diff options
Diffstat (limited to 'drivers/hwmon/ltc4151.c')
| -rw-r--r-- | drivers/hwmon/ltc4151.c | 38 |
1 files changed, 10 insertions, 28 deletions
diff --git a/drivers/hwmon/ltc4151.c b/drivers/hwmon/ltc4151.c index b904cb547ffb..fa66eda78efe 100644 --- a/drivers/hwmon/ltc4151.c +++ b/drivers/hwmon/ltc4151.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for Linear Technology LTC4151 High Voltage I2C Current * and Voltage Monitor @@ -11,21 +12,6 @@ * Copyright (C) 2010 Ericsson AB. * * Datasheet: http://www.linear.com/docs/Datasheet/4151fc.pdf - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * */ #include <linux/kernel.h> @@ -91,7 +77,7 @@ static struct ltc4151_data *ltc4151_update_device(struct device *dev) data->regs[i] = val; } data->last_updated = jiffies; - data->valid = 1; + data->valid = true; } abort: mutex_unlock(&data->update_lock); @@ -131,7 +117,7 @@ static int ltc4151_get_value(struct ltc4151_data *data, u8 reg) return val; } -static ssize_t ltc4151_show_value(struct device *dev, +static ssize_t ltc4151_value_show(struct device *dev, struct device_attribute *da, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); @@ -142,20 +128,17 @@ static ssize_t ltc4151_show_value(struct device *dev, return PTR_ERR(data); value = ltc4151_get_value(data, attr->index); - return snprintf(buf, PAGE_SIZE, "%d\n", value); + return sysfs_emit(buf, "%d\n", value); } /* * Input voltages. */ -static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4151_show_value, NULL, - LTC4151_VIN_H); -static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4151_show_value, NULL, - LTC4151_ADIN_H); +static SENSOR_DEVICE_ATTR_RO(in1_input, ltc4151_value, LTC4151_VIN_H); +static SENSOR_DEVICE_ATTR_RO(in2_input, ltc4151_value, LTC4151_ADIN_H); /* Currents (via sense resistor) */ -static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4151_show_value, NULL, - LTC4151_SENSE_H); +static SENSOR_DEVICE_ATTR_RO(curr1_input, ltc4151_value, LTC4151_SENSE_H); /* * Finally, construct an array of pointers to members of the above objects, @@ -171,8 +154,7 @@ static struct attribute *ltc4151_attrs[] = { }; ATTRIBUTE_GROUPS(ltc4151); -static int ltc4151_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int ltc4151_probe(struct i2c_client *client) { struct i2c_adapter *adapter = client->adapter; struct device *dev = &client->dev; @@ -206,12 +188,12 @@ static int ltc4151_probe(struct i2c_client *client, } static const struct i2c_device_id ltc4151_id[] = { - { "ltc4151", 0 }, + { "ltc4151" }, { } }; MODULE_DEVICE_TABLE(i2c, ltc4151_id); -static const struct of_device_id ltc4151_match[] = { +static const struct of_device_id __maybe_unused ltc4151_match[] = { { .compatible = "lltc,ltc4151" }, {}, }; |