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authorGuenter Roeck <linux@roeck-us.net>2012-03-02 14:46:44 -0500
committerGuenter Roeck <guenter.roeck@ericsson.com>2012-05-20 22:41:48 -0400
commit0531d98b1f2ec6f92074e5b2a74927b865bc605c (patch)
tree2546a596b517da316c3cd07c0e99aafec27322ce /Documentation/hwmon
parent76e10d158efb6d4516018846f60c2ab5501900bc (diff)
hwmon: (it87) Add support for IT8782F and IT8783E/F
Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/it8728
1 files changed, 19 insertions, 9 deletions
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87
index 23b7def21ba8..899128dfb130 100644
--- a/Documentation/hwmon/it87
+++ b/Documentation/hwmon/it87
@@ -30,6 +30,14 @@ Supported chips:
30 Prefix: 'it8728' 30 Prefix: 'it8728'
31 Addresses scanned: from Super I/O config space (8 I/O ports) 31 Addresses scanned: from Super I/O config space (8 I/O ports)
32 Datasheet: Not publicly available 32 Datasheet: Not publicly available
33 * IT8782F
34 Prefix: 'it8782'
35 Addresses scanned: from Super I/O config space (8 I/O ports)
36 Datasheet: Not publicly available
37 * IT8783E/F
38 Prefix: 'it8783'
39 Addresses scanned: from Super I/O config space (8 I/O ports)
40 Datasheet: Not publicly available
33 * SiS950 [clone of IT8705F] 41 * SiS950 [clone of IT8705F]
34 Prefix: 'it87' 42 Prefix: 'it87'
35 Addresses scanned: from Super I/O config space (8 I/O ports) 43 Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -75,7 +83,8 @@ Description
75----------- 83-----------
76 84
77This driver implements support for the IT8705F, IT8712F, IT8716F, 85This driver implements support for the IT8705F, IT8712F, IT8716F,
78IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E and SiS950 chips. 86IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8781F, IT8782F,
87IT8783E/F, and SiS950 chips.
79 88
80These chips are 'Super I/O chips', supporting floppy disks, infrared ports, 89These chips are 'Super I/O chips', supporting floppy disks, infrared ports,
81joysticks and other miscellaneous stuff. For hardware monitoring, they 90joysticks and other miscellaneous stuff. For hardware monitoring, they
@@ -99,11 +108,11 @@ The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E and later IT8712F revisions
99have support for 2 additional fans. The additional fans are supported by the 108have support for 2 additional fans. The additional fans are supported by the
100driver. 109driver.
101 110
102The IT8716F, IT8718F, IT8720F and IT8721F/IT8758E, and late IT8712F and 111The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E, IT8782F, IT8783E/F, and late
103IT8705F also have optional 16-bit tachometer counters for fans 1 to 3. This 112IT8712F and IT8705F also have optional 16-bit tachometer counters for fans 1 to
104is better (no more fan clock divider mess) but not compatible with the older 1133. This is better (no more fan clock divider mess) but not compatible with the
105chips and revisions. The 16-bit tachometer mode is enabled by the driver when 114older chips and revisions. The 16-bit tachometer mode is enabled by the driver
106one of the above chips is detected. 115when one of the above chips is detected.
107 116
108The IT8726F is just bit enhanced IT8716F with additional hardware 117The IT8726F is just bit enhanced IT8716F with additional hardware
109for AMD power sequencing. Therefore the chip will appear as IT8716F 118for AMD power sequencing. Therefore the chip will appear as IT8716F
@@ -131,9 +140,10 @@ inputs can measure voltages between 0 and 4.08 volts, with a resolution of
1310.016 volt (except IT8721F/IT8758E and IT8728F: 0.012 volt.) The battery 1400.016 volt (except IT8721F/IT8758E and IT8728F: 0.012 volt.) The battery
132voltage in8 does not have limit registers. 141voltage in8 does not have limit registers.
133 142
134On the IT8721F/IT8758E, some voltage inputs are internal and scaled inside 143On the IT8721F/IT8758E, IT8782F, and IT8783E/F, some voltage inputs are
135the chip (in7, in8 and optionally in3). The driver handles this transparently 144internal and scaled inside the chip (in7 (optional for IT8782F and IT8783E/F),
136so user-space doesn't have to care. 145in8 and optionally in3). The driver handles this transparently so user-space
146doesn't have to care.
137 147
138The VID lines (IT8712F/IT8716F/IT8718F/IT8720F) encode the core voltage value: 148The VID lines (IT8712F/IT8716F/IT8718F/IT8720F) encode the core voltage value:
139the voltage level your processor should work with. This is hardcoded by 149the voltage level your processor should work with. This is hardcoded by