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path: root/drivers/hwmon/adm1031.c
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Diffstat (limited to 'drivers/hwmon/adm1031.c')
-rw-r--r--drivers/hwmon/adm1031.c357
1 files changed, 162 insertions, 195 deletions
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
index a8a540ca8c34..a5818980dad7 100644
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -74,7 +74,8 @@ typedef u8 auto_chan_table_t[8][2];
/* Each client has this additional data */
struct adm1031_data {
- struct device *hwmon_dev;
+ struct i2c_client *client;
+ const struct attribute_group *groups[3];
struct mutex update_lock;
int chip_type;
char valid; /* !=0 if following fields are valid */
@@ -105,34 +106,6 @@ struct adm1031_data {
s8 temp_crit[3];
};
-static int adm1031_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int adm1031_detect(struct i2c_client *client,
- struct i2c_board_info *info);
-static void adm1031_init_client(struct i2c_client *client);
-static int adm1031_remove(struct i2c_client *client);
-static struct adm1031_data *adm1031_update_device(struct device *dev);
-
-static const struct i2c_device_id adm1031_id[] = {
- { "adm1030", adm1030 },
- { "adm1031", adm1031 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, adm1031_id);
-
-/* This is the driver that will be inserted */
-static struct i2c_driver adm1031_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "adm1031",
- },
- .probe = adm1031_probe,
- .remove = adm1031_remove,
- .id_table = adm1031_id,
- .detect = adm1031_detect,
- .address_list = normal_i2c,
-};
-
static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg)
{
return i2c_smbus_read_byte_data(client, reg);
@@ -144,6 +117,96 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
return i2c_smbus_write_byte_data(client, reg, value);
}
+static struct adm1031_data *adm1031_update_device(struct device *dev)
+{
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ unsigned long next_update;
+ int chan;
+
+ mutex_lock(&data->update_lock);
+
+ next_update = data->last_updated
+ + msecs_to_jiffies(data->update_interval);
+ if (time_after(jiffies, next_update) || !data->valid) {
+
+ dev_dbg(&client->dev, "Starting adm1031 update\n");
+ for (chan = 0;
+ chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) {
+ u8 oldh, newh;
+
+ oldh =
+ adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+ data->ext_temp[chan] =
+ adm1031_read_value(client, ADM1031_REG_EXT_TEMP);
+ newh =
+ adm1031_read_value(client, ADM1031_REG_TEMP(chan));
+ if (newh != oldh) {
+ data->ext_temp[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_EXT_TEMP);
+#ifdef DEBUG
+ oldh =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP(chan));
+
+ /* oldh is actually newer */
+ if (newh != oldh)
+ dev_warn(&client->dev,
+ "Remote temperature may be wrong.\n");
+#endif
+ }
+ data->temp[chan] = newh;
+
+ data->temp_offset[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_OFFSET(chan));
+ data->temp_min[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_MIN(chan));
+ data->temp_max[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_MAX(chan));
+ data->temp_crit[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_CRIT(chan));
+ data->auto_temp[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_AUTO_TEMP(chan));
+
+ }
+
+ data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1);
+ data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
+
+ data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
+ | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8);
+ if (data->chip_type == adm1030)
+ data->alarm &= 0xc0ff;
+
+ for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2);
+ chan++) {
+ data->fan_div[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_DIV(chan));
+ data->fan_min[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_MIN(chan));
+ data->fan[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_SPEED(chan));
+ data->pwm[chan] =
+ (adm1031_read_value(client,
+ ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
+ }
+ data->last_updated = jiffies;
+ data->valid = 1;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
#define TEMP_TO_REG(val) (((val) < 0 ? ((val - 500) / 1000) : \
((val + 500) / 1000)))
@@ -280,8 +343,8 @@ static ssize_t
set_fan_auto_channel(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
u8 reg;
@@ -355,8 +418,8 @@ static ssize_t
set_auto_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -365,6 +428,7 @@ set_auto_temp_min(struct device *dev, struct device_attribute *attr,
if (ret)
return ret;
+ val = clamp_val(val, 0, 127000);
mutex_lock(&data->update_lock);
data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
@@ -384,8 +448,8 @@ static ssize_t
set_auto_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -394,6 +458,7 @@ set_auto_temp_max(struct device *dev, struct device_attribute *attr,
if (ret)
return ret;
+ val = clamp_val(val, 0, 127000);
mutex_lock(&data->update_lock);
data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr],
data->pwm[nr]);
@@ -426,8 +491,8 @@ static ssize_t show_pwm(struct device *dev,
static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret, reg;
@@ -539,8 +604,8 @@ static ssize_t show_fan_min(struct device *dev,
static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -563,8 +628,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
u8 tmp;
@@ -665,8 +730,8 @@ static ssize_t set_temp_offset(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -686,8 +751,8 @@ static ssize_t set_temp_offset(struct device *dev,
static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -696,7 +761,7 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
if (ret)
return ret;
- val = clamp_val(val, -55000, nr == 0 ? 127750 : 127875);
+ val = clamp_val(val, -55000, 127000);
mutex_lock(&data->update_lock);
data->temp_min[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr),
@@ -707,8 +772,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -717,7 +782,7 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
if (ret)
return ret;
- val = clamp_val(val, -55000, nr == 0 ? 127750 : 127875);
+ val = clamp_val(val, -55000, 127000);
mutex_lock(&data->update_lock);
data->temp_max[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr),
@@ -728,8 +793,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -738,7 +803,7 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
if (ret)
return ret;
- val = clamp_val(val, -55000, nr == 0 ? 127750 : 127875);
+ val = clamp_val(val, -55000, 127000);
mutex_lock(&data->update_lock);
data->temp_crit[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr),
@@ -805,8 +870,7 @@ static const unsigned int update_intervals[] = {
static ssize_t show_update_interval(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", data->update_interval);
}
@@ -815,8 +879,8 @@ 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 adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int i, err;
u8 reg;
@@ -948,64 +1012,6 @@ static int adm1031_detect(struct i2c_client *client,
return 0;
}
-static int adm1031_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct adm1031_data *data;
- int err;
-
- data = devm_kzalloc(&client->dev, sizeof(struct adm1031_data),
- GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- i2c_set_clientdata(client, data);
- data->chip_type = id->driver_data;
- mutex_init(&data->update_lock);
-
- if (data->chip_type == adm1030)
- data->chan_select_table = &auto_channel_select_table_adm1030;
- else
- data->chan_select_table = &auto_channel_select_table_adm1031;
-
- /* Initialize the ADM1031 chip */
- adm1031_init_client(client);
-
- /* Register sysfs hooks */
- err = sysfs_create_group(&client->dev.kobj, &adm1031_group);
- if (err)
- return err;
-
- if (data->chip_type == adm1031) {
- err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt);
- if (err)
- goto exit_remove;
- }
-
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove;
- }
-
- return 0;
-
-exit_remove:
- sysfs_remove_group(&client->dev.kobj, &adm1031_group);
- sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
- return err;
-}
-
-static int adm1031_remove(struct i2c_client *client)
-{
- struct adm1031_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &adm1031_group);
- sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
- return 0;
-}
-
static void adm1031_init_client(struct i2c_client *client)
{
unsigned int read_val;
@@ -1037,96 +1043,57 @@ static void adm1031_init_client(struct i2c_client *client)
data->update_interval = update_intervals[i];
}
-static struct adm1031_data *adm1031_update_device(struct device *dev)
+static int adm1031_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
- unsigned long next_update;
- int chan;
-
- mutex_lock(&data->update_lock);
-
- next_update = data->last_updated
- + msecs_to_jiffies(data->update_interval);
- if (time_after(jiffies, next_update) || !data->valid) {
-
- dev_dbg(&client->dev, "Starting adm1031 update\n");
- for (chan = 0;
- chan < ((data->chip_type == adm1031) ? 3 : 2); chan++) {
- u8 oldh, newh;
-
- oldh =
- adm1031_read_value(client, ADM1031_REG_TEMP(chan));
- data->ext_temp[chan] =
- adm1031_read_value(client, ADM1031_REG_EXT_TEMP);
- newh =
- adm1031_read_value(client, ADM1031_REG_TEMP(chan));
- if (newh != oldh) {
- data->ext_temp[chan] =
- adm1031_read_value(client,
- ADM1031_REG_EXT_TEMP);
-#ifdef DEBUG
- oldh =
- adm1031_read_value(client,
- ADM1031_REG_TEMP(chan));
+ struct device *dev = &client->dev;
+ struct device *hwmon_dev;
+ struct adm1031_data *data;
- /* oldh is actually newer */
- if (newh != oldh)
- dev_warn(&client->dev,
- "Remote temperature may be wrong.\n");
-#endif
- }
- data->temp[chan] = newh;
+ data = devm_kzalloc(dev, sizeof(struct adm1031_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- data->temp_offset[chan] =
- adm1031_read_value(client,
- ADM1031_REG_TEMP_OFFSET(chan));
- data->temp_min[chan] =
- adm1031_read_value(client,
- ADM1031_REG_TEMP_MIN(chan));
- data->temp_max[chan] =
- adm1031_read_value(client,
- ADM1031_REG_TEMP_MAX(chan));
- data->temp_crit[chan] =
- adm1031_read_value(client,
- ADM1031_REG_TEMP_CRIT(chan));
- data->auto_temp[chan] =
- adm1031_read_value(client,
- ADM1031_REG_AUTO_TEMP(chan));
+ i2c_set_clientdata(client, data);
+ data->client = client;
+ data->chip_type = id->driver_data;
+ mutex_init(&data->update_lock);
- }
+ if (data->chip_type == adm1030)
+ data->chan_select_table = &auto_channel_select_table_adm1030;
+ else
+ data->chan_select_table = &auto_channel_select_table_adm1031;
- data->conf1 = adm1031_read_value(client, ADM1031_REG_CONF1);
- data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
+ /* Initialize the ADM1031 chip */
+ adm1031_init_client(client);
- data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
- | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8);
- if (data->chip_type == adm1030)
- data->alarm &= 0xc0ff;
+ /* sysfs hooks */
+ data->groups[0] = &adm1031_group;
+ if (data->chip_type == adm1031)
+ data->groups[1] = &adm1031_group_opt;
- for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2);
- chan++) {
- data->fan_div[chan] =
- adm1031_read_value(client,
- ADM1031_REG_FAN_DIV(chan));
- data->fan_min[chan] =
- adm1031_read_value(client,
- ADM1031_REG_FAN_MIN(chan));
- data->fan[chan] =
- adm1031_read_value(client,
- ADM1031_REG_FAN_SPEED(chan));
- data->pwm[chan] =
- (adm1031_read_value(client,
- ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
- }
- data->last_updated = jiffies;
- data->valid = 1;
- }
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+ data, data->groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
+}
- mutex_unlock(&data->update_lock);
+static const struct i2c_device_id adm1031_id[] = {
+ { "adm1030", adm1030 },
+ { "adm1031", adm1031 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adm1031_id);
- return data;
-}
+static struct i2c_driver adm1031_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "adm1031",
+ },
+ .probe = adm1031_probe,
+ .id_table = adm1031_id,
+ .detect = adm1031_detect,
+ .address_list = normal_i2c,
+};
module_i2c_driver(adm1031_driver);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-21 05:16:49 +0300