[lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE 8728

[lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE 8728

[Frank T. Lofaro Jr.]

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This patch allows the ITE 8728 chip to be detected and used.
The chip appears to be compatible with the 8721.

Signed-off-by: Frank T. Lofaro Jr. <ftlofaro@yahoo.com>
---
 drivers/hwmon/it87.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index d912649..0b21d18 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -17,6 +17,7 @@
  *            IT8720F  Super I/O chip w/LPC interface
  *            IT8721F  Super I/O chip w/LPC interface
  *            IT8726F  Super I/O chip w/LPC interface
+ *            IT8728F  Super I/O chip w/LPC interface
  *            IT8758E  Super I/O chip w/LPC interface
  *            Sis950   A clone of the IT8705F
  *
@@ -135,6 +136,7 @@ static inline void superio_exit(void)
 #define IT8720F_DEVID 0x8720
 #define IT8721F_DEVID 0x8721
 #define IT8726F_DEVID 0x8726
+#define IT8728F_DEVID 0x8728
 #define IT87_ACT_REG  0x30
 #define IT87_BASE_REG 0x60
 
@@ -1603,6 +1605,7 @@ static int __init it87_find(unsigned short *address,
                sio_data->type = it8720;
                break;
        case IT8721F_DEVID:
+       case IT8728F_DEVID:
                sio_data->type = it8721;
                break;
        case 0xffff:    /* No device at all */
-- 
1.7.7.2

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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Guenter Roeck]

On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> This patch allows the ITE 8728 chip to be detected and used.
> The chip appears to be compatible with the 8721.
> 

Can anyone confirm that those chips are actually compatible ?

Thanks,
Guenter

Signed-off-by: Frank T. Lofaro Jr. <ftlofaro@yahoo.com>
> ---
>  drivers/hwmon/it87.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
> index d912649..0b21d18 100644
> --- a/drivers/hwmon/it87.c
> +++ b/drivers/hwmon/it87.c
> @@ -17,6 +17,7 @@
>   *            IT8720F  Super I/O chip w/LPC interface
>   *            IT8721F  Super I/O chip w/LPC interface
>   *            IT8726F  Super I/O chip w/LPC interface
> + *            IT8728F  Super I/O chip w/LPC interface
>   *            IT8758E  Super I/O chip w/LPC interface
>   *            Sis950   A clone of the IT8705F
>   *
> @@ -135,6 +136,7 @@ static inline void superio_exit(void)
>  #define IT8720F_DEVID 0x8720
>  #define IT8721F_DEVID 0x8721
>  #define IT8726F_DEVID 0x8726
> +#define IT8728F_DEVID 0x8728
>  #define IT87_ACT_REG  0x30
>  #define IT87_BASE_REG 0x60
>  
> @@ -1603,6 +1605,7 @@ static int __init it87_find(unsigned short
> *address,
>                 sio_data->type = it8720;
>                 break;
>         case IT8721F_DEVID:
> +       case IT8728F_DEVID:
>                 sio_data->type = it8721;
>                 break;
>         case 0xffff:    /* No device at all */
> -- 
> 1.7.7.2
> 
> 



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Re: [PATCH] Drivers: hwmon: it87: Add support for ITE 8728

[Guenter Roeck]

On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> This patch allows the ITE 8728 chip to be detected and used.
> The chip appears to be compatible with the 8721.
> 

Can anyone confirm that those chips are actually compatible ?

Thanks,
Guenter

Signed-off-by: Frank T. Lofaro Jr. <ftlofaro@yahoo.com>
> ---
>  drivers/hwmon/it87.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
> index d912649..0b21d18 100644
> --- a/drivers/hwmon/it87.c
> +++ b/drivers/hwmon/it87.c
> @@ -17,6 +17,7 @@
>   *            IT8720F  Super I/O chip w/LPC interface
>   *            IT8721F  Super I/O chip w/LPC interface
>   *            IT8726F  Super I/O chip w/LPC interface
> + *            IT8728F  Super I/O chip w/LPC interface
>   *            IT8758E  Super I/O chip w/LPC interface
>   *            Sis950   A clone of the IT8705F
>   *
> @@ -135,6 +136,7 @@ static inline void superio_exit(void)
>  #define IT8720F_DEVID 0x8720
>  #define IT8721F_DEVID 0x8721
>  #define IT8726F_DEVID 0x8726
> +#define IT8728F_DEVID 0x8728
>  #define IT87_ACT_REG  0x30
>  #define IT87_BASE_REG 0x60
>  
> @@ -1603,6 +1605,7 @@ static int __init it87_find(unsigned short
> *address,
>                 sio_data->type = it8720;
>                 break;
>         case IT8721F_DEVID:
> +       case IT8728F_DEVID:
>                 sio_data->type = it8721;
>                 break;
>         case 0xffff:    /* No device at all */
> -- 
> 1.7.7.2
> 
> 

Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Gustavo De Nardin (spuk)]

> On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> > This patch allows the ITE 8728 chip to be detected and used.
> > The chip appears to be compatible with the 8721.
> > 
> 
> Can anyone confirm that those chips are actually compatible ?

Unlike forcing the other chips' ids, with force_id=0x8721 PWM control seems
to work reasonably, with pwm1_enable=1, pwm1=0 yields around 1132 RPM on the
CPU fan, and pwm1=255 yields around 3260 RPM.  Should pwm1=0 actually stop
the fan?  I get what (empirically) seem to be consistent logarithmic
increase in RPM when increasing pwm1 value, anyway.

But the sensors values read with 'it87 force_id=0x8721' don't seem ok, I get
this (first 'it87 force_id=0x8721', then 'asus_atk0110 new_if=1', which
seems to provide good readings):

it8721-isa-0290
Adapter: ISA adapter
in0:          +0.95 V  (min =  +2.78 V, max =  +1.14 V)  ALARM
in1:          +1.50 V  (min =  +0.00 V, max =  +3.01 V)
in2:          +1.88 V  (min =  +2.66 V, max =  +2.27 V)  ALARM
in3:          +2.05 V  (min =  +2.68 V, max =  +0.67 V)  ALARM
in4:          +2.03 V  (min =  +3.04 V, max =  +1.42 V)  ALARM
in5:          +3.05 V  (min =  +3.04 V, max =  +3.01 V)  ALARM
in6:          +2.05 V  (min =  +2.77 V, max =  +1.87 V)  ALARM
3VSB:         +6.07 V  (min =  +1.10 V, max =  +4.56 V)  ALARM
Vbat:         +3.34 V
fan1:        3292 RPM  (min =   10 RPM)
fan2:           0 RPM  (min =   10 RPM)  ALARM
fan3:           0 RPM  (min =   13 RPM)  ALARM
temp1:        +33.0°C  (low  = -65.0°C, high = -10.0°C)  sensor = thermistor
temp2:        +40.0°C  (low  = -19.0°C, high = +127.0°C)  sensor =
thermistor
temp3:       -128.0°C  (low  = +119.0°C, high =  -2.0°C)  sensor = disabled
intrusion0:  OK

atk0110-acpi-0
Adapter: ACPI interface
Vcore Voltage:      +0.95 V  (min =  +0.80 V, max =  +1.60 V)
+3.3V Voltage:      +3.34 V  (min =  +2.97 V, max =  +3.63 V)
+5V Voltage:        +5.13 V  (min =  +4.50 V, max =  +5.50 V)
+12V Voltage:      +12.11 V  (min = +10.20 V, max = +13.80 V)
CPU Fan Speed:     3276 RPM  (min =  600 RPM)
Chassis Fan Speed:    0 RPM  (min =  600 RPM)
CPU Temperature:    +33.0°C  (high = +60.0°C, crit = +95.0°C)
MB Temperature:     +40.0°C  (high = +45.0°C, crit = +75.0°C)


This is on an Asus M5A78L-M/USB3 mainboard.

t'


> 
> Thanks,
> Guenter
> 
> Signed-off-by: Frank T. Lofaro Jr. <ftlofaro at yahoo.com>
> > ---
> >  drivers/hwmon/it87.c |    3 +++
> >  1 files changed, 3 insertions(+), 0 deletions(-)
> > 
> > diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
> > index d912649..0b21d18 100644
> > --- a/drivers/hwmon/it87.c
> > +++ b/drivers/hwmon/it87.c
> > @@ -17,6 +17,7 @@
> >   *            IT8720F  Super I/O chip w/LPC interface
> >   *            IT8721F  Super I/O chip w/LPC interface
> >   *            IT8726F  Super I/O chip w/LPC interface
> > + *            IT8728F  Super I/O chip w/LPC interface
> >   *            IT8758E  Super I/O chip w/LPC interface
> >   *            Sis950   A clone of the IT8705F
> >   *
> > @@ -135,6 +136,7 @@ static inline void superio_exit(void)
> >  #define IT8720F_DEVID 0x8720
> >  #define IT8721F_DEVID 0x8721
> >  #define IT8726F_DEVID 0x8726
> > +#define IT8728F_DEVID 0x8728
> >  #define IT87_ACT_REG  0x30
> >  #define IT87_BASE_REG 0x60
> >  
> > @@ -1603,6 +1605,7 @@ static int __init it87_find(unsigned short
> > *address,
> >                 sio_data->type = it8720;
> >                 break;
> >         case IT8721F_DEVID:
> > +       case IT8728F_DEVID:
> >                 sio_data->type = it8721;
> >                 break;
> >         case 0xffff:    /* No device at all */
> > -- 
> > 1.7.7.2

-- 
::question = (bool) _2b||!_2b;

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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Gustavo De Nardin]

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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Jean Delvare]

On Mon, 14 Nov 2011 19:14:16 -0200, Gustavo De Nardin (spuk) wrote:
> > On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> > > This patch allows the ITE 8728 chip to be detected and used.
> > > The chip appears to be compatible with the 8721.
> > > 
> > 
> > Can anyone confirm that those chips are actually compatible ?
> 
> Unlike forcing the other chips' ids, with force_id=0x8721 PWM control seems
> to work reasonably, with pwm1_enable=1, pwm1=0 yields around 1132 RPM on the
> CPU fan, and pwm1=255 yields around 3260 RPM.  Should pwm1=0 actually stop
> the fan?  I get what (empirically) seem to be consistent logarithmic
> increase in RPM when increasing pwm1 value, anyway.

If this is a 4-wire fan then your results are expected. pwm=0 always
stops 3-wire fans (no power -> stopped) but typically 4-wire fans have
a minimum speed (speed control is separate from power.)

> But the sensors values read with 'it87 force_id=0x8721' don't seem ok, I get
> this (first 'it87 force_id=0x8721', then 'asus_atk0110 new_if=1', which
> seems to provide good readings):
> 
> it8721-isa-0290
> Adapter: ISA adapter
> in0:          +0.95 V  (min =  +2.78 V, max =  +1.14 V)  ALARM
> in1:          +1.50 V  (min =  +0.00 V, max =  +3.01 V)
> in2:          +1.88 V  (min =  +2.66 V, max =  +2.27 V)  ALARM
> in3:          +2.05 V  (min =  +2.68 V, max =  +0.67 V)  ALARM
> in4:          +2.03 V  (min =  +3.04 V, max =  +1.42 V)  ALARM
> in5:          +3.05 V  (min =  +3.04 V, max =  +3.01 V)  ALARM
> in6:          +2.05 V  (min =  +2.77 V, max =  +1.87 V)  ALARM
> 3VSB:         +6.07 V  (min =  +1.10 V, max =  +4.56 V)  ALARM
> Vbat:         +3.34 V
> fan1:        3292 RPM  (min =   10 RPM)
> fan2:           0 RPM  (min =   10 RPM)  ALARM
> fan3:           0 RPM  (min =   13 RPM)  ALARM
> temp1:        +33.0°C  (low  = -65.0°C, high = -10.0°C)  sensor = thermistor
> temp2:        +40.0°C  (low  = -19.0°C, high = +127.0°C)  sensor =
> thermistor
> temp3:       -128.0°C  (low  = +119.0°C, high =  -2.0°C)  sensor = disabled
> intrusion0:  OK
> 
> atk0110-acpi-0
> Adapter: ACPI interface
> Vcore Voltage:      +0.95 V  (min =  +0.80 V, max =  +1.60 V)
> +3.3V Voltage:      +3.34 V  (min =  +2.97 V, max =  +3.63 V)
> +5V Voltage:        +5.13 V  (min =  +4.50 V, max =  +5.50 V)
> +12V Voltage:      +12.11 V  (min = +10.20 V, max = +13.80 V)
> CPU Fan Speed:     3276 RPM  (min =  600 RPM)
> Chassis Fan Speed:    0 RPM  (min =  600 RPM)
> CPU Temperature:    +33.0°C  (high = +60.0°C, crit = +95.0°C)
> MB Temperature:     +40.0°C  (high = +45.0°C, crit = +75.0°C)

This isn't necessarily bad. It is expected that you need voltage
scaling for the it87 which you don't need for the atk0110 interface.
AFAIK it is also expected that the limits aren't set as the atk0110
interface uses its own software limits (Luca can you please confirm?)

So it's really a matter of finding the right scaling factors. Easiest
way in your case if probably to extract them from the DSDT table. See
http://www.lm-sensors.org/wiki/AsusFormulaHacking for some information
on this. If you provide the DSDT to myself and Luca we should be able
to figure it out.

-- 
Jean Delvare

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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Luca Tettamanti]

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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Gustavo De Nardin (spuk)]

* Luca Tettamanti <kronos.it@gmail.com> [2011-11-15 10:52 +0100]:
> On Mon, Nov 14, 2011 at 10:45 PM, Jean Delvare <khali@linux-fr.org> wrote:
> > On Mon, 14 Nov 2011 19:14:16 -0200, Gustavo De Nardin (spuk) wrote:
> >
> >> But the sensors values read with 'it87 force_id=0x8721' don't seem ok, I get
> >> this (first 'it87 force_id=0x8721', then 'asus_atk0110 new_if=1', which
> >> seems to provide good readings):
> 
> Please send me the output of "dmidecode -t 2" so I can override the
> default detection logic... this will allow the driver (atk0110) to
> work out of the box on your board.

Here it is:
-------8<----------8<----------
# dmidecode 2.11
SMBIOS 2.5 present.

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
        Manufacturer: ASUSTeK Computer INC.
        Product Name: M5A78L-M/USB3
        Version: Rev X.0x
        Serial Number: 110203870000896
        Asset Tag: To Be Filled By O.E.M.
        Features:
                Board is a hosting board
                Board is replaceable
        Location In Chassis: To Be Filled By O.E.M.
        Chassis Handle: 0x0003
        Type: Motherboard
        Contained Object Handles: 0
-------8<----------8<----------

Thanks.

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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Gustavo De Nardin (spuk)]

* Jean Delvare <khali@linux-fr.org> [2011-11-14 22:45 +0100]:
> On Mon, 14 Nov 2011 19:14:16 -0200, Gustavo De Nardin (spuk) wrote:
> > > On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> > > > This patch allows the ITE 8728 chip to be detected and used.
> > > > The chip appears to be compatible with the 8721.
> > > > 
> > > 
> > > Can anyone confirm that those chips are actually compatible ?
> > 
> > Unlike forcing the other chips' ids, with force_id=0x8721 PWM control seems
> > to work reasonably, with pwm1_enable=1, pwm1=0 yields around 1132 RPM on the
> > CPU fan, and pwm1%5 yields around 3260 RPM.  Should pwm1=0 actually stop
> > the fan?  I get what (empirically) seem to be consistent logarithmic
> > increase in RPM when increasing pwm1 value, anyway.
> 
> If this is a 4-wire fan then your results are expected. pwm=0 always
> stops 3-wire fans (no power -> stopped) but typically 4-wire fans have
> a minimum speed (speed control is separate from power.)

Yes, this is a 4-wire fan. The chassis fan connector is 3-wire though, and I
can't seem to control the speed of a 3-wired fan by writing to pwm2.


> So it's really a matter of finding the right scaling factors. Easiest
> way in your case if probably to extract them from the DSDT table. See
> http://www.lm-sensors.org/wiki/AsusFormulaHacking for some information
> on this. If you provide the DSDT to myself and Luca we should be able
> to figure it out.

Here: http://spuk.denardin.org/Asus_M5A78L-M-v0603_DSDT.bin

No hurry from me, I'm gonna use asus_atk0110 for reading, and it87 only for
PWM control or now.

I'm trying making sense of the formula in the RVLT method. How can I use
isadump to get the raw values for checking the formula?

Thanks.

t'

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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Jean Delvare]

On Tue, 15 Nov 2011 13:49:46 -0200, Gustavo De Nardin (spuk) wrote:
> * Jean Delvare <khali@linux-fr.org> [2011-11-14 22:45 +0100]:
> > On Mon, 14 Nov 2011 19:14:16 -0200, Gustavo De Nardin (spuk) wrote:
> > > Unlike forcing the other chips' ids, with force_id=0x8721 PWM control seems
> > > to work reasonably, with pwm1_enable=1, pwm1=0 yields around 1132 RPM on the
> > > CPU fan, and pwm1%5 yields around 3260 RPM.  Should pwm1=0 actually stop
> > > the fan?  I get what (empirically) seem to be consistent logarithmic
> > > increase in RPM when increasing pwm1 value, anyway.
> > 
> > If this is a 4-wire fan then your results are expected. pwm=0 always
> > stops 3-wire fans (no power -> stopped) but typically 4-wire fans have
> > a minimum speed (speed control is separate from power.)
> 
> Yes, this is a 4-wire fan. The chassis fan connector is 3-wire though, and I
> can't seem to control the speed of a 3-wired fan by writing to pwm2.

It's up to the board designer to route the PWM pins to one or more
fans. Sometimes they do, sometimes they don't. Unfortunately this is
often not documented

> > So it's really a matter of finding the right scaling factors. Easiest
> > way in your case if probably to extract them from the DSDT table. See
> > http://www.lm-sensors.org/wiki/AsusFormulaHacking for some information
> > on this. If you provide the DSDT to myself and Luca we should be able
> > to figure it out.
> 
> Here: http://spuk.denardin.org/Asus_M5A78L-M-v0603_DSDT.bin
> 
> No hurry from me, I'm gonna use asus_atk0110 for reading, and it87 only for
> PWM control or now.

Ick, no, don't do that. Actually normally you can't, the drivers won't
let you do that. it87 will refuse to load if
acpi_enforce_resources=strict and asus_atk0110 will refuse to load if
not. You did not manage to load both at the same time, did you?

> I'm trying making sense of the formula in the RVLT method. How can I use
> isadump to get the raw values for checking the formula?

First you have to find the base I/O address of the chip. sensors tells
you it's 0x290. So the dump can be obtained with:

# isadump 0x295 0x296

This is preferably done with neither it87 not asus_atk0110 module
loaded. See it87.c for voltage register definitions:

#define IT87_REG_VIN(nr)       (0x20 + (nr))

-- 
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Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Jean Delvare]

On Mon, 7 Nov 2011 10:00:45 -0800, Guenter Roeck wrote:
> On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> > This patch allows the ITE 8728 chip to be detected and used.
> > The chip appears to be compatible with the 8721.

Frank, can we see the output of "sensors" on your system with your
patch applied?

> Can anyone confirm that those chips are actually compatible ?

The datasheet is not publicly available, unfortunately. The info I have
is that temperature and fan parts are likely to be compatible. Not so
sure about the voltages, although the ADC resolution is the same (12
mV.)

> > @@ -1603,6 +1605,7 @@ static int __init it87_find(unsigned short
> > *address,
> >                 sio_data->type = it8720;
> >                 break;
> >         case IT8721F_DEVID:
> > +       case IT8728F_DEVID:
> >                 sio_data->type = it8721;
> >                 break;
> >         case 0xffff:    /* No device at all */

One thing for sure: I want to play it safe and introduce a separate
chip type for the IT8728F. Two advantages: we can tell who has an
IT8728F from user reports easily, and we can add chip tweaks later
easily without breaking user configurations.

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Re: [PATCH] Drivers: hwmon: it87: Add support for ITE 8728

[Jean Delvare]

On Mon, 7 Nov 2011 10:00:45 -0800, Guenter Roeck wrote:
> On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> > This patch allows the ITE 8728 chip to be detected and used.
> > The chip appears to be compatible with the 8721.

Frank, can we see the output of "sensors" on your system with your
patch applied?

> Can anyone confirm that those chips are actually compatible ?

The datasheet is not publicly available, unfortunately. The info I have
is that temperature and fan parts are likely to be compatible. Not so
sure about the voltages, although the ADC resolution is the same (12
mV.)

> > @@ -1603,6 +1605,7 @@ static int __init it87_find(unsigned short
> > *address,
> >                 sio_data->type = it8720;
> >                 break;
> >         case IT8721F_DEVID:
> > +       case IT8728F_DEVID:
> >                 sio_data->type = it8721;
> >                 break;
> >         case 0xffff:    /* No device at all */

One thing for sure: I want to play it safe and introduce a separate
chip type for the IT8728F. Two advantages: we can tell who has an
IT8728F from user reports easily, and we can add chip tweaks later
easily without breaking user configurations.

-- 
Jean Delvare

Re: [lm-sensors] [PATCH] Drivers: hwmon: it87: Add support for ITE

[Jean Delvare]

Hi Gustavo,

On Mon, 14 Nov 2011 19:14:16 -0200, Gustavo De Nardin (spuk) wrote:
> > On Fri, 2011-11-04 at 00:44 -0400, Frank T. Lofaro Jr. wrote:
> > > This patch allows the ITE 8728 chip to be detected and used.
> > > The chip appears to be compatible with the 8721.
> > 
> > Can anyone confirm that those chips are actually compatible ?
> 
> Unlike forcing the other chips' ids, with force_id=0x8721 PWM control seems
> to work reasonably, with pwm1_enable=1, pwm1=0 yields around 1132 RPM on the
> CPU fan, and pwm1=255 yields around 3260 RPM.  Should pwm1=0 actually stop
> the fan?  I get what (empirically) seem to be consistent logarithmic
> increase in RPM when increasing pwm1 value, anyway.
> 
> But the sensors values read with 'it87 force_id=0x8721' don't seem ok, I get
> this (first 'it87 force_id=0x8721', then 'asus_atk0110 new_if=1', which
> seems to provide good readings):
> 
> it8721-isa-0290
> Adapter: ISA adapter
> in0:          +0.95 V  (min =  +2.78 V, max =  +1.14 V)  ALARM
> in1:          +1.50 V  (min =  +0.00 V, max =  +3.01 V)
> in2:          +1.88 V  (min =  +2.66 V, max =  +2.27 V)  ALARM
> in3:          +2.05 V  (min =  +2.68 V, max =  +0.67 V)  ALARM
> in4:          +2.03 V  (min =  +3.04 V, max =  +1.42 V)  ALARM
> in5:          +3.05 V  (min =  +3.04 V, max =  +3.01 V)  ALARM
> in6:          +2.05 V  (min =  +2.77 V, max =  +1.87 V)  ALARM
> 3VSB:         +6.07 V  (min =  +1.10 V, max =  +4.56 V)  ALARM
> Vbat:         +3.34 V
> fan1:        3292 RPM  (min =   10 RPM)
> fan2:           0 RPM  (min =   10 RPM)  ALARM
> fan3:           0 RPM  (min =   13 RPM)  ALARM
> temp1:        +33.0°C  (low  = -65.0°C, high = -10.0°C)  sensor = thermistor
> temp2:        +40.0°C  (low  = -19.0°C, high = +127.0°C)  sensor =
> thermistor
> temp3:       -128.0°C  (low  = +119.0°C, high =  -2.0°C)  sensor = disabled
> intrusion0:  OK
> 
> atk0110-acpi-0
> Adapter: ACPI interface
> Vcore Voltage:      +0.95 V  (min =  +0.80 V, max =  +1.60 V)
> +3.3V Voltage:      +3.34 V  (min =  +2.97 V, max =  +3.63 V)
> +5V Voltage:        +5.13 V  (min =  +4.50 V, max =  +5.50 V)
> +12V Voltage:      +12.11 V  (min = +10.20 V, max = +13.80 V)

According to the DSDT code, these are in0, in4, in3 and in2, in this
order. So we can start with:

chip "it8728-isa-0290"

   label  in0  "Vcore"
   label  in2  "+12V"
   label  in3  "+5V"
   label  in4  "+3.3V"

Then the DSDT table gives the the following scaling factors, in order:
(0+1)/1, (0x0289+0x03E8)/0x03E8, (0x0F+0x0A)/0x0A and
(0xFF+0x2F)/0x2F. This translates to:

   compute in2  @ * ( 302/  82), @ / ( 302/  47)
   compute in3  @ * (  25/  10), @ / (  25/  10)
   compute in4  @ * (1649/1000), @ / (1649/1000)

in1 could be the south bridge or memory voltage (I doubt the BIOS
prints it? If you can over- or under-clock the memory voltage, that's
one way to know.) in5 is probably unused (too close from the ADC's
limit). in6 seems to be scaled down to around 2V, so it could be -12V
or 5VSB.

   ignore in5

Then, while Vbat is reasonable, 3VSB is not. The driver applies a
scaling factor of 2 that was correct for the IT8721F, but doesn't work
for you.

> CPU Fan Speed:     3276 RPM  (min =  600 RPM)
> Chassis Fan Speed:    0 RPM  (min =  600 RPM)

Obviously the first one is fan1, and I have no reason to believe the
second isn't fan2.

   label  fan1  "CPU Fan"
   label  fan2  "Chassis Fan"

> CPU Temperature:    +33.0°C  (high = +60.0°C, crit = +95.0°C)
> MB Temperature:     +40.0°C  (high = +45.0°C, crit = +75.0°C)

Obviously these are temp1 and temp2:

   label  temp1  "CPU Temp"
   label  temp2  "M/B Temp"

So all in all this means that the IT8728F indeed appears to be
compatible with the IT8721F, except for the 3VSB scaling factor (or
3VSB is incorrect on your system.) I guess we can solve this problem
later as we gather more information from several boards. Obviously,
best would be to get a datasheet, but apparently it's not going to
happen.

-- 
Jean Delvare

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