From patchwork Mon May 5 08:27:20 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chander Kashyap X-Patchwork-Id: 4112571 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 D3780C0ACC for ; Mon, 5 May 2014 08:31:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0B2F720398 for ; Mon, 5 May 2014 08:31:47 +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 66FAA20254 for ; Mon, 5 May 2014 08:31:45 +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 1WhEFt-0002F5-5E; Mon, 05 May 2014 08:28:09 +0000 Received: from mail-ie0-f170.google.com ([209.85.223.170]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WhEFp-00028m-Vf for linux-arm-kernel@lists.infradead.org; Mon, 05 May 2014 08:28:06 +0000 Received: by mail-ie0-f170.google.com with SMTP id rd18so7736614iec.15 for ; Mon, 05 May 2014 01:27:42 -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=Czswwaal3VgT+dlnTjjqGvdmkTm8oC03FaLODkYaM88PF64FypJueHjJ3c/arF+Z3x AFy5DdLOuaIbQXCOPb4hv707hqMjcDihHLvXsbDGAwM5F56auZFboiBSfSYXStHPh5Wb 11ex8oH2Pva11RPzPt3Bx+wcKA2QRgq0UCwCV0dc04gkzkR5/z6pfXewTKPU4jcjcAv+ jm0inDx0OtPX46tBR2tQxDsouJ3yW0/BBZYseEsNEb+BPceL07Aih0SUdaBtRs4mViIX jrFvXplD9oWAzGwSmJg8bjr+ZoML13Ids2O7mnsN5QqbUxBtR31kGayVR+EmSi6j1XaS ju/w== X-Gm-Message-State: ALoCoQmjkkx2ZkXij/p54gtkfyKqPn87aDvDze4rHI9tpfFaq4IZRXWMmQEe0Aq9RWYinYC+aJ1U X-Received: by 10.42.120.15 with SMTP id d15mr31501448icr.35.1399278462842; Mon, 05 May 2014 01:27:42 -0700 (PDT) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPSA id d10sm25050399igc.8.2014.05.05.01.27.39 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 05 May 2014 01:27:42 -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 v3 1/5] driver: cpuidle-big-little: add of_device_id structure Date: Mon, 5 May 2014 13:57:20 +0530 Message-Id: <1399278444-8312-2-git-send-email-chander.kashyap@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1399278444-8312-1-git-send-email-chander.kashyap@linaro.org> References: <1398245154-18771-1-git-send-email-chander.kashyap@linaro.org> <1399278444-8312-1-git-send-email-chander.kashyap@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140505_012806_055660_E08643B1 X-CRM114-Status: GOOD ( 14.65 ) X-Spam-Score: -0.7 (/) Cc: Chander Kashyap , kgene.kim@samsung.com, daniel.lezcano@linaro.org, rjw@rjwysocki.net, Chander Kashyap , lorenzo.pieralisi@arm.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