From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhang Rui Subject: Re: [RFC PATCH 1/6] ACPI: Introduce ACPI D3_COLD state support Date: Mon, 20 Feb 2012 13:39:13 +0800 Message-ID: <1329716353.1511.19.camel@rui.sh.intel.com> References: <1329124271-29464-1-git-send-email-ming.m.lin@intel.com> <201202142329.16516.rjw@sisk.pl> <1329376106.28581.5.camel@rui.sh.intel.com> <201202172323.18022.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mga02.intel.com ([134.134.136.20]:13619 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750932Ab2BTFjD (ORCPT ); Mon, 20 Feb 2012 00:39:03 -0500 In-Reply-To: <201202172323.18022.rjw@sisk.pl> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Rafael J. Wysocki" Cc: Lin Ming , Jeff Garzik , Alan Stern , Tejun Heo , Len Brown , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-pm@vger.kernel.org, ACPI Devel Mailing List On =E4=BA=94, 2012-02-17 at 23:23 +0100, Rafael J. Wysocki wrote: > > Okay, agreed. > > so how about this? _PR3 equals D3_HOT support. >=20 > Yes, I can agree with that. :-) >=20 > > > > Hmm, how about set D3_COLD support if _PR3 exists, but leave a = warning > > > > message if _OFF doesn't exist, for now? > > >=20 > > > I don't think we need to set D3_COLD support at all. In fact, it= is always > > > supported (as I said, if all power resources used by a device are= off, the > > > device is in D3_COLD pretty much by definition). > > >=20 > > Yeah, but it seems that Linux uses ACPI_D3 for both ACPICA D3_HOT a= nd D3 > > (off). I'm generating a patch to remove ACPI_D3_COLD and introduce > > D3_HOT support in Linux kernel. >=20 > That's a good idea in my opinion. Great. Patch will be sent out later. thanks, rui -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html