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path: root/drivers/hwmon/lm63.c
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Diffstat (limited to 'drivers/hwmon/lm63.c')
-rw-r--r--drivers/hwmon/lm63.c157
1 files changed, 63 insertions, 94 deletions
diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
index b4ad598feb6c..848b9611151f 100644
--- a/drivers/hwmon/lm63.c
+++ b/drivers/hwmon/lm63.c
@@ -155,8 +155,9 @@ enum chips { lm63, lm64, lm96163 };
*/
struct lm63_data {
- struct device *hwmon_dev;
+ struct i2c_client *client;
struct mutex update_lock;
+ const struct attribute_group *groups[5];
char valid; /* zero until following fields are valid */
char lut_valid; /* zero until lut fields are valid */
unsigned long last_updated; /* in jiffies */
@@ -218,9 +219,9 @@ static inline int lut_temp_to_reg(struct lm63_data *data, long val)
* Update the lookup table register cache.
* client->update_lock must be held when calling this function.
*/
-static void lm63_update_lut(struct i2c_client *client)
+static void lm63_update_lut(struct lm63_data *data)
{
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct i2c_client *client = data->client;
int i;
if (time_after(jiffies, data->lut_last_updated + 5 * HZ) ||
@@ -241,8 +242,8 @@ static void lm63_update_lut(struct i2c_client *client)
static struct lm63_data *lm63_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long next_update;
mutex_lock(&data->update_lock);
@@ -310,7 +311,7 @@ static struct lm63_data *lm63_update_device(struct device *dev)
data->valid = 1;
}
- lm63_update_lut(client);
+ lm63_update_lut(data);
mutex_unlock(&data->update_lock);
@@ -321,18 +322,17 @@ static struct lm63_data *lm63_update_device(struct device *dev)
* Trip points in the lookup table should be in ascending order for both
* temperatures and PWM output values.
*/
-static int lm63_lut_looks_bad(struct i2c_client *client)
+static int lm63_lut_looks_bad(struct device *dev, struct lm63_data *data)
{
- struct lm63_data *data = i2c_get_clientdata(client);
int i;
mutex_lock(&data->update_lock);
- lm63_update_lut(client);
+ lm63_update_lut(data);
for (i = 1; i < data->lut_size; i++) {
if (data->pwm1[1 + i - 1] > data->pwm1[1 + i]
|| data->temp8[3 + i - 1] > data->temp8[3 + i]) {
- dev_warn(&client->dev,
+ dev_warn(dev,
"Lookup table doesn't look sane (check entries %d and %d)\n",
i, i + 1);
break;
@@ -358,8 +358,8 @@ static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
static ssize_t set_fan(struct device *dev, struct device_attribute *dummy,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int err;
@@ -399,8 +399,8 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = attr->index;
unsigned long val;
int err;
@@ -435,8 +435,8 @@ static ssize_t set_pwm1_enable(struct device *dev,
struct device_attribute *dummy,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int err;
@@ -450,7 +450,7 @@ static ssize_t set_pwm1_enable(struct device *dev,
* Only let the user switch to automatic mode if the lookup table
* looks sane.
*/
- if (val == 2 && lm63_lut_looks_bad(client))
+ if (val == 2 && lm63_lut_looks_bad(dev, data))
return -EPERM;
mutex_lock(&data->update_lock);
@@ -461,7 +461,7 @@ static ssize_t set_pwm1_enable(struct device *dev,
else
data->config_fan &= ~0x20;
i2c_smbus_write_byte_data(client, LM63_REG_CONFIG_FAN,
- data->config_fan);
+ data->config_fan);
mutex_unlock(&data->update_lock);
return count;
}
@@ -505,8 +505,8 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = attr->index;
long val;
int err;
@@ -579,8 +579,8 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
};
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
int nr = attr->index;
@@ -635,8 +635,8 @@ static ssize_t set_temp2_crit_hyst(struct device *dev,
struct device_attribute *dummy,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
long hyst;
@@ -657,11 +657,11 @@ static ssize_t set_temp2_crit_hyst(struct device *dev,
* Set conversion rate.
* client->update_lock must be held when calling this function.
*/
-static void lm63_set_convrate(struct i2c_client *client, struct lm63_data *data,
- unsigned int interval)
+static void lm63_set_convrate(struct lm63_data *data, unsigned int interval)
{
- int i;
+ struct i2c_client *client = data->client;
unsigned int update_interval;
+ int i;
/* Shift calculations to avoid rounding errors */
interval <<= 6;
@@ -689,8 +689,7 @@ static ssize_t set_update_interval(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
unsigned long val;
int err;
@@ -699,7 +698,7 @@ static ssize_t set_update_interval(struct device *dev,
return err;
mutex_lock(&data->update_lock);
- lm63_set_convrate(client, data, clamp_val(val, 0, 100000));
+ lm63_set_convrate(data, clamp_val(val, 0, 100000));
mutex_unlock(&data->update_lock);
return count;
@@ -708,8 +707,7 @@ static ssize_t set_update_interval(struct device *dev,
static ssize_t show_type(struct device *dev, struct device_attribute *attr,
char *buf)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
return sprintf(buf, data->trutherm ? "1\n" : "2\n");
}
@@ -717,8 +715,8 @@ static ssize_t show_type(struct device *dev, struct device_attribute *attr,
static ssize_t set_type(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int ret;
u8 reg;
@@ -915,6 +913,15 @@ static struct attribute *lm63_attributes[] = {
NULL
};
+static struct attribute *lm63_attributes_temp2_type[] = {
+ &dev_attr_temp2_type.attr,
+ NULL
+};
+
+static const struct attribute_group lm63_group_temp2_type = {
+ .attrs = lm63_attributes_temp2_type,
+};
+
static struct attribute *lm63_attributes_extra_lut[] = {
&sensor_dev_attr_pwm1_auto_point9_pwm.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point9_temp.dev_attr.attr,
@@ -946,8 +953,7 @@ static umode_t lm63_attribute_mode(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
- struct i2c_client *client = to_i2c_client(dev);
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct lm63_data *data = dev_get_drvdata(dev);
if (attr == &sensor_dev_attr_temp2_crit.dev_attr.attr
&& (data->kind == lm64 ||
@@ -1026,9 +1032,10 @@ static int lm63_detect(struct i2c_client *client,
* Ideally we shouldn't have to initialize anything, since the BIOS
* should have taken care of everything
*/
-static void lm63_init_client(struct i2c_client *client)
+static void lm63_init_client(struct lm63_data *data)
{
- struct lm63_data *data = i2c_get_clientdata(client);
+ struct i2c_client *client = data->client;
+ struct device *dev = &client->dev;
u8 convrate;
data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1);
@@ -1037,7 +1044,7 @@ static void lm63_init_client(struct i2c_client *client)
/* Start converting if needed */
if (data->config & 0x40) { /* standby */
- dev_dbg(&client->dev, "Switching to operational mode\n");
+ dev_dbg(dev, "Switching to operational mode\n");
data->config &= 0xA7;
i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1,
data->config);
@@ -1090,13 +1097,13 @@ static void lm63_init_client(struct i2c_client *client)
/* Show some debug info about the LM63 configuration */
if (data->kind == lm63)
- dev_dbg(&client->dev, "Alert/tach pin configured for %s\n",
+ dev_dbg(dev, "Alert/tach pin configured for %s\n",
(data->config & 0x04) ? "tachometer input" :
"alert output");
- dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n",
+ dev_dbg(dev, "PWM clock %s kHz, output frequency %u Hz\n",
(data->config_fan & 0x08) ? "1.4" : "360",
((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq);
- dev_dbg(&client->dev, "PWM output active %s, %s mode\n",
+ dev_dbg(dev, "PWM output active %s, %s mode\n",
(data->config_fan & 0x10) ? "low" : "high",
(data->config_fan & 0x20) ? "manual" : "auto");
}
@@ -1104,15 +1111,16 @@ static void lm63_init_client(struct i2c_client *client)
static int lm63_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct device *dev = &client->dev;
+ struct device *hwmon_dev;
struct lm63_data *data;
- int err;
+ int groups = 0;
- data = devm_kzalloc(&client->dev, sizeof(struct lm63_data), GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(struct lm63_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- i2c_set_clientdata(client, data);
- data->valid = 0;
+ data->client = client;
mutex_init(&data->update_lock);
/* Set the device type */
@@ -1121,59 +1129,21 @@ static int lm63_probe(struct i2c_client *client,
data->temp2_offset = 16000;
/* Initialize chip */
- lm63_init_client(client);
+ lm63_init_client(data);
/* Register sysfs hooks */
- err = sysfs_create_group(&client->dev.kobj, &lm63_group);
- if (err)
- return err;
- if (data->config & 0x04) { /* tachometer enabled */
- err = sysfs_create_group(&client->dev.kobj, &lm63_group_fan1);
- if (err)
- goto exit_remove_files;
- }
- if (data->kind == lm96163) {
- err = device_create_file(&client->dev, &dev_attr_temp2_type);
- if (err)
- goto exit_remove_files;
-
- err = sysfs_create_group(&client->dev.kobj,
- &lm63_group_extra_lut);
- if (err)
- goto exit_remove_files;
- }
-
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove_files;
- }
+ data->groups[groups++] = &lm63_group;
+ if (data->config & 0x04) /* tachometer enabled */
+ data->groups[groups++] = &lm63_group_fan1;
- return 0;
-
-exit_remove_files:
- sysfs_remove_group(&client->dev.kobj, &lm63_group);
- sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
if (data->kind == lm96163) {
- device_remove_file(&client->dev, &dev_attr_temp2_type);
- sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut);
+ data->groups[groups++] = &lm63_group_temp2_type;
+ data->groups[groups++] = &lm63_group_extra_lut;
}
- return err;
-}
-
-static int lm63_remove(struct i2c_client *client)
-{
- struct lm63_data *data = i2c_get_clientdata(client);
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &lm63_group);
- sysfs_remove_group(&client->dev.kobj, &lm63_group_fan1);
- if (data->kind == lm96163) {
- device_remove_file(&client->dev, &dev_attr_temp2_type);
- sysfs_remove_group(&client->dev.kobj, &lm63_group_extra_lut);
- }
-
- return 0;
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+ data, data->groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
}
/*
@@ -1194,7 +1164,6 @@ static struct i2c_driver lm63_driver = {
.name = "lm63",
},
.probe = lm63_probe,
- .remove = lm63_remove,
.id_table = lm63_id,
.detect = lm63_detect,
.address_list = normal_i2c,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.