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Date: Sun, 17 Mar 2013 18:45:57 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: lm-sensors@...sensors.org, linux-kernel@...r.kernel.org
Cc: Jean Delvare <khali@...ux-fr.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Guenter Roeck <linux@...ck-us.net>
Subject: [RFC PATCH 8/8] hwmon: (tmp401) Convert to devm_hwmon_device_register API
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
drivers/hwmon/tmp401.c | 184 ++++++++++++++++++++++++------------------------
1 file changed, 92 insertions(+), 92 deletions(-)
diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
index c85f696..69b5293 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -108,6 +108,7 @@ MODULE_DEVICE_TABLE(i2c, tmp401_id);
struct tmp401_data {
struct device *hwmon_dev;
+ const struct attribute_group *groups[3];
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
@@ -213,7 +214,7 @@ static struct tmp401_data *tmp401_update_device_reg16(
static struct tmp401_data *tmp401_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
+ struct i2c_client *client = to_i2c_client(dev->parent);
struct tmp401_data *data = i2c_get_clientdata(client);
mutex_lock(&data->update_lock);
@@ -329,6 +330,7 @@ static ssize_t show_status(struct device *dev,
static ssize_t store_temp_min(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
+ struct i2c_client *client = to_i2c_client(dev->parent);
int index = to_sensor_dev_attr(devattr)->index;
struct tmp401_data *data = tmp401_update_device(dev);
long val;
@@ -341,9 +343,9 @@ static ssize_t store_temp_min(struct device *dev, struct device_attribute
mutex_lock(&data->update_lock);
- i2c_smbus_write_byte_data(to_i2c_client(dev),
+ i2c_smbus_write_byte_data(client,
TMP401_TEMP_LOW_LIMIT_MSB_WRITE[index], reg >> 8);
- i2c_smbus_write_byte_data(to_i2c_client(dev),
+ i2c_smbus_write_byte_data(client,
TMP401_TEMP_LOW_LIMIT_LSB[index], reg & 0xFF);
data->temp_low[index] = reg;
@@ -356,6 +358,7 @@ static ssize_t store_temp_min(struct device *dev, struct device_attribute
static ssize_t store_temp_max(struct device *dev, struct device_attribute
*devattr, const char *buf, size_t count)
{
+ struct i2c_client *client = to_i2c_client(dev->parent);
int index = to_sensor_dev_attr(devattr)->index;
struct tmp401_data *data = tmp401_update_device(dev);
long val;
@@ -368,9 +371,9 @@ static ssize_t store_temp_max(struct device *dev, struct device_attribute
mutex_lock(&data->update_lock);
- i2c_smbus_write_byte_data(to_i2c_client(dev),
+ i2c_smbus_write_byte_data(client,
TMP401_TEMP_HIGH_LIMIT_MSB_WRITE[index], reg >> 8);
- i2c_smbus_write_byte_data(to_i2c_client(dev),
+ i2c_smbus_write_byte_data(client,
TMP401_TEMP_HIGH_LIMIT_LSB[index], reg & 0xFF);
data->temp_high[index] = reg;
@@ -395,7 +398,7 @@ static ssize_t store_temp_crit(struct device *dev, struct device_attribute
mutex_lock(&data->update_lock);
- i2c_smbus_write_byte_data(to_i2c_client(dev),
+ i2c_smbus_write_byte_data(to_i2c_client(dev->parent),
TMP401_TEMP_CRIT_LIMIT[index], reg);
data->temp_crit[index] = reg;
@@ -427,7 +430,7 @@ static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute
val = clamp_val(val, temp - 255000, temp);
reg = ((temp - val) + 500) / 1000;
- i2c_smbus_write_byte_data(to_i2c_client(dev),
+ i2c_smbus_write_byte_data(to_i2c_client(dev->parent),
TMP401_TEMP_CRIT_HYST, reg);
data->temp_crit_hyst = reg;
@@ -455,44 +458,68 @@ static ssize_t reset_temp_history(struct device *dev,
" supported. Use 1 to reset the history!\n", val);
return -EINVAL;
}
- i2c_smbus_write_byte_data(to_i2c_client(dev),
+ i2c_smbus_write_byte_data(to_i2c_client(dev->parent),
TMP411_TEMP_LOWEST_MSB[0], val);
return count;
}
-static struct sensor_device_attribute tmp401_attr[] = {
- SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_value, NULL, 0),
- SENSOR_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
- store_temp_min, 0),
- SENSOR_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
- store_temp_max, 0),
- SENSOR_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_crit,
- store_temp_crit, 0),
- SENSOR_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_crit_hyst,
- store_temp_crit_hyst, 0),
- SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_status, NULL,
- TMP401_STATUS_LOCAL_LOW),
- SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_status, NULL,
- TMP401_STATUS_LOCAL_HIGH),
- SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_status, NULL,
- TMP401_STATUS_LOCAL_CRIT),
- SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_value, NULL, 1),
- SENSOR_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
- store_temp_min, 1),
- SENSOR_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
- store_temp_max, 1),
- SENSOR_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit,
- store_temp_crit, 1),
- SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1),
- SENSOR_ATTR(temp2_fault, S_IRUGO, show_status, NULL,
- TMP401_STATUS_REMOTE_OPEN),
- SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_status, NULL,
- TMP401_STATUS_REMOTE_LOW),
- SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_status, NULL,
- TMP401_STATUS_REMOTE_HIGH),
- SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_status, NULL,
- TMP401_STATUS_REMOTE_CRIT),
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_value, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
+ store_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
+ store_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_crit,
+ store_temp_crit, 0);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO,
+ show_temp_crit_hyst, store_temp_crit_hyst, 0);
+static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_status, NULL,
+ TMP401_STATUS_LOCAL_LOW);
+static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_status, NULL,
+ TMP401_STATUS_LOCAL_HIGH);
+static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_status, NULL,
+ TMP401_STATUS_LOCAL_CRIT);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_value, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
+ store_temp_min, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
+ store_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit,
+ store_temp_crit, 1);
+static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst,
+ NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_status, NULL,
+ TMP401_STATUS_REMOTE_OPEN);
+static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_status, NULL,
+ TMP401_STATUS_REMOTE_LOW);
+static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_status, NULL,
+ TMP401_STATUS_REMOTE_HIGH);
+static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_status, NULL,
+ TMP401_STATUS_REMOTE_CRIT);
+
+static struct attribute *tmp401_attributes[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp2_fault.dev_attr.attr,
+ &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group tmp401_group = {
+ .attrs = tmp401_attributes,
};
/*
@@ -502,12 +529,24 @@ static struct sensor_device_attribute tmp401_attr[] = {
* minimum and maximum register reset for both the local
* and remote channels.
*/
-static struct sensor_device_attribute tmp411_attr[] = {
- SENSOR_ATTR(temp1_highest, S_IRUGO, show_temp_highest, NULL, 0),
- SENSOR_ATTR(temp1_lowest, S_IRUGO, show_temp_lowest, NULL, 0),
- SENSOR_ATTR(temp2_highest, S_IRUGO, show_temp_highest, NULL, 1),
- SENSOR_ATTR(temp2_lowest, S_IRUGO, show_temp_lowest, NULL, 1),
- SENSOR_ATTR(temp_reset_history, S_IWUSR, NULL, reset_temp_history, 0),
+static SENSOR_DEVICE_ATTR(temp1_highest, S_IRUGO, show_temp_highest, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_lowest, S_IRUGO, show_temp_lowest, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_highest, S_IRUGO, show_temp_highest, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_lowest, S_IRUGO, show_temp_lowest, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp_reset_history, S_IWUSR, NULL, reset_temp_history,
+ 0);
+
+static struct attribute *tmp411_attributes[] = {
+ &sensor_dev_attr_temp1_highest.dev_attr.attr,
+ &sensor_dev_attr_temp1_lowest.dev_attr.attr,
+ &sensor_dev_attr_temp2_highest.dev_attr.attr,
+ &sensor_dev_attr_temp2_lowest.dev_attr.attr,
+ &sensor_dev_attr_temp_reset_history.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group tmp411_group = {
+ .attrs = tmp411_attributes,
};
/*
@@ -577,30 +616,9 @@ static int tmp401_detect(struct i2c_client *client,
return 0;
}
-static int tmp401_remove(struct i2c_client *client)
-{
- struct tmp401_data *data = i2c_get_clientdata(client);
- int i;
-
- if (data->hwmon_dev)
- hwmon_device_unregister(data->hwmon_dev);
-
- for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++)
- device_remove_file(&client->dev, &tmp401_attr[i].dev_attr);
-
- if (data->kind == tmp411) {
- for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++)
- device_remove_file(&client->dev,
- &tmp411_attr[i].dev_attr);
- }
-
- return 0;
-}
-
static int tmp401_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- int i, err = 0;
struct tmp401_data *data;
const char *names[] = { "TMP401", "TMP411" };
@@ -617,37 +635,20 @@ static int tmp401_probe(struct i2c_client *client,
tmp401_init_client(client);
/* Register sysfs hooks */
- for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++) {
- err = device_create_file(&client->dev,
- &tmp401_attr[i].dev_attr);
- if (err)
- goto exit_remove;
- }
+ data->groups[0] = &tmp401_group;
/* Register additional tmp411 sysfs hooks */
- if (data->kind == tmp411) {
- for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++) {
- err = device_create_file(&client->dev,
- &tmp411_attr[i].dev_attr);
- if (err)
- goto exit_remove;
- }
- }
+ if (data->kind == tmp411)
+ data->groups[1] = &tmp411_group;
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- data->hwmon_dev = NULL;
- goto exit_remove;
- }
+ data->hwmon_dev = devm_hwmon_device_register(&client->dev,
+ data->groups, id->name);
+ if (IS_ERR(data->hwmon_dev))
+ return PTR_ERR(data->hwmon_dev);
dev_info(&client->dev, "Detected TI %s chip\n", names[data->kind]);
return 0;
-
-exit_remove:
- tmp401_remove(client);
- return err;
}
static struct i2c_driver tmp401_driver = {
@@ -656,7 +657,6 @@ static struct i2c_driver tmp401_driver = {
.name = "tmp401",
},
.probe = tmp401_probe,
- .remove = tmp401_remove,
.id_table = tmp401_id,
.detect = tmp401_detect,
.address_list = normal_i2c,
--
1.7.9.7
--
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