From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Drake Subject: Re: [PATCH] ACPI / EC: handle ECDT EC and DSDT EC simultaneously Date: Wed, 3 May 2017 14:06:27 -0600 Message-ID: References: <20170420201219.21568-1-drake@endlessm.com> <1AE640813FDE7649BE1B193DEA596E886CE9973E@SHSMSX101.ccr.corp.intel.com> <2213549.Q4Z823dSPo@aspire.rjw.lan> <1AE640813FDE7649BE1B193DEA596E886CE9A1C9@SHSMSX101.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Received: from mail-io0-f177.google.com ([209.85.223.177]:33671 "EHLO mail-io0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757705AbdECUG3 (ORCPT ); Wed, 3 May 2017 16:06:29 -0400 Received: by mail-io0-f177.google.com with SMTP id p24so18426873ioi.0 for ; Wed, 03 May 2017 13:06:29 -0700 (PDT) In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Zheng, Lv" Cc: "Rafael J. Wysocki" , "lenb@kernel.org" , "linux-acpi@vger.kernel.org" , "chiu@endlessm.com" , "linux@endlessm.com" Hi Lv, On Fri, Apr 28, 2017 at 6:52 AM, Daniel Drake wrote: > In the DSDT you were looking at the H_EC device, but for whatever > reason, there are two ECs in this DSDT and the one that Linux picks up > is the 2nd one, \_SB_.PCI0.LPCB.EC0. > > This device has no _STA but does have valid _CRS, and the debug patch > results agree: > > ACPI : EC: acpi_ec_dsdt_probe: search for DSDT EC > ACPI : EC: ec_parse_device: _STA status 5 val 0 > ACPI : EC: ec_parse_device: _CRS status 0 command 66 data 62 > ACPI : EC: EC stopped > ACPI : EC: EC started > ACPI: \_SB_.PCI0.LPCB.EC0_: Used as first EC How do we proceed here? Any other options we can try that don't involve DMI quirking? Thanks Daniel