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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 09:45:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 09:45:48 -0700
commit92ddcf4a011a95dac98d3bbb0211a2fa42f13dc1 (patch)
treeac937fd7cc4d53542c5c299c85df09b1b87bf1c8 /Documentation
parent000a74f41e601bc4e36a760aa42f219a019c5391 (diff)
parent6445e6600fa632448cac64e71119310378464ad9 (diff)
downloadlinux-92ddcf4a011a95dac98d3bbb0211a2fa42f13dc1.tar.gz
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon update from Guenter Roeck: - New drivers for NCT6775, NCT6776, NCT6779, and LM95234. - Added support for LTC2974, LTC3883, LM25056, TMP431, TMP432, ADT7310, and ADT7320 to existing drivers. - Various code cleanups and minor improvements. * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (54 commits) hwmon: (nct6775) Fix coding style problems hwmon: (nct6775) Constify strings hwmon: (tmp401) Add support for TMP432 hwmon: (tmp401) Add support for update_interval attribute hwmon: (tmp401) Reset valid flag when resetting temperature history hwmon: (tmp401) Simplification and cleanup hwmon: (tmp401) Use sysfs_create_group / sysfs_remove_group hwmon: (tmp401) Drop unused defines, use BIT for bit masks hwmon: (nct6775) Use ARRAY_SIZE for loops where possible documentation: hwmon: Fix typo in documentation/hwmon hwmon: (nct6775) Enable both AUXTIN and VIN3 on NCT6776 hwmon: (ad7314) use spi_get_drvdata() and spi_set_drvdata() MAINTAINERS: Add myself as maintainer for the NCT6775 driver hwmon: (nct6775) Expand scope of supported chips hwmon: (gpio-fan) Use is_visible to determine if attributes should be created hwmon: (tmp401) Fix device detection for TMP411B and TMP411C hwmon: Add driver for LM95234 hwmon: (tmp401) Add support for TMP431 hwmon: (pmbus/lm25066) Add support for LM25056 hwmon: (pmbus/lm25066) Refactor device specific coefficients ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt29
-rw-r--r--Documentation/hwmon/adt741047
-rw-r--r--Documentation/hwmon/lm2506634
-rw-r--r--Documentation/hwmon/lm9523436
-rw-r--r--Documentation/hwmon/ltc2978143
-rw-r--r--Documentation/hwmon/nct6775188
-rw-r--r--Documentation/hwmon/sht152
-rw-r--r--Documentation/hwmon/tmp40125
-rw-r--r--Documentation/hwmon/zl61002
9 files changed, 415 insertions, 91 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
new file mode 100644
index 00000000000..c6f66674f19
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
@@ -0,0 +1,29 @@
+NTC Thermistor hwmon sensors
+-------------------------------
+
+Requires node properties:
+- "compatible" value : one of
+ "ntc,ncp15wb473"
+ "ntc,ncp18wb473"
+ "ntc,ncp21wb473"
+ "ntc,ncp03wb473"
+ "ntc,ncp15wl333"
+- "pullup-uv" Pull up voltage in micro volts
+- "pullup-ohm" Pull up resistor value in ohms
+- "pulldown-ohm" Pull down resistor value in ohms
+- "connected-positive" Always ON, If not specified.
+ Status change is possible.
+- "io-channels" Channel node of ADC to be used for
+ conversion.
+
+Read more about iio bindings at
+ Documentation/devicetree/bindings/iio/iio-bindings.txt
+
+Example:
+ ncp15wb473@0 {
+ compatible = "ntc,ncp15wb473";
+ pullup-uv = <1800000>;
+ pullup-ohm = <47000>;
+ pulldown-ohm = <0>;
+ io-channels = <&adc 3>;
+ };
diff --git a/Documentation/hwmon/adt7410 b/Documentation/hwmon/adt7410
index 58150c480e5..9817941e5f1 100644
--- a/Documentation/hwmon/adt7410
+++ b/Documentation/hwmon/adt7410
@@ -12,29 +12,42 @@ Supported chips:
Addresses scanned: None
Datasheet: Publicly available at the Analog Devices website
http://www.analog.com/static/imported-files/data_sheets/ADT7420.pdf
+ * Analog Devices ADT7310
+ Prefix: 'adt7310'
+ Addresses scanned: None
+ Datasheet: Publicly available at the Analog Devices website
+ http://www.analog.com/static/imported-files/data_sheets/ADT7310.pdf
+ * Analog Devices ADT7320
+ Prefix: 'adt7320'
+ Addresses scanned: None
+ Datasheet: Publicly available at the Analog Devices website
+ http://www.analog.com/static/imported-files/data_sheets/ADT7320.pdf
Author: Hartmut Knaack <knaack.h@gmx.de>
Description
-----------
-The ADT7410 is a temperature sensor with rated temperature range of -55°C to
-+150°C. It has a high accuracy of +/-0.5°C and can be operated at a resolution
-of 13 bits (0.0625°C) or 16 bits (0.0078°C). The sensor provides an INT pin to
-indicate that a minimum or maximum temperature set point has been exceeded, as
-well as a critical temperature (CT) pin to indicate that the critical
-temperature set point has been exceeded. Both pins can be set up with a common
-hysteresis of 0°C - 15°C and a fault queue, ranging from 1 to 4 events. Both
-pins can individually set to be active-low or active-high, while the whole
-device can either run in comparator mode or interrupt mode. The ADT7410
-supports continous temperature sampling, as well as sampling one temperature
-value per second or even justget one sample on demand for power saving.
-Besides, it can completely power down its ADC, if power management is
-required.
-
-The ADT7420 is register compatible, the only differences being the package,
-a slightly narrower operating temperature range (-40°C to +150°C), and a
-better accuracy (0.25°C instead of 0.50°C.)
+The ADT7310/ADT7410 is a temperature sensor with rated temperature range of
+-55°C to +150°C. It has a high accuracy of +/-0.5°C and can be operated at a
+resolution of 13 bits (0.0625°C) or 16 bits (0.0078°C). The sensor provides an
+INT pin to indicate that a minimum or maximum temperature set point has been
+exceeded, as well as a critical temperature (CT) pin to indicate that the
+critical temperature set point has been exceeded. Both pins can be set up with a
+common hysteresis of 0°C - 15°C and a fault queue, ranging from 1 to 4 events.
+Both pins can individually set to be active-low or active-high, while the whole
+device can either run in comparator mode or interrupt mode. The ADT7410 supports
+continuous temperature sampling, as well as sampling one temperature value per
+second or even just get one sample on demand for power saving. Besides, it can
+completely power down its ADC, if power management is required.
+
+The ADT7320/ADT7420 is register compatible, the only differences being the
+package, a slightly narrower operating temperature range (-40°C to +150°C), and
+a better accuracy (0.25°C instead of 0.50°C.)
+
+The difference between the ADT7310/ADT7320 and ADT7410/ADT7420 is the control
+interface, the ADT7310 and ADT7320 use SPI while the ADT7410 and ADT7420 use
+I2C.
Configuration Notes
-------------------
diff --git a/Documentation/hwmon/lm25066 b/Documentation/hwmon/lm25066
index 26025e419d3..c1b57d72efc 100644
--- a/Documentation/hwmon/lm25066
+++ b/Documentation/hwmon/lm25066
@@ -1,7 +1,13 @@
-Kernel driver max8688
+Kernel driver lm25066
=====================
Supported chips:
+ * TI LM25056
+ Prefix: 'lm25056'
+ Addresses scanned: -
+ Datasheets:
+ http://www.ti.com/lit/gpn/lm25056
+ http://www.ti.com/lit/gpn/lm25056a
* National Semiconductor LM25066
Prefix: 'lm25066'
Addresses scanned: -
@@ -25,8 +31,9 @@ Author: Guenter Roeck <linux@roeck-us.net>
Description
-----------
-This driver supports hardware montoring for National Semiconductor LM25066,
-LM5064, and LM5064 Power Management, Monitoring, Control, and Protection ICs.
+This driver supports hardware montoring for National Semiconductor / TI LM25056,
+LM25066, LM5064, and LM5064 Power Management, Monitoring, Control, and
+Protection ICs.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
@@ -60,14 +67,19 @@ in1_max Maximum input voltage.
in1_min_alarm Input voltage low alarm.
in1_max_alarm Input voltage high alarm.
-in2_label "vout1"
-in2_input Measured output voltage.
-in2_average Average measured output voltage.
-in2_min Minimum output voltage.
-in2_min_alarm Output voltage low alarm.
-
-in3_label "vout2"
-in3_input Measured voltage on vaux pin
+in2_label "vmon"
+in2_input Measured voltage on VAUX pin
+in2_min Minimum VAUX voltage (LM25056 only).
+in2_max Maximum VAUX voltage (LM25056 only).
+in2_min_alarm VAUX voltage low alarm (LM25056 only).
+in2_max_alarm VAUX voltage high alarm (LM25056 only).
+
+in3_label "vout1"
+ Not supported on LM25056.
+in3_input Measured output voltage.
+in3_average Average measured output voltage.
+in3_min Minimum output voltage.
+in3_min_alarm Output voltage low alarm.
curr1_label "iin"
curr1_input Measured input current.
diff --git a/Documentation/hwmon/lm95234 b/Documentation/hwmon/lm95234
new file mode 100644
index 00000000000..a0e95ddfd37
--- /dev/null
+++ b/Documentation/hwmon/lm95234
@@ -0,0 +1,36 @@
+Kernel driver lm95234
+=====================
+
+Supported chips:
+ * National Semiconductor / Texas Instruments LM95234
+ Addresses scanned: I2C 0x18, 0x4d, 0x4e
+ Datasheet: Publicly available at the Texas Instruments website
+ http://www.ti.com/product/lm95234
+
+
+Author: Guenter Roeck <linux@roeck-us.net>
+
+Description
+-----------
+
+LM95234 is an 11-bit digital temperature sensor with a 2-wire System Management
+Bus (SMBus) interface and TrueTherm technology that can very accurately monitor
+the temperature of four remote diodes as well as its own temperature.
+The four remote diodes can be external devices such as microprocessors,
+graphics processors or diode-connected 2N3904s. The LM95234's TruTherm
+beta compensation technology allows sensing of 90 nm or 65 nm process
+thermal diodes accurately.
+
+All temperature values are given in millidegrees Celsius. Temperature
+is provided within a range of -127 to +255 degrees (+127.875 degrees for
+the internal sensor). Resolution depends on temperature input and range.
+
+Each sensor has its own maximum limit, but the hysteresis is common to all
+channels. The hysteresis is configurable with the tem1_max_hyst attribute and
+affects the hysteresis on all channels. The first two external sensors also
+have a critical limit.
+
+The lm95234 driver can change its update interval to a fixed set of values.
+It will round up to the next selectable interval. See the datasheet for exact
+values. Reading sensor values more often will do no harm, but will return
+'old' values.
diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978
index e4d75c606c9..dc0d08c6130 100644
--- a/Documentation/hwmon/ltc2978
+++ b/Documentation/hwmon/ltc2978
@@ -2,6 +2,10 @@ Kernel driver ltc2978
=====================
Supported chips:
+ * Linear Technology LTC2974
+ Prefix: 'ltc2974'
+ Addresses scanned: -
+ Datasheet: http://www.linear.com/product/ltc2974
* Linear Technology LTC2978
Prefix: 'ltc2978'
Addresses scanned: -
@@ -10,6 +14,10 @@ Supported chips:
Prefix: 'ltc3880'
Addresses scanned: -
Datasheet: http://www.linear.com/product/ltc3880
+ * Linear Technology LTC3883
+ Prefix: 'ltc3883'
+ Addresses scanned: -
+ Datasheet: http://www.linear.com/product/ltc3883
Author: Guenter Roeck <linux@roeck-us.net>
@@ -17,9 +25,9 @@ Author: Guenter Roeck <linux@roeck-us.net>
Description
-----------
-The LTC2978 is an octal power supply monitor, supervisor, sequencer and
-margin controller. The LTC3880 is a dual, PolyPhase DC/DC synchronous
-step-down switching regulator controller.
+LTC2974 is a quad digital power supply manager. LTC2978 is an octal power supply
+monitor. LTC3880 is a dual output poly-phase step-down DC/DC controller. LTC3883
+is a single phase step-down DC/DC controller.
Usage Notes
@@ -41,63 +49,90 @@ Sysfs attributes
in1_label "vin"
in1_input Measured input voltage.
in1_min Minimum input voltage.
-in1_max Maximum input voltage.
-in1_lcrit Critical minimum input voltage.
+in1_max Maximum input voltage. LTC2974 and LTC2978 only.
+in1_lcrit Critical minimum input voltage. LTC2974 and LTC2978
+ only.
in1_crit Critical maximum input voltage.
in1_min_alarm Input voltage low alarm.
-in1_max_alarm Input voltage high alarm.
-in1_lcrit_alarm Input voltage critical low alarm.
+in1_max_alarm Input voltage high alarm. LTC2974 and LTC2978 only.
+in1_lcrit_alarm Input voltage critical low alarm. LTC2974 and LTC2978
+ only.
in1_crit_alarm Input voltage critical high alarm.
-in1_lowest Lowest input voltage. LTC2978 only.
+in1_lowest Lowest input voltage. LTC2974 and LTC2978 only.
in1_highest Highest input voltage.
-in1_reset_history Reset history. Writing into this attribute will reset
- history for all attributes.
-
-in[2-9]_label "vout[1-8]". Channels 3 to 9 on LTC2978 only.
-in[2-9]_input Measured output voltage.
-in[2-9]_min Minimum output voltage.
-in[2-9]_max Maximum output voltage.
-in[2-9]_lcrit Critical minimum output voltage.
-in[2-9]_crit Critical maximum output voltage.
-in[2-9]_min_alarm Output voltage low alarm.
-in[2-9]_max_alarm Output voltage high alarm.
-in[2-9]_lcrit_alarm Output voltage critical low alarm.
-in[2-9]_crit_alarm Output voltage critical high alarm.
-in[2-9]_lowest Lowest output voltage. LTC2978 only.
-in[2-9]_highest Lowest output voltage.
-in[2-9]_reset_history Reset history. Writing into this attribute will reset
- history for all attributes.
-
-temp[1-3]_input Measured temperature.
+in1_reset_history Reset input voltage history.
+
+in[N]_label "vout[1-8]".
+ LTC2974: N=2-5
+ LTC2978: N=2-9
+ LTC3880: N=2-3
+ LTC3883: N=2
+in[N]_input Measured output voltage.
+in[N]_min Minimum output voltage.
+in[N]_max Maximum output voltage.
+in[N]_lcrit Critical minimum output voltage.
+in[N]_crit Critical maximum output voltage.
+in[N]_min_alarm Output voltage low alarm.
+in[N]_max_alarm Output voltage high alarm.
+in[N]_lcrit_alarm Output voltage critical low alarm.
+in[N]_crit_alarm Output voltage critical high alarm.
+in[N]_lowest Lowest output voltage. LTC2974 and LTC2978 only.
+in[N]_highest Highest output voltage.
+in[N]_reset_history Reset output voltage history.
+
+temp[N]_input Measured temperature.
+ On LTC2974, temp[1-4] report external temperatures,
+ and temp5 reports the chip temperature.
On LTC2978, only one temperature measurement is
- supported and reflects the internal temperature.
+ supported and reports the chip temperature.
On LTC3880, temp1 and temp2 report external
- temperatures, and temp3 reports the internal
- temperature.
-temp[1-3]_min Mimimum temperature.
-temp[1-3]_max Maximum temperature.
-temp[1-3]_lcrit Critical low temperature.
-temp[1-3]_crit Critical high temperature.
-temp[1-3]_min_alarm Chip temperature low alarm.
-temp[1-3]_max_alarm Chip temperature high alarm.
-temp[1-3]_lcrit_alarm Chip temperature critical low alarm.
-temp[1-3]_crit_alarm Chip temperature critical high alarm.
-temp[1-3]_lowest Lowest measured temperature. LTC2978 only.
-temp[1-3]_highest Highest measured temperature.
-temp[1-3]_reset_history Reset history. Writing into this attribute will reset
- history for all attributes.
-
-power[1-2]_label "pout[1-2]". LTC3880 only.
-power[1-2]_input Measured power.
-
-curr1_label "iin". LTC3880 only.
+ temperatures, and temp3 reports the chip temperature.
+ On LTC3883, temp1 reports an external temperature,
+ and temp2 reports the chip temperature.
+temp[N]_min Mimimum temperature. LTC2974 and LTC2978 only.
+temp[N]_max Maximum temperature.
+temp[N]_lcrit Critical low temperature.
+temp[N]_crit Critical high temperature.
+temp[N]_min_alarm Temperature low alarm. LTC2974 and LTC2978 only.
+temp[N]_max_alarm Temperature high alarm.
+temp[N]_lcrit_alarm Temperature critical low alarm.
+temp[N]_crit_alarm Temperature critical high alarm.
+temp[N]_lowest Lowest measured temperature. LTC2974 and LTC2978 only.
+ Not supported for chip temperature sensor on LTC2974.
+temp[N]_highest Highest measured temperature. Not supported for chip
+ temperature sensor on LTC2974.
+temp[N]_reset_history Reset temperature history. Not supported for chip
+ temperature sensor on LTC2974.
+
+power1_label "pin". LTC3883 only.
+power1_input Measured input power.
+
+power[N]_label "pout[1-4]".
+ LTC2974: N=1-4
+ LTC2978: Not supported
+ LTC3880: N=1-2
+ LTC3883: N=2
+power[N]_input Measured output power.
+
+curr1_label "iin". LTC3880 and LTC3883 only.
curr1_input Measured input current.
curr1_max Maximum input current.
curr1_max_alarm Input current high alarm.
-
-curr[2-3]_label "iout[1-2]". LTC3880 only.
-curr[2-3]_input Measured input current.
-curr[2-3]_max Maximum input current.
-curr[2-3]_crit Critical input current.
-curr[2-3]_max_alarm Input current high alarm.
-curr[2-3]_crit_alarm Input current critical high alarm.
+curr1_highest Highest input current. LTC3883 only.
+curr1_reset_history Reset input current history. LTC3883 only.
+
+curr[N]_label "iout[1-4]".
+ LTC2974: N=1-4
+ LTC2978: not supported
+ LTC3880: N=2-3
+ LTC3883: N=2
+curr[N]_input Measured output current.
+curr[N]_max Maximum output current.
+curr[N]_crit Critical high output current.
+curr[N]_lcrit Critical low output current. LTC2974 only.
+curr[N]_max_alarm Output current high alarm.
+curr[N]_crit_alarm Output current critical high alarm.
+curr[N]_lcrit_alarm Output current critical low alarm. LTC2974 only.
+curr[N]_lowest Lowest output current. LTC2974 only.
+curr[N]_highest Highest output current.
+curr[N]_reset_history Reset output current history.
diff --git a/Documentation/hwmon/nct6775 b/Documentation/hwmon/nct6775
new file mode 100644
index 00000000000..4e9ef60e8c6
--- /dev/null
+++ b/Documentation/hwmon/nct6775
@@ -0,0 +1,188 @@
+Note
+====
+
+This driver supersedes the NCT6775F and NCT6776F support in the W83627EHF
+driver.
+
+Kernel driver NCT6775
+=====================
+
+Supported chips:
+ * Nuvoton NCT5572D/NCT6771F/NCT6772F/NCT6775F/W83677HG-I
+ Prefix: 'nct6775'
+ Addresses scanned: ISA address retrieved from Super I/O registers
+ Datasheet: Available from Nuvoton upon request
+ * Nuvoton NCT5577D/NCT6776D/NCT6776F
+ Prefix: 'nct6776'
+ Addresses scanned: ISA address retrieved from Super I/O registers
+ Datasheet: Available from Nuvoton upon request
+ * Nuvoton NCT5532D/NCT6779D
+ Prefix: 'nct6779'
+ Addresses scanned: ISA address retrieved from Super I/O registers
+ Datasheet: Available from Nuvoton upon request
+
+Authors:
+ Guenter Roeck <linux@roeck-us.net>
+
+Description
+-----------
+
+This driver implements support for the Nuvoton NCT6775F, NCT6776F, and NCT6779D
+and compatible super I/O chips.
+
+The chips support up to 25 temperature monitoring sources. Up to 6 of those are
+direct temperature sensor inputs, the others are special sources such as PECI,
+PCH, and SMBUS. Depending on the chip type, 2 to 6 of the temperature sources
+can be monitored and compared against minimum, maximum, and critical
+temperatures. The driver reports up to 10 of the temperatures to the user.
+There are 4 to 5 fan rotation speed sensors, 8 to 15 analog voltage sensors,
+one VID, alarms with beep warnings (control unimplemented), and some automatic
+fan regulation strategies (plus manual fan control mode).
+
+The temperature sensor sources on all chips are configurable. The configured
+source for each of the temperature sensors is provided in tempX_label.
+
+Temperatures are measured in degrees Celsius and measurement resolution is
+either 1 degC or 0.5 degC, depending on the temperature source and
+configuration. An alarm is triggered when the temperature gets higher than
+the high limit; it stays on until the temperature falls below the hysteresis
+value. Alarms are only supported for temp1 to temp6, depending on the chip type.
+
+Fan rotation speeds are reported in RPM (rotations per minute). An alarm is
+triggered if the rotation speed has dropped below a programmable limit. On
+NCT6775F, fan readings can be divided by a programmable divider (1, 2, 4, 8,
+16, 32, 64 or 128) to give the readings more range or accuracy; the other chips
+do not have a fan speed divider. The driver sets the most suitable fan divisor
+itself; specifically, it increases the divider value each time a fan speed
+reading returns an invalid value, and it reduces it if the fan speed reading
+is lower than optimal. Some fans might not be present because they share pins
+with other functions.
+
+Voltage sensors (also known as IN sensors) report their values in millivolts.
+An alarm is triggered if the voltage has crossed a programmable minimum
+or maximum limit.
+
+The driver supports automatic fan control mode known as Thermal Cruise.
+In this mode, the chip attempts to keep the measured temperature in a
+predefined temperature range. If the temperature goes out of range, fan
+is driven slower/faster to reach the predefined range again.
+
+The mode works for fan1-fan5.
+
+sysfs attributes
+----------------
+
+pwm[1-5] - this file stores PWM duty cycle or DC value (fan speed) in range:
+ 0 (lowest speed) to 255 (full)
+
+pwm[1-5]_enable - this file controls mode of fan/temperature control:
+ * 0 Fan control disabled (fans set to maximum speed)
+ * 1 Manual mode, write to pwm[0-5] any value 0-255
+ * 2 "Thermal Cruise" mode
+ * 3 "Fan Speed Cruise" mode
+ * 4 "Smart Fan III" mode (NCT6775F only)
+ * 5 "Smart Fan IV" mode
+
+pwm[1-5]_mode - controls if output is PWM or DC level
+ * 0 DC output
+ * 1 PWM output
+
+Common fan control attributes
+-----------------------------
+
+pwm[1-5]_temp_sel Temperature source. Value is temperature sensor index.
+ For example, select '1' for temp1_input.
+pwm[1-5]_weight_temp_sel
+ Secondary temperature source. Value is temperature
+ sensor index. For example, select '1' for temp1_input.
+ Set to 0 to disable secondary temperature control.
+
+If secondary temperature functionality is enabled, it is controlled with the
+following attributes.
+
+pwm[1-5]_weight_duty_step
+ Duty step size.
+pwm[1-5]_weight_temp_step
+ Temperature step size. With each step over
+ temp_step_base, the value of weight_duty_step is added
+ to the current pwm value.
+pwm[1-5]_weight_temp_step_base
+ Temperature at which secondary temperature control kicks
+ in.
+pwm[1-5]_weight_temp_step_tol
+ Temperature step tolerance.
+
+Thermal Cruise mode (2)
+-----------------------
+
+If the temperature is in the range defined by:
+
+pwm[1-5]_target_temp Target temperature, unit millidegree Celsius
+ (range 0 - 127000)
+pwm[1-5]_temp_tolerance
+ Target temperature tolerance, unit millidegree Celsius
+
+there are no changes to fan speed. Once the temperature leaves the interval, fan
+speed increases (if temperature is higher that desired) or decreases (if
+temperature is lower than desired), using the following limits and time
+intervals.
+
+pwm[1-5]_start fan pwm start value (range 1 - 255), to start fan
+ when the temperature is above defined range.
+pwm[1-5]_floor lowest fan pwm (range 0 - 255) if temperature is below
+ the defined range. If set to 0, the fan is expected to
+ stop if the temperature is below the defined range.
+pwm[1-5]_step_up_time milliseconds before fan speed is increased
+pwm[1-5]_step_down_time milliseconds before fan speed is decreased
+pwm[1-5]_stop_time how many milliseconds must elapse to switch
+ corresponding fan off (when the temperature was below
+ defined range).
+
+Speed Cruise mode (3)
+---------------------
+
+This modes tries to keep the fan speed constant.
+
+fan[1-5]_target Target fan speed
+fan[1-5]_tolerance
+ Target speed tolerance
+
+
+Untested; use at your own risk.
+
+Smart Fan IV mode (5)
+---------------------
+
+This mode offers multiple slopes to control the fan speed. The slopes can be
+controlled by setting the pwm and temperature attributes. When the temperature
+rises, the chip will calculate the DC/PWM output based on the current slope.
+There are up to seven data points depending on the chip type. Subsequent data
+points should be set to higher temperatures and higher pwm values to achieve
+higher fan speeds with increasing temperature. The last data point reflects
+critical temperature mode, in which the fans should run at full speed.
+
+pwm[1-5]_auto_point[1-7]_pwm
+ pwm value to be set if temperature reaches matching
+ temperature range.
+pwm[1-5]_auto_point[1-7]_temp
+ Temperature over which the matching pwm is enabled.
+pwm[1-5]_temp_tolerance
+ Temperature tolerance, unit millidegree Celsius
+pwm[1-5]_crit_temp_tolerance
+ Temperature tolerance for critical temperature,
+ unit millidegree Celsius
+
+pwm[1-5]_step_up_time milliseconds before fan speed is increased
+pwm[1-5]_step_down_time milliseconds before fan speed is decreased
+
+Usage Notes
+-----------
+
+On various ASUS boards with NCT6776F, it appears that CPUTIN is not really
+connected to anything and floats, or that it is connected to some non-standard
+temperature measurement device. As a result, the temperature reported on CPUTIN
+will not reflect a usable value. It often reports unreasonably high
+temperatures, and in some cases the reported temperature declines if the actual
+temperature increases (similar to the raw PECI temperature value - see PECI
+specification for details). CPUTIN should therefore be be ignored on ASUS
+boards. The CPU temperature on ASUS boards is reported from PECI 0.
diff --git a/Documentation/hwmon/sht15 b/Documentation/hwmon/sht15
index 02850bdfac1..778987d1856 100644
--- a/Documentation/hwmon/sht15
+++ b/Documentation/hwmon/sht15
@@ -40,7 +40,7 @@ bits for humidity, or 12 bits for temperature and 8 bits for humidity.
The humidity calibration coefficients are programmed into an OTP memory on the
chip. These coefficients are used to internally calibrate the signals from the
sensors. Disabling the reload of those coefficients allows saving 10ms for each
-measurement and decrease power consumption, while loosing on precision.
+measurement and decrease power consumption, while losing on precision.
Some options may be set directly in the sht15_platform_data structure
or via sysfs attributes.
diff --git a/Documentation/hwmon/tmp401 b/Documentation/hwmon/tmp401
index 9fc44724921..f91e3fa7e5e 100644
--- a/Documentation/hwmon/tmp401
+++ b/Documentation/hwmon/tmp401
@@ -8,8 +8,16 @@ Supported chips:
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp401.html
* Texas Instruments TMP411
Prefix: 'tmp411'
- Addresses scanned: I2C 0x4c
+ Addresses scanned: I2C 0x4c, 0x4d, 0x4e
Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp411.html
+ * Texas Instruments TMP431
+ Prefix: 'tmp431'
+ Addresses scanned: I2C 0x4c, 0x4d
+ Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp431.html
+ * Texas Instruments TMP432
+ Prefix: 'tmp432'
+ Addresses scanned: I2C 0x4c, 0x4d
+ Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp432.html
Authors:
Hans de Goede <hdegoede@redhat.com>
@@ -18,19 +26,19 @@ Authors:
Description
-----------
-This driver implements support for Texas Instruments TMP401 and
-TMP411 chips. These chips implements one remote and one local
-temperature sensor. Temperature is measured in degrees
+This driver implements support for Texas Instruments TMP401, TMP411,
+TMP431, and TMP432 chips. These chips implement one or two remote and
+one local temperature sensors. Temperature is measured in degrees
Celsius. Resolution of the remote sensor is 0.0625 degree. Local
sensor resolution can be set to 0.5, 0.25, 0.125 or 0.0625 degree (not
supported by the driver so far, so using the default resolution of 0.5
degree).
The driver provides the common sysfs-interface for temperatures (see
-/Documentation/hwmon/sysfs-interface under Temperatures).
+Documentation/hwmon/sysfs-interface under Temperatures).
-The TMP411 chip is compatible with TMP401. It provides some additional
-features.
+The TMP411 and TMP431 chips are compatible with TMP401. TMP411 provides
+some additional features.
* Minimum and Maximum temperature measured since power-on, chip-reset
@@ -40,3 +48,6 @@ features.
Exported via sysfs attribute temp_reset_history. Writing 1 to this
file triggers a reset.
+
+TMP432 is compatible with TMP401 and TMP431. It supports two external
+temperature sensors.
diff --git a/Documentation/hwmon/zl6100 b/Documentation/hwmon/zl6100
index 756b57c6b73..33908a4d68f 100644
--- a/Documentation/hwmon/zl6100
+++ b/Documentation/hwmon/zl6100
@@ -125,7 +125,7 @@ in2_label "vmon"
in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M,
ZL9117M) pin. Reported voltage is 16x the voltage on the
pin (adjusted internally by the chip).
-in2_lcrit Critical minumum VMON/VDRV Voltage.
+in2_lcrit Critical minimum VMON/VDRV Voltage.
in2_crit Critical maximum VMON/VDRV voltage.
in2_lcrit_alarm VMON/VDRV voltage critical low alarm.
in2_crit_alarm VMON/VDRV voltage critical high alarm.