From patchwork Tue Aug 20 09:30:08 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudeep KarkadaNagesha X-Patchwork-Id: 2846972 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 71FCD9F271 for ; Tue, 20 Aug 2013 09:35:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 39CCE204D9 for ; Tue, 20 Aug 2013 09:35:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 17E5720483 for ; Tue, 20 Aug 2013 09:35:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751133Ab3HTJef (ORCPT ); Tue, 20 Aug 2013 05:34:35 -0400 Received: from service87.mimecast.com ([91.220.42.44]:34556 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750927Ab3HTJaP (ORCPT ); Tue, 20 Aug 2013 05:30:15 -0400 Received: from cam-owa2.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Tue, 20 Aug 2013 10:30:13 +0100 Received: from e103737-lin.cambridge.arm.com ([10.1.255.212]) by cam-owa2.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 20 Aug 2013 10:30:11 +0100 From: Sudeep KarkadaNagesha To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Sudeep.KarkadaNagesha@arm.com, Viresh Kumar , Greg Kroah-Hartman , Benjamin Herrenschmidt , Jonas Bonn , Michal Simek , "Rafael J. Wysocki" , Grant Likely , Rob Herring , Sudeep KarkadaNagesha Subject: [PATCH v4 06/19] driver/core: cpu: initialize of_node in cpu's device struture Date: Tue, 20 Aug 2013 10:30:08 +0100 Message-Id: <1376991021-12160-7-git-send-email-Sudeep.KarkadaNagesha@arm.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1376991021-12160-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> References: <1374492747-13879-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> <1376991021-12160-1-git-send-email-Sudeep.KarkadaNagesha@arm.com> X-OriginalArrivalTime: 20 Aug 2013 09:30:11.0677 (UTC) FILETIME=[DE57E0D0:01CE9D87] X-MC-Unique: 113082010301301801 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-9.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sudeep KarkadaNagesha CPUs are also registered as devices but the of_node in these cpu devices are not initialized. Currently different drivers requiring to access cpu device node are parsing the nodes themselves and initialising the of_node in cpu device. The of_node in all the cpu devices needs to be initialized properly and at one place. The best place to update this is CPU subsystem driver when registering the cpu devices. The OF/DT core library now provides of_get_cpu_node to retrieve a cpu device node for a given logical index by abstracting the architecture specific details. This patch uses of_get_cpu_node to assign of_node when registering the cpu devices. Cc: Greg Kroah-Hartman Acked-by: Rob Herring Signed-off-by: Sudeep KarkadaNagesha Acked-by: Greg Kroah-Hartman --- drivers/base/cpu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 4c358bc..4cf0717 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "base.h" @@ -289,6 +290,7 @@ int register_cpu(struct cpu *cpu, int num) cpu->dev.release = cpu_device_release; cpu->dev.offline_disabled = !cpu->hotpluggable; cpu->dev.offline = !cpu_online(num); + cpu->dev.of_node = of_get_cpu_node(num, NULL); #ifdef CONFIG_ARCH_HAS_CPU_AUTOPROBE cpu->dev.bus->uevent = arch_cpu_uevent; #endif