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authorMark M. Hoffman <mhoffman@lightlink.com>2005-07-15 21:39:18 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2005-09-05 09:14:08 -0700
commit943b0830cebe4711354945ed3cb44e84152aaca0 (patch)
tree1963da8d8867069617404a8f92739035c6faca02 /drivers/hwmon/via686a.c
parent1236441f38b6a98caf4c7983e7efdecc2d1527b5 (diff)
downloadop-kernel-dev-943b0830cebe4711354945ed3cb44e84152aaca0.zip
op-kernel-dev-943b0830cebe4711354945ed3cb44e84152aaca0.tar.gz
[PATCH] I2C hwmon: add hwmon sysfs class to drivers
This patch modifies sensors chip drivers to make use of the new sysfs class "hwmon". Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/hwmon/via686a.c')
-rw-r--r--drivers/hwmon/via686a.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c
index 164d479..8eb9d08 100644
--- a/drivers/hwmon/via686a.c
+++ b/drivers/hwmon/via686a.c
@@ -36,6 +36,8 @@
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
#include <linux/init.h>
#include <asm/io.h>
@@ -297,6 +299,7 @@ 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 */
@@ -637,7 +640,7 @@ 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 +658,18 @@ 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);
@@ -695,17 +704,22 @@ 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;
+ hwmon_device_unregister(data->class_dev);
+
if ((err = i2c_detach_client(client))) {
dev_err(&client->dev,
"Client deregistration failed, client not detached.\n");
@@ -713,7 +727,7 @@ static int via686a_detach_client(struct i2c_client *client)
}
release_region(client->addr, VIA686A_EXTENT);
- kfree(i2c_get_clientdata(client));
+ kfree(data);
return 0;
}
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