Re: [lm-sensors] dme1737 0-002e: Write to register 0x30 failed!

[Jean Delvare <khali@linux-fr.org>]

On Tue, 23 Oct 2007 23:54:24 +0200, Rudolf Marek wrote:
> > etc etc. This appears to be the half-standard ATK0110 implementation
> > for which a driver was posted to the lm-sensors list a few months ago.
> > Maybe for this motherboard you should use this driver rather than the
> > dme1737 driver. Adding Rudolf in Cc, I think he knows more about this
> > driver's status.
> 
> Hmm dont know more it seems. Perhaps contact original author? Those ACPI 
> routines are not called unless the TMP method for thermal stuff is called. So If 
> there will be no readings from the acpi thermal sysfs/proc file the method will 
> not run (in theory if the code is write like here)

Even if the ACPI thermal driver is set to automatic polling mode?

> > The DSDT also includes references to the nforce2's SMBus:
> > 
> >             Device (SMB0)
> >             {
> >                 Name (_ADR, 0x000A0001)
> >                 OperationRegion (SMCF, PCI_Config, 0x48, 0x10)
> >                 Field (SMCF, DWordAcc, NoLock, Preserve)
> >                 {
> >                     SMPM,   4, 
> >                     SMT1,   28, 
> >                     SMT2,   32
> >                 }
> > 
> >                 OperationRegion (SMCA, PCI_Config, 0x20, 0x08)
> >                 Field (SMCA, DWordAcc, NoLock, Preserve)
> >                 {
> >                     SB1,    32, 
> >                     SB2,    32
> >                 }
> > 
> >                 OperationRegion (PDEV, PCI_Config, 0xE8, 0x04)
> >                 Scope (\)
> >                 {
> >                     Field (\_SB.PCI0.SMB0.PDEV, AnyAcc, NoLock, Preserve)
> >                     {
> >                             ,   12, 
> >                         ACIE,   1
> >                     }
> >                 }
> > 
> >                 Method (SMBB, 0, NotSerialized)
> >                 {
> >                     If (PCIA)
> >                     {
> >                         And (SB1, 0xFFFE, Local0)
> >                     }
> >                     Else
> >                     {
> >                         Store (0x4C00, Local0)
> >                     }
> > 
> >                     Return (Local0)
> >                 }
> >             }
> > 
> > So at the very least I'd say it's not safe to use the i2c-nforce2 and
> > dme1737 drivers when the fan and thermal ACPI drivers are in use. But
> > it may even not be safe when these ACPI drivers aren't loaded, I don't
> > know.
> 
> It depends what methods are called. Imho if you remove the "thermal" support 
> from the ACPI it should be ok. If someone gives me the table, I can take a look.

I'll send it to you in private.

-- 
Jean Delvare

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