From mboxrd@z Thu Jan 1 00:00:00 1970 From: "thilo.cestonaro@ts.fujitsu.com" Subject: i2c-i801 and ACPI resource conflict Date: Thu, 31 Mar 2016 06:45:57 +0000 Message-ID: <1459406614.29230.4.camel@ts.fujitsu.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=sha-1; protocol="application/x-pkcs7-signature"; boundary="=-K461iq2k3EkQlv1jZItL" Return-path: Received: from mail1.bemta3.messagelabs.com ([195.245.230.176]:48215 "EHLO mail1.bemta3.messagelabs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755811AbcCaGxO (ORCPT ); Thu, 31 Mar 2016 02:53:14 -0400 Received: from R01UKEXCASM123.r01.fujitsu.local (ex2k13_123.fs.fujitsu.com [10.183.43.175]) by mailhost2.uk.fujitsu.com (8.14.5/8.14.5) with ESMTP id u2V6lMp4015456 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=FAIL) for ; Thu, 31 Mar 2016 07:47:22 +0100 Content-Language: en-US Sender: linux-i2c-owner@vger.kernel.org List-Id: linux-i2c@vger.kernel.org To: "linux-i2c@vger.kernel.org" --=-K461iq2k3EkQlv1jZItL Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hey! Whenever I load the i2c-i801 smbus controller module I get a resource conflict with the ACPI: ----------------------- ACPI Warning: SystemIO range 0x000000000000F040-0x000000000000F05F conflicts with OpRegion 0x000000000000F040-0x000000000000F04F (\_SB_.PCI0.SBUS.SMBI) (20150619/utaddress-254) ----------------------- This resource conflict is due to some ASL code in the BIOS claiming the resource. What should be done to fix that sort of resource conflict? Does the BIOS vendor need to remove the ASL code, or should the driver do something different or do I need to write a module which uses the ACPI to access the smbus controller? Any hints would be nice! Thanks! 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