Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/Documentation/hwmon/w83627hf.rst b/Documentation/hwmon/w83627hf.rst
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+Kernel driver w83627hf
+======================
+
+Supported chips:
+  * Winbond W83627HF (ISA accesses ONLY)
+    Prefix: 'w83627hf'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+  * Winbond W83627THF
+    Prefix: 'w83627thf'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+  * Winbond W83697HF
+    Prefix: 'w83697hf'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+  * Winbond W83637HF
+    Prefix: 'w83637hf'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+  * Winbond W83687THF
+    Prefix: 'w83687thf'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+    Datasheet: Provided by Winbond on request(http://www.winbond.com/hq/enu)
+
+Authors:
+	Frodo Looijaard <frodol@dds.nl>,
+	Philip Edelbrock <phil@netroedge.com>,
+	Mark Studebaker <mdsxyz123@yahoo.com>,
+	Bernhard C. Schrenk <clemy@clemy.org>
+
+Module Parameters
+-----------------
+
+* force_i2c: int
+  Initialize the I2C address of the sensors
+* init: int
+  (default is 1)
+  Use 'init=0' to bypass initializing the chip.
+  Try this if your computer crashes when you load the module.
+
+Description
+-----------
+
+This driver implements support for ISA accesses *only* for
+the Winbond W83627HF, W83627THF, W83697HF and W83637HF Super I/O chips.
+We will refer to them collectively as Winbond chips.
+
+This driver supports ISA accesses, which should be more reliable
+than i2c accesses. Also, for Tyan boards which contain both a
+Super I/O chip and a second i2c-only Winbond chip (often a W83782D),
+using this driver will avoid i2c address conflicts and complex
+initialization that were required in the w83781d driver.
+
+If you really want i2c accesses for these Super I/O chips,
+use the w83781d driver. However this is not the preferred method
+now that this ISA driver has been developed.
+
+The `w83627_HF_` uses pins 110-106 as VID0-VID4. The `w83627_THF_` uses the
+same pins as GPIO[0:4]. Technically, the `w83627_THF_` does not support a
+VID reading. However the two chips have the identical 128 pin package. So,
+it is possible or even likely for a w83627thf to have the VID signals routed
+to these pins despite their not being labeled for that purpose. Therefore,
+the w83627thf driver interprets these as VID. If the VID on your board
+doesn't work, first see doc/vid in the lm_sensors package[1]. If that still
+doesn't help, you may just ignore the bogus VID reading with no harm done.
+
+For further information on this driver see the w83781d driver documentation.
+
+[1] http://www.lm-sensors.org/browser/lm-sensors/trunk/doc/vid
+
+Forcing the address
+-------------------
+
+The driver used to have a module parameter named force_addr, which could
+be used to force the base I/O address of the hardware monitoring block.
+This was meant as a workaround for mainboards with a broken BIOS. This
+module parameter is gone for technical reasons. If you need this feature,
+you can obtain the same result by using the isaset tool (part of
+lm-sensors) before loading the driver:
+
+# Enter the Super I/O config space::
+
+	isaset -y -f 0x2e 0x87
+	isaset -y -f 0x2e 0x87
+
+# Select the hwmon logical device::
+
+	isaset -y 0x2e 0x2f 0x07 0x0b
+
+# Set the base I/O address (to 0x290 in this example)::
+
+	isaset -y 0x2e 0x2f 0x60 0x02
+	isaset -y 0x2e 0x2f 0x61 0x90
+
+# Exit the Super-I/O config space::
+
+	isaset -y -f 0x2e 0xaa
+
+The above sequence assumes a Super-I/O config space at 0x2e/0x2f, but
+0x4e/0x4f is also possible.
+
+Voltage pin mapping
+-------------------
+
+Here is a summary of the voltage pin mapping for the W83627THF. This
+can be useful to convert data provided by board manufacturers into
+working libsensors configuration statements:
+
+
+- W83627THF
+
+
+  ======== =============== =============== ===============
+  Pin	   Name		   Register	   Sysfs attribute
+  ======== =============== =============== ===============
+    100	   CPUVCORE	   20h		   in0
+     99	   VIN0		   21h		   in1
+     98	   VIN1		   22h		   in2
+     97	   VIN2		   24h		   in4
+    114	   AVCC		   23h		   in3
+     61	   5VSB		   50h (bank 5)	   in7
+     74	   VBAT		   51h (bank 5)	   in8
+  ======== =============== =============== ===============
+
+For other supported devices, you'll have to take the hard path and
+look up the information in the datasheet yourself (and then add it
+to this document please.)