From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752630AbcEKPGk (ORCPT ); Wed, 11 May 2016 11:06:40 -0400 Received: from foss.arm.com ([217.140.101.70]:53241 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752193AbcEKPGi (ORCPT ); Wed, 11 May 2016 11:06:38 -0400 From: Sudeep Holla Subject: Re: [PATCH v4 4/5] arm64: add support for ACPI Low Power Idle(LPI) To: "Rafael J. Wysocki" References: <1461069013-13292-1-git-send-email-sudeep.holla@arm.com> <1461069013-13292-5-git-send-email-sudeep.holla@arm.com> <3620725.8soc3SaFWB@vostro.rjw.lan> Cc: Sudeep Holla , 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 Organization: ARM Message-ID: <57334A75.10207@arm.com> Date: Wed, 11 May 2016 16:06:29 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: <3620725.8soc3SaFWB@vostro.rjw.lan> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/05/16 01:07, Rafael J. Wysocki wrote: > 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? > That's stupid of me, I removed it from the driver in v4 but the few remnants of it stayed by mistake(mainly in this patch alone) > I thought supporting LPI would not require an arch Kconfig option. > That's correct. -- Regards, Sudeep