X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fhwmon%2Fthmc50.c;h=76a3859c3fbeadd95b8a7af0c1b2c40e4cc7f860;hb=3cb2cea15e707dd030b3293d6d08183da369d291;hp=c920f394a5c266f294c1dbef8d37ccf73916c484;hpb=dcf3b5fb7fb6e1b56bfaf705e665b04870213768;p=linux-2.6

diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c
index c920f394a5..76a3859c3f 100644
--- a/drivers/hwmon/thmc50.c
+++ b/drivers/hwmon/thmc50.c
@@ -32,7 +32,7 @@
 MODULE_LICENSE("GPL");
 
 /* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
 
 /* Insmod parameters */
 I2C_CLIENT_INSMOD_2(thmc50, adm1022);
@@ -47,21 +47,21 @@ I2C_CLIENT_MODULE_PARM(adm1022_temp3, "List of adapter,address pairs "
 #define THMC50_REG_DIE_CODE			0x3F
 #define THMC50_REG_ANALOG_OUT			0x19
 /*
- * We use mirror status register for reading alarms
- * so ACPI can use the primary status register.
+ * The mirror status register cannot be used as
+ * reading it does not clear alarms.
  */
-#define THMC50_REG_INTR_MIRROR			0x4C
+#define THMC50_REG_INTR				0x41
 
-const static u8 THMC50_REG_TEMP[] = { 0x27, 0x26, 0x20 };
-const static u8 THMC50_REG_TEMP_MIN[] = { 0x3A, 0x38, 0x2C };
-const static u8 THMC50_REG_TEMP_MAX[] = { 0x39, 0x37, 0x2B };
+static const u8 THMC50_REG_TEMP[] = { 0x27, 0x26, 0x20 };
+static const u8 THMC50_REG_TEMP_MIN[] = { 0x3A, 0x38, 0x2C };
+static const u8 THMC50_REG_TEMP_MAX[] = { 0x39, 0x37, 0x2B };
 
 #define THMC50_REG_CONF_nFANOFF			0x20
 
 /* Each client has this additional data */
 struct thmc50_data {
 	struct i2c_client client;
-	struct class_device *class_dev;
+	struct device *hwmon_dev;
 
 	struct mutex update_lock;
 	enum chips type;
@@ -237,7 +237,7 @@ static const struct attribute_group thmc50_group = {
 };
 
 /* for ADM1022 3rd temperature mode */
-static struct attribute *adm1022_attributes[] = {
+static struct attribute *temp3_attributes[] = {
 	&sensor_dev_attr_temp3_max.dev_attr.attr,
 	&sensor_dev_attr_temp3_min.dev_attr.attr,
 	&sensor_dev_attr_temp3_input.dev_attr.attr,
@@ -246,8 +246,8 @@ static struct attribute *adm1022_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group adm1022_group = {
-	.attrs = adm1022_attributes,
+static const struct attribute_group temp3_group = {
+	.attrs = temp3_attributes,
 };
 
 static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
@@ -259,7 +259,7 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
 	struct thmc50_data *data;
 	struct device *dev;
 	int err = 0;
-	const char *type_name = "";
+	const char *type_name;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
 		pr_debug("thmc50: detect failed, "
@@ -309,13 +309,9 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
 		pr_debug("thmc50: Detection of THMC50/ADM1022 failed\n");
 		goto exit_free;
 	}
-	pr_debug("thmc50: Detected %s (version %x, revision %x)\n",
-		 type_name, (revision >> 4) - 0xc, revision & 0xf);
 	data->type = kind;
 
-	if (kind == thmc50)
-		type_name = "thmc50";
-	else if (kind == adm1022) {
+	if (kind == adm1022) {
 		int id = i2c_adapter_id(client->adapter);
 		int i;
 
@@ -328,7 +324,11 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
 				data->has_temp3 = 1;
 				break;
 			}
+	} else {
+		type_name = "thmc50";
 	}
+	pr_debug("thmc50: Detected %s (version %x, revision %x)\n",
+		 type_name, (revision >> 4) - 0xc, revision & 0xf);
 
 	/* Fill in the remaining client fields & put it into the global list */
 	strlcpy(client->name, type_name, I2C_NAME_SIZE);
@@ -345,23 +345,23 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
 		goto exit_detach;
 
 	/* Register ADM1022 sysfs hooks */
-	if (data->type == adm1022)
+	if (data->has_temp3)
 		if ((err = sysfs_create_group(&client->dev.kobj,
-					      &adm1022_group)))
+					      &temp3_group)))
 			goto exit_remove_sysfs_thmc50;
 
 	/* Register a new directory entry with module sensors */
-	data->class_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->class_dev)) {
-		err = PTR_ERR(data->class_dev);
+	data->hwmon_dev = hwmon_device_register(&client->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
 		goto exit_remove_sysfs;
 	}
 
 	return 0;
 
 exit_remove_sysfs:
-	if (data->type == adm1022)
-		sysfs_remove_group(&client->dev.kobj, &adm1022_group);
+	if (data->has_temp3)
+		sysfs_remove_group(&client->dev.kobj, &temp3_group);
 exit_remove_sysfs_thmc50:
 	sysfs_remove_group(&client->dev.kobj, &thmc50_group);
 exit_detach:
@@ -384,10 +384,10 @@ static int thmc50_detach_client(struct i2c_client *client)
 	struct thmc50_data *data = i2c_get_clientdata(client);
 	int err;
 
-	hwmon_device_unregister(data->class_dev);
+	hwmon_device_unregister(data->hwmon_dev);
 	sysfs_remove_group(&client->dev.kobj, &thmc50_group);
-	if (data->type == adm1022)
-		sysfs_remove_group(&client->dev.kobj, &adm1022_group);
+	if (data->has_temp3)
+		sysfs_remove_group(&client->dev.kobj, &temp3_group);
 
 	if ((err = i2c_detach_client(client)))
 		return err;
@@ -441,7 +441,7 @@ static struct thmc50_data *thmc50_update_device(struct device *dev)
 		data->analog_out =
 		    i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
 		data->alarms =
-		    i2c_smbus_read_byte_data(client, THMC50_REG_INTR_MIRROR);
+		    i2c_smbus_read_byte_data(client, THMC50_REG_INTR);
 		data->last_updated = jiffies;
 		data->valid = 1;
 	}