diff options
Diffstat (limited to 'drivers/hwmon/smsc47m192.c')
| -rw-r--r-- | drivers/hwmon/smsc47m192.c | 423 |
1 files changed, 194 insertions, 229 deletions
diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c index efee4c59239f..21103af4e139 100644 --- a/drivers/hwmon/smsc47m192.c +++ b/drivers/hwmon/smsc47m192.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * smsc47m192.c - Support for hardware monitoring block of * SMSC LPC47M192 and compatible Super I/O chips @@ -5,20 +6,6 @@ * Copyright (C) 2006 Hartmut Rick <linux@rick.claranet.de> * * Derived from lm78.c and other chip drivers. - * - * 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/module.h> @@ -77,16 +64,17 @@ static inline unsigned int IN_FROM_REG(u8 reg, int n) static inline u8 IN_TO_REG(unsigned long val, int n) { - return clamp_val(SCALE(val, 192, nom_mv[n]), 0, 255); + val = clamp_val(val, 0, nom_mv[n] * 255 / 192); + return SCALE(val, 192, nom_mv[n]); } /* * TEMP: 0.001 degC units (-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) { - return clamp_val(SCALE(val, 1, 1000), -128000, 127000); + return SCALE(clamp_val(val, -128000, 127000), 1, 1000); } static inline int TEMP_FROM_REG(s8 val) @@ -95,9 +83,10 @@ static inline int TEMP_FROM_REG(s8 val) } struct smsc47m192_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; - char valid; /* !=0 if following fields are valid */ + bool valid; /* true if following fields are valid */ unsigned long last_updated; /* In jiffies */ u8 in[8]; /* Register value */ @@ -112,34 +101,73 @@ struct smsc47m192_data { u8 vrm; }; -static int smsc47m192_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int smsc47m192_detect(struct i2c_client *client, - struct i2c_board_info *info); -static int smsc47m192_remove(struct i2c_client *client); -static struct smsc47m192_data *smsc47m192_update_device(struct device *dev); +static struct smsc47m192_data *smsc47m192_update_device(struct device *dev) +{ + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; + int i, config; -static const struct i2c_device_id smsc47m192_id[] = { - { "smsc47m192", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, smsc47m192_id); + mutex_lock(&data->update_lock); -static struct i2c_driver smsc47m192_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "smsc47m192", - }, - .probe = smsc47m192_probe, - .remove = smsc47m192_remove, - .id_table = smsc47m192_id, - .detect = smsc47m192_detect, - .address_list = normal_i2c, -}; + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR); + + dev_dbg(&client->dev, "Starting smsc47m192 update\n"); + + for (i = 0; i <= 7; i++) { + data->in[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_IN(i)); + data->in_min[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_IN_MIN(i)); + data->in_max[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_IN_MAX(i)); + } + for (i = 0; i < 3; i++) { + data->temp[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP[i]); + data->temp_max[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP_MAX[i]); + data->temp_min[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP_MIN[i]); + } + for (i = 1; i < 3; i++) + data->temp_offset[i] = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_TEMP_OFFSET(i)); + /* + * first offset is temp_offset[0] if SFR bit 4 is set, + * temp_offset[1] otherwise + */ + if (sfr & 0x10) { + data->temp_offset[0] = data->temp_offset[1]; + data->temp_offset[1] = 0; + } else + data->temp_offset[0] = 0; + + data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID) + & 0x0f; + config = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_CONFIG); + if (config & 0x20) + data->vid |= (i2c_smbus_read_byte_data(client, + SMSC47M192_REG_VID4) & 0x01) << 4; + data->alarms = i2c_smbus_read_byte_data(client, + SMSC47M192_REG_ALARM1) | + (i2c_smbus_read_byte_data(client, + SMSC47M192_REG_ALARM2) << 8); + + data->last_updated = jiffies; + data->valid = true; + } + + mutex_unlock(&data->update_lock); + + return data; +} /* Voltages */ -static ssize_t show_in(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t in_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -147,8 +175,8 @@ static ssize_t show_in(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr], nr)); } -static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t in_min_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -156,8 +184,8 @@ static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr], nr)); } -static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t in_max_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -165,13 +193,13 @@ static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr], nr)); } -static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t in_min_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -187,13 +215,13 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, return count; } -static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t in_max_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -209,26 +237,34 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, return count; } -#define show_in_offset(offset) \ -static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ - show_in, NULL, offset); \ -static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ - show_in_min, set_in_min, offset); \ -static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ - show_in_max, set_in_max, offset); - -show_in_offset(0) -show_in_offset(1) -show_in_offset(2) -show_in_offset(3) -show_in_offset(4) -show_in_offset(5) -show_in_offset(6) -show_in_offset(7) +static SENSOR_DEVICE_ATTR_RO(in0_input, in, 0); +static SENSOR_DEVICE_ATTR_RW(in0_min, in_min, 0); +static SENSOR_DEVICE_ATTR_RW(in0_max, in_max, 0); +static SENSOR_DEVICE_ATTR_RO(in1_input, in, 1); +static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1); +static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1); +static SENSOR_DEVICE_ATTR_RO(in2_input, in, 2); +static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2); +static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2); +static SENSOR_DEVICE_ATTR_RO(in3_input, in, 3); +static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3); +static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3); +static SENSOR_DEVICE_ATTR_RO(in4_input, in, 4); +static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4); +static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4); +static SENSOR_DEVICE_ATTR_RO(in5_input, in, 5); +static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5); +static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5); +static SENSOR_DEVICE_ATTR_RO(in6_input, in, 6); +static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6); +static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6); +static SENSOR_DEVICE_ATTR_RO(in7_input, in, 7); +static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7); +static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7); /* Temperatures */ -static ssize_t show_temp(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t temp_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -236,8 +272,8 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); } -static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t temp_min_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -245,8 +281,8 @@ static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[nr])); } -static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t temp_max_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -254,13 +290,14 @@ static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[nr])); } -static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t temp_min_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -276,13 +313,14 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, return count; } -static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t temp_max_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -298,8 +336,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, return count; } -static ssize_t show_temp_offset(struct device *dev, struct device_attribute - *attr, char *buf) +static ssize_t temp_offset_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -307,13 +345,14 @@ static ssize_t show_temp_offset(struct device *dev, struct device_attribute return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_offset[nr])); } -static ssize_t set_temp_offset(struct device *dev, struct device_attribute - *attr, const char *buf, size_t count) +static ssize_t temp_offset_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); + struct smsc47m192_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR); long val; int err; @@ -344,38 +383,37 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute return count; } -#define show_temp_index(index) \ -static SENSOR_DEVICE_ATTR(temp##index##_input, S_IRUGO, \ - show_temp, NULL, index-1); \ -static SENSOR_DEVICE_ATTR(temp##index##_min, S_IRUGO | S_IWUSR, \ - show_temp_min, set_temp_min, index-1); \ -static SENSOR_DEVICE_ATTR(temp##index##_max, S_IRUGO | S_IWUSR, \ - show_temp_max, set_temp_max, index-1); \ -static SENSOR_DEVICE_ATTR(temp##index##_offset, S_IRUGO | S_IWUSR, \ - show_temp_offset, set_temp_offset, index-1); - -show_temp_index(1) -show_temp_index(2) -show_temp_index(3) +static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0); +static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0); +static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0); +static SENSOR_DEVICE_ATTR_RW(temp1_offset, temp_offset, 0); +static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1); +static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1); +static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1); +static SENSOR_DEVICE_ATTR_RW(temp2_offset, temp_offset, 1); +static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2); +static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2); +static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2); +static SENSOR_DEVICE_ATTR_RW(temp3_offset, temp_offset, 2); /* VID */ -static ssize_t show_vid(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t cpu0_vid_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct smsc47m192_data *data = smsc47m192_update_device(dev); return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); } -static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); +static DEVICE_ATTR_RO(cpu0_vid); -static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, +static ssize_t vrm_show(struct device *dev, struct device_attribute *attr, char *buf) { struct smsc47m192_data *data = dev_get_drvdata(dev); return sprintf(buf, "%d\n", data->vrm); } -static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t vrm_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct smsc47m192_data *data = dev_get_drvdata(dev); unsigned long val; @@ -384,15 +422,17 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, err = kstrtoul(buf, 10, &val); if (err) return err; + if (val > 255) + return -EINVAL; data->vrm = val; return count; } -static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm, set_vrm); +static DEVICE_ATTR_RW(vrm); /* Alarms */ -static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t alarm_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); int nr = sensor_attr->index; @@ -400,19 +440,19 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%u\n", (data->alarms & nr) ? 1 : 0); } -static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 0x0010); -static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 0x0020); -static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 0x0040); -static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 0x4000); -static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 0x8000); -static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0x0001); -static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 0x0002); -static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 0x0004); -static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 0x0008); -static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 0x0100); -static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 0x0200); -static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 0x0400); -static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 0x0800); +static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 0x0010); +static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 0x0020); +static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 0x0040); +static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 0x4000); +static SENSOR_DEVICE_ATTR_RO(temp3_fault, alarm, 0x8000); +static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0x0001); +static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 0x0002); +static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 0x0004); +static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 0x0008); +static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 0x0100); +static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 0x0200); +static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 0x0400); +static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 0x0800); static struct attribute *smsc47m192_attributes[] = { &sensor_dev_attr_in0_input.dev_attr.attr, @@ -542,132 +582,57 @@ static int smsc47m192_detect(struct i2c_client *client, return -ENODEV; } - strlcpy(info->type, "smsc47m192", I2C_NAME_SIZE); + strscpy(info->type, "smsc47m192", I2C_NAME_SIZE); return 0; } -static int smsc47m192_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int smsc47m192_probe(struct i2c_client *client) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct smsc47m192_data *data; int config; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct smsc47m192_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct smsc47m192_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; data->vrm = vid_which_vrm(); mutex_init(&data->update_lock); /* Initialize the SMSC47M192 chip */ smsc47m192_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group); - if (err) - return err; - + /* sysfs hooks */ + data->groups[0] = &smsc47m192_group; /* Pin 110 is either in4 (+12V) or VID4 */ config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG); - if (!(config & 0x20)) { - err = sysfs_create_group(&client->dev.kobj, - &smsc47m192_group_in4); - if (err) - goto exit_remove_files; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove_files; - } + if (!(config & 0x20)) + data->groups[1] = &smsc47m192_group_in4; - return 0; - -exit_remove_files: - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group); - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4); - return err; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, data->groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } -static int smsc47m192_remove(struct i2c_client *client) -{ - struct smsc47m192_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group); - sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4); - - return 0; -} - -static struct smsc47m192_data *smsc47m192_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct smsc47m192_data *data = i2c_get_clientdata(client); - int i, config; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) - || !data->valid) { - u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR); - - dev_dbg(&client->dev, "Starting smsc47m192 update\n"); - - for (i = 0; i <= 7; i++) { - data->in[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_IN(i)); - data->in_min[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_IN_MIN(i)); - data->in_max[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_IN_MAX(i)); - } - for (i = 0; i < 3; i++) { - data->temp[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP[i]); - data->temp_max[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP_MAX[i]); - data->temp_min[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP_MIN[i]); - } - for (i = 1; i < 3; i++) - data->temp_offset[i] = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_TEMP_OFFSET(i)); - /* - * first offset is temp_offset[0] if SFR bit 4 is set, - * temp_offset[1] otherwise - */ - if (sfr & 0x10) { - data->temp_offset[0] = data->temp_offset[1]; - data->temp_offset[1] = 0; - } else - data->temp_offset[0] = 0; - - data->vid = i2c_smbus_read_byte_data(client, SMSC47M192_REG_VID) - & 0x0f; - config = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_CONFIG); - if (config & 0x20) - data->vid |= (i2c_smbus_read_byte_data(client, - SMSC47M192_REG_VID4) & 0x01) << 4; - data->alarms = i2c_smbus_read_byte_data(client, - SMSC47M192_REG_ALARM1) | - (i2c_smbus_read_byte_data(client, - SMSC47M192_REG_ALARM2) << 8); - - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); +static const struct i2c_device_id smsc47m192_id[] = { + { "smsc47m192" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, smsc47m192_id); - return data; -} +static struct i2c_driver smsc47m192_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = "smsc47m192", + }, + .probe = smsc47m192_probe, + .id_table = smsc47m192_id, + .detect = smsc47m192_detect, + .address_list = normal_i2c, +}; module_i2c_driver(smsc47m192_driver); |