[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>
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
index 6bbfc8f..ea5934f 100644
--- a/drivers/hwmon/sis5595.c
+++ b/drivers/hwmon/sis5595.c
@@ -56,6 +56,8 @@
#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-sensor.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/jiffies.h>
#include <asm/io.h>
@@ -168,6 +170,7 @@
allocated. */
struct sis5595_data {
struct i2c_client client;
+ struct class_device *class_dev;
struct semaphore lock;
struct semaphore update_lock;
@@ -578,6 +581,12 @@
}
/* 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_in0_min);
device_create_file(&new_client->dev, &dev_attr_in0_max);
@@ -608,7 +617,9 @@
device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
}
return 0;
-
+
+exit_detach:
+ i2c_detach_client(new_client);
exit_free:
kfree(data);
exit_release:
@@ -619,8 +630,11 @@
static int sis5595_detach_client(struct i2c_client *client)
{
+ struct sis5595_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");
@@ -630,7 +644,7 @@
if (i2c_is_isa_client(client))
release_region(client->addr, SIS5595_EXTENT);
- kfree(i2c_get_clientdata(client));
+ kfree(data);
return 0;
}