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hwmon: (it87) Add support for IT8790E

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IT8790E is a super-IO chip with three fan tachometers. It is mostly
compatible to IT8728F, but only supports three fan tachometers
instead of five.

Reviewed-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
This commit is contained in:
Guenter Roeck 2015-03-25 23:26:28 -07:00
commit 4ee07157d6
3 changed files with 25 additions and 6 deletions
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13
Documentation/hwmon/it87
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@ -58,6 +58,10 @@ Supported chips:
Prefix: 'it8786'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* IT8790E
Prefix: 'it8790'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* SiS950 [clone of IT8705F]
Prefix: 'it87'
Addresses scanned: from Super I/O config space (8 I/O ports)
@ -102,9 +106,10 @@ motherboard models.
Description
-----------
This driver implements support for the IT8603E, IT8623E, IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E,
IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, and SiS950 chips.
This driver implements support for the IT8603E, IT8623E, IT8705F,
IT8712F, IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E,
IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E, and SiS950
chips.
These chips are 'Super I/O chips', supporting floppy disks, infrared ports,
joysticks and other miscellaneous stuff. For hardware monitoring, they
@ -145,6 +150,8 @@ The IT8603E/IT8623E is a custom design, hardware monitoring part is similar to
IT8728F. It only supports 16-bit fan mode, the full speed mode of the
fan is not supported (value 0 of pwmX_enable).
The IT8790E supports up to 3 fans. 16-bit fan mode is always enabled.
Temperatures are measured in degrees Celsius. An alarm is triggered once
when the Overtemperature Shutdown limit is crossed.