diff options
Diffstat (limited to 'drivers/hwmon/lm73.c')
| -rw-r--r-- | drivers/hwmon/lm73.c | 61 |
1 files changed, 32 insertions, 29 deletions
diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c index 9653bb870a47..581b01572e1b 100644 --- a/drivers/hwmon/lm73.c +++ b/drivers/hwmon/lm73.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * LM73 Sensor driver * Based on LM75 @@ -9,10 +10,6 @@ * Adrien Demarez <adrien.demarez@bolloretelecom.eu> * Jeremy Laine <jeremy.laine@bolloretelecom.eu> * Chris Verges <kg4ysn@gmail.com> - * - * This software program is licensed subject to the GNU General Public License - * (GPL).Version 2,June 1991, available at - * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html */ #include <linux/module.h> @@ -62,8 +59,8 @@ struct lm73_data { /*-----------------------------------------------------------------------*/ -static ssize_t set_temp(struct device *dev, struct device_attribute *da, - const char *buf, size_t count) +static ssize_t temp_store(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct lm73_data *data = dev_get_drvdata(dev); @@ -81,7 +78,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da, return (err < 0) ? err : count; } -static ssize_t show_temp(struct device *dev, struct device_attribute *da, +static ssize_t temp_show(struct device *dev, struct device_attribute *da, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); @@ -95,11 +92,11 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *da, /* use integer division instead of equivalent right shift to guarantee arithmetic shift and preserve the sign */ temp = (((s16) err) * 250) / 32; - return scnprintf(buf, PAGE_SIZE, "%d\n", temp); + return sysfs_emit(buf, "%d\n", temp); } -static ssize_t set_convrate(struct device *dev, struct device_attribute *da, - const char *buf, size_t count) +static ssize_t convrate_store(struct device *dev, struct device_attribute *da, + const char *buf, size_t count) { struct lm73_data *data = dev_get_drvdata(dev); unsigned long convrate; @@ -133,17 +130,17 @@ static ssize_t set_convrate(struct device *dev, struct device_attribute *da, return count; } -static ssize_t show_convrate(struct device *dev, struct device_attribute *da, +static ssize_t convrate_show(struct device *dev, struct device_attribute *da, char *buf) { struct lm73_data *data = dev_get_drvdata(dev); int res; res = (data->ctrl & LM73_CTRL_RES_MASK) >> LM73_CTRL_RES_SHIFT; - return scnprintf(buf, PAGE_SIZE, "%hu\n", lm73_convrates[res]); + return sysfs_emit(buf, "%hu\n", lm73_convrates[res]); } -static ssize_t show_maxmin_alarm(struct device *dev, +static ssize_t maxmin_alarm_show(struct device *dev, struct device_attribute *da, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); @@ -157,7 +154,7 @@ static ssize_t show_maxmin_alarm(struct device *dev, data->ctrl = ctrl; mutex_unlock(&data->lock); - return scnprintf(buf, PAGE_SIZE, "%d\n", (ctrl >> attr->index) & 1); + return sysfs_emit(buf, "%d\n", (ctrl >> attr->index) & 1); abort: mutex_unlock(&data->lock); @@ -168,18 +165,14 @@ abort: /* sysfs attributes for hwmon */ -static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, - show_temp, set_temp, LM73_REG_MAX); -static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, - show_temp, set_temp, LM73_REG_MIN); -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, - show_temp, NULL, LM73_REG_INPUT); -static SENSOR_DEVICE_ATTR(update_interval, S_IWUSR | S_IRUGO, - show_convrate, set_convrate, 0); -static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, - show_maxmin_alarm, NULL, LM73_CTRL_HI_SHIFT); -static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, - show_maxmin_alarm, NULL, LM73_CTRL_LO_SHIFT); +static SENSOR_DEVICE_ATTR_RW(temp1_max, temp, LM73_REG_MAX); +static SENSOR_DEVICE_ATTR_RW(temp1_min, temp, LM73_REG_MIN); +static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, LM73_REG_INPUT); +static SENSOR_DEVICE_ATTR_RW(update_interval, convrate, 0); +static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, maxmin_alarm, + LM73_CTRL_HI_SHIFT); +static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, maxmin_alarm, + LM73_CTRL_LO_SHIFT); static struct attribute *lm73_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, @@ -197,7 +190,7 @@ ATTRIBUTE_GROUPS(lm73); /* device probe and removal */ static int -lm73_probe(struct i2c_client *client, const struct i2c_device_id *id) +lm73_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct device *hwmon_dev; @@ -227,7 +220,7 @@ lm73_probe(struct i2c_client *client, const struct i2c_device_id *id) } static const struct i2c_device_id lm73_ids[] = { - { "lm73", 0 }, + { "lm73" }, { /* LIST END */ } }; MODULE_DEVICE_TABLE(i2c, lm73_ids); @@ -264,15 +257,25 @@ static int lm73_detect(struct i2c_client *new_client, if (id < 0 || id != LM73_ID) return -ENODEV; - strlcpy(info->type, "lm73", I2C_NAME_SIZE); + strscpy(info->type, "lm73", I2C_NAME_SIZE); return 0; } +static const struct of_device_id lm73_of_match[] = { + { + .compatible = "ti,lm73", + }, + { }, +}; + +MODULE_DEVICE_TABLE(of, lm73_of_match); + static struct i2c_driver lm73_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "lm73", + .of_match_table = lm73_of_match, }, .probe = lm73_probe, .id_table = lm73_ids, |