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: 4173551 Return-Path: X-Original-To: patchwork-linux-arm@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 B0A0A9F3AE for ; Wed, 14 May 2014 08:07:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EAF742035C for ; Wed, 14 May 2014 08:07:29 +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 17F0A2034E for ; Wed, 14 May 2014 08:07:29 +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 1WkUB9-0002FA-6O; Wed, 14 May 2014 08:04:43 +0000 Received: from mail-pa0-f42.google.com ([209.85.220.42]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WkUB7-0002Cq-2q for linux-arm-kernel@lists.infradead.org; Wed, 14 May 2014 08:04:41 +0000 Received: by mail-pa0-f42.google.com with SMTP id rd3so1392274pab.1 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=iY2INFLv2mLMsJnSo91h+ITl4QDUodCI8qF4K/QGccY5bGkomh4I86t+3AyputL1Xs ShkoAzPyGy4viQM1y/7XiBKz2p6qzP3A/7HUpTY6zCIJgvRQTmciuCEIlQAarxDw28OM BUVLxPqV6U55bOfGXy3hIj2WQd07RIxHhS2hwDfu/ZXlKs8g9Y26gF8wUInCnrSNNuV1 6YZe3JscMe5yTi+HoC5fff8HSwDRftHbI7DpQEDqS/0fSMPly/G+5t5vfYXWIfTbS481 tUOwDtnhfm3YoKfF11DcxO2vRp6/qMWdjbv+Upjy48694KomsUy1O9RuW1za6BSexKS5 /tWg== X-Gm-Message-State: ALoCoQmhJqF9AX9jkusVd/twkyGS49Jc6Nkfn3LgOFYQfVlRiQY9SNDJGs8fxDz5Dp9f7/6ySQB8 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 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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140514_010441_143960_B8698ACC X-CRM114-Status: GOOD ( 14.64 ) X-Spam-Score: -0.7 (/) Cc: Chander Kashyap , lorenzo.pieralisi@arm.com, daniel.lezcano@linaro.org, rjw@rjwysocki.net, Chander Kashyap , kgene.kim@samsung.com 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 --- 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