More power patches

[M. Warner Losh]

In message: <20040108020418.V622 at korben.in.tern>
            Lukas Ertl <l.ertl at univie.ac.at> writes:
: Mounting root from ufs:/dev/ad0s2a
:     ACPI-1287: *** Error: Method execution failed [\\_SB_.PCI0.LPC_.EC__.GBST] (Node 0xc440d2c0), AE_AML_INTERNAL
:     ACPI-1287: *** Error: Method execution failed [\\_SB_.PCI0.LPC_.EC__.BAT0._BST] (Node 0xc44112c0), AE_AML_INTERNAL

This suggests, contrary to my last message, that maybe the turning
things off (D3) on the PCI bus might be bad.  Maybe this is the cause:

pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
pci0:31:3: setting power state D3

since I know some batteries are connected via the SMBus.

Warner