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: (24 commits)
  hwmon: (lm90) Refactor reading of config2 register
  hwmon: (lm90) Make SA56004 detection more robust
  hwmon: (lm90) Simplify handling of extended local temp register
  hwmon: (pmbus) Add client driver for LM25066, LM5064, and LM5066
  hwmon: (max34440) Add support for peak attributes
  hwmon: (max8688) Add support for peak attributes
  hwmon: (max16064) Add support for peak attributes
  hwmon: (adm1275) Add support for peak attributes
  hwmon: (pmbus) Add support for peak attributes
  hwmon: Add new attributes to sysfs ABI
  hwmon: (pmbus) Strengthen check for status register existence
  hwmon: (pmbus) Add support for virtual pages
  hwmon: (pmbus) Support reading and writing of word registers in device specific code
  hwmon: (pmbus) Increase attribute name size
  hwmon: (pmbus) Add ADP4000, NCP4200 and NCP4208 to list of supported devices
  hwmon: (pmbus) Add support for VID output voltage mode
  hwmon: (pmbus) Move PMBus drivers to drivers/hwmon/pmbus
  hwmon: (coretemp) Add core/pkg threshold support to Coretemp
  hwmon: (lm95241) Add support for LM95231
  hwmon: LM95245 driver
  ...

12 files changed, 366 insertions, 3 deletions

diff --git a/Documentation/hwmon/adm1275 b/Documentation/hwmon/adm1275
index 6a3a6476cf20..097b3ccc4be7 100644
--- a/Documentation/hwmon/adm1275
+++ b/Documentation/hwmon/adm1275
@@ -43,8 +43,8 @@ Documentation/hwmon/pmbus for details.
 Sysfs entries
 -------------
 
-The following attributes are supported. Limits are read-write; all other
-attributes are read-only.
+The following attributes are supported. Limits are read-write, history reset
+attributes are write-only, all other attributes are read-only.
 
 in1_label               "vin1" or "vout1" depending on chip variant and
                         configuration.
@@ -53,8 +53,12 @@ in1_min			Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
 in1_max                 Maximum voltage. From VOUT_OV_WARN_LIMIT register.
 in1_min_alarm           Voltage low alarm. From VOLTAGE_UV_WARNING status.
 in1_max_alarm           Voltage high alarm. From VOLTAGE_OV_WARNING status.
+in1_highest             Historical maximum voltage.
+in1_reset_history       Write any value to reset history.
 
 curr1_label             "iout1"
 curr1_input             Measured current. From READ_IOUT register.
 curr1_max               Maximum current. From IOUT_OC_WARN_LIMIT register.
 curr1_max_alarm         Current high alarm. From IOUT_OC_WARN_LIMIT register.
+curr1_highest           Historical maximum current.
+curr1_reset_history     Write any value to reset history.
diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp
index f85e913a3401..fa8776ab9b18 100644
--- a/Documentation/hwmon/coretemp
+++ b/Documentation/hwmon/coretemp
@@ -35,6 +35,13 @@ the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
 All Sysfs entries are named with their core_id (represented here by 'X').
 tempX_input      - Core temperature (in millidegrees Celsius).
 tempX_max        - All cooling devices should be turned on (on Core2).
+                   Initialized with IA32_THERM_INTERRUPT. When the CPU
+                   temperature reaches this temperature, an interrupt is
+                   generated and tempX_max_alarm is set.
+tempX_max_hyst   - If the CPU temperature falls below than temperature,
+                   an interrupt is generated and tempX_max_alarm is reset.
+tempX_max_alarm  - Set if the temperature reaches or exceeds tempX_max.
+                   Reset if the temperature drops to or below tempX_max_hyst.
 tempX_crit       - Maximum junction temperature (in millidegrees Celsius).
 tempX_crit_alarm - Set when Out-of-spec bit is set, never clears.
                    Correct CPU operation is no longer guaranteed.
diff --git a/Documentation/hwmon/lm25066 b/Documentation/hwmon/lm25066
new file mode 100644
index 000000000000..a21db81c4591
--- /dev/null
+++ b/Documentation/hwmon/lm25066
@@ -0,0 +1,90 @@
+Kernel driver max8688
+=====================
+
+Supported chips:
+  * National Semiconductor LM25066
+    Prefix: 'lm25066'
+    Addresses scanned: -
+    Datasheets:
+        http://www.national.com/pf/LM/LM25066.html
+        http://www.national.com/pf/LM/LM25066A.html
+  * National Semiconductor LM5064
+    Prefix: 'lm5064'
+    Addresses scanned: -
+    Datasheet:
+        http://www.national.com/pf/LM/LM5064.html
+  * National Semiconductor LM5066
+    Prefix: 'lm5066'
+    Addresses scanned: -
+    Datasheet:
+        http://www.national.com/pf/LM/LM5066.html
+
+Author: Guenter Roeck <guenter.roeck@ericsson.com>
+
+
+Description
+-----------
+
+This driver supports hardware montoring for National Semiconductor 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.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Limits are read-write; all other
+attributes are read-only.
+
+in1_label               "vin"
+in1_input               Measured input voltage.
+in1_average             Average measured input voltage.
+in1_min                 Minimum input voltage.
+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
+
+curr1_label             "iin"
+curr1_input             Measured input current.
+curr1_average           Average measured input current.
+curr1_max               Maximum input current.
+curr1_max_alarm         Input current high alarm.
+
+power1_label            "pin"
+power1_input            Measured input power.
+power1_average          Average measured input power.
+power1_max              Maximum input power limit.
+power1_alarm            Input power alarm
+power1_input_highest    Historical maximum power.
+power1_reset_history    Write any value to reset maximum power history.
+
+temp1_input             Measured temperature.
+temp1_max               Maximum temperature.
+temp1_crit              Critical high temperature.
+temp1_max_alarm         Chip temperature high alarm.
+temp1_crit_alarm        Chip temperature critical high alarm.
diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90
index f3efd18e87f4..9cd14cfe6515 100644
--- a/Documentation/hwmon/lm90
+++ b/Documentation/hwmon/lm90
@@ -113,7 +113,11 @@ Supported chips:
     Prefix: 'w83l771'
     Addresses scanned: I2C 0x4c
     Datasheet: Not publicly available, can be requested from Nuvoton
-
+  * Philips/NXP SA56004X
+    Prefix: 'sa56004'
+    Addresses scanned: I2C 0x48 through 0x4F
+    Datasheet: Publicly available at NXP website
+               http://ics.nxp.com/products/interface/datasheet/sa56004x.pdf
 
 Author: Jean Delvare <khali@linux-fr.org>
 
@@ -193,6 +197,9 @@ W83L771AWG/ASG
   * The AWG and ASG variants only differ in package format.
   * Diode ideality factor configuration (remote sensor) at 0xE3
 
+SA56004X:
+  * Better local resolution
+
 All temperature values are given in degrees Celsius. Resolution
 is 1.0 degree for the local temperature, 0.125 degree for the remote
 temperature, except for the MAX6657, MAX6658 and MAX6659 which have a
diff --git a/Documentation/hwmon/lm95245 b/Documentation/hwmon/lm95245
new file mode 100644
index 000000000000..cbd8aeab7124
--- /dev/null
+++ b/Documentation/hwmon/lm95245
@@ -0,0 +1,33 @@
+Kernel driver lm95245
+==================
+
+Supported chips:
+  * National Semiconductor LM95245
+    Addresses scanned: I2C 0x18, 0x19, 0x29, 0x4c, 0x4d
+    Datasheet: Publicly available at the National Semiconductor website
+               http://www.national.com/mpf/LM/LM95245.html
+
+
+Author: Alexander Stein <alexander.stein@systec-electronic.com>
+
+Description
+-----------
+
+The LM95245 is an 11-bit digital temperature sensor with a 2-wire System
+Management Bus (SMBus) interface and TruTherm technology that can monitor
+the temperature of a remote diode as well as its own temperature.
+The LM95245 can be used to very accurately monitor the temperature of
+external devices such as microprocessors.
+
+All temperature values are given in millidegrees Celsius. Local temperature
+is given within a range of -127 to +127.875 degrees. Remote temperatures are
+given within a range of -127 to +255 degrees. Resolution depends on
+temperature input and range.
+
+Each sensor has its own critical limit, but the hysteresis is common to all
+two channels.
+
+The lm95245 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/max16064 b/Documentation/hwmon/max16064
index 41728999e142..f6e8bcbfaccf 100644
--- a/Documentation/hwmon/max16064
+++ b/Documentation/hwmon/max16064
@@ -50,6 +50,8 @@ in[1-4]_min_alarm	Voltage low alarm. From VOLTAGE_UV_WARNING status.
 in[1-4]_max_alarm       Voltage high alarm. From VOLTAGE_OV_WARNING status.
 in[1-4]_lcrit_alarm     Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
 in[1-4]_crit_alarm      Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in[1-4]_highest         Historical maximum voltage.
+in[1-4]_reset_history   Write any value to reset history.
 
 temp1_input             Measured temperature. From READ_TEMPERATURE_1 register.
 temp1_max               Maximum temperature. From OT_WARN_LIMIT register.
@@ -60,3 +62,5 @@ temp1_max_alarm		Chip temperature high alarm. Set by comparing
 temp1_crit_alarm        Chip temperature critical high alarm. Set by comparing
                         READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT
                         status is set.
+temp1_highest           Historical maximum temperature.
+temp1_reset_history     Write any value to reset history.
diff --git a/Documentation/hwmon/max1668 b/Documentation/hwmon/max1668
new file mode 100644
index 000000000000..0616ed9758df
--- /dev/null
+++ b/Documentation/hwmon/max1668
@@ -0,0 +1,60 @@
+Kernel driver max1668
+=====================
+
+Supported chips:
+  * Maxim MAX1668, MAX1805 and MAX1989
+    Prefix: 'max1668'
+    Addresses scanned: I2C 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e
+    Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX1668-MAX1989.pdf
+
+Author:
+    David George <david.george@ska.ac.za>
+
+Description
+-----------
+
+This driver implements support for the Maxim MAX1668, MAX1805 and MAX1989
+chips.
+
+The three devices are very similar, but the MAX1805 has a reduced feature
+set; only two remote temperature inputs vs the four avaible on the other
+two ICs.
+
+The driver is able to distinguish between the devices and creates sysfs
+entries as follows:
+
+MAX1805, MAX1668 and MAX1989:
+
+temp1_input     ro local (ambient) temperature
+temp1_max       rw local temperature maximum threshold for alarm
+temp1_max_alarm ro local temperature maximum threshold alarm
+temp1_min       rw local temperature minimum threshold for alarm
+temp1_min_alarm ro local temperature minimum threshold alarm
+temp2_input     ro remote temperature 1
+temp2_max       rw remote temperature 1 maximum threshold for alarm
+temp2_max_alarm ro remote temperature 1 maximum threshold alarm
+temp2_min       rw remote temperature 1 minimum threshold for alarm
+temp2_min_alarm ro remote temperature 1 minimum threshold alarm
+temp3_input     ro remote temperature 2
+temp3_max       rw remote temperature 2 maximum threshold for alarm
+temp3_max_alarm ro remote temperature 2 maximum threshold alarm
+temp3_min       rw remote temperature 2 minimum threshold for alarm
+temp3_min_alarm ro remote temperature 2 minimum threshold alarm
+
+MAX1668 and MAX1989 only:
+temp4_input     ro remote temperature 3
+temp4_max       rw remote temperature 3 maximum threshold for alarm
+temp4_max_alarm ro remote temperature 3 maximum threshold alarm
+temp4_min       rw remote temperature 3 minimum threshold for alarm
+temp4_min_alarm ro remote temperature 3 minimum threshold alarm
+temp5_input     ro remote temperature 4
+temp5_max       rw remote temperature 4 maximum threshold for alarm
+temp5_max_alarm ro remote temperature 4 maximum threshold alarm
+temp5_min       rw remote temperature 4 minimum threshold for alarm
+temp5_min_alarm ro remote temperature 4 minimum threshold alarm
+
+Module Parameters
+-----------------
+
+* read_only: int
+  Set to non-zero if you wish to prevent write access to alarm thresholds.
diff --git a/Documentation/hwmon/max34440 b/Documentation/hwmon/max34440
index 6c525dd07d59..8ab51536a1eb 100644
--- a/Documentation/hwmon/max34440
+++ b/Documentation/hwmon/max34440
@@ -56,6 +56,8 @@ in[1-6]_min_alarm	Voltage low alarm. From VOLTAGE_UV_WARNING status.
 in[1-6]_max_alarm       Voltage high alarm. From VOLTAGE_OV_WARNING status.
 in[1-6]_lcrit_alarm     Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
 in[1-6]_crit_alarm      Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in[1-6]_highest         Historical maximum voltage.
+in[1-6]_reset_history   Write any value to reset history.
 
 curr[1-6]_label         "iout[1-6]".
 curr[1-6]_input         Measured current. From READ_IOUT register.
@@ -63,6 +65,8 @@ curr[1-6]_max		Maximum current. From IOUT_OC_WARN_LIMIT register.
 curr[1-6]_crit          Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
 curr[1-6]_max_alarm     Current high alarm. From IOUT_OC_WARNING status.
 curr[1-6]_crit_alarm    Current critical high alarm. From IOUT_OC_FAULT status.
+curr[1-6]_highest       Historical maximum current.
+curr[1-6]_reset_history Write any value to reset history.
 
                         in6 and curr6 attributes only exist for MAX34440.
 
@@ -75,5 +79,7 @@ temp[1-8]_max		Maximum temperature. From OT_WARN_LIMIT register.
 temp[1-8]_crit          Critical high temperature. From OT_FAULT_LIMIT register.
 temp[1-8]_max_alarm     Temperature high alarm.
 temp[1-8]_crit_alarm    Temperature critical high alarm.
+temp[1-8]_highest       Historical maximum temperature.
+temp[1-8]_reset_history Write any value to reset history.
 
                         temp7 and temp8 attributes only exist for MAX34440.
diff --git a/Documentation/hwmon/max8688 b/Documentation/hwmon/max8688
index 0ddd3a412030..71ed10a3c94e 100644
--- a/Documentation/hwmon/max8688
+++ b/Documentation/hwmon/max8688
@@ -50,6 +50,8 @@ in1_min_alarm		Voltage low alarm. From VOLTAGE_UV_WARNING status.
 in1_max_alarm           Voltage high alarm. From VOLTAGE_OV_WARNING status.
 in1_lcrit_alarm         Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
 in1_crit_alarm          Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
+in1_highest             Historical maximum voltage.
+in1_reset_history       Write any value to reset history.
 
 curr1_label             "iout1"
 curr1_input             Measured current. From READ_IOUT register.
@@ -57,6 +59,8 @@ curr1_max		Maximum current. From IOUT_OC_WARN_LIMIT register.
 curr1_crit              Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
 curr1_max_alarm         Current high alarm. From IOUT_OC_WARN_LIMIT register.
 curr1_crit_alarm        Current critical high alarm. From IOUT_OC_FAULT status.
+curr1_highest           Historical maximum current.
+curr1_reset_history     Write any value to reset history.
 
 temp1_input             Measured temperature. From READ_TEMPERATURE_1 register.
 temp1_max               Maximum temperature. From OT_WARN_LIMIT register.
@@ -67,3 +71,5 @@ temp1_max_alarm		Chip temperature high alarm. Set by comparing
 temp1_crit_alarm        Chip temperature critical high alarm. Set by comparing
                         READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT
                         status is set.
+temp1_highest           Historical maximum temperature.
+temp1_reset_history     Write any value to reset history.
diff --git a/Documentation/hwmon/ntc_thermistor b/Documentation/hwmon/ntc_thermistor
new file mode 100644
index 000000000000..3bfda94096fd
--- /dev/null
+++ b/Documentation/hwmon/ntc_thermistor
@@ -0,0 +1,93 @@
+Kernel driver ntc_thermistor
+=================
+
+Supported thermistors:
+* Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333
+  Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333'
+  Datasheet: Publicly available at Murata
+
+Other NTC thermistors can be supported simply by adding compensation
+tables; e.g., NCP15WL333 support is added by the table ncpXXwl333.
+
+Authors:
+        MyungJoo Ham <myungjoo.ham@samsung.com>
+
+Description
+-----------
+
+The NTC thermistor is a simple thermistor that requires users to provide the
+resistance and lookup the corresponding compensation table to get the
+temperature input.
+
+The NTC driver provides lookup tables with a linear approximation function
+and four circuit models with an option not to use any of the four models.
+
+The four circuit models provided are:
+
+        $: resister, [TH]: the thermistor
+
+ 1. connect = NTC_CONNECTED_POSITIVE, pullup_ohm > 0
+
+   [pullup_uV]
+       |    |
+      [TH]  $ (pullup_ohm)
+       |    |
+       +----+-----------------------[read_uV]
+       |
+       $ (pulldown_ohm)
+       |
+      --- (ground)
+
+ 2. connect = NTC_CONNECTED_POSITIVE, pullup_ohm = 0 (not-connected)
+
+   [pullup_uV]
+       |
+      [TH]
+       |
+       +----------------------------[read_uV]
+       |
+       $ (pulldown_ohm)
+       |
+      --- (ground)
+
+ 3. connect = NTC_CONNECTED_GROUND, pulldown_ohm > 0
+
+   [pullup_uV]
+       |
+       $ (pullup_ohm)
+       |
+       +----+-----------------------[read_uV]
+       |    |
+      [TH]  $ (pulldown_ohm)
+       |    |
+      -------- (ground)
+
+ 4. connect = NTC_CONNECTED_GROUND, pulldown_ohm = 0 (not-connected)
+
+   [pullup_uV]
+       |
+       $ (pullup_ohm)
+       |
+       +----------------------------[read_uV]
+       |
+      [TH]
+       |
+      --- (ground)
+
+When one of the four circuit models is used, read_uV, pullup_uV, pullup_ohm,
+pulldown_ohm, and connect should be provided. When none of the four models
+are suitable or the user can get the resistance directly, the user should
+provide read_ohm and _not_ provide the others.
+
+Sysfs Interface
+---------------
+name            the mandatory global attribute, the thermistor name.
+
+temp1_type      always 4 (thermistor)
+                RO
+
+temp1_input     measure the temperature and provide the measured value.
+                (reading this file initiates the reading procedure.)
+                RO
+
+Note that each NTC thermistor has only _one_ thermistor; thus, only temp1 exists.
diff --git a/Documentation/hwmon/pmbus b/Documentation/hwmon/pmbus
index 5e462fc7f99b..c36c1c1a62bb 100644
--- a/Documentation/hwmon/pmbus
+++ b/Documentation/hwmon/pmbus
@@ -13,6 +13,13 @@ Supported chips:
     Prefix: 'ltc2978'
     Addresses scanned: -
     Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf
+  * ON Semiconductor ADP4000, NCP4200, NCP4208
+    Prefixes: 'adp4000', 'ncp4200', 'ncp4208'
+    Addresses scanned: -
+    Datasheets:
+        http://www.onsemi.com/pub_link/Collateral/ADP4000-D.PDF
+        http://www.onsemi.com/pub_link/Collateral/NCP4200-D.PDF
+        http://www.onsemi.com/pub_link/Collateral/JUNE%202009-%20REV.%200.PDF
   * Generic PMBus devices
     Prefix: 'pmbus'
     Addresses scanned: -
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index 8f63c244f1aa..a4aa8f600e09 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -139,6 +139,29 @@ in[0-*]_input	Voltage input value.
                 thumb: drivers should report the voltage values at the
                 "pins" of the chip.
 
+in[0-*]_average
+                Average voltage
+                Unit: millivolt
+                RO
+
+in[0-*]_lowest
+                Historical minimum voltage
+                Unit: millivolt
+                RO
+
+in[0-*]_highest
+                Historical maximum voltage
+                Unit: millivolt
+                RO
+
+in[0-*]_reset_history
+                Reset inX_lowest and inX_highest
+                WO
+
+in_reset_history
+                Reset inX_lowest and inX_highest for all sensors
+                WO
+
 in[0-*]_label   Suggested voltage channel label.
                 Text string
                 Should only be created if the driver has hints about what
@@ -407,6 +430,29 @@ curr[1-*]_input	Current input value
                 Unit: milliampere
                 RO
 
+curr[1-*]_average
+                Average current use
+                Unit: milliampere
+                RO
+
+curr[1-*]_lowest
+                Historical minimum current
+                Unit: milliampere
+                RO
+
+curr[1-*]_highest
+                Historical maximum current
+                Unit: milliampere
+                RO
+
+curr[1-*]_reset_history
+                Reset currX_lowest and currX_highest
+                WO
+
+curr_reset_history
+                Reset currX_lowest and currX_highest for all sensors
+                WO
+
 Also see the Alarms section for status flags associated with currents.
 
 *********