diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/lm90.c | 811 |
1 files changed, 435 insertions, 376 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 496e771b363f..322ed9272811 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -89,7 +89,6 @@ #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> -#include <linux/hwmon-sysfs.h> #include <linux/hwmon.h> #include <linux/err.h> #include <linux/mutex.h> @@ -326,7 +325,7 @@ static const struct lm90_params lm90_params[] = { .alert_alarms = 0x7c, .max_convrate = 9, .reg_local_ext = TMP451_REG_R_LOCAL_TEMPL, - } + }, }; /* @@ -365,7 +364,10 @@ enum lm90_temp11_reg_index { struct lm90_data { struct i2c_client *client; - const struct attribute_group *groups[6]; + u32 channel_config[4]; + struct hwmon_channel_info temp_info; + const struct hwmon_channel_info *info[3]; + struct hwmon_chip_info chip; struct mutex update_lock; bool valid; /* true if register values are valid */ unsigned long last_updated; /* in jiffies */ @@ -489,11 +491,11 @@ static inline int lm90_select_remote_channel(struct i2c_client *client, * client->update_lock must be held when calling this function (unless we are * in detection or initialization steps). */ -static void lm90_set_convrate(struct i2c_client *client, struct lm90_data *data, - unsigned int interval) +static int lm90_set_convrate(struct i2c_client *client, struct lm90_data *data, + unsigned int interval) { - int i; unsigned int update_interval; + int i, err; /* Shift calculations to avoid rounding errors */ interval <<= 6; @@ -504,8 +506,9 @@ static void lm90_set_convrate(struct i2c_client *client, struct lm90_data *data, if (interval >= update_interval * 3 / 4) break; - i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE, i); + err = i2c_smbus_write_byte_data(client, LM90_REG_W_CONVRATE, i); data->update_interval = DIV_ROUND_CLOSEST(update_interval, 64); + return err; } static int lm90_update_limits(struct device *dev) @@ -604,19 +607,17 @@ static int lm90_update_limits(struct device *dev) return 0; } -static struct lm90_data *lm90_update_device(struct device *dev) +static int lm90_update_device(struct device *dev) { struct lm90_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; unsigned long next_update; - int val = 0; - - mutex_lock(&data->update_lock); + int val; if (!data->valid) { val = lm90_update_limits(dev); if (val < 0) - goto error; + return val; } next_update = data->last_updated + @@ -628,53 +629,55 @@ static struct lm90_data *lm90_update_device(struct device *dev) val = lm90_read_reg(client, LM90_REG_R_LOCAL_LOW); if (val < 0) - goto error; + return val; data->temp8[LOCAL_LOW] = val; val = lm90_read_reg(client, LM90_REG_R_LOCAL_HIGH); if (val < 0) - goto error; + return val; data->temp8[LOCAL_HIGH] = val; if (data->reg_local_ext) { val = lm90_read16(client, LM90_REG_R_LOCAL_TEMP, data->reg_local_ext); if (val < 0) - goto error; + return val; data->temp11[LOCAL_TEMP] = val; } else { val = lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP); if (val < 0) - goto error; + return val; data->temp11[LOCAL_TEMP] = val << 8; } val = lm90_read16(client, LM90_REG_R_REMOTE_TEMPH, LM90_REG_R_REMOTE_TEMPL); if (val < 0) - goto error; + return val; data->temp11[REMOTE_TEMP] = val; val = lm90_read_reg(client, LM90_REG_R_STATUS); if (val < 0) - goto error; + return val; data->alarms = val; /* lower 8 bit of alarms */ if (data->kind == max6696) { val = lm90_select_remote_channel(client, data, 1); if (val < 0) - goto error; + return val; val = lm90_read16(client, LM90_REG_R_REMOTE_TEMPH, LM90_REG_R_REMOTE_TEMPL); - if (val < 0) - goto error; + if (val < 0) { + lm90_select_remote_channel(client, data, 0); + return val; + } data->temp11[REMOTE2_TEMP] = val; lm90_select_remote_channel(client, data, 0); val = lm90_read_reg(client, MAX6696_REG_R_STATUS2); if (val < 0) - goto error; + return val; data->alarms |= val << 8; } @@ -686,7 +689,7 @@ static struct lm90_data *lm90_update_device(struct device *dev) !(data->alarms & data->alert_alarms)) { val = lm90_read_reg(client, LM90_REG_R_CONFIG1); if (val < 0) - goto error; + return val; if (val & 0x80) { dev_dbg(&client->dev, "Re-enabling ALERT#\n"); @@ -700,13 +703,7 @@ static struct lm90_data *lm90_update_device(struct device *dev) data->valid = true; } -error: - mutex_unlock(&data->update_lock); - - if (val < 0) - return ERR_PTR(val); - - return data; + return 0; } /* @@ -832,52 +829,19 @@ static u16 temp_to_u16_adt7461(struct lm90_data *data, long val) return (val + 125) / 250 * 64; } -/* - * Sysfs stuff - */ - -static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr, - char *buf) +/* pec used for ADM1032 only */ +static ssize_t show_pec(struct device *dev, struct device_attribute *dummy, + char *buf) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct lm90_data *data = lm90_update_device(dev); - int temp; - - if (IS_ERR(data)) - return PTR_ERR(data); - - if (data->kind == adt7461 || data->kind == tmp451) - temp = temp_from_u8_adt7461(data, data->temp8[attr->index]); - else if (data->kind == max6646) - temp = temp_from_u8(data->temp8[attr->index]); - else - temp = temp_from_s8(data->temp8[attr->index]); - - /* +16 degrees offset for temp2 for the LM99 */ - if (data->kind == lm99 && attr->index == 3) - temp += 16000; + struct i2c_client *client = to_i2c_client(dev); - return sprintf(buf, "%d\n", temp); + return sprintf(buf, "%d\n", !!(client->flags & I2C_CLIENT_PEC)); } -static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, - const char *buf, size_t count) +static ssize_t set_pec(struct device *dev, struct device_attribute *dummy, + const char *buf, size_t count) { - static const u8 reg[TEMP8_REG_NUM] = { - LM90_REG_W_LOCAL_LOW, - LM90_REG_W_LOCAL_HIGH, - LM90_REG_W_LOCAL_CRIT, - LM90_REG_W_REMOTE_CRIT, - MAX6659_REG_W_LOCAL_EMERG, - MAX6659_REG_W_REMOTE_EMERG, - LM90_REG_W_REMOTE_CRIT, - MAX6659_REG_W_REMOTE_EMERG, - }; - - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct lm90_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int nr = attr->index; + struct i2c_client *client = to_i2c_client(dev); long val; int err; @@ -885,82 +849,61 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, if (err < 0) return err; - /* +16 degrees offset for temp2 for the LM99 */ - if (data->kind == lm99 && attr->index == 3) - val -= 16000; - - mutex_lock(&data->update_lock); - if (data->kind == adt7461 || data->kind == tmp451) - data->temp8[nr] = temp_to_u8_adt7461(data, val); - else if (data->kind == max6646) - data->temp8[nr] = temp_to_u8(val); - else - data->temp8[nr] = temp_to_s8(val); - - lm90_select_remote_channel(client, data, nr >= 6); - i2c_smbus_write_byte_data(client, reg[nr], data->temp8[nr]); - lm90_select_remote_channel(client, data, 0); + switch (val) { + case 0: + client->flags &= ~I2C_CLIENT_PEC; + break; + case 1: + client->flags |= I2C_CLIENT_PEC; + break; + default: + return -EINVAL; + } - mutex_unlock(&data->update_lock); return count; } -static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr, - char *buf) +static DEVICE_ATTR(pec, S_IWUSR | S_IRUGO, show_pec, set_pec); + +static int lm90_get_temp11(struct lm90_data *data, int index) { - struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr); - struct lm90_data *data = lm90_update_device(dev); + s16 temp11 = data->temp11[index]; int temp; - if (IS_ERR(data)) - return PTR_ERR(data); - if (data->kind == adt7461 || data->kind == tmp451) - temp = temp_from_u16_adt7461(data, data->temp11[attr->index]); + temp = temp_from_u16_adt7461(data, temp11); else if (data->kind == max6646) - temp = temp_from_u16(data->temp11[attr->index]); + temp = temp_from_u16(temp11); else - temp = temp_from_s16(data->temp11[attr->index]); + temp = temp_from_s16(temp11); /* +16 degrees offset for temp2 for the LM99 */ - if (data->kind == lm99 && attr->index <= 2) + if (data->kind == lm99 && index <= 2) temp += 16000; - return sprintf(buf, "%d\n", temp); + return temp; } -static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, - const char *buf, size_t count) +static int lm90_set_temp11(struct lm90_data *data, int index, long val) { - struct { + static struct reg { u8 high; u8 low; - int channel; - } reg[5] = { - { LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL, 0 }, - { LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL, 0 }, - { LM90_REG_W_REMOTE_OFFSH, LM90_REG_W_REMOTE_OFFSL, 0 }, - { LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL, 1 }, - { LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL, 1 } + } reg[] = { + [REMOTE_LOW] = { LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL }, + [REMOTE_HIGH] = { LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL }, + [REMOTE_OFFSET] = { LM90_REG_W_REMOTE_OFFSH, LM90_REG_W_REMOTE_OFFSL }, + [REMOTE2_LOW] = { LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL }, + [REMOTE2_HIGH] = { LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL } }; - - struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr); - struct lm90_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; - int nr = attr->nr; - int index = attr->index; - long val; + struct reg *regp = ®[index]; int err; - err = kstrtol(buf, 10, &val); - if (err < 0) - return err; - /* +16 degrees offset for temp2 for the LM99 */ if (data->kind == lm99 && index <= 2) val -= 16000; - mutex_lock(&data->update_lock); if (data->kind == adt7461 || data->kind == tmp451) data->temp11[index] = temp_to_u16_adt7461(data, val); else if (data->kind == max6646) @@ -970,317 +913,383 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, else data->temp11[index] = temp_to_s8(val) << 8; - lm90_select_remote_channel(client, data, reg[nr].channel); - i2c_smbus_write_byte_data(client, reg[nr].high, + lm90_select_remote_channel(client, data, index >= 3); + err = i2c_smbus_write_byte_data(client, regp->high, data->temp11[index] >> 8); + if (err < 0) + return err; if (data->flags & LM90_HAVE_REM_LIMIT_EXT) - i2c_smbus_write_byte_data(client, reg[nr].low, - data->temp11[index] & 0xff); - lm90_select_remote_channel(client, data, 0); + err = i2c_smbus_write_byte_data(client, regp->low, + data->temp11[index] & 0xff); - mutex_unlock(&data->update_lock); - return count; + lm90_select_remote_channel(client, data, 0); + return err; } -static ssize_t show_temphyst(struct device *dev, - struct device_attribute *devattr, - char *buf) +static int lm90_get_temp8(struct lm90_data *data, int index) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct lm90_data *data = lm90_update_device(dev); + s8 temp8 = data->temp8[index]; int temp; - if (IS_ERR(data)) - return PTR_ERR(data); - if (data->kind == adt7461 || data->kind == tmp451) - temp = temp_from_u8_adt7461(data, data->temp8[attr->index]); + temp = temp_from_u8_adt7461(data, temp8); else if (data->kind == max6646) - temp = temp_from_u8(data->temp8[attr->index]); + temp = temp_from_u8(temp8); else - temp = temp_from_s8(data->temp8[attr->index]); + temp = temp_from_s8(temp8); /* +16 degrees offset for temp2 for the LM99 */ - if (data->kind == lm99 && attr->index == 3) + if (data->kind == lm99 && index == 3) temp += 16000; - return sprintf(buf, "%d\n", temp - temp_from_s8(data->temp_hyst)); + return temp; } -static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy, - const char *buf, size_t count) +static int lm90_set_temp8(struct lm90_data *data, int index, long val) { - struct lm90_data *data = dev_get_drvdata(dev); + static const u8 reg[TEMP8_REG_NUM] = { + LM90_REG_W_LOCAL_LOW, + LM90_REG_W_LOCAL_HIGH, + LM90_REG_W_LOCAL_CRIT, + LM90_REG_W_REMOTE_CRIT, + MAX6659_REG_W_LOCAL_EMERG, + MAX6659_REG_W_REMOTE_EMERG, + LM90_REG_W_REMOTE_CRIT, + MAX6659_REG_W_REMOTE_EMERG, + }; struct i2c_client *client = data->client; - long val; int err; - int temp; - err = kstrtol(buf, 10, &val); - if (err < 0) - return err; + /* +16 degrees offset for temp2 for the LM99 */ + if (data->kind == lm99 && index == 3) + val -= 16000; - mutex_lock(&data->update_lock); if (data->kind == adt7461 || data->kind == tmp451) - temp = temp_from_u8_adt7461(data, data->temp8[LOCAL_CRIT]); + data->temp8[index] = temp_to_u8_adt7461(data, val); else if (data->kind == max6646) - temp = temp_from_u8(data->temp8[LOCAL_CRIT]); + data->temp8[index] = temp_to_u8(val); else - temp = temp_from_s8(data->temp8[LOCAL_CRIT]); + data->temp8[index] = temp_to_s8(val); - data->temp_hyst = hyst_to_reg(temp - val); - i2c_smbus_write_byte_data(client, LM90_REG_W_TCRIT_HYST, - data->temp_hyst); - mutex_unlock(&data->update_lock); - return count; -} - -static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy, - char *buf) -{ - struct lm90_data *data = lm90_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); + lm90_select_remote_channel(client, data, index >= 6); + err = i2c_smbus_write_byte_data(client, reg[index], data->temp8[index]); + lm90_select_remote_channel(client, data, 0); - return sprintf(buf, "%d\n", data->alarms); + return err; } -static ssize_t show_alarm(struct device *dev, struct device_attribute - *devattr, char *buf) +static int lm90_get_temphyst(struct lm90_data *data, int index) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct lm90_data *data = lm90_update_device(dev); - int bitnr = attr->index; - - if (IS_ERR(data)) - return PTR_ERR(data); + int temp; - return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1); -} + if (data->kind == adt7461 || data->kind == tmp451) + temp = temp_from_u8_adt7461(data, data->temp8[index]); + else if (data->kind == max6646) + temp = temp_from_u8(data->temp8[index]); + else + temp = temp_from_s8(data->temp8[index]); -static ssize_t show_update_interval(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct lm90_data *data = dev_get_drvdata(dev); + /* +16 degrees offset for temp2 for the LM99 */ + if (data->kind == lm99 && index == 3) + temp += 16000; - return sprintf(buf, "%u\n", data->update_interval); + return temp - temp_from_s8(data->temp_hyst); } -static ssize_t set_update_interval(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static int lm90_set_temphyst(struct lm90_data *data, long val) { - struct lm90_data *data = dev_get_drvdata(dev); struct i2c_client *client = data->client; - unsigned long val; + int temp; int err; - err = kstrtoul(buf, 10, &val); - if (err) - return err; - - mutex_lock(&data->update_lock); - lm90_set_convrate(client, data, clamp_val(val, 0, 100000)); - mutex_unlock(&data->update_lock); + if (data->kind == adt7461 || data->kind == tmp451) + temp = temp_from_u8_adt7461(data, data->temp8[LOCAL_CRIT]); + else if (data->kind == max6646) + temp = temp_from_u8(data->temp8[LOCAL_CRIT]); + else + temp = temp_from_s8(data->temp8[LOCAL_CRIT]); - return count; + data->temp_hyst = hyst_to_reg(temp - val); + err = i2c_smbus_write_byte_data(client, LM90_REG_W_TCRIT_HYST, + data->temp_hyst); + return err; } -static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp11, NULL, - 0, LOCAL_TEMP); -static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp11, NULL, - 0, REMOTE_TEMP); -static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, LOCAL_LOW); -static SENSOR_DEVICE_ATTR_2(temp2_min, S_IWUSR | S_IRUGO, show_temp11, - set_temp11, 0, REMOTE_LOW); -static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, LOCAL_HIGH); -static SENSOR_DEVICE_ATTR_2(temp2_max, S_IWUSR | S_IRUGO, show_temp11, - set_temp11, 1, REMOTE_HIGH); -static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, LOCAL_CRIT); -static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, REMOTE_CRIT); -static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temphyst, - set_temphyst, LOCAL_CRIT); -static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temphyst, NULL, - REMOTE_CRIT); -static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IWUSR | S_IRUGO, show_temp11, - set_temp11, 2, REMOTE_OFFSET); - -/* Individual alarm files */ -static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0); -static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, 1); -static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2); -static SENSOR_DEVICE_ATTR(temp2_min_alarm, S_IRUGO, show_alarm, NULL, 3); -static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4); -static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 5); -static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6); -/* Raw alarm file for compatibility */ -static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); - -static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, - set_update_interval); - -static struct attribute *lm90_attributes[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp1_min.dev_attr.attr, - &sensor_dev_attr_temp2_min.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, - &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, - - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &dev_attr_alarms.attr, - &dev_attr_update_interval.attr, - NULL +static const u8 lm90_temp_index[3] = { + LOCAL_TEMP, REMOTE_TEMP, REMOTE2_TEMP }; -static const struct attribute_group lm90_group = { - .attrs = lm90_attributes, +static const u8 lm90_temp_min_index[3] = { + LOCAL_LOW, REMOTE_LOW, REMOTE2_LOW }; -static struct attribute *lm90_temp2_offset_attributes[] = { - &sensor_dev_attr_temp2_offset.dev_attr.attr, - NULL +static const u8 lm90_temp_max_index[3] = { + LOCAL_HIGH, REMOTE_HIGH, REMOTE2_HIGH }; -static const struct attribute_group lm90_temp2_offset_group = { - .attrs = lm90_temp2_offset_attributes, +static const u8 lm90_temp_crit_index[3] = { + LOCAL_CRIT, REMOTE_CRIT, REMOTE2_CRIT }; -/* - * Additional attributes for devices with emergency sensors - */ -static SENSOR_DEVICE_ATTR(temp1_emergency, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, LOCAL_EMERG); -static SENSOR_DEVICE_ATTR(temp2_emergency, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, REMOTE_EMERG); -static SENSOR_DEVICE_ATTR(temp1_emergency_hyst, S_IRUGO, show_temphyst, - NULL, LOCAL_EMERG); -static SENSOR_DEVICE_ATTR(temp2_emergency_hyst, S_IRUGO, show_temphyst, - NULL, REMOTE_EMERG); - -static struct attribute *lm90_emergency_attributes[] = { - &sensor_dev_attr_temp1_emergency.dev_attr.attr, - &sensor_dev_attr_temp2_emergency.dev_attr.attr, - &sensor_dev_attr_temp1_emergency_hyst.dev_attr.attr, - &sensor_dev_attr_temp2_emergency_hyst.dev_attr.attr, - NULL +static const u8 lm90_temp_emerg_index[3] = { + LOCAL_EMERG, REMOTE_EMERG, REMOTE2_EMERG }; -static const struct attribute_group lm90_emergency_group = { - .attrs = lm90_emergency_attributes, -}; +static const u8 lm90_min_alarm_bits[3] = { 5, 3, 11 }; +static const u8 lm90_max_alarm_bits[3] = { 0, 4, 12 }; +static const u8 lm90_crit_alarm_bits[3] = { 0, 1, 9 }; +static const u8 lm90_emergency_alarm_bits[3] = { 15, 13, 14 }; +static const u8 lm90_fault_bits[3] = { 0, 2, 10 }; -static SENSOR_DEVICE_ATTR(temp1_emergency_alarm, S_IRUGO, show_alarm, NULL, 15); -static SENSOR_DEVICE_ATTR(temp2_emergency_alarm, S_IRUGO, show_alarm, NULL, 13); +static int lm90_temp_read(struct device *dev, u32 attr, int channel, long *val) +{ + struct lm90_data *data = dev_get_drvdata(dev); + int err; -static struct attribute *lm90_emergency_alarm_attributes[] = { - &sensor_dev_attr_temp1_emergency_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_emergency_alarm.dev_attr.attr, - NULL -}; + mutex_lock(&data->update_lock); + err = lm90_update_device(dev); + mutex_unlock(&data->update_lock); + if (err) + return err; -static const struct attribute_group lm90_emergency_alarm_group = { - .attrs = lm90_emergency_alarm_attributes, -}; + switch (attr) { + case hwmon_temp_input: + *val = lm90_get_temp11(data, lm90_temp_index[channel]); + break; + case hwmon_temp_min_alarm: + *val = (data->alarms >> lm90_min_alarm_bits[channel]) & 1; + break; + case hwmon_temp_max_alarm: + *val = (data->alarms >> lm90_max_alarm_bits[channel]) & 1; + break; + case hwmon_temp_crit_alarm: + *val = (data->alarms >> lm90_crit_alarm_bits[channel]) & 1; + break; + case hwmon_temp_emergency_alarm: + *val = (data->alarms >> lm90_emergency_alarm_bits[channel]) & 1; + break; + case hwmon_temp_fault: + *val = (data->alarms >> lm90_fault_bits[channel]) & 1; + break; + case hwmon_temp_min: + if (channel == 0) + *val = lm90_get_temp8(data, + lm90_temp_min_index[channel]); + else + *val = lm90_get_temp11(data, + lm90_temp_min_index[channel]); + break; + case hwmon_temp_max: + if (channel == 0) + *val = lm90_get_temp8(data, + lm90_temp_max_index[channel]); + else + *val = lm90_get_temp11(data, + lm90_temp_max_index[channel]); + break; + case hwmon_temp_crit: + *val = lm90_get_temp8(data, lm90_temp_crit_index[channel]); + break; + case hwmon_temp_crit_hyst: + *val = lm90_get_temphyst(data, lm90_temp_crit_index[channel]); + break; + case hwmon_temp_emergency: + *val = lm90_get_temp8(data, lm90_temp_emerg_index[channel]); + break; + case hwmon_temp_emergency_hyst: + *val = lm90_get_temphyst(data, lm90_temp_emerg_index[channel]); + break; + case hwmon_temp_offset: + *val = lm90_get_temp11(data, REMOTE_OFFSET); + break; + default: + return -EOPNOTSUPP; + } + return 0; +} -/* - * Additional attributes for devices with 3 temperature sensors - */ -static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp11, NULL, - 0, REMOTE2_TEMP); -static SENSOR_DEVICE_ATTR_2(temp3_min, S_IWUSR | S_IRUGO, show_temp11, - set_temp11, 3, REMOTE2_LOW); -static SENSOR_DEVICE_ATTR_2(temp3_max, S_IWUSR | S_IRUGO, show_temp11, - set_temp11, 4, REMOTE2_HIGH); -static SENSOR_DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, REMOTE2_CRIT); -static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_temphyst, NULL, - REMOTE2_CRIT); -static SENSOR_DEVICE_ATTR(temp3_emergency, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, REMOTE2_EMERG); -static SENSOR_DEVICE_ATTR(temp3_emergency_hyst, S_IRUGO, show_temphyst, - NULL, REMOTE2_EMERG); - -static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 9); -static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 10); -static SENSOR_DEVICE_ATTR(temp3_min_alarm, S_IRUGO, show_alarm, NULL, 11); -static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, 12); -static SENSOR_DEVICE_ATTR(temp3_emergency_alarm, S_IRUGO, show_alarm, NULL, 14); - -static struct attribute *lm90_temp3_attributes[] = { - &sensor_dev_attr_temp3_input.dev_attr.attr, - &sensor_dev_attr_temp3_min.dev_attr.attr, - &sensor_dev_attr_temp3_max.dev_attr.attr, - &sensor_dev_attr_temp3_crit.dev_attr.attr, - &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, - &sensor_dev_attr_temp3_emergency.dev_attr.attr, - &sensor_dev_attr_temp3_emergency_hyst.dev_attr.attr, - - &sensor_dev_attr_temp3_fault.dev_attr.attr, - &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_emergency_alarm.dev_attr.attr, - NULL -}; +static int lm90_temp_write(struct device *dev, u32 attr, int channel, long val) +{ + struct lm90_data *data = dev_get_drvdata(dev); + int err; -static const struct attribute_group lm90_temp3_group = { - .attrs = lm90_temp3_attributes, -}; + mutex_lock(&data->update_lock); -/* pec used for ADM1032 only */ -static ssize_t show_pec(struct device *dev, struct device_attribute *dummy, - char *buf) + err = lm90_update_device(dev); + if (err) + goto error; + + switch (attr) { + case hwmon_temp_min: + if (channel == 0) + err = lm90_set_temp8(data, + lm90_temp_min_index[channel], + val); + else + err = lm90_set_temp11(data, + lm90_temp_min_index[channel], + val); + break; + case hwmon_temp_max: + if (channel == 0) + err = lm90_set_temp8(data, + lm90_temp_max_index[channel], + val); + else + err = lm90_set_temp11(data, + lm90_temp_max_index[channel], + val); + break; + case hwmon_temp_crit: + err = lm90_set_temp8(data, lm90_temp_crit_index[channel], val); + break; + case hwmon_temp_crit_hyst: + err = lm90_set_temphyst(data, val); + break; + case hwmon_temp_emergency: + err = lm90_set_temp8(data, lm90_temp_emerg_index[channel], val); + break; + case hwmon_temp_offset: + err = lm90_set_temp11(data, REMOTE_OFFSET, val); + break; + default: + err = -EOPNOTSUPP; + break; + } +error: + mutex_unlock(&data->update_lock); + + return err; +} + +static umode_t lm90_temp_is_visible(const void *data, u32 attr, int channel) { - struct i2c_client *client = to_i2c_client(dev); - return sprintf(buf, "%d\n", !!(client->flags & I2C_CLIENT_PEC)); + switch (attr) { + case hwmon_temp_input: + case hwmon_temp_min_alarm: + case hwmon_temp_max_alarm: + case hwmon_temp_crit_alarm: + case hwmon_temp_emergency_alarm: + case hwmon_temp_emergency_hyst: + case hwmon_temp_fault: + return S_IRUGO; + case hwmon_temp_min: + case hwmon_temp_max: + case hwmon_temp_crit: + case hwmon_temp_emergency: + case hwmon_temp_offset: + return S_IRUGO | S_IWUSR; + case hwmon_temp_crit_hyst: + if (channel == 0) + return S_IRUGO | S_IWUSR; + return S_IRUGO; + default: + return 0; + } } -static ssize_t set_pec(struct device *dev, struct device_attribute *dummy, - const char *buf, size_t count) +static int lm90_chip_read(struct device *dev, u32 attr, int channel, long *val) { - struct i2c_client *client = to_i2c_client(dev); - long val; + struct lm90_data *data = dev_get_drvdata(dev); int err; - err = kstrtol(buf, 10, &val); - if (err < 0) + mutex_lock(&data->update_lock); + err = lm90_update_device(dev); + mutex_unlock(&data->update_lock); + if (err) return err; - switch (val) { - case 0: - client->flags &= ~I2C_CLIENT_PEC; + switch (attr) { + case hwmon_chip_update_interval: + *val = data->update_interval; break; - case 1: - client->flags |= I2C_CLIENT_PEC; + case hwmon_chip_alarms: + *val = data->alarms; break; default: - return -EINVAL; + return -EOPNOTSUPP; } - return count; + return 0; } -static DEVICE_ATTR(pec, S_IWUSR | S_IRUGO, show_pec, set_pec); +static int lm90_chip_write(struct device *dev, u32 attr, int channel, long val) +{ + struct lm90_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; + int err; -/* - * Real code - */ + mutex_lock(&data->update_lock); + + err = lm90_update_device(dev); + if (err) + goto error; + + switch (attr) { + case hwmon_chip_update_interval: + err = lm90_set_convrate(client, data, + clamp_val(val, 0, 100000)); + break; + default: + err = -EOPNOTSUPP; + break; + } +error: + mutex_unlock(&data->update_lock); + + return err; +} + +static umode_t lm90_chip_is_visible(const void *data, u32 attr, int channel) +{ + switch (attr) { + case hwmon_chip_update_interval: + return S_IRUGO | S_IWUSR; + case hwmon_chip_alarms: + return S_IRUGO; + default: + return 0; + } +} + +static int lm90_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + switch (type) { + case hwmon_chip: + return lm90_chip_read(dev, attr, channel, val); + case hwmon_temp: + return lm90_temp_read(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} + +static int lm90_write(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + switch (type) { + case hwmon_chip: + return lm90_chip_write(dev, attr, channel, val); + case hwmon_temp: + return lm90_temp_write(dev, attr, channel, val); + default: + return -EOPNOTSUPP; + } +} + +static umode_t lm90_is_visible(const void *data, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + switch (type) { + case hwmon_chip: + return lm90_chip_is_visible(data, attr, channel); + case hwmon_temp: + return lm90_temp_is_visible(data, attr, channel); + default: + return 0; + } +} /* Return 0 if detection is successful, -ENODEV otherwise */ static int lm90_detect(struct i2c_client *client, @@ -1617,15 +1626,32 @@ static void lm90_regulator_disable(void *regulator) regulator_disable(regulator); } +static const u32 lm90_chip_config[] = { + HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL | HWMON_C_ALARMS, + 0 +}; + +static const struct hwmon_channel_info lm90_chip_info = { + .type = hwmon_chip, + .config = lm90_chip_config, +}; + + +static const struct hwmon_ops lm90_ops = { + .is_visible = lm90_is_visible, + .read = lm90_read, + .write = lm90_write, +}; + static int lm90_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct i2c_adapter *adapter = to_i2c_adapter(dev->parent); - struct lm90_data *data; + struct hwmon_channel_info *info; struct regulator *regulator; struct device *hwmon_dev; - int groups = 0; + struct lm90_data *data; int err; regulator = devm_regulator_get(dev, "vcc"); @@ -1665,6 +1691,49 @@ static int lm90_probe(struct i2c_client *client, /* Set chip capabilities */ data->flags = lm90_params[data->kind].flags; + + data->chip.ops = &lm90_ops; + data->chip.info = data->info; + + data->info[0] = &lm90_chip_info; + data->info[1] = &data->temp_info; + + info = &data->temp_info; + info->type = hwmon_temp; + info->config = data->channel_config; + + data->channel_config[0] = HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM; + data->channel_config[1] = HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_CRIT_HYST | HWMON_T_MIN_ALARM | + HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM | HWMON_T_FAULT; + + if (data->flags & LM90_HAVE_OFFSET) + data->channel_config[1] |= HWMON_T_OFFSET; + + if (data->flags & LM90_HAVE_EMERGENCY) { + data->channel_config[0] |= HWMON_T_EMERGENCY | + HWMON_T_EMERGENCY_HYST; + data->channel_config[1] |= HWMON_T_EMERGENCY | + HWMON_T_EMERGENCY_HYST; + } + + if (data->flags & LM90_HAVE_EMERGENCY_ALARM) { + data->channel_config[0] |= HWMON_T_EMERGENCY_ALARM; + data->channel_config[1] |= HWMON_T_EMERGENCY_ALARM; + } + + if (data->flags & LM90_HAVE_TEMP3) { + data->channel_config[2] = HWMON_T_INPUT | + HWMON_T_MIN | HWMON_T_MAX | + HWMON_T_CRIT | HWMON_T_CRIT_HYST | + HWMON_T_EMERGENCY | HWMON_T_EMERGENCY_HYST | + HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | + HWMON_T_CRIT_ALARM | HWMON_T_EMERGENCY_ALARM | + HWMON_T_FAULT; + } + data->reg_local_ext = lm90_params[data->kind].reg_local_ext; /* Set maximum conversion rate */ @@ -1677,21 +1746,10 @@ static int lm90_probe(struct i2c_client *client, return err; } - /* Register sysfs hooks */ - data->groups[groups++] = &lm90_group; - - if (data->flags & LM90_HAVE_OFFSET) - data->groups[groups++] = &lm90_temp2_offset_group; - - if (data->flags & LM90_HAVE_EMERGENCY) - data->groups[groups++] = &lm90_emergency_group; - - if (data->flags & LM90_HAVE_EMERGENCY_ALARM) - data->groups[groups++] = &lm90_emergency_alarm_group; - - if (data->flags & LM90_HAVE_TEMP3) - data->groups[groups++] = &lm90_temp3_group; - + /* + * The 'pec' attribute is attached to the i2c device and thus created + * separately. + */ if (client->flags & I2C_CLIENT_PEC) { err = device_create_file(dev, &dev_attr_pec); if (err) @@ -1701,8 +1759,9 @@ static int lm90_probe(struct i2c_client *client, return err; } - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, data->groups); + hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, + data, &data->chip, + NULL); if (IS_ERR(hwmon_dev)) return PTR_ERR(hwmon_dev); |