EXTENT);
        kfree(data);
@@ -589,7 +561,7 @@ static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
 
 static int __init sm_smsc47m1_init(void)
 {
-       if (smsc47m1_find(normal_isa)) {
+       if (smsc47m1_find(&address)) {
                return -ENODEV;
        }