Subject: CVS commit: src/sys/dev (PR kern/36744)
To: None <firstname.lastname@example.org>
From: Simon Burge <simonb@NetBSD.org>
Date: 09/05/2007 16:07:13
Jeff Rizzo wrote:
> Module Name: src
> Committed By: riz
> Date: Sat Sep 1 22:19:25 UTC 2007
> Modified Files:
> src/sys/dev/i2c: i2c.c
> src/sys/dev/pci: ichsmb.c nfsmb.c
> Log Message:
> For SMBus, add the ability to enumerate devices on the bus.
> This does NOT identify the devices, merely indicates the
> presence of devices at certain addresses. Tested on ichsmb
> and nfsmb - other SMBus devices will need to ensure the
> proper bus type is set. (I2C_TYPE_SMBUS)
> >From Nicolas Joly, via Paul Goyette, in PR#36744.
For reasons I can not fathom, this change causes my Dell 640m laptop
to powerdown when I use reboot(8), instead of rebooting normally.
This happens with both UP and MP kernels, and both on HEAD and on the
Here's some dmesg:
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pci0: generic device class power management enabled
pci0: supported states: D0 D3
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82945GM/PM/GMS Host Bridge (rev. 0x03)
ichsmb0 at pci0 dev 31 function 3: Intel 82801GB/GR SMBus Controller (rev. 0x01)
ichsmb0: interrupting at ioapic0 pin 17 (irq 4)
iic0 at ichsmb0: I2C bus
iic0: WARNING: power management not supported
ichsmb0: WARNING: power management not supported
I can include full dmesg if needed.
For now, I've just commented out the
iba.iba_type = I2C_TYPE_SMBUS;
sys/dev/pci/ichsmb.c and that gets things working for me again.
I've no idea what do about this... Should I at least reopen the PR?