diff options
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/ad7314 | 25 | ||||
| -rw-r--r-- | Documentation/hwmon/adm1275 | 48 | ||||
| -rw-r--r-- | Documentation/hwmon/coretemp | 19 | ||||
| -rw-r--r-- | Documentation/hwmon/exynos4_tmu | 81 | ||||
| -rw-r--r-- | Documentation/hwmon/it87 | 3 | ||||
| -rw-r--r-- | Documentation/hwmon/lm25066 | 90 | ||||
| -rw-r--r-- | Documentation/hwmon/lm75 | 61 | ||||
| -rw-r--r-- | Documentation/hwmon/lm78 | 3 | ||||
| -rw-r--r-- | Documentation/hwmon/lm90 | 9 | ||||
| -rw-r--r-- | Documentation/hwmon/lm95245 | 33 | ||||
| -rw-r--r-- | Documentation/hwmon/ltc2978 | 103 | ||||
| -rw-r--r-- | Documentation/hwmon/max16064 | 4 | ||||
| -rw-r--r-- | Documentation/hwmon/max16065 | 7 | ||||
| -rw-r--r-- | Documentation/hwmon/max1668 | 60 | ||||
| -rw-r--r-- | Documentation/hwmon/max34440 | 6 | ||||
| -rw-r--r-- | Documentation/hwmon/max8688 | 6 | ||||
| -rw-r--r-- | Documentation/hwmon/ntc_thermistor | 93 | ||||
| -rw-r--r-- | Documentation/hwmon/pmbus | 18 | ||||
| -rw-r--r-- | Documentation/hwmon/pmbus-core | 283 | ||||
| -rw-r--r-- | Documentation/hwmon/sch5636 | 31 | ||||
| -rw-r--r-- | Documentation/hwmon/sysfs-interface | 46 | ||||
| -rw-r--r-- | Documentation/hwmon/w83627ehf | 28 | ||||
| -rw-r--r-- | Documentation/hwmon/zl6100 | 123 |
23 files changed, 1117 insertions, 63 deletions
diff --git a/Documentation/hwmon/ad7314 b/Documentation/hwmon/ad7314 new file mode 100644 index 0000000..1912549 --- /dev/null +++ b/Documentation/hwmon/ad7314 @@ -0,0 +1,25 @@ +Kernel driver ad7314 +==================== + +Supported chips: + * Analog Devices AD7314 + Prefix: 'ad7314' + Datasheet: Publicly available at Analog Devices website. + * Analog Devices ADT7301 + Prefix: 'adt7301' + Datasheet: Publicly available at Analog Devices website. + * Analog Devices ADT7302 + Prefix: 'adt7302' + Datasheet: Publicly available at Analog Devices website. + +Description +----------- + +Driver supports the above parts. The ad7314 has a 10 bit +sensor with 1lsb = 0.25 degrees centigrade. The adt7301 and +adt7302 have 14 bit sensors with 1lsb = 0.03125 degrees centigrade. + +Notes +----- + +Currently power down mode is not supported. diff --git a/Documentation/hwmon/adm1275 b/Documentation/hwmon/adm1275 index 6a3a647..ab70d96 100644 --- a/Documentation/hwmon/adm1275 +++ b/Documentation/hwmon/adm1275 @@ -6,6 +6,10 @@ Supported chips: Prefix: 'adm1275' Addresses scanned: - Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf + * Analog Devices ADM1276 + Prefix: 'adm1276' + Addresses scanned: - + Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf Author: Guenter Roeck <guenter.roeck@ericsson.com> @@ -13,13 +17,13 @@ Author: Guenter Roeck <guenter.roeck@ericsson.com> Description ----------- -This driver supports hardware montoring for Analog Devices ADM1275 Hot-Swap -Controller and Digital Power Monitor. +This driver supports hardware montoring for Analog Devices ADM1275 and ADM1276 +Hot-Swap Controller and Digital Power Monitor. -The ADM1275 is a hot-swap controller that allows a circuit board to be removed -from or inserted into a live backplane. It also features current and voltage -readback via an integrated 12-bit analog-to-digital converter (ADC), accessed -using a PMBus. interface. +ADM1275 and ADM1276 are hot-swap controllers that allow a circuit board to be +removed from or inserted into a live backplane. They also feature current and +voltage readback via an integrated 12-bit analog-to-digital converter (ADC), +accessed using a PMBus interface. The driver is a client driver to the core PMBus driver. Please see Documentation/hwmon/pmbus for details on PMBus client drivers. @@ -43,18 +47,30 @@ 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. -in1_input Measured voltage. From READ_VOUT register. -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_input Measured voltage. +in1_min Minumum Voltage. +in1_max Maximum voltage. +in1_min_alarm Voltage low alarm. +in1_max_alarm Voltage high alarm. +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_input Measured current. +curr1_max Maximum current. +curr1_max_alarm Current high alarm. +curr1_lcrit Critical minimum current. Depending on the chip + configuration, either curr1_lcrit or curr1_crit is + supported, but not both. +curr1_lcrit_alarm Critical current low alarm. +curr1_crit Critical maximum current. Depending on the chip + configuration, either curr1_lcrit or curr1_crit is + supported, but not both. +curr1_crit_alarm Critical current high alarm. +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 f85e913..eb5502e 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -6,7 +6,9 @@ Supported chips: Prefix: 'coretemp' CPUID: family 0x6, models 0xe (Pentium M DC), 0xf (Core 2 DC 65nm), 0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm), - 0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield) + 0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield), + 0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom), + 0x36 (Cedar Trail Atom) Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3A: System Programming Guide http://softwarecommunity.intel.com/Wiki/Mobility/720.htm @@ -42,9 +44,10 @@ tempX_label - Contains string "Core X", where X is processor number. For Package temp, this will be "Physical id Y", where Y is the package number. -The TjMax temperature is set to 85 degrees C if undocumented model specific -register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as -(sometimes) documented in processor datasheet. +On CPU models which support it, TjMax is read from a model-specific register. +On other models, it is set to an arbitrary value based on weak heuristics. +If these heuristics don't work for you, you can pass the correct TjMax value +as a module parameter (tjmax). Appendix A. Known TjMax lists (TBD): Some information comes from ark.intel.com @@ -64,6 +67,11 @@ Process Processor TjMax(C) U3400 105 P4505/P4500 90 +32nm Atom Processors + Z2460 90 + D2700/2550/2500 100 + N2850/2800/2650/2600 100 + 45nm Xeon Processors 5400 Quad-Core X5492, X5482, X5472, X5470, X5460, X5450 85 E5472, E5462, E5450/40/30/20/10/05 85 @@ -84,6 +92,9 @@ Process Processor TjMax(C) N475/470/455/450 100 N280/270 90 330/230 125 + E680/660/640/620 90 + E680T/660T/640T/620T 110 + CE4170/4150/4110 110 45nm Core2 Processors Solo ULV SU3500/3300 100 diff --git a/Documentation/hwmon/exynos4_tmu b/Documentation/hwmon/exynos4_tmu new file mode 100644 index 0000000..c3c6b41 --- /dev/null +++ b/Documentation/hwmon/exynos4_tmu @@ -0,0 +1,81 @@ +Kernel driver exynos4_tmu +================= + +Supported chips: +* ARM SAMSUNG EXYNOS4 series of SoC + Prefix: 'exynos4-tmu' + Datasheet: Not publicly available + +Authors: Donggeun Kim <dg77.kim@samsung.com> + +Description +----------- + +This driver allows to read temperature inside SAMSUNG EXYNOS4 series of SoC. + +The chip only exposes the measured 8-bit temperature code value +through a register. +Temperature can be taken from the temperature code. +There are three equations converting from temperature to temperature code. + +The three equations are: + 1. Two point trimming + Tc = (T - 25) * (TI2 - TI1) / (85 - 25) + TI1 + + 2. One point trimming + Tc = T + TI1 - 25 + + 3. No trimming + Tc = T + 50 + + Tc: Temperature code, T: Temperature, + TI1: Trimming info for 25 degree Celsius (stored at TRIMINFO register) + Temperature code measured at 25 degree Celsius which is unchanged + TI2: Trimming info for 85 degree Celsius (stored at TRIMINFO register) + Temperature code measured at 85 degree Celsius which is unchanged + +TMU(Thermal Management Unit) in EXYNOS4 generates interrupt +when temperature exceeds pre-defined levels. +The maximum number of configurable threshold is four. +The threshold levels are defined as follows: + Level_0: current temperature > trigger_level_0 + threshold + Level_1: current temperature > trigger_level_1 + threshold + Level_2: current temperature > trigger_level_2 + threshold + Level_3: current temperature > trigger_level_3 + threshold + + The threshold and each trigger_level are set + through the corresponding registers. + +When an interrupt occurs, this driver notify user space of +one of four threshold levels for the interrupt +through kobject_uevent_env and sysfs_notify functions. +Although an interrupt condition for level_0 can be set, +it is not notified to user space through sysfs_notify function. + +Sysfs Interface +--------------- +name name of the temperature sensor + RO + +temp1_input temperature + RO + +temp1_max temperature for level_1 interrupt + RO + +temp1_crit temperature for level_2 interrupt + RO + +temp1_emergency temperature for level_3 interrupt + RO + +temp1_max_alarm alarm for level_1 interrupt + RO + +temp1_crit_alarm + alarm for level_2 interrupt + RO + +temp1_emergency_alarm + alarm for level_3 interrupt + RO diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index 38425f0..6f496a5 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 @@ -76,7 +76,8 @@ IT8718F, IT8720F, IT8721F, IT8726F, IT8758E and SiS950 chips. These chips are 'Super I/O chips', supporting floppy disks, infrared ports, joysticks and other miscellaneous stuff. For hardware monitoring, they include an 'environment controller' with 3 temperature sensors, 3 fan -rotation speed sensors, 8 voltage sensors, and associated alarms. +rotation speed sensors, 8 voltage sensors, associated alarms, and chassis +intrusion detection. The IT8712F and IT8716F additionally feature VID inputs, used to report the Vcore voltage of the processor. The early IT8712F have 5 VID pins, diff --git a/Documentation/hwmon/lm25066 b/Documentation/hwmon/lm25066 new file mode 100644 index 0000000..a21db81 --- /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/lm75 b/Documentation/hwmon/lm75 index a179040..c91a1d1 100644 --- a/Documentation/hwmon/lm75 +++ b/Documentation/hwmon/lm75 @@ -12,26 +12,46 @@ Supported chips: Addresses scanned: I2C 0x48 - 0x4f Datasheet: Publicly available at the National Semiconductor website http://www.national.com/ - * Dallas Semiconductor DS75 - Prefix: 'lm75' - Addresses scanned: I2C 0x48 - 0x4f - Datasheet: Publicly available at the Dallas Semiconductor website - http://www.maxim-ic.com/ - * Dallas Semiconductor DS1775 - Prefix: 'lm75' - Addresses scanned: I2C 0x48 - 0x4f + * Dallas Semiconductor DS75, DS1775 + Prefixes: 'ds75', 'ds1775' + Addresses scanned: none Datasheet: Publicly available at the Dallas Semiconductor website http://www.maxim-ic.com/ * Maxim MAX6625, MAX6626 - Prefix: 'lm75' - Addresses scanned: I2C 0x48 - 0x4b + Prefixes: 'max6625', 'max6626' + Addresses scanned: none Datasheet: Publicly available at the Maxim website http://www.maxim-ic.com/ * Microchip (TelCom) TCN75 Prefix: 'lm75' - Addresses scanned: I2C 0x48 - 0x4f + Addresses scanned: none + Datasheet: Publicly available at the Microchip website + http://www.microchip.com/ + * Microchip MCP9800, MCP9801, MCP9802, MCP9803 + Prefix: 'mcp980x' + Addresses scanned: none Datasheet: Publicly available at the Microchip website http://www.microchip.com/ + * Analog Devices ADT75 + Prefix: 'adt75' + Addresses scanned: none + Datasheet: Publicly available at the Analog Devices website + http://www.analog.com/adt75 + * ST Microelectronics STDS75 + Prefix: 'stds75' + Addresses scanned: none + Datasheet: Publicly available at the ST website + http://www.st.com/internet/analog/product/121769.jsp + * Texas Instruments TMP100, TMP101, TMP105, TMP75, TMP175, TMP275 + Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp175', 'tmp75', 'tmp275' + Addresses scanned: none + Datasheet: Publicly available at the Texas Instruments website + http://www.ti.com/product/tmp100 + http://www.ti.com/product/tmp101 + http://www.ti.com/product/tmp105 + http://www.ti.com/product/tmp75 + http://www.ti.com/product/tmp175 + http://www.ti.com/product/tmp275 Author: Frodo Looijaard <frodol@dds.nl> @@ -50,21 +70,16 @@ range of -55 to +125 degrees. The LM75 only updates its values each 1.5 seconds; reading it more often will do no harm, but will return 'old' values. -The LM75 is usually used in combination with LM78-like chips, to measure -the temperature of the processor(s). - -The DS75, DS1775, MAX6625, and MAX6626 are supported as well. -They are not distinguished from an LM75. While most of these chips -have three additional bits of accuracy (12 vs. 9 for the LM75), -the additional bits are not supported. Not only that, but these chips will -not be detected if not in 9-bit precision mode (use the force parameter if -needed). - -The TCN75 is supported as well, and is not distinguished from an LM75. +The original LM75 was typically used in combination with LM78-like chips +on PC motherboards, to measure the temperature of the processor(s). Clones +are now used in various embedded designs. The LM75 is essentially an industry standard; there may be other LM75 clones not listed here, with or without various enhancements, -that are supported. +that are supported. The clones are not detected by the driver, unless +they reproduce the exact register tricks of the original LM75, and must +therefore be instantiated explicitly. The specific enhancements (such as +higher resolution) are not currently supported by the driver. The LM77 is not supported, contrary to what we pretended for a long time. Both chips are simply not compatible, value encoding differs. diff --git a/Documentation/hwmon/lm78 b/Documentation/hwmon/lm78 index 60932e2..2bdc881 100644 --- a/Documentation/hwmon/lm78 +++ b/Documentation/hwmon/lm78 @@ -13,7 +13,8 @@ Supported chips: Datasheet: Publicly available at the National Semiconductor website http://www.national.com/ -Author: Frodo Looijaard <frodol@dds.nl> +Authors: Frodo Looijaard <frodol@dds.nl> + Jean Delvare <khali@linux-fr.org> Description ----------- diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90 index f3efd18..9cd14cfe 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 0000000..cbd8aea --- /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/ltc2978 b/Documentation/hwmon/ltc2978 new file mode 100644 index 0000000..c365f9b --- /dev/null +++ b/Documentation/hwmon/ltc2978 @@ -0,0 +1,103 @@ +Kernel driver ltc2978 +===================== + +Supported chips: + * Linear Technology LTC2978 + Prefix: 'ltc2978' + Addresses scanned: - + Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf + * Linear Technology LTC3880 + Prefix: 'ltc3880' + Addresses scanned: - + Datasheet: http://cds.linear.com/docs/Datasheet/3880f.pdf + +Author: Guenter Roeck <guenter.roeck@ericsson.com> + + +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. + + +Usage Notes +----------- + +This driver does not probe for PMBus devices. You will have to instantiate +devices explicitly. + +Example: the following commands will load the driver for an LTC2978 at address +0x60 on I2C bus #1: + +# modprobe ltc2978 +# echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device + + +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_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_crit_alarm Input voltage critical high alarm. +in1_lowest Lowest input voltage. 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. + On LTC2978, only one temperature measurement is + supported and reflects the internal 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. +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. diff --git a/Documentation/hwmon/max16064 b/Documentation/hwmon/max16064 index 4172899..f6e8bcb 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/max16065 b/Documentation/hwmon/max16065 index 44b4f61..c11f64a 100644 --- a/Documentation/hwmon/max16065 +++ b/Documentation/hwmon/max16065 @@ -62,6 +62,13 @@ can be safely used to identify the chip. You will have to instantiate the devices explicitly. Please see Documentation/i2c/instantiating-devices for details. +WARNING: Do not access chip registers using the i2cdump command, and do not use +any of the i2ctools commands on a command register (0xa5 to 0xac). The chips +supported by this driver interpret any access to a command register (including +read commands) as request to execute the command in question. This may result in +power loss, board resets, and/or Flash corruption. Worst case, your board may +turn into a brick. + Sysfs entries ------------- diff --git a/Documentation/hwmon/max1668 b/Documentation/hwmon/max1668 new file mode 100644 index 0000000..0616ed9 --- /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 6c525dd..8ab5153 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 0ddd3a4..71ed10a 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 0000000..3bfda94 --- /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 5e462fc..15ac911 100644 --- a/Documentation/hwmon/pmbus +++ b/Documentation/hwmon/pmbus @@ -8,11 +8,21 @@ Supported chips: Addresses scanned: - Datasheet: http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146395 - * Linear Technology LTC2978 - Octal PMBus Power Supply Monitor and Controller - Prefix: 'ltc2978' + * ON Semiconductor ADP4000, NCP4200, NCP4208 + Prefixes: 'adp4000', 'ncp4200', 'ncp4208' Addresses scanned: - - Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf + 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 + * Lineage Power + Prefixes: 'pdt003', 'pdt006', 'pdt012', 'udt020' + Addresses scanned: - + Datasheets: + http://www.lineagepower.com/oem/pdf/PDT003A0X.pdf + http://www.lineagepower.com/oem/pdf/PDT006A0X.pdf + http://www.lineagepower.com/oem/pdf/PDT012A0X.pdf + http://www.lineagepower.com/oem/pdf/UDT020A0X.pdf * Generic PMBus devices Prefix: 'pmbus' Addresses scanned: - diff --git a/Documentation/hwmon/pmbus-core b/Documentation/hwmon/pmbus-core new file mode 100644 index 0000000..31e4720 --- /dev/null +++ b/Documentation/hwmon/pmbus-core @@ -0,0 +1,283 @@ +PMBus core driver and internal API +================================== + +Introduction +============ + +[from pmbus.org] The Power Management Bus (PMBus) is an open standard +power-management protocol with a fully defined command language that facilitates +communication with power converters and other devices in a power system. The +protocol is implemented over the industry-standard SMBus serial interface and +enables programming, control, and real-time monitoring of compliant power +conversion products. This flexible and highly versatile standard allows for +communication between devices based on both analog and digital technologies, and +provides true interoperability which will reduce design complexity and shorten +time to market for power system designers. Pioneered by leading power supply and +semiconductor companies, this open power system standard is maintained and +promoted by the PMBus Implementers Forum (PMBus-IF), comprising 30+ adopters +with the objective to provide support to, and facilitate adoption among, users. + +Unfortunately, while PMBus commands are standardized, there are no mandatory +commands, and manufacturers can add as many non-standard commands as they like. +Also, different PMBUs devices act differently if non-supported commands are +executed. Some devices return an error, some devices return 0xff or 0xffff and +set a status error flag, and some devices may simply hang up. + +Despite all those difficulties, a generic PMBus device driver is still useful +and supported since kernel version 2.6.39. However, it was necessary to support +device specific extensions in addition to the core PMBus driver, since it is +simply unknown what new device specific functionality PMBus device developers +come up with next. + +To make device specific extensions as scalable as possible, and to avoid having +to modify the core PMBus driver repeatedly for new devices, the PMBus driver was +split into core, generic, and device specific code. The core code (in +pmbus_core.c) provides generic functionality. The generic code (in pmbus.c) +provides support for generic PMBus devices. Device specific code is responsible +for device specific initialization and, if needed, maps device specific +functionality into generic functionality. This is to some degree comparable +to PCI code, where generic code is augmented as needed with quirks for all kinds +of devices. + +PMBus device capabilities auto-detection +======================================== + +For generic PMBus devices, code in pmbus.c attempts to auto-detect all supported +PMBus commands. Auto-detection is somewhat limited, since there are simply too +many variables to consider. For example, it is almost impossible to autodetect +which PMBus commands are paged and which commands are replicated across all +pages (see the PMBus specification for details on multi-page PMBus devices). + +For this reason, it often makes sense to provide a device specific driver if not +all commands can be auto-detected. The data structures in this driver can be +used to inform the core driver about functionality supported by individual +chips. + +Some commands are always auto-detected. This applies to all limit commands +(lcrit, min, max, and crit attributes) as well as associated alarm attributes. +Limits and alarm attributes are auto-detected because there are simply too many +possible combinations to provide a manual configuration interface. + +PMBus internal API +================== + +The API between core and device specific PMBus code is defined in +drivers/hwmon/pmbus/pmbus.h. In addition to the internal API, pmbus.h defines +standard PMBus commands and virtual PMBus commands. + +Standard PMBus commands +----------------------- + +Standard PMBus commands (commands values 0x00 to 0xff) are defined in the PMBUs +specification. + +Virtual PMBus commands +---------------------- + +Virtual PMBus commands are provided to enable support for non-standard +functionality which has been implemented by several chip vendors and is thus +desirable to support. + +Virtual PMBus commands start with command value 0x100 and can thus easily be +distinguished from standard PMBus commands (which can not have values larger +than 0xff). Support for virtual PMBus commands is device specific and thus has +to be implemented in device specific code. + +Virtual commands are named PMBUS_VIRT_xxx and start with PMBUS_VIRT_BASE. All +virtual commands are word sized. + +There are currently two types of virtual commands. + +- READ commands are read-only; writes are either ignored or return an error. +- RESET commands are read/write. Reading reset registers returns zero + (used for detection), writing any value causes the associated history to be + reset. + +Virtual commands have to be handled in device specific driver code. Chip driver +code returns non-negative values if a virtual command is supported, or a +negative error code if not. The chip driver may return -ENODATA or any other +Linux error code in this case, though an error code other than -ENODATA is +handled more efficiently and thus preferred. Either case, the calling PMBus +core code will abort if the chip driver returns an error code when reading +or writing virtual registers (in other words, the PMBus core code will never +send a virtual command to a chip). + +PMBus driver information +------------------------ + +PMBus driver information, defined in struct pmbus_driver_info, is the main means +for device specific drivers to pass information to the core PMBus driver. +Specifically, it provides the following information. + +- For devices supporting its data in Direct Data Format, it provides coefficients + for converting register values into normalized data. This data is usually + provided by chip manufacturers in device datasheets. +- Supported chip functionality can be provided to the core driver. This may be + necessary for chips which react badly if non-supported commands are executed, + and/or to speed up device detection and initialization. +- Several function entry points are provided to support overriding and/or + augmenting generic command execution. This functionality can be used to map + non-standard PMBus commands to standard commands, or to augment standard + command return values with device specific information. + + API functions + ------------- + + Functions provided by chip driver + --------------------------------- + + All functions return the command return value (read) or zero (write) if + successful. A return value of -ENODATA indicates that there is no manufacturer + specific command, but that a standard PMBus command may exist. Any other + negative return value indicates that the commands does not exist for this + chip, and that no attempt should be made to read or write the standard + command. + + As mentioned above, an exception to this rule applies to virtual commands, + which _must_ be handled in driver specific code. See "Virtual PMBus Commands" + above for more details. + + Command execution in the core PMBus driver code is as follows. + + if (chip_access_function) { + status = chip_access_function(); + if (status != -ENODATA) + return status; + } + if (command >= PMBUS_VIRT_BASE) /* For word commands/registers only */ + return -EINVAL; + return generic_access(); + + Chip drivers may provide pointers to the following functions in struct + pmbus_driver_info. All functions are optional. + + int (*read_byte_data)(struct i2c_client *client, int page, int reg); + + Read byte from page <page>, register <reg>. + <page> may be -1, which means "current page". + + int (*read_word_data)(struct i2c_client *client, int page, int reg); + + Read word from page <page>, register <reg>. + + int (*write_word_data)(struct i2c_client *client, int page, int reg, + u16 word); + + Write word to page <page>, register <reg>. + + int (*write_byte)(struct i2c_client *client, int page, u8 value); + + Write byte to page <page>, register <reg>. + <page> may be -1, which means "current page". + + int (*identify)(struct i2c_client *client, struct pmbus_driver_info *info); + + Determine supported PMBus functionality. This function is only necessary + if a chip driver supports multiple chips, and the chip functionality is not + pre-determined. It is currently only used by the generic pmbus driver + (pmbus.c). + + Functions exported by core driver + --------------------------------- + + Chip drivers are expected to use the following functions to read or write + PMBus registers. Chip drivers may also use direct I2C commands. If direct I2C + commands are used, the chip driver code must not directly modify the current + page, since the selected page is cached in the core driver and the core driver + will assume that it is selected. Using pmbus_set_page() to select a new page + is mandatory. + + int pmbus_set_page(struct i2c_client *client, u8 page); + + Set PMBus page register to <page> for subsequent commands. + + int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg); + + Read word data from <page>, <reg>. Similar to i2c_smbus_read_word_data(), but + selects page first. + + int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, + u16 word); + + Write word data to <page>, <reg>. Similar to i2c_smbus_write_word_data(), but + selects page first. + + int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg); + + Read byte data from <page>, <reg>. Similar to i2c_smbus_read_byte_data(), but + selects page first. <page> may be -1, which means "current page". + + int pmbus_write_byte(struct i2c_client *client, int page, u8 value); + + Write byte data to <page>, <reg>. Similar to i2c_smbus_write_byte(), but + selects page first. <page> may be -1, which means "current page". + + void pmbus_clear_faults(struct i2c_client *client); + + Execute PMBus "Clear Fault" command on all chip pages. + This function calls the device specific write_byte function if defined. + Therefore, it must _not_ be called from that function. + + bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg); + + Check if byte register exists. Return true if the register exists, false + otherwise. + This function calls the device specific write_byte function if defined to + obtain the chip status. Therefore, it must _not_ be called from that function. + + bool pmbus_check_word_register(struct i2c_client *client, int page, int reg); + + Check if word register exists. Return true if the register exists, false + otherwise. + This function calls the device specific write_byte function if defined to + obtain the chip status. Therefore, it must _not_ be called from that function. + + int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, + struct pmbus_driver_info *info); + + Execute probe function. Similar to standard probe function for other drivers, + with the pointer to struct pmbus_driver_info as additional argument. Calls + identify function if supported. Must only be called from device probe + function. + + void pmbus_do_remove(struct i2c_client *client); + + Execute driver remove function. Similar to standard driver remove function. + + const struct pmbus_driver_info + *pmbus_get_driver_info(struct i2c_client *client); + + Return pointer to struct pmbus_driver_info as passed to pmbus_do_probe(). + + +PMBus driver platform data +========================== + +PMBus platform data is defined in include/linux/i2c/pmbus.h. Platform data +currently only provides a flag field with a single bit used. + +#define PMBUS_SKIP_STATUS_CHECK (1 << 0) + +struct pmbus_platform_data { + u32 flags; /* Device specific flags */ +}; + + +Flags +----- + +PMBUS_SKIP_STATUS_CHECK + +During register detection, skip checking the status register for +communication or command errors. + +Some PMBus chips respond with valid data when trying to read an unsupported +register. For such chips, checking the status register is mandatory when +trying to determine if a chip register exists or not. +Other PMBus chips don't support the STATUS_CML register, or report +communication errors for no explicable reason. For such chips, checking the +status register must be disabled. + +Some i2c controllers do not support single-byte commands (write commands with +no data, i2c_smbus_write_byte()). With such controllers, clearing the status +register is impossible, and the PMBUS_SKIP_STATUS_CHECK flag must be set. diff --git a/Documentation/hwmon/sch5636 b/Documentation/hwmon/sch5636 new file mode 100644 index 0000000..f83bd1c --- /dev/null +++ b/Documentation/hwmon/sch5636 @@ -0,0 +1,31 @@ +Kernel driver sch5636 +===================== + +Supported chips: + * SMSC SCH5636 + Prefix: 'sch5636' + Addresses scanned: none, address read from Super I/O config space + +Author: Hans de Goede <hdegoede@redhat.com> + + +Description +----------- + +SMSC SCH5636 Super I/O chips include an embedded microcontroller for +hardware monitoring solutions, allowing motherboard manufacturers to create +their own custom hwmon solution based upon the SCH5636. + +Currently the sch5636 driver only supports the Fujitsu Theseus SCH5636 based +hwmon solution. The sch5636 driver runs a sanity check on loading to ensure +it is dealing with a Fujitsu Theseus and not with another custom SCH5636 based +hwmon solution. + +The Fujitsu Theseus can monitor up to 5 voltages, 8 fans and 16 +temperatures. Note that the driver detects how many fan headers / +temperature sensors are actually implemented on the motherboard, so you will +likely see fewer temperature and fan inputs. + +An application note describing the Theseus' registers, as well as an +application note describing the protocol for communicating with the +microcontroller is available upon request. Please mail me if you want a copy. diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index 8f63c24..a4aa8f6 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. ********* diff --git a/Documentation/hwmon/w83627ehf b/Documentation/hwmon/w83627ehf index 76ffef9..75f3155 100644 --- a/Documentation/hwmon/w83627ehf +++ b/Documentation/hwmon/w83627ehf @@ -14,6 +14,10 @@ Supported chips: Prefix: 'w83627dhg' Addresses scanned: ISA address retrieved from Super I/O registers Datasheet: not available + * Winbond W83627UHG + Prefix: 'w83627uhg' + Addresses scanned: ISA address retrieved from Super I/O registers + Datasheet: available from www.nuvoton.com * Winbond W83667HG Prefix: 'w83667hg' Addresses scanned: ISA address retrieved from Super I/O registers @@ -42,14 +46,13 @@ Description ----------- This driver implements support for the Winbond W83627EHF, W83627EHG, -W83627DHG, W83627DHG-P, W83667HG, W83667HG-B, W83667HG-I (NCT6775F), -and NCT6776F super I/O chips. We will refer to them collectively as -Winbond chips. - -The chips implement three temperature sensors (up to four for 667HG-B, and nine -for NCT6775F and NCT6776F), five fan rotation speed sensors, ten analog voltage -sensors (only nine for the 627DHG), one VID (6 pins for the 627EHF/EHG, 8 pins -for the 627DHG and 667HG), alarms with beep warnings (control unimplemented), +W83627DHG, W83627DHG-P, W83627UHG, W83667HG, W83667HG-B, W83667HG-I +(NCT6775F), and NCT6776F super I/O chips. We will refer to them collectively +as Winbond chips. + +The chips implement 3 to 4 temperature sensors (9 for NCT6775F and NCT6776F), +2 to 5 fan rotation speed sensors, 8 to 10 analog voltage sensors, one VID +(except for 627UHG), alarms with beep warnings (control unimplemented), and some automatic fan regulation strategies (plus manual fan control mode). The temperature sensor sources on W82677HG-B, NCT6775F, and NCT6776F are @@ -86,17 +89,16 @@ follows: temp1 -> pwm1 temp2 -> pwm2 -temp3 -> pwm3 +temp3 -> pwm3 (not on 627UHG) prog -> pwm4 (not on 667HG and 667HG-B; the programmable setting is not supported by the driver) /sys files ---------- -name - this is a standard hwmon device entry. For the W83627EHF and W83627EHG, - it is set to "w83627ehf", for the W83627DHG it is set to "w83627dhg", - for the W83667HG and W83667HG-B it is set to "w83667hg", for NCT6775F it - is set to "nct6775", and for NCT6776F it is set to "nct6776". +name - this is a standard hwmon device entry, it contains the name of + the device (see the prefix in the list of supported devices at + the top of this file) pwm[1-4] - this file stores PWM duty cycle or DC value (fan speed) in range: 0 (stop) to 255 (full) diff --git a/Documentation/hwmon/zl6100 b/Documentation/hwmon/zl6100 new file mode 100644 index 0000000..c5e1a5b --- /dev/null +++ b/Documentation/hwmon/zl6100 @@ -0,0 +1,123 @@ +Kernel driver zl6100 +==================== + +Supported chips: + * Intersil / Zilker Labs ZL2004 + Prefix: 'zl2004' + Addresses scanned: - + Datasheet: http://www.intersil.com/data/fn/fn6847.pdf + * Intersil / Zilker Labs ZL2006 + Prefix: 'zl2006' + Addresses scanned: - + Datasheet: http://www.intersil.com/data/fn/fn6850.pdf + * Intersil / Zilker Labs ZL2008 + Prefix: 'zl2008' + Addresses scanned: - + Datasheet: http://www.intersil.com/data/fn/fn6859.pdf + * Intersil / Zilker Labs ZL2105 + Prefix: 'zl2105' + Addresses scanned: - + Datasheet: http://www.intersil.com/data/fn/fn6851.pdf + * Intersil / Zilker Labs ZL2106 + Prefix: 'zl2106' + Addresses scanned: - + Datasheet: http://www.intersil.com/data/fn/fn6852.pdf + * Intersil / Zilker Labs ZL6100 + Prefix: 'zl6100' + Addresses scanned: - + Datasheet: http://www.intersil.com/data/fn/fn6876.pdf + * Intersil / Zilker Labs ZL6105 + Prefix: 'zl6105' + Addresses scanned: - + Datasheet: http://www.intersil.com/data/fn/fn6906.pdf + +Author: Guenter Roeck <guenter.roeck@ericsson.com> + + +Description +----------- + +This driver supports hardware montoring for Intersil / Zilker Labs ZL6100 and +compatible digital DC-DC controllers. + +The driver is a client driver to the core PMBus driver. Please see +Documentation/hwmon/pmbus and Documentation.hwmon/pmbus-core 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. + +WARNING: Do not access chip registers using the i2cdump command, and do not use +any of the i2ctools commands on a command register used to save and restore +configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by +this driver interpret any access to those command registers (including read +commands) as request to execute the command in question. Unless write accesses +to those registers are protected, this may result in power loss, board resets, +and/or Flash corruption. Worst case, your board may turn into a brick. + + +Platform data support +--------------------- + +The driver supports standard PMBus driver platform data. + + +Module parameters +----------------- + +delay +----- + +Intersil/Zilker Labs DC-DC controllers require a minimum interval between I2C +bus accesses. According to Intersil, the minimum interval is 2 ms, though 1 ms +appears to be sufficient and has not caused any problems in testing. The problem +is known to affect all currently supported chips. For manual override, the +driver provides a writeable module parameter, 'delay', which can be used to set +the interval to a value between 0 and 65,535 microseconds. + + +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_min Minimum input voltage. +in1_max Maximum input voltage. +in1_lcrit Critical minumum input voltage. +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_crit_alarm Input voltage critical high alarm. + +in2_label "vout1" +in2_input Measured output voltage. +in2_lcrit Critical minumum output Voltage. +in2_crit Critical maximum output voltage. +in2_lcrit_alarm Critical output voltage critical low alarm. +in2_crit_alarm Critical output voltage critical high alarm. + +curr1_label "iout1" +curr1_input Measured output current. +curr1_lcrit Critical minimum output current. +curr1_crit Critical maximum output current. +curr1_lcrit_alarm Output current critical low alarm. +curr1_crit_alarm Output current critical high alarm. + +temp[12]_input Measured temperature. +temp[12]_min Minimum temperature. +temp[12]_max Maximum temperature. +temp[12]_lcrit Critical low temperature. +temp[12]_crit Critical high temperature. +temp[12]_min_alarm Chip temperature low alarm. +temp[12]_max_alarm Chip temperature high alarm. +temp[12]_lcrit_alarm Chip temperature critical low alarm. +temp[12]_crit_alarm Chip temperature critical high alarm. |