From patchwork Fri Oct 31 04:27:07 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tim Harvey X-Patchwork-Id: 5202151 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 36032C11AC for ; Fri, 31 Oct 2014 04:28:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6850D20176 for ; Fri, 31 Oct 2014 04:28:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7DEEE201ED for ; Fri, 31 Oct 2014 04:28:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752825AbaJaE1V (ORCPT ); Fri, 31 Oct 2014 00:27:21 -0400 Received: from mail-pd0-f178.google.com ([209.85.192.178]:56052 "EHLO mail-pd0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752656AbaJaE1U (ORCPT ); Fri, 31 Oct 2014 00:27:20 -0400 Received: by mail-pd0-f178.google.com with SMTP id fp1so6421718pdb.23 for ; Thu, 30 Oct 2014 21:27:19 -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=6B1Kd4FzTsld3gHK8C7VdYgq//jQz1+kq4QQ84HZJF0=; b=FI/ToM1cTP2EMfckJpuJRRrCs5YepRtoAbXVmekjqmXx+Wu8/5yeD8o3sbDiW8akTs BSwLPx5Ynrj2XlyFmFLYpfA5Ydp7AkaEuptoZiUsFESp1geu9yNBbp8gDYUQwBVPjsmc 1MAijA0/aS4B3Kk3nGtZY5EqgJAtUVKiNIfSVkhcVqHCifdNrSVqaJ7/8bRJfCerpfNd gYNoaLYlHO4Bepy3yKCzLXByx1UgyxI5jMtp79Cxz9uyxl2/hUASLgtMnq3zEphRYLp3 6oAGTebYeWyaUIunHhFABY2uwnjSdKkU6SnwaepZ5S+d7M4EQ3dAmclwG9XS2kryYCXH q66w== X-Gm-Message-State: ALoCoQmtXFfH0Hf+5OpSL4/Zb8jwv9sxg3T2lMrMPBzffyLzJ36VUUSxhQ8ud4CgRvP35zfNkm0+ X-Received: by 10.68.57.199 with SMTP id k7mr22060675pbq.80.1414729639490; Thu, 30 Oct 2014 21:27:19 -0700 (PDT) Received: from tharvey-gw.gw (68-189-91-139.static.snlo.ca.charter.com. [68.189.91.139]) by mx.google.com with ESMTPSA id mp5sm8542239pbc.33.2014.10.30.21.27.18 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 30 Oct 2014 21:27:18 -0700 (PDT) From: Tim Harvey To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Philipp Zabel , Fabio Estevam , Shawn Guo , Lucas Stach , Silvio F , Christian Hemp , Russell King , Iain Paton , linux-pm@vger.kernel.org Subject: [PATCH 1/5] regulator: add function to determine if 2 regulators are the same Date: Thu, 30 Oct 2014 21:27:07 -0700 Message-Id: <1414729631-11005-2-git-send-email-tharvey@gateworks.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1414729631-11005-1-git-send-email-tharvey@gateworks.com> References: <1414729631-11005-1-git-send-email-tharvey@gateworks.com> 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 Regulator structures can point to the same internal regulator dev's but as that information is private we need to expose a function to determine if two regulators do so. Cc: linux-pm@vger.kernel.org Signed-off-by: Tim Harvey --- drivers/regulator/core.c | 17 +++++++++++++++++ include/linux/regulator/consumer.h | 8 ++++++++ 2 files changed, 25 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index cd87c0c..6d4a627 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2184,6 +2184,23 @@ int regulator_is_enabled(struct regulator *regulator) EXPORT_SYMBOL_GPL(regulator_is_enabled); /** + * regulator_is_same - are two regulators the same + * @regulator1: regulator source + * @regulator2: regulator source + * + * Returns positive if both regulators point to the same regulator_dev. + */ +int regulator_is_same(struct regulator *regulator1, + struct regulator *regulator2) +{ + if (!regulator1 || !regulator2) + return -EINVAL; + + return (regulator1->rdev == regulator2->rdev) ? 1 : 0; +} +EXPORT_SYMBOL_GPL(regulator_is_same); + +/** * regulator_can_change_voltage - check if regulator can change voltage * @regulator: regulator source * diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index d347c80..972090a 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -200,6 +200,8 @@ int __must_check regulator_enable(struct regulator *regulator); int regulator_disable(struct regulator *regulator); int regulator_force_disable(struct regulator *regulator); int regulator_is_enabled(struct regulator *regulator); +int regulator_is_same(struct regulator *regulator1, + struct regulator *regulator2); int regulator_disable_deferred(struct regulator *regulator, int ms); int __must_check regulator_bulk_get(struct device *dev, int num_consumers, @@ -387,6 +389,12 @@ static inline int regulator_is_enabled(struct regulator *regulator) return 1; } +static inline int regulator_is_same(struct regulator *regulator1, + struct regulator *regulator2) +{ + return 0; +} + static inline int regulator_bulk_get(struct device *dev, int num_consumers, struct regulator_bulk_data *consumers)