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hwmon/w83793: Ignore disabled temperature channels
Ignore the temperature readings when its channel is disabled, ignore AMDSI readings. Signed-off-by: Gong Jun <jgong@winbond.com> Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org>
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@ -45,18 +45,14 @@ This driver implements support for Winbond W83793G/W83793R chips.
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temp5-6 have a 1 degree Celsiis resolution.
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* Temperature sensor types
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Temp1-4 have 3 possible types. It can be read from (and written to)
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Temp1-4 have 2 possible types. It can be read from (and written to)
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temp[1-4]_type.
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- If the value of 0, the related temperature channel stops
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monitoring.
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- If the value is 3, it starts monitoring using a remote termal diode
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(default).
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- If the value is 5, it starts monitoring using the temperature sensor
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in AMD CPU and get result by AMDSI.
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- If the value is 6, it starts monitoring using the temperature sensor
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in Intel CPU and get result by PECI.
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Temp5-6 can be connected to external thermistors (value of
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temp[5-6]_type is 4). They can also be disabled (value is 0).
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temp[5-6]_type is 4).
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* Alarm mechanism
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For voltage sensors, an alarm triggers if the measured value is below
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@ -204,6 +204,7 @@ struct w83793_data {
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u8 temp_fan_map[6]; /* Temp controls which pwm fan, bit field */
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u8 has_pwm;
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u8 has_temp;
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u8 pwm_enable; /* Register value, each Temp has 1 bit */
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u8 pwm_uptime; /* Register value */
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u8 pwm_downtime; /* Register value */
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@ -554,8 +555,7 @@ store_temp_mode(struct device *dev, struct device_attribute *attr,
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if ((val == 6) && (index < 4)) {
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val -= 3;
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} else if ((val == 3 && index < 4)
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|| (val == 4 && index >= 4)
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|| val == 0) {
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|| (val == 4 && index >= 4)) {
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/* transform diode or thermistor into internal enable */
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val = !!val;
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} else {
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@ -986,12 +986,6 @@ static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = {
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SENSOR_ATTR_IN(7),
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SENSOR_ATTR_IN(8),
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SENSOR_ATTR_IN(9),
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SENSOR_ATTR_TEMP(1),
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SENSOR_ATTR_TEMP(2),
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SENSOR_ATTR_TEMP(3),
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SENSOR_ATTR_TEMP(4),
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SENSOR_ATTR_TEMP(5),
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SENSOR_ATTR_TEMP(6),
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SENSOR_ATTR_FAN(1),
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SENSOR_ATTR_FAN(2),
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SENSOR_ATTR_FAN(3),
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@ -1002,6 +996,15 @@ static struct sensor_device_attribute_2 w83793_sensor_attr_2[] = {
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SENSOR_ATTR_PWM(3),
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};
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static struct sensor_device_attribute_2 w83793_temp[] = {
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SENSOR_ATTR_TEMP(1),
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SENSOR_ATTR_TEMP(2),
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SENSOR_ATTR_TEMP(3),
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SENSOR_ATTR_TEMP(4),
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SENSOR_ATTR_TEMP(5),
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SENSOR_ATTR_TEMP(6),
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};
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/* Fan6-Fan12 */
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static struct sensor_device_attribute_2 w83793_left_fan[] = {
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SENSOR_ATTR_FAN(6),
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@ -1082,6 +1085,9 @@ static int w83793_detach_client(struct i2c_client *client)
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for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
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device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
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for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
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device_remove_file(dev, &w83793_temp[i].dev_attr);
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}
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if ((err = i2c_detach_client(client)))
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@ -1194,6 +1200,7 @@ static int w83793_detect(struct i2c_adapter *adapter, int address, int kind)
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struct w83793_data *data;
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int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
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int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
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int files_temp = ARRAY_SIZE(w83793_temp) / 6;
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int err = 0;
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if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
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@ -1320,6 +1327,23 @@ static int w83793_detect(struct i2c_adapter *adapter, int address, int kind)
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data->has_pwm |= 0x80;
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}
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/* check the temp1-6 mode, ignore former AMDSI selected inputs */
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tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[0]);
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if (tmp & 0x01)
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data->has_temp |= 0x01;
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if (tmp & 0x04)
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data->has_temp |= 0x02;
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if (tmp & 0x10)
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data->has_temp |= 0x04;
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if (tmp & 0x40)
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data->has_temp |= 0x08;
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tmp = w83793_read_value(client,W83793_REG_TEMP_MODE[1]);
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if (tmp & 0x01)
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data->has_temp |= 0x10;
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if (tmp & 0x02)
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data->has_temp |= 0x20;
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/* Register sysfs hooks */
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for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) {
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err = device_create_file(dev,
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@ -1335,6 +1359,19 @@ static int w83793_detect(struct i2c_adapter *adapter, int address, int kind)
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}
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for (i = 0; i < 6; i++) {
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int j;
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if (!(data->has_temp & (1 << i)))
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continue;
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for (j = 0; j < files_temp; j++) {
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err = device_create_file(dev,
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&w83793_temp[(i) * files_temp
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+ j].dev_attr);
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if (err)
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goto exit_remove;
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}
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}
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for (i = 5; i < 12; i++) {
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int j;
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if (!(data->has_fan & (1 << i)))
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@ -1384,6 +1421,9 @@ exit_remove:
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for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
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device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
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for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
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device_remove_file(dev, &w83793_temp[i].dev_attr);
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if (data->lm75[0] != NULL) {
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i2c_detach_client(data->lm75[0]);
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kfree(data->lm75[0]);
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@ -1435,6 +1475,8 @@ static void w83793_update_nonvolatile(struct device *dev)
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}
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for (i = 0; i < ARRAY_SIZE(data->temp_fan_map); i++) {
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if (!(data->has_temp & (1 << i)))
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continue;
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data->temp_fan_map[i] =
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w83793_read_value(client, W83793_REG_TEMP_FAN_MAP(i));
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for (j = 1; j < 5; j++) {
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@ -1517,9 +1559,12 @@ static struct w83793_data *w83793_update_device(struct device *dev)
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w83793_read_value(client, W83793_REG_FAN(i) + 1);
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}
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for (i = 0; i < ARRAY_SIZE(data->temp); i++)
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for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
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if (!(data->has_temp & (1 << i)))
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continue;
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data->temp[i][TEMP_READ] =
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w83793_read_value(client, W83793_REG_TEMP[i][TEMP_READ]);
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}
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data->temp_low_bits =
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w83793_read_value(client, W83793_REG_TEMP_LOW_BITS);
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