diff options
Diffstat (limited to 'drivers/hwmon/lm78.c')
| -rw-r--r-- | drivers/hwmon/lm78.c | 100 |
1 files changed, 16 insertions, 84 deletions
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index 9efadfc851bc..759661c7d480 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -108,7 +108,7 @@ static inline int FAN_FROM_REG(u8 val, int div) * TEMP: mC (-128C to +127C) * REG: 1C/bit, two's complement */ -static inline s8 TEMP_TO_REG(int val) +static inline s8 TEMP_TO_REG(long val) { int nval = clamp_val(val, -128000, 127000) ; return nval < 0 ? (nval - 500) / 1000 : (nval + 500) / 1000; @@ -123,7 +123,6 @@ static inline int TEMP_FROM_REG(s8 val) struct lm78_data { struct i2c_client *client; - struct device *hwmon_dev; struct mutex lock; enum chips type; @@ -468,7 +467,7 @@ static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11); static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); -static struct attribute *lm78_attributes[] = { +static struct attribute *lm78_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, @@ -519,9 +518,7 @@ static struct attribute *lm78_attributes[] = { NULL }; -static const struct attribute_group lm78_group = { - .attrs = lm78_attributes, -}; +ATTRIBUTE_GROUPS(lm78); /* * ISA related code @@ -533,19 +530,6 @@ static struct platform_device *pdev; static unsigned short isa_address = 0x290; -/* - * I2C devices get this name attribute automatically, but for ISA devices - * we must create it by ourselves. - */ -static ssize_t show_name(struct device *dev, struct device_attribute - *devattr, char *buf) -{ - struct lm78_data *data = dev_get_drvdata(dev); - - return sprintf(buf, "%s\n", data->name); -} -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); - static struct lm78_data *lm78_data_if_isa(void) { return pdev ? platform_get_drvdata(pdev) : NULL; @@ -661,46 +645,23 @@ static int lm78_i2c_detect(struct i2c_client *client, static int lm78_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct lm78_data *data; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct lm78_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); data->client = client; data->type = id->driver_data; /* Initialize the LM78 chip */ lm78_init_device(data); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &lm78_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto error; - } - - return 0; - -error: - sysfs_remove_group(&client->dev.kobj, &lm78_group); - return err; -} - -static int lm78_i2c_remove(struct i2c_client *client) -{ - struct lm78_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &lm78_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, lm78_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id lm78_i2c_id[] = { @@ -716,7 +677,6 @@ static struct i2c_driver lm78_driver = { .name = "lm78", }, .probe = lm78_i2c_probe, - .remove = lm78_i2c_remove, .id_table = lm78_i2c_id, .detect = lm78_i2c_detect, .address_list = normal_i2c, @@ -839,17 +799,18 @@ static struct lm78_data *lm78_update_device(struct device *dev) #ifdef CONFIG_ISA static int lm78_isa_probe(struct platform_device *pdev) { - int err; + struct device *dev = &pdev->dev; + struct device *hwmon_dev; struct lm78_data *data; struct resource *res; /* Reserve the ISA region */ res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!devm_request_region(&pdev->dev, res->start + LM78_ADDR_REG_OFFSET, + if (!devm_request_region(dev, res->start + LM78_ADDR_REG_OFFSET, 2, "lm78")) return -EBUSY; - data = devm_kzalloc(&pdev->dev, sizeof(struct lm78_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -868,37 +829,9 @@ static int lm78_isa_probe(struct platform_device *pdev) /* Initialize the LM78 chip */ lm78_init_device(data); - /* Register sysfs hooks */ - err = sysfs_create_group(&pdev->dev.kobj, &lm78_group); - if (err) - goto exit_remove_files; - err = device_create_file(&pdev->dev, &dev_attr_name); - if (err) - goto exit_remove_files; - - data->hwmon_dev = hwmon_device_register(&pdev->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } - - return 0; - - exit_remove_files: - sysfs_remove_group(&pdev->dev.kobj, &lm78_group); - device_remove_file(&pdev->dev, &dev_attr_name); - return err; -} - -static int lm78_isa_remove(struct platform_device *pdev) -{ - struct lm78_data *data = platform_get_drvdata(pdev); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&pdev->dev.kobj, &lm78_group); - device_remove_file(&pdev->dev, &dev_attr_name); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name, + data, lm78_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static struct platform_driver lm78_isa_driver = { @@ -907,7 +840,6 @@ static struct platform_driver lm78_isa_driver = { .name = "lm78", }, .probe = lm78_isa_probe, - .remove = lm78_isa_remove, }; /* return 1 if a supported chip is found, 0 otherwise */ |