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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-02-12 00:16:25 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-02-12 00:16:25 (GMT) |
commit | 68c3d4b26623e92656588061405d9dbdf97c0706 (patch) | |
tree | ba48630d57d631b6cef22f48ab8581167d46f425 /drivers | |
parent | f7909fb83550573300e72d120a7d97c9f6b53a65 (diff) | |
parent | bcf721d14d881da86a8defa96bdc9492abe191ae (diff) | |
download | linux-fsl-qoriq-68c3d4b26623e92656588061405d9dbdf97c0706.tar.xz |
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
hwmon: (emc1403) Fix I2C address range
hwmon: (lm63) Consider LM64 temperature offset
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/hwmon/emc1403.c | 2 | ||||
-rw-r--r-- | drivers/hwmon/lm63.c | 59 |
2 files changed, 48 insertions, 13 deletions
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index 5dea9fa..cd2a6e4 100644 --- a/drivers/hwmon/emc1403.c +++ b/drivers/hwmon/emc1403.c @@ -344,7 +344,7 @@ static int emc1403_remove(struct i2c_client *client) } static const unsigned short emc1403_address_list[] = { - 0x18, 0x2a, 0x4c, 0x4d, I2C_CLIENT_END + 0x18, 0x29, 0x4c, 0x4d, I2C_CLIENT_END }; static const struct i2c_device_id emc1403_idtable[] = { diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index 776aeb3..508cb29 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -98,6 +98,9 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; * value, it uses signed 8-bit values with LSB = 1 degree Celsius. * For remote temperature, low and high limits, it uses signed 11-bit values * with LSB = 0.125 degree Celsius, left-justified in 16-bit registers. + * For LM64 the actual remote diode temperature is 16 degree Celsius higher + * than the register reading. Remote temperature setpoints have to be + * adapted accordingly. */ #define FAN_FROM_REG(reg) ((reg) == 0xFFFC || (reg) == 0 ? 0 : \ @@ -165,6 +168,8 @@ struct lm63_data { struct mutex update_lock; char valid; /* zero until following fields are valid */ unsigned long last_updated; /* in jiffies */ + int kind; + int temp2_offset; /* registers values */ u8 config, config_fan; @@ -247,16 +252,34 @@ static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *dum return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2); } -static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr, - char *buf) +/* + * There are 8bit registers for both local(temp1) and remote(temp2) sensor. + * For remote sensor registers temp2_offset has to be considered, + * for local sensor it must not. + * So we need separate 8bit accessors for local and remote sensor. + */ +static ssize_t show_local_temp8(struct device *dev, + struct device_attribute *devattr, + char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index])); } -static ssize_t set_temp8(struct device *dev, struct device_attribute *dummy, - const char *buf, size_t count) +static ssize_t show_remote_temp8(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct lm63_data *data = lm63_update_device(dev); + return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index]) + + data->temp2_offset); +} + +static ssize_t set_local_temp8(struct device *dev, + struct device_attribute *dummy, + const char *buf, size_t count) { struct i2c_client *client = to_i2c_client(dev); struct lm63_data *data = i2c_get_clientdata(client); @@ -274,7 +297,8 @@ static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr, { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); struct lm63_data *data = lm63_update_device(dev); - return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index])); + return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index]) + + data->temp2_offset); } static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, @@ -294,7 +318,7 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, int nr = attr->index; mutex_lock(&data->update_lock); - data->temp11[nr] = TEMP11_TO_REG(val); + data->temp11[nr] = TEMP11_TO_REG(val - data->temp2_offset); i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2], data->temp11[nr] >> 8); i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1], @@ -310,6 +334,7 @@ static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute { struct lm63_data *data = lm63_update_device(dev); return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[2]) + + data->temp2_offset - TEMP8_FROM_REG(data->temp2_crit_hyst)); } @@ -324,7 +349,7 @@ static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute * long hyst; mutex_lock(&data->update_lock); - hyst = TEMP8_FROM_REG(data->temp8[2]) - val; + hyst = TEMP8_FROM_REG(data->temp8[2]) + data->temp2_offset - val; i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST, HYST_TO_REG(hyst)); mutex_unlock(&data->update_lock); @@ -355,16 +380,21 @@ static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan, static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1); static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL); -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp8, NULL, 0); -static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8, - set_temp8, 1); +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_local_temp8, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_local_temp8, + set_local_temp8, 1); static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0); static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11, set_temp11, 1); static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11, set_temp11, 2); -static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp8, NULL, 2); +/* + * On LM63, temp2_crit can be set only once, which should be job + * of the bootloader. + */ +static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_remote_temp8, + NULL, 2); static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst, set_temp2_crit_hyst); @@ -479,7 +509,12 @@ static int lm63_probe(struct i2c_client *new_client, data->valid = 0; mutex_init(&data->update_lock); - /* Initialize the LM63 chip */ + /* Set the device type */ + data->kind = id->driver_data; + if (data->kind == lm64) + data->temp2_offset = 16000; + + /* Initialize chip */ lm63_init_client(new_client); /* Register sysfs hooks */ |