From patchwork Fri Mar 16 04:08:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajendra Nayak X-Patchwork-Id: 10286375 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C7A7E60386 for ; Fri, 16 Mar 2018 04:10:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C0BE128D24 for ; Fri, 16 Mar 2018 04:10:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B4F8E28D35; Fri, 16 Mar 2018 04:10:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5720E28D24 for ; Fri, 16 Mar 2018 04:10:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751014AbeCPEIs (ORCPT ); Fri, 16 Mar 2018 00:08:48 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:48934 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750748AbeCPEIr (ORCPT ); Fri, 16 Mar 2018 00:08:47 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 7D20D60C65; Fri, 16 Mar 2018 04:08:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1521173326; bh=8scnGyx72aKiOYRUUC8LfDI91ddLx4YKdiZ8oo5mM8A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aB8/mvhGDkucA6d0Nkaq5Njq2BivS2QVh0NJKHnbhbdXfwQcnobiTyMTUnC/A79F6 1pccGF5AfA4SXUa1YBNwVhKIrdeSfnTojPRTMYoIVA17rgzS0YsT1v6cEYDne9gTeC HOhNugTD/jQ+ntMi2mVYpioC+KvAbOGsiSaUXwzA= Received: from blr-ubuntu-173.qualcomm.com (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.18.19]) (using TLSv1.1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: rnayak@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 8B10260452; Fri, 16 Mar 2018 04:08:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1521173325; bh=8scnGyx72aKiOYRUUC8LfDI91ddLx4YKdiZ8oo5mM8A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Xs1c2iJDY0LlNKNX+u/BrJ6G5nmWK8mdgmX5JWJubFKmgGQ35kckaKYdcK1J42N3D HV9F+k9EsbL8xvYp0ig46DJ3lrtEq1B/zNifMHbYDQ16zoSO1xcgwzU262jWIhWgVt L7XYT/CnNeT+sNO4lYdsHHzCEubuBkxrGWJfFuCM= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8B10260452 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=rnayak@codeaurora.org From: Rajendra Nayak To: viresh.kumar@linaro.org, sboyd@kernel.org, andy.gross@linaro.org, ulf.hansson@linaro.org Cc: devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Rajendra Nayak Subject: [PATCH 1/7] PM / OPP: Add dev_pm_opp_get_of_node() Date: Fri, 16 Mar 2018 09:38:18 +0530 Message-Id: <20180316040824.21472-2-rnayak@codeaurora.org> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180316040824.21472-1-rnayak@codeaurora.org> References: <20180316040824.21472-1-rnayak@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Viresh Kumar This adds a new helper to let the power domain drivers to access opp->np, so that they can read platform specific properties from the node. Signed-off-by: Viresh Kumar Signed-off-by: Rajendra Nayak --- drivers/opp/of.c | 19 +++++++++++++++++++ include/linux/pm_opp.h | 5 +++++ 2 files changed, 24 insertions(+) diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 21265af55117..b17715bc3c0a 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -736,3 +736,22 @@ struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device *dev, return opp; } EXPORT_SYMBOL_GPL(of_dev_pm_opp_find_required_opp); + +/** + * dev_pm_opp_get_of_node() - Gets the DT node corresponding to an opp + * @opp: opp for which DT node has to be returned for + * + * Return: DT node corresponding to the opp, else 0 on success. + * + * The caller needs to put the node of_node_put() after using it. + */ +struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp) +{ + if (IS_ERR_OR_NULL(opp)) { + pr_err("%s: Invalid parameters\n", __func__); + return NULL; + } + + return of_node_get(opp->np); +} +EXPORT_SYMBOL_GPL(dev_pm_opp_get_of_node); diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 528a7d9cf2ef..099b31960dec 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -300,6 +300,7 @@ void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask); int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask); struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev); struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device *dev, struct device_node *np); +struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp); #else static inline int dev_pm_opp_of_add_table(struct device *dev) { @@ -338,6 +339,10 @@ static inline struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device * { return NULL; } +static inline struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp) +{ + return NULL; +} #endif #endif /* __LINUX_OPP_H__ */