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authorGuenter Roeck <linux@roeck-us.net>2015-03-25 23:26:28 -0700
committerGuenter Roeck <linux@roeck-us.net>2015-04-05 06:00:59 -0700
commit4ee07157d690b1b824328a473816a371130de6f2 (patch)
tree7b8e1ca9bc4a357dfa5f783b48cbd453eb316e1e /Documentation/hwmon
parent7f5726c39ad469447545233f41a13d202a233d6b (diff)
downloadkernel-4ee07157d690b1b824328a473816a371130de6f2.tar.gz
hwmon: (it87) Add support for IT8790E
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 <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/it8713
1 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index 19fbe775ae10..91e8f011dacf 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -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.