Re: ACPI blocking I2C driver - Poulsbo

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On Wed, Apr 06, 2011 at 11:02:23AM -0400, simon@xxxxxxxxxxxxx wrote:

> > [  403.809826] ACPI: resource (null) [io  0x0480-0x04bf] conflicts with
> > ACPI region PHO_ [io 0x4bc-0x4bc]
> > [  403.809834] ACPI: If an ACPI driver is available for this device, you
> > should use it instead of the native driver
> > [  403.809921] lpc_sch: probe of 0000:00:1f.0 failed with error -16

Your DSDT contains:

    OperationRegion (PHO, SystemIO, 0x04BC, One)

We won't touch the same region because of the risk of races between the 
firmware and the kernel. Boot with acpi_enforce_resources=lax if you 
think it's safe. Alternatively, if the i2c driver doesn't need the 0x4bc 
address, fix it not to request it.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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