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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 18:09:43 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-03 18:09:43 (GMT)
commitf456205265a61f1d649f8378eceaa163850cba4e (patch)
treec974aafac8fad9bf1322f2ec66aaf01d01adfaf8 /Documentation/hwmon/nct6683
parent8f5759aeb88a47448cd92ab55a016d013b154a98 (diff)
parent9d311eddf3565ed0e05b3cb5a22db41fa74d9d86 (diff)
downloadlinux-f456205265a61f1d649f8378eceaa163850cba4e.tar.xz
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging into next
Pull hwmon updates from Guenter Roeck: "New driver for NCT6683D New chip support to existing drivers: - add support for STTS2004 and AT30TSE004 to jc42 driver - add support for EMC1402/EMC1412/EMC1422 to emc1403 driver Other notable changes: - document hwmon kernel API - convert jc42, lm70, lm75, lm77, lm83, lm92, max1619, tmp421, and tmp102 drivers to use new hwmon API functions - replace function macros in lm80, lm92, and jc42 drivers with real code - convert emc1403 driver to use regmap, add support for additional attributes, and add device IDs for EMC1412, EMC1413, and EMC1414 - various additional cleanup and minor bug fixes in several drivers" * tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (60 commits) hwmon: (nct6775) Fix probe unwind paths to properly unregister platform devices hwmon: (nct6683) Fix probe unwind paths to properly unregister platform devices hwmon: (ultra45_env) Introduce managed version of kzalloc hwmon: Driver for NCT6683D hwmon: (lm80) Rearrange code to avoid forward declarations hwmon: (lm80) Convert fan display function macros into functions hwmon: (lm80) Convert voltage display function macros into functions hwmon: (lm80) Convert temperature display function macros into functions hwmon: (lm80) Normalize all temperature values to 16 bit hwmon: (lm80) Simplify TEMP_FROM_REG hwmon: (lm83) Convert to use devm_hwmon_device_register_with_groups hwmon: (lm83) Rearange code to avoid forward declarations hwmon: (lm83) Drop FSF address hwmon: (max1619) Convert to use devm_hwmon_device_register_with_groups hwmon: (max1619) Drop function macros hwmon: (max1619) Rearrange code to avoid forward declarations hwmon: (max1619) Drop FSF address hwmon: (max1619) Fix critical alarm display hwmon: (jc42) Add support for STTS2004 and AT30TSE004 hwmon: (jc42) Convert function macros into functions ...
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+Kernel driver nct6683
+=====================
+
+Supported chips:
+ * Nuvoton NCT6683D
+ Prefix: 'nct6683'
+ 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 NCT6683D eSIO chip.
+
+The chips implement up to shared 32 temperature and voltage sensors.
+It supports up to 16 fan rotation sensors and up to 8 fan control engines.
+
+Temperatures are measured in degrees Celsius. Measurement resolution is
+0.5 degrees C.
+
+Voltage sensors (also known as IN sensors) report their values in millivolts.
+
+Fan rotation speeds are reported in RPM (rotations per minute).
+
+Usage Note
+----------
+
+Limit register locations on Intel boards with EC firmware version 1.0
+build date 04/03/13 do not match the register locations in the Nuvoton
+datasheet. Nuvoton confirms that Intel uses a special firmware version
+with different register addresses. The specification describing the Intel
+firmware is held under NDA by Nuvoton and Intel and not available
+to the public.
+
+Some of the register locations can be reverse engineered; others are too
+well hidden. Given this, writing any values from the operating system is
+considered too risky with this firmware and has been disabled. All limits
+must all be written from the BIOS.
+
+The driver has only been tested with the Intel firmware, and by default
+only instantiates on Intel boards. To enable it on non-Intel boards,
+set the 'force' module parameter to 1.
+
+Tested Boards and Firmware Versions
+-----------------------------------
+
+The driver has been reported to work with the following boards and
+firmware versions.
+
+Board Firmware version
+---------------------------------------------------------------
+Intel DH87RL NCT6683D EC firmware version 1.0 build 04/03/13
+Intel DH87MC NCT6683D EC firmware version 1.0 build 04/03/13
+Intel DB85FL NCT6683D EC firmware version 1.0 build 04/03/13