From patchwork Wed May 14 08:03:52 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chander Kashyap X-Patchwork-Id: 4173361 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D74BBBFF02 for ; Wed, 14 May 2014 08:04:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1830A20373 for ; Wed, 14 May 2014 08:04:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 335A22034E for ; Wed, 14 May 2014 08:04:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753122AbaENIE0 (ORCPT ); Wed, 14 May 2014 04:04:26 -0400 Received: from mail-pb0-f52.google.com ([209.85.160.52]:61427 "EHLO mail-pb0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752981AbaENIET (ORCPT ); Wed, 14 May 2014 04:04:19 -0400 Received: by mail-pb0-f52.google.com with SMTP id rr13so1378759pbb.25 for ; Wed, 14 May 2014 01:04:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=ARXGsT0v+MkLAjS06fzgrvzZLSjC6KTEapISJ/2dYlo=; b=EUKgulfupNLLITO7KSw1l9NjklZi+DDy2UQqRYH5+VoDIBL4cVLDJmXl0dgQ2hvyNw tf4JW2WftNbHRuWuyqNjMZntKbcKhABwU8Hw6riaY2FG8P/SytKVDeU/IpdXwfAt1ylP UQV3UlWOepX7lNvgHnvgJaA+QSmQucyiFOfR7y0KWHqmhdfOPj6ayG5tpTOg7K/ge78H mdrzU9ZTgYAL8SNEOt9TyrmfnsQnDViG1e6xONRK7+93m7GjiE9nklqUIJf+qh990X4a 1W+bU20+2banWgBWD0nauwJesxe8wz6quQ/MfoAzSs3sxPbblhe7AlpqXenWNwQ/H1Ss KEEA== X-Gm-Message-State: ALoCoQlBEBIe+OJ5WGUiO5dKT38JMvjPCug0UxCP+SiKoBddjYQiF4FuqFCNsZni9Hw0HY8VzBos X-Received: by 10.66.163.2 with SMTP id ye2mr2532019pab.110.1400054659090; Wed, 14 May 2014 01:04:19 -0700 (PDT) Received: from localhost.localdomain ([14.140.216.146]) by mx.google.com with ESMTPSA id as12sm4807422pac.43.2014.05.14.01.04.14 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 14 May 2014 01:04:18 -0700 (PDT) From: Chander Kashyap To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: daniel.lezcano@linaro.org, lorenzo.pieralisi@arm.com, rjw@rjwysocki.net, kgene.kim@samsung.com, Chander Kashyap , Chander Kashyap Subject: [PATCH v5 1/6] driver: cpuidle-big-little: add of_device_id structure Date: Wed, 14 May 2014 13:33:52 +0530 Message-Id: <1400054637-21505-2-git-send-email-chander.kashyap@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1400054637-21505-1-git-send-email-chander.kashyap@linaro.org> References: <1400054637-21505-1-git-send-email-chander.kashyap@linaro.org> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 This driver will be used by many big.Little Soc's. As of now it does string matching of hardcoded compatible string to init the driver. This comparison list will keep on growing with addition of new SoC's. Hence add of_device_id structure to collect the compatible strings of SoC's using this driver. Signed-off-by: Chander Kashyap Signed-off-by: Chander Kashyap --- drivers/cpuidle/cpuidle-big_little.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c index b45fc62..4cd02bd 100644 --- a/drivers/cpuidle/cpuidle-big_little.c +++ b/drivers/cpuidle/cpuidle-big_little.c @@ -163,14 +163,23 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int cpu_id) return 0; } +static const struct of_device_id compatible_machine_match[] = { + { .compatible = "arm,vexpress,v2p-ca15_a7" }, + {}, +}; + static int __init bl_idle_init(void) { int ret; + struct device_node *root = of_find_node_by_path("/"); + + if (!root) + return -ENODEV; /* * Initialize the driver just for a compliant set of machines */ - if (!of_machine_is_compatible("arm,vexpress,v2p-ca15_a7")) + if (!of_match_node(compatible_machine_match, root)) return -ENODEV; /* * For now the differentiation between little and big cores