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path: root/drivers/hwmon/via686a.c
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Diffstat (limited to 'drivers/hwmon/via686a.c')
-rw-r--r--drivers/hwmon/via686a.c76
1 files changed, 31 insertions, 45 deletions
diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c
index 164d47948390..eb84997627c8 100644
--- a/drivers/hwmon/via686a.c
+++ b/drivers/hwmon/via686a.c
@@ -35,7 +35,9 @@
#include <linux/pci.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>
@@ -47,14 +49,10 @@ module_param(force_addr, ushort, 0);
MODULE_PARM_DESC(force_addr,
"Initialize the base address of the sensors");
-/* Addresses to scan.
+/* Device address
Note that we can't determine the ISA address until we have initialized
our module */
-static unsigned short normal_i2c[] = { I2C_CLIENT_END };
-static unsigned int normal_isa[] = { 0x0000, I2C_CLIENT_ISA_END };
-
-/* Insmod parameters */
-SENSORS_INSMOD_1(via686a);
+static unsigned short address;
/*
The Via 686a southbridge has a LM78-like chip integrated on the same IC.
@@ -297,6 +295,7 @@ static inline long TEMP_FROM_REG10(u16 val)
via686a client is allocated. */
struct via686a_data {
struct i2c_client client;
+ struct class_device *class_dev;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
@@ -315,8 +314,7 @@ struct via686a_data {
static struct pci_dev *s_bridge; /* pointer to the (only) via686a */
-static int via686a_attach_adapter(struct i2c_adapter *adapter);
-static int via686a_detect(struct i2c_adapter *adapter, int address, int kind);
+static int via686a_detect(struct i2c_adapter *adapter);
static int via686a_detach_client(struct i2c_client *client);
static inline int via686a_read_value(struct i2c_client *client, u8 reg)
@@ -576,22 +574,13 @@ static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static struct i2c_driver via686a_driver = {
.owner = THIS_MODULE,
.name = "via686a",
- .id = I2C_DRIVERID_VIA686A,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = via686a_attach_adapter,
+ .attach_adapter = via686a_detect,
.detach_client = via686a_detach_client,
};
/* This is called when the module is loaded */
-static int via686a_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_detect(adapter, &addr_data, via686a_detect);
-}
-
-static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
+static int via686a_detect(struct i2c_adapter *adapter)
{
struct i2c_client *new_client;
struct via686a_data *data;
@@ -599,13 +588,6 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
const char client_name[] = "via686a";
u16 val;
- /* Make sure we are probing the ISA bus!! */
- if (!i2c_is_isa_adapter(adapter)) {
- dev_err(&adapter->dev,
- "via686a_detect called for an I2C bus adapter?!?\n");
- return 0;
- }
-
/* 8231 requires multiple of 256, we enforce that on 686 as well */
if (force_addr)
address = force_addr & 0xFF00;
@@ -637,7 +619,7 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
if (!(data = kmalloc(sizeof(struct via686a_data), GFP_KERNEL))) {
err = -ENOMEM;
- goto ERROR0;
+ goto exit_release;
}
memset(data, 0, sizeof(struct via686a_data));
@@ -655,12 +637,18 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
- goto ERROR3;
+ goto exit_free;
/* Initialize the VIA686A chip */
via686a_init_client(new_client);
/* Register sysfs hooks */
+ data->class_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->class_dev)) {
+ err = PTR_ERR(data->class_dev);
+ goto exit_detach;
+ }
+
device_create_file(&new_client->dev, &dev_attr_in0_input);
device_create_file(&new_client->dev, &dev_attr_in1_input);
device_create_file(&new_client->dev, &dev_attr_in2_input);
@@ -695,25 +683,27 @@ static int via686a_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
-ERROR3:
+exit_detach:
+ i2c_detach_client(new_client);
+exit_free:
kfree(data);
-ERROR0:
+exit_release:
release_region(address, VIA686A_EXTENT);
return err;
}
static int via686a_detach_client(struct i2c_client *client)
{
+ struct via686a_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, VIA686A_EXTENT);
- kfree(i2c_get_clientdata(client));
+ kfree(data);
return 0;
}
@@ -810,29 +800,25 @@ static int __devinit via686a_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
u16 val;
- int addr = 0;
if (PCIBIOS_SUCCESSFUL !=
pci_read_config_word(dev, VIA686A_BASE_REG, &val))
return -ENODEV;
- addr = val & ~(VIA686A_EXTENT - 1);
- if (addr == 0 && force_addr == 0) {
+ address = val & ~(VIA686A_EXTENT - 1);
+ if (address == 0 && force_addr == 0) {
dev_err(&dev->dev, "base address not set - upgrade BIOS "
"or use force_addr=0xaddr\n");
return -ENODEV;
}
- if (force_addr)
- addr = force_addr; /* so detect will get called */
- if (!addr) {
+ if (!address) {
dev_err(&dev->dev, "No Via 686A sensors found.\n");
return -ENODEV;
}
- normal_isa[0] = addr;
s_bridge = pci_dev_get(dev);
- if (i2c_add_driver(&via686a_driver)) {
+ if (i2c_isa_add_driver(&via686a_driver)) {
pci_dev_put(s_bridge);
s_bridge = NULL;
}
@@ -859,7 +845,7 @@ static void __exit sm_via686a_exit(void)
{
pci_unregister_driver(&via686a_pci_driver);
if (s_bridge != NULL) {
- i2c_del_driver(&via686a_driver);
+ i2c_isa_del_driver(&via686a_driver);
pci_dev_put(s_bridge);
s_bridge = NULL;
}