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: 4112531 Return-Path: X-Original-To: patchwork-linux-samsung-soc@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 96751BFF02 for ; Mon, 5 May 2014 08:29:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C62A9203E6 for ; Mon, 5 May 2014 08:29:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0301320398 for ; Mon, 5 May 2014 08:29:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755335AbaEEI3i (ORCPT ); Mon, 5 May 2014 04:29:38 -0400 Received: from mail-ie0-f178.google.com ([209.85.223.178]:44304 "EHLO mail-ie0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754999AbaEEI1n (ORCPT ); Mon, 5 May 2014 04:27:43 -0400 Received: by mail-ie0-f178.google.com with SMTP id lx4so7476746iec.23 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=hjtMi/GCIiZDxo+VhokFo2gfmneq76++CeN3kNg5MGcFLagygbgsHLdxwxEcxttDlj 9VniZz0ZUm10ozmsAUmvKqmmVuXZL4FA0p0LLeylrGxgL4LQFsL9UGWCojFFbaXM250/ GyAcwSX9d9TVyQisP9Uiou6n+Ida0v8snEsxdJes4OC/N9wCedO6XsT3riC518Og4Don 2DrAs/CW2wJWWotwTOOazJh7Ok2BOQRxahyIU5VfhjdvOMoajC9fHzr4EA/ocH80EFrL 3xHRaz9ZnsG3Bi3rUTZHR+mDHNDRITt+w2CoehmYvVWWmshxvhnnIbH8bzZex8suSsmI CGvg== X-Gm-Message-State: ALoCoQmVEDX7JVJPcjvxysQZ+DOT9R0vPrv675V9dgp4Kmjt8S+Fs6T3kyZYhvxuG4PzvC3cnJaW 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 Cc: lorenzo.pieralisi@arm.com, daniel.lezcano@linaro.org, rjw@rjwysocki.net, kgene.kim@samsung.com, Chander Kashyap , Chander Kashyap 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> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@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=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 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