2012-10-04 14:14:46

by Miles Lane

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Subject: 3.6.0+ (GIT) -- lpc_ich: Resource conflict(s) found affecting gpio_ich

ACPI Warning: 0x0000000000000828-0x000000000000082f SystemIO conflicts
with Region \PMIO 1 (20120711/utaddress-251)
ACPI: If an ACPI driver is available for this device, you should use
it instead of the native driver
ACPI Warning: 0x0000000000000500-0x000000000000053f SystemIO conflicts
with Region \GPIO 1 (20120711/utaddress-251)
ACPI: If an ACPI driver is available for this device, you should use
it instead of the native driver
lpc_ich: Resource conflict(s) found affecting gpio_ich


2012-10-06 00:10:01

by Peter Tyser

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Subject: Re: 3.6.0+ (GIT) -- lpc_ich: Resource conflict(s) found affecting gpio_ich

Hi Miles,

On Thu, 2012-10-04 at 10:14 -0400, Miles Lane wrote:
> ACPI Warning: 0x0000000000000828-0x000000000000082f SystemIO conflicts
> with Region \PMIO 1 (20120711/utaddress-251)
> ACPI: If an ACPI driver is available for this device, you should use
> it instead of the native driver
> ACPI Warning: 0x0000000000000500-0x000000000000053f SystemIO conflicts
> with Region \GPIO 1 (20120711/utaddress-251)
> ACPI: If an ACPI driver is available for this device, you should use
> it instead of the native driver
> lpc_ich: Resource conflict(s) found affecting gpio_ich

Jean Delvare submitted a patch which may allow you to use the GPIO pins
in banks not claimed by the BIOS:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=4f600ada70beeb1dfe08e11e871bf31015aa0a3d

This patch is not in 3.6, but will be included in 3.7.

You could also try adding "acpi_enforce_resources=lax" or
"acpi_enforce_resources=no" to your kernel parameters to disable the
ACPI conflict checking. Note this could have other unintended
consequences.

Best,
Peter