Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 (bbc7610c) · Commits · e / devices / android_kernel_oneplus_sm8150

Documentation/feature-removal-schedule.txt

+0 −9

Original line number	Diff line number	Diff line
		@@ -151,15 +151,6 @@ Who: Thomas Gleixner <tglx@linutronix.de>

		---------------------------

		What: I2C interface of the it87 driver
		When: January 2007
		Why: The ISA interface is faster and should be always available. The I2C
		probing is also known to cause trouble in at least one case (see
		bug #5889.)
		Who: Jean Delvare <khali@linux-fr.org>

		---------------------------

		What: Unused EXPORT_SYMBOL/EXPORT_SYMBOL_GPL exports
		(temporary transition config option provided until then)
		The transition config option will also be removed at the same time.

Documentation/hwmon/f71805f

+51 −5

Original line number	Diff line number	Diff line
		@@ -6,6 +6,10 @@ Supported chips:
		Prefix: 'f71805f'
		Addresses scanned: none, address read from Super I/O config space
		Datasheet: Provided by Fintek on request
		* Fintek F71872F/FG
		Prefix: 'f71872f'
		Addresses scanned: none, address read from Super I/O config space
		Datasheet: Provided by Fintek on request

		Author: Jean Delvare <khali@linux-fr.org>

		@@ -13,8 +17,8 @@ Thanks to Denis Kieft from Barracuda Networks for the donation of a
		test system (custom Jetway K8M8MS motherboard, with CPU and RAM) and
		for providing initial documentation.

		Thanks to Kris Chen from Fintek for answering technical questions and
		providing additional documentation.
		Thanks to Kris Chen and Aaron Huang from Fintek for answering technical
		questions and providing additional documentation.

		Thanks to Chris Lin from Jetway for providing wiring schematics and
		answering technical questions.
		@@ -28,8 +32,11 @@ capabilities. It can monitor up to 9 voltages (counting its own power
		source), 3 fans and 3 temperature sensors.

		This chip also has fan controlling features, using either DC or PWM, in
		three different modes (one manual, two automatic). The driver doesn't
		support these features yet.
		three different modes (one manual, two automatic).

		The Fintek F71872F/FG Super I/O chip is almost the same, with two
		additional internal voltages monitored (VSB and battery). It also features
		6 VID inputs. The VID inputs are not yet supported by this driver.

		The driver assumes that no more than one chip is present, which seems
		reasonable.
		@@ -42,7 +49,8 @@ Voltages are sampled by an 8-bit ADC with a LSB of 8 mV. The supported
		range is thus from 0 to 2.040 V. Voltage values outside of this range
		need external resistors. An exception is in0, which is used to monitor
		the chip's own power source (+3.3V), and is divided internally by a
		factor 2.
		factor 2. For the F71872F/FG, in9 (VSB) and in10 (battery) are also
		divided internally by a factor 2.

		The two LSB of the voltage limit registers are not used (always 0), so
		you can only set the limits in steps of 32 mV (before scaling).
		@@ -61,9 +69,12 @@ in5 VIN5 +12V 200K 20K 11.00 1.05 V
		in6 VIN6 VCC1.5V 10K - 1.00 1.50 V
		in7 VIN7 VCORE 10K - 1.00 ~1.40 V (1)
		in8 VIN8 VSB5V 200K 47K 1.00 0.95 V
		in10 VSB VSB3.3V int. int. 2.00 1.65 V (3)
		in9 VBAT VBATTERY int. int. 2.00 1.50 V (3)

		(1) Depends on your hardware setup.
		(2) Obviously not correct, swapping R1 and R2 would make more sense.
		(3) F71872F/FG only.

		These values can be used as hints at best, as motherboard manufacturers
		are free to use a completely different setup. As a matter of fact, the
		@@ -103,3 +114,38 @@ sensor. Each channel can be used for connecting either a thermal diode
		or a thermistor. The driver reports the currently selected mode, but
		doesn't allow changing it. In theory, the BIOS should have configured
		everything properly.


		Fan Control
		-----------

		Both PWM (pulse-width modulation) and DC fan speed control methods are
		supported. The right one to use depends on external circuitry on the
		motherboard, so the driver assumes that the BIOS set the method
		properly. The driver will report the method, but won't let you change
		it.

		When the PWM method is used, you can select the operating frequency,
		from 187.5 kHz (default) to 31 Hz. The best frequency depends on the
		fan model. As a rule of thumb, lower frequencies seem to give better
		control, but may generate annoying high-pitch noise. Fintek recommends
		not going below 1 kHz, as the fan tachometers get confused by lower
		frequencies as well.

		When the DC method is used, Fintek recommends not going below 5 V, which
		corresponds to a pwm value of 106 for the driver. The driver doesn't
		enforce this limit though.

		Three different fan control modes are supported:

		* Manual mode
		You ask for a specific PWM duty cycle or DC voltage.

		* Fan speed mode
		You ask for a specific fan speed. This mode assumes that pwm1
		corresponds to fan1, pwm2 to fan2 and pwm3 to fan3.

		* Temperature mode
		You define 3 temperature/fan speed trip points, and the fan speed is
		adjusted depending on the measured temperature, using interpolation.
		This mode is not yet supported by the driver.

Documentation/hwmon/it87

+13 −2

Original line number	Diff line number	Diff line
		@@ -9,8 +9,7 @@ Supported chips:
		http://www.ite.com.tw/
		* IT8712F
		Prefix: 'it8712'
		Addresses scanned: I2C 0x2d
		from Super I/O config space (8 I/O ports)
		Addresses scanned: from Super I/O config space (8 I/O ports)
		Datasheet: Publicly available at the ITE website
		http://www.ite.com.tw/
		* IT8716F
		@@ -53,6 +52,18 @@ Module Parameters
		misconfigured by BIOS - PWM values would be inverted. This option tries
		to fix this. Please contact your BIOS manufacturer and ask him for fix.


		Hardware Interfaces
		-------------------

		All the chips suported by this driver are LPC Super-I/O chips, accessed
		through the LPC bus (ISA-like I/O ports). The IT8712F additionally has an
		SMBus interface to the hardware monitoring functions. This driver no
		longer supports this interface though, as it is slower and less reliable
		than the ISA access, and was only available on a small number of
		motherboard models.


		Description
		-----------

Documentation/hwmon/k8temp

+1 −1

Original line number	Diff line number	Diff line
		@@ -8,7 +8,7 @@ Supported chips:
		Datasheet: http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/32559.pdf

		Author: Rudolf Marek
		Contact: Rudolf Marek <r.marek@sh.cvut.cz>
		Contact: Rudolf Marek <r.marek@assembler.cz>

		Description
		-----------

Documentation/hwmon/pc87427

0 → 100644

+38 −0

Original line number	Diff line number	Diff line
		Kernel driver pc87427
		=====================

		Supported chips:
		* National Semiconductor PC87427
		Prefix: 'pc87427'
		Addresses scanned: none, address read from Super I/O config space
		Datasheet: http://www.winbond.com.tw/E-WINBONDHTM/partner/apc_007.html

		Author: Jean Delvare <khali@linux-fr.org>

		Thanks to Amir Habibi at Candelis for setting up a test system, and to
		Michael Kress for testing several iterations of this driver.


		Description
		-----------

		The National Semiconductor Super I/O chip includes complete hardware
		monitoring capabilities. It can monitor up to 18 voltages, 8 fans and
		6 temperature sensors. Only the fans are supported at the moment.

		This chip also has fan controlling features, which are not yet supported
		by this driver either.

		The driver assumes that no more than one chip is present, which seems
		reasonable.


		Fan Monitoring
		--------------

		Fan rotation speeds are reported as 14-bit values from a gated clock
		signal. Speeds down to 83 RPM can be measured.

		An alarm is triggered if the rotation speed drops below a programmable
		limit. Another alarm is triggered if the speed is too low to to be measured
		(including stalled or missing fan).