enum pmbus_fan_mode mode);
int pmbus_get_fan_rate_cached(struct i2c_client *client, int page, int id,
enum pmbus_fan_mode mode);
+int pmbus_lock_interruptible(struct i2c_client *client);
+void pmbus_unlock(struct i2c_client *client);
int pmbus_update_fan(struct i2c_client *client, int page, int id,
u8 config, u8 mask, u16 command);
struct dentry *pmbus_get_debugfs_dir(struct i2c_client *client);
{
int rc;
struct pmbus_debugfs_entry *entry = data;
+ struct pmbus_data *pdata = i2c_get_clientdata(entry->client);
+ rc = mutex_lock_interruptible(&pdata->update_lock);
+ if (rc)
+ return rc;
rc = _pmbus_read_byte_data(entry->client, entry->page, entry->reg);
+ mutex_unlock(&pdata->update_lock);
if (rc < 0)
return rc;
struct pmbus_debugfs_entry *entry = data;
struct pmbus_data *pdata = i2c_get_clientdata(entry->client);
+ rc = mutex_lock_interruptible(&pdata->update_lock);
+ if (rc)
+ return rc;
rc = pdata->read_status(entry->client, entry->page);
+ mutex_unlock(&pdata->update_lock);
if (rc < 0)
return rc;
{
int rc;
struct pmbus_debugfs_entry *entry = file->private_data;
+ struct pmbus_data *pdata = i2c_get_clientdata(entry->client);
char data[I2C_SMBUS_BLOCK_MAX + 2] = { 0 };
+ rc = mutex_lock_interruptible(&pdata->update_lock);
+ if (rc)
+ return rc;
rc = pmbus_read_block_data(entry->client, entry->page, entry->reg,
data);
+ mutex_unlock(&pdata->update_lock);
if (rc < 0)
return rc;
}
EXPORT_SYMBOL_NS_GPL(pmbus_get_debugfs_dir, PMBUS);
+int pmbus_lock_interruptible(struct i2c_client *client)
+{
+ struct pmbus_data *data = i2c_get_clientdata(client);
+
+ return mutex_lock_interruptible(&data->update_lock);
+}
+EXPORT_SYMBOL_NS_GPL(pmbus_lock_interruptible, PMBUS);
+
+void pmbus_unlock(struct i2c_client *client)
+{
+ struct pmbus_data *data = i2c_get_clientdata(client);
+
+ mutex_unlock(&data->update_lock);
+}
+EXPORT_SYMBOL_NS_GPL(pmbus_unlock, PMBUS);
+
static int __init pmbus_core_init(void)
{
pmbus_debugfs_dir = debugfs_create_dir("pmbus", NULL);