From patchwork Fri May 16 08:03:53 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chander Kashyap X-Patchwork-Id: 4188151 Return-Path: X-Original-To: patchwork-linux-arm@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 1DA2CBFF02 for ; Fri, 16 May 2014 08:07:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5966920165 for ; Fri, 16 May 2014 08:07:45 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9466A20306 for ; Fri, 16 May 2014 08:07:43 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WlD8P-0000wN-Up; Fri, 16 May 2014 08:04:53 +0000 Received: from mail-pa0-f54.google.com ([209.85.220.54]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WlD8H-0000l3-6D for linux-arm-kernel@lists.infradead.org; Fri, 16 May 2014 08:04:45 +0000 Received: by mail-pa0-f54.google.com with SMTP id bj1so2228793pad.41 for ; Fri, 16 May 2014 01:04:24 -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=NQkkR7VZkv1DNKDVCc2dLQGIDJoSwHWNzHxvGsykJ+ikmxPwDkBIwdkGLLKpDaLoVN Hg25+8nutR5DRHK+zutzcfIAwWhKeYHOHdZEg6G1ElKlr18NluGG6aX7zpfffx8JEnM8 wnTqDA/sZbgpIUHAjpZ3Y3AT6JmnLyCiCerHMasgAZgqtsMJFmcRFEekHSMXbB6fivXc TaOocYoGMeKLT5xMT+ifwOWiZyomFaEI1JdV/S4P8clvMYULnkJ1eQ0BtIZFBbm1m7T6 bFuPpJF8+PKQTEGlboYMhtzwwb3rVjSEu4IPd0ktoy9ZnngmT9gOo64JdN6isTB1OzwM xWqQ== X-Gm-Message-State: ALoCoQm/hAPEDIVkYLo1rMllKfHbTld5zOWAeyvVPqfkytfnwSDEeSwKlQAz37diG79I6sF5+l19 X-Received: by 10.68.241.68 with SMTP id wg4mr18849608pbc.66.1400227464116; Fri, 16 May 2014 01:04:24 -0700 (PDT) Received: from localhost.localdomain ([14.140.216.146]) by mx.google.com with ESMTPSA id gu1sm13108466pbd.0.2014.05.16.01.04.20 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 16 May 2014 01:04:23 -0700 (PDT) From: Chander Kashyap To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH v6 1/6] driver: cpuidle-big-little: add of_device_id structure Date: Fri, 16 May 2014 13:33:53 +0530 Message-Id: <1400227438-27155-2-git-send-email-chander.kashyap@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1400227438-27155-1-git-send-email-chander.kashyap@linaro.org> References: <1400227438-27155-1-git-send-email-chander.kashyap@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140516_010445_285529_2A03E8A6 X-CRM114-Status: GOOD ( 14.17 ) X-Spam-Score: -0.7 (/) Cc: Chander Kashyap , lorenzo.pieralisi@arm.com, daniel.lezcano@linaro.org, rjw@rjwysocki.net, tomasz.figa@gmail.com, Chander Kashyap , kgene.kim@samsung.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,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 Acked-by: Daniel Lezcano --- 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