From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753189AbcEKAET (ORCPT ); Tue, 10 May 2016 20:04:19 -0400 Received: from cloudserver094114.home.net.pl ([79.96.170.134]:65015 "HELO cloudserver094114.home.net.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752303AbcEKAES (ORCPT ); Tue, 10 May 2016 20:04:18 -0400 From: "Rafael J. Wysocki" To: Sudeep Holla Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Lorenzo Pieralisi , Al Stone , Prashanth Prakash , Ashwin Chaugule , Mark Rutland Subject: Re: [PATCH v4 4/5] arm64: add support for ACPI Low Power Idle(LPI) Date: Wed, 11 May 2016 02:07:38 +0200 Message-ID: <3620725.8soc3SaFWB@vostro.rjw.lan> User-Agent: KMail/4.11.5 (Linux/4.5.0-rc1+; KDE/4.11.5; x86_64; ; ) In-Reply-To: <1461069013-13292-5-git-send-email-sudeep.holla@arm.com> References: <1461069013-13292-1-git-send-email-sudeep.holla@arm.com> <1461069013-13292-5-git-send-email-sudeep.holla@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday, April 19, 2016 01:30:12 PM Sudeep Holla wrote: > This patch adds appropriate callbacks to support ACPI Low Power Idle > (LPI) on ARM64. > > It also selects ARCH_SUPPORTS_ACPI_PROCESSOR_LPI if ACPI is enabled > on ARM64. Can you remind me why we need the ARCH_SUPPORTS_ACPI_PROCESSOR_LPI thing in addition to the previously defined ARCH_SUPPORTS_ACPI_PROCESSOR_CSTATE? I thought supporting LPI would not require an arch Kconfig option. Thanks, Rafael