From patchwork Fri May 25 20:30:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthias Kaehlcke X-Patchwork-Id: 10428463 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 536EF6032C for ; Fri, 25 May 2018 20:32:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4657029772 for ; Fri, 25 May 2018 20:32:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3B01329798; Fri, 25 May 2018 20:32:22 +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=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI 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 E1E7B29772 for ; Fri, 25 May 2018 20:32:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030288AbeEYUb3 (ORCPT ); Fri, 25 May 2018 16:31:29 -0400 Received: from mail-pl0-f65.google.com ([209.85.160.65]:46411 "EHLO mail-pl0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030261AbeEYUb1 (ORCPT ); Fri, 25 May 2018 16:31:27 -0400 Received: by mail-pl0-f65.google.com with SMTP id 30-v6so3753938pld.13 for ; Fri, 25 May 2018 13:31:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=FC1l+ijrjsDcSjkUjQyPaQTtiFgNIkcY3Riv3V2yIbg=; b=RzI3P8NRmcr7nyUDhCN/wd/Q7pEw+dt6rmVwx7Jkf+MaAv0//o91DWZ6ZljthVFzPO um3Zguu4awhM2WTzg1F+4mDhS2Fw5t/7ygUCCjeqnlQUKILN5zaDvEXrDB3qlzahBTCg RlawDSz61RaVO7ZgdwLf/1mBjJ5dTMZ0MCaJ5RQQMQ0D3fbpS6yHDdtligGKXpCUaOhy rZFX2YYDC9eeQXtQ/uA7K+QIDQRg0LrPT1YWRRkWxbxCEAkJyhO8iOQapA5uFuFJ6c7K rsL1TilOR3F19wU5iSDxOYl9ClqZ9v/WduPtE53JWeu3OohguO0xs0EWz3SjjGCnQ9aV Vudg== X-Gm-Message-State: ALKqPwdeidMhV8pBieRmgtHxk1/7j0V340zFHfmE9aF9A2bmMTLZcd8s Xbd/FhZQxdSFq27zqIITb5VeKw== X-Google-Smtp-Source: AB8JxZoHEZ3M7UHqAR+BwJPuYfHsKKdrUB5bX+RUka+XZD6Kwlq5waTFQTcr+hrsGsOx+mTVFjf/lg== X-Received: by 2002:a17:902:6e08:: with SMTP id u8-v6mr4026368plk.96.1527280286865; Fri, 25 May 2018 13:31:26 -0700 (PDT) Received: from mka.mtv.corp.google.com ([2620:0:1000:1501:8e2d:4727:1211:622]) by smtp.gmail.com with ESMTPSA id p1-v6sm42912360pfp.137.2018.05.25.13.31.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 25 May 2018 13:31:25 -0700 (PDT) From: Matthias Kaehlcke To: MyungJoo Ham Cc: Kyungmin Park , Chanwoo Choi , Arnd Bergmann , Greg Kroah-Hartman , Rob Herring , Mark Rutland , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Norris , Douglas Anderson , Matthias Kaehlcke Subject: [PATCH 08/11] PM / devfreq: Make update_devfreq() public Date: Fri, 25 May 2018 13:30:40 -0700 Message-Id: <20180525203043.249193-9-mka@chromium.org> X-Mailer: git-send-email 2.17.0.921.gf22659ad46-goog In-Reply-To: <20180525203043.249193-1-mka@chromium.org> References: <20180525203043.249193-1-mka@chromium.org> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently update_devfreq() is only visible to devfreq governors outside of devfreq.c. Make it public to allow drivers that adjust devfreq policies to cause a re-evaluation of the frequency after a policy change. Signed-off-by: Matthias Kaehlcke Acked-by: MyungJoo Ham --- drivers/devfreq/governor.h | 3 --- include/linux/devfreq.h | 8 ++++++++ 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/devfreq/governor.h b/drivers/devfreq/governor.h index cfc50a61a90d..608e7549465b 100644 --- a/drivers/devfreq/governor.h +++ b/drivers/devfreq/governor.h @@ -54,9 +54,6 @@ struct devfreq_governor { unsigned int event, void *data); }; -/* Caution: devfreq->lock must be locked before calling update_devfreq */ -extern int update_devfreq(struct devfreq *devfreq); - extern void devfreq_monitor_start(struct devfreq *devfreq); extern void devfreq_monitor_stop(struct devfreq *devfreq); extern void devfreq_monitor_suspend(struct devfreq *devfreq); diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 4a6ed61bbe49..561ab1d5e8d6 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -222,6 +222,14 @@ extern void devm_devfreq_remove_device(struct device *dev, extern int devfreq_suspend_device(struct devfreq *devfreq); extern int devfreq_resume_device(struct devfreq *devfreq); +/** + * update_devfreq() - Reevaluate the device and configure frequency + * @devfreq: the devfreq device + * + * Note: devfreq->lock must be held + */ +extern int update_devfreq(struct devfreq *devfreq); + /* Helper functions for devfreq user device driver with OPP. */ extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, u32 flags);