--- zzzz-none-000/linux-3.10.107/drivers/hwmon/jc42.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/hwmon/jc42.c 2021-02-04 17:41:59.000000000 +0000 @@ -65,6 +65,7 @@ /* Manufacturer IDs */ #define ADT_MANID 0x11d4 /* Analog Devices */ #define ATMEL_MANID 0x001f /* Atmel */ +#define ATMEL_MANID2 0x1114 /* Atmel */ #define MAX_MANID 0x004d /* Maxim */ #define IDT_MANID 0x00b3 /* IDT */ #define MCP_MANID 0x0054 /* Microchip */ @@ -82,12 +83,18 @@ #define AT30TS00_DEVID 0x8201 #define AT30TS00_DEVID_MASK 0xffff +#define AT30TSE004_DEVID 0x2200 +#define AT30TSE004_DEVID_MASK 0xffff + /* IDT */ -#define TS3000B3_DEVID 0x2903 /* Also matches TSE2002B3 */ -#define TS3000B3_DEVID_MASK 0xffff +#define TSE2004_DEVID 0x2200 +#define TSE2004_DEVID_MASK 0xff00 + +#define TS3000_DEVID 0x2900 /* Also matches TSE2002 */ +#define TS3000_DEVID_MASK 0xff00 -#define TS3000GB2_DEVID 0x2912 /* Also matches TSE2002GB2 */ -#define TS3000GB2_DEVID_MASK 0xffff +#define TS3001_DEVID 0x3000 +#define TS3001_DEVID_MASK 0xff00 /* Maxim */ #define MAX6604_DEVID 0x3e00 @@ -130,6 +137,9 @@ #define STTS2002_DEVID 0x0300 #define STTS2002_DEVID_MASK 0xffff +#define STTS2004_DEVID 0x2201 +#define STTS2004_DEVID_MASK 0xffff + #define STTS3000_DEVID 0x0200 #define STTS3000_DEVID_MASK 0xffff @@ -144,8 +154,10 @@ static struct jc42_chips jc42_chips[] = { { ADT_MANID, ADT7408_DEVID, ADT7408_DEVID_MASK }, { ATMEL_MANID, AT30TS00_DEVID, AT30TS00_DEVID_MASK }, - { IDT_MANID, TS3000B3_DEVID, TS3000B3_DEVID_MASK }, - { IDT_MANID, TS3000GB2_DEVID, TS3000GB2_DEVID_MASK }, + { ATMEL_MANID2, AT30TSE004_DEVID, AT30TSE004_DEVID_MASK }, + { IDT_MANID, TSE2004_DEVID, TSE2004_DEVID_MASK }, + { IDT_MANID, TS3000_DEVID, TS3000_DEVID_MASK }, + { IDT_MANID, TS3001_DEVID, TS3001_DEVID_MASK }, { MAX_MANID, MAX6604_DEVID, MAX6604_DEVID_MASK }, { MCP_MANID, MCP9804_DEVID, MCP9804_DEVID_MASK }, { MCP_MANID, MCP98242_DEVID, MCP98242_DEVID_MASK }, @@ -158,88 +170,42 @@ { STM_MANID, STTS424_DEVID, STTS424_DEVID_MASK }, { STM_MANID, STTS424E_DEVID, STTS424E_DEVID_MASK }, { STM_MANID, STTS2002_DEVID, STTS2002_DEVID_MASK }, + { STM_MANID, STTS2004_DEVID, STTS2004_DEVID_MASK }, { STM_MANID, STTS3000_DEVID, STTS3000_DEVID_MASK }, }; +enum temp_index { + t_input = 0, + t_crit, + t_min, + t_max, + t_num_temp +}; + +static const u8 temp_regs[t_num_temp] = { + [t_input] = JC42_REG_TEMP, + [t_crit] = JC42_REG_TEMP_CRITICAL, + [t_min] = JC42_REG_TEMP_LOWER, + [t_max] = JC42_REG_TEMP_UPPER, +}; + /* Each client has this additional data */ struct jc42_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; /* protect register access */ bool extended; /* true if extended range supported */ bool valid; unsigned long last_updated; /* In jiffies */ u16 orig_config; /* original configuration */ u16 config; /* current configuration */ - u16 temp_input; /* Temperatures */ - u16 temp_crit; - u16 temp_min; - u16 temp_max; -}; - -static int jc42_probe(struct i2c_client *client, - const struct i2c_device_id *id); -static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info); -static int jc42_remove(struct i2c_client *client); - -static struct jc42_data *jc42_update_device(struct device *dev); - -static const struct i2c_device_id jc42_id[] = { - { "jc42", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, jc42_id); - -#ifdef CONFIG_PM - -static int jc42_suspend(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct jc42_data *data = i2c_get_clientdata(client); - - data->config |= JC42_CFG_SHUTDOWN; - i2c_smbus_write_word_swapped(client, JC42_REG_CONFIG, data->config); - return 0; -} - -static int jc42_resume(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct jc42_data *data = i2c_get_clientdata(client); - - data->config &= ~JC42_CFG_SHUTDOWN; - i2c_smbus_write_word_swapped(client, JC42_REG_CONFIG, data->config); - return 0; -} - -static const struct dev_pm_ops jc42_dev_pm_ops = { - .suspend = jc42_suspend, - .resume = jc42_resume, -}; - -#define JC42_DEV_PM_OPS (&jc42_dev_pm_ops) -#else -#define JC42_DEV_PM_OPS NULL -#endif /* CONFIG_PM */ - -/* This is the driver that will be inserted */ -static struct i2c_driver jc42_driver = { - .class = I2C_CLASS_SPD, - .driver = { - .name = "jc42", - .pm = JC42_DEV_PM_OPS, - }, - .probe = jc42_probe, - .remove = jc42_remove, - .id_table = jc42_id, - .detect = jc42_detect, - .address_list = normal_i2c, + u16 temp[t_num_temp];/* Temperatures */ }; #define JC42_TEMP_MIN_EXTENDED (-40000) #define JC42_TEMP_MIN 0 #define JC42_TEMP_MAX 125000 -static u16 jc42_temp_to_reg(int temp, bool extended) +static u16 jc42_temp_to_reg(long temp, bool extended) { int ntemp = clamp_val(temp, extended ? JC42_TEMP_MIN_EXTENDED : @@ -251,90 +217,87 @@ static int jc42_temp_from_reg(s16 reg) { - reg &= 0x1fff; - - /* sign extend register */ - if (reg & 0x1000) - reg |= 0xf000; + reg = sign_extend32(reg, 12); /* convert from 0.0625 to 0.001 resolution */ return reg * 125 / 2; } -/* sysfs stuff */ +static struct jc42_data *jc42_update_device(struct device *dev) +{ + struct jc42_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; + struct jc42_data *ret = data; + int i, val; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { + for (i = 0; i < t_num_temp; i++) { + val = i2c_smbus_read_word_swapped(client, temp_regs[i]); + if (val < 0) { + ret = ERR_PTR(val); + goto abort; + } + data->temp[i] = val; + } + data->last_updated = jiffies; + data->valid = true; + } +abort: + mutex_unlock(&data->update_lock); + return ret; +} + +/* sysfs functions */ -/* read routines for temperature limits */ -#define show(value) \ -static ssize_t show_##value(struct device *dev, \ - struct device_attribute *attr, \ - char *buf) \ -{ \ - struct jc42_data *data = jc42_update_device(dev); \ - if (IS_ERR(data)) \ - return PTR_ERR(data); \ - return sprintf(buf, "%d\n", jc42_temp_from_reg(data->value)); \ -} - -show(temp_input); -show(temp_crit); -show(temp_min); -show(temp_max); - -/* read routines for hysteresis values */ -static ssize_t show_temp_crit_hyst(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, + char *buf) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct jc42_data *data = jc42_update_device(dev); - int temp, hyst; - if (IS_ERR(data)) return PTR_ERR(data); - - temp = jc42_temp_from_reg(data->temp_crit); - hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK) - >> JC42_CFG_HYST_SHIFT]; - return sprintf(buf, "%d\n", temp - hyst); + return sprintf(buf, "%d\n", + jc42_temp_from_reg(data->temp[attr->index])); } -static ssize_t show_temp_max_hyst(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t show_temp_hyst(struct device *dev, + struct device_attribute *devattr, char *buf) { + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct jc42_data *data = jc42_update_device(dev); int temp, hyst; if (IS_ERR(data)) return PTR_ERR(data); - temp = jc42_temp_from_reg(data->temp_max); + temp = jc42_temp_from_reg(data->temp[attr->index]); hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK) >> JC42_CFG_HYST_SHIFT]; return sprintf(buf, "%d\n", temp - hyst); } -/* write routines */ -#define set(value, reg) \ -static ssize_t set_##value(struct device *dev, \ - struct device_attribute *attr, \ - const char *buf, size_t count) \ -{ \ - struct i2c_client *client = to_i2c_client(dev); \ - struct jc42_data *data = i2c_get_clientdata(client); \ - int err, ret = count; \ - long val; \ - if (kstrtol(buf, 10, &val) < 0) \ - return -EINVAL; \ - mutex_lock(&data->update_lock); \ - data->value = jc42_temp_to_reg(val, data->extended); \ - err = i2c_smbus_write_word_swapped(client, reg, data->value); \ - if (err < 0) \ - ret = err; \ - mutex_unlock(&data->update_lock); \ - return ret; \ -} - -set(temp_min, JC42_REG_TEMP_LOWER); -set(temp_max, JC42_REG_TEMP_UPPER); -set(temp_crit, JC42_REG_TEMP_CRITICAL); +static ssize_t set_temp(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct jc42_data *data = dev_get_drvdata(dev); + int err, ret = count; + int nr = attr->index; + long val; + + if (kstrtol(buf, 10, &val) < 0) + return -EINVAL; + mutex_lock(&data->update_lock); + data->temp[nr] = jc42_temp_to_reg(val, data->extended); + err = i2c_smbus_write_word_swapped(data->client, temp_regs[nr], + data->temp[nr]); + if (err < 0) + ret = err; + mutex_unlock(&data->update_lock); + return ret; +} /* * JC42.4 compliant chips only support four hysteresis values. @@ -344,17 +307,19 @@ struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct jc42_data *data = i2c_get_clientdata(client); - unsigned long val; + struct jc42_data *data = dev_get_drvdata(dev); + long val; int diff, hyst; int err; int ret = count; - if (kstrtoul(buf, 10, &val) < 0) + if (kstrtol(buf, 10, &val) < 0) return -EINVAL; - diff = jc42_temp_from_reg(data->temp_crit) - val; + val = clamp_val(val, (data->extended ? JC42_TEMP_MIN_EXTENDED : + JC42_TEMP_MIN) - 6000, JC42_TEMP_MAX); + diff = jc42_temp_from_reg(data->temp[t_crit]) - val; + hyst = 0; if (diff > 0) { if (diff < 2250) @@ -368,7 +333,7 @@ mutex_lock(&data->update_lock); data->config = (data->config & ~JC42_CFG_HYST_MASK) | (hyst << JC42_CFG_HYST_SHIFT); - err = i2c_smbus_write_word_swapped(client, JC42_REG_CONFIG, + err = i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG, data->config); if (err < 0) ret = err; @@ -386,25 +351,20 @@ if (IS_ERR(data)) return PTR_ERR(data); - val = data->temp_input; + val = data->temp[t_input]; if (bit != JC42_ALARM_CRIT_BIT && (data->config & JC42_CFG_CRIT_ONLY)) val = 0; return sprintf(buf, "%u\n", (val >> bit) & 1); } -static DEVICE_ATTR(temp1_input, S_IRUGO, - show_temp_input, NULL); -static DEVICE_ATTR(temp1_crit, S_IRUGO, - show_temp_crit, set_temp_crit); -static DEVICE_ATTR(temp1_min, S_IRUGO, - show_temp_min, set_temp_min); -static DEVICE_ATTR(temp1_max, S_IRUGO, - show_temp_max, set_temp_max); - -static DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, - show_temp_crit_hyst, set_temp_crit_hyst); -static DEVICE_ATTR(temp1_max_hyst, S_IRUGO, - show_temp_max_hyst, NULL); +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input); +static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, set_temp, t_crit); +static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, set_temp, t_min); +static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, set_temp, t_max); + +static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_hyst, + set_temp_crit_hyst, t_crit); +static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max); static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, JC42_ALARM_CRIT_BIT); @@ -414,12 +374,12 @@ JC42_ALARM_MAX_BIT); static struct attribute *jc42_attributes[] = { - &dev_attr_temp1_input.attr, - &dev_attr_temp1_crit.attr, - &dev_attr_temp1_min.attr, - &dev_attr_temp1_max.attr, - &dev_attr_temp1_crit_hyst.attr, - &dev_attr_temp1_max_hyst.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, @@ -430,17 +390,16 @@ struct attribute *attr, int index) { struct device *dev = container_of(kobj, struct device, kobj); - struct i2c_client *client = to_i2c_client(dev); - struct jc42_data *data = i2c_get_clientdata(client); + struct jc42_data *data = dev_get_drvdata(dev); unsigned int config = data->config; bool readonly; - if (attr == &dev_attr_temp1_crit.attr) + if (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr) readonly = config & JC42_CFG_TCRIT_LOCK; - else if (attr == &dev_attr_temp1_min.attr || - attr == &dev_attr_temp1_max.attr) + else if (attr == &sensor_dev_attr_temp1_min.dev_attr.attr || + attr == &sensor_dev_attr_temp1_max.dev_attr.attr) readonly = config & JC42_CFG_EVENT_LOCK; - else if (attr == &dev_attr_temp1_crit_hyst.attr) + else if (attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr) readonly = config & (JC42_CFG_EVENT_LOCK | JC42_CFG_TCRIT_LOCK); else readonly = true; @@ -452,6 +411,7 @@ .attrs = jc42_attributes, .is_visible = jc42_attribute_mode, }; +__ATTRIBUTE_GROUPS(jc42); /* Return 0 if detection is successful, -ENODEV otherwise */ static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -487,14 +447,16 @@ static int jc42_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct jc42_data *data; - int config, cap, err; struct device *dev = &client->dev; + struct device *hwmon_dev; + struct jc42_data *data; + int config, cap; data = devm_kzalloc(dev, sizeof(struct jc42_data), GFP_KERNEL); if (!data) return -ENOMEM; + data->client = client; i2c_set_clientdata(client, data); mutex_init(&data->update_lock); @@ -515,29 +477,15 @@ } data->config = config; - /* Register sysfs hooks */ - err = sysfs_create_group(&dev->kobj, &jc42_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&dev->kobj, &jc42_group); - return err; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + jc42_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static int jc42_remove(struct i2c_client *client) { struct jc42_data *data = i2c_get_clientdata(client); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &jc42_group); /* Restore original configuration except hysteresis */ if ((data->config & ~JC42_CFG_HYST_MASK) != @@ -551,52 +499,56 @@ return 0; } -static struct jc42_data *jc42_update_device(struct device *dev) +#ifdef CONFIG_PM + +static int jc42_suspend(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct jc42_data *data = i2c_get_clientdata(client); - struct jc42_data *ret = data; - int val; + struct jc42_data *data = dev_get_drvdata(dev); - mutex_lock(&data->update_lock); + data->config |= JC42_CFG_SHUTDOWN; + i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG, + data->config); + return 0; +} - if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { - val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP); - if (val < 0) { - ret = ERR_PTR(val); - goto abort; - } - data->temp_input = val; +static int jc42_resume(struct device *dev) +{ + struct jc42_data *data = dev_get_drvdata(dev); - val = i2c_smbus_read_word_swapped(client, - JC42_REG_TEMP_CRITICAL); - if (val < 0) { - ret = ERR_PTR(val); - goto abort; - } - data->temp_crit = val; + data->config &= ~JC42_CFG_SHUTDOWN; + i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG, + data->config); + return 0; +} - val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_LOWER); - if (val < 0) { - ret = ERR_PTR(val); - goto abort; - } - data->temp_min = val; +static const struct dev_pm_ops jc42_dev_pm_ops = { + .suspend = jc42_suspend, + .resume = jc42_resume, +}; - val = i2c_smbus_read_word_swapped(client, JC42_REG_TEMP_UPPER); - if (val < 0) { - ret = ERR_PTR(val); - goto abort; - } - data->temp_max = val; +#define JC42_DEV_PM_OPS (&jc42_dev_pm_ops) +#else +#define JC42_DEV_PM_OPS NULL +#endif /* CONFIG_PM */ - data->last_updated = jiffies; - data->valid = true; - } -abort: - mutex_unlock(&data->update_lock); - return ret; -} +static const struct i2c_device_id jc42_id[] = { + { "jc42", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, jc42_id); + +static struct i2c_driver jc42_driver = { + .class = I2C_CLASS_SPD, + .driver = { + .name = "jc42", + .pm = JC42_DEV_PM_OPS, + }, + .probe = jc42_probe, + .remove = jc42_remove, + .id_table = jc42_id, + .detect = jc42_detect, + .address_list = normal_i2c, +}; module_i2c_driver(jc42_driver);