From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ECF73C43140 for ; Thu, 21 Jun 2018 01:53:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B3F4E20837 for ; Thu, 21 Jun 2018 01:53:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B3F4E20837 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754624AbeFUBxM (ORCPT ); Wed, 20 Jun 2018 21:53:12 -0400 Received: from mail-pg0-f66.google.com ([74.125.83.66]:40070 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754420AbeFUBxE (ORCPT ); Wed, 20 Jun 2018 21:53:04 -0400 Received: by mail-pg0-f66.google.com with SMTP id w8-v6so639124pgp.7 for ; Wed, 20 Jun 2018 18:53:04 -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=6Nsp0g8YXr2r0a/RUnmIzUqht+fwpZClvdZQU3BCvCY=; b=Gx0RX88YCixHx+bFFgFAHWMPOcF/tIOX4kO8nSr+ubFFb/jUI/m+Z50zQqzWoV5akv KMWtn5EiCRMJHzLO1Y/IGHiq3ZM9NZg02pCOyZhk239AwlFCHm+0cTJWGpvFziaDtrrB SLbD2N3Xt79VktuS5iKaKrmJs9rAKlpavB0F0Luaf5+WAaLQNV9vPqRyk+LKWE2ZbzmN cWJejaXgRzTtPytH1DIEb4C51a6WLi5HrJKPWFXGOJ4lKPtzRU4FfiOk9vouJdFGypi3 1FWpX3qsZXB34LOs9Kd5J6EXjA/wdvsdBHvY7YW3s47emxxs2hS/1JnN1/CiewmkMwsC uOQw== X-Gm-Message-State: APt69E1LzcV7mtLOloAkx8xnK/bCXeWt+wDPcH7hN0KuqTgUEaHuKNvS 1naEhurXx2cbI3hUTYwatY51YA== X-Google-Smtp-Source: ADUXVKLUlDpx9rB6bF8Ra/Sp6wLJqRq8lLMW6cIjVHsi/Ysat69kLRcOrU8XN+EmLivnzCcemihvRA== X-Received: by 2002:a62:ca99:: with SMTP id y25-v6mr25075350pfk.187.1529545983551; Wed, 20 Jun 2018 18:53:03 -0700 (PDT) Received: from mka.mtv.corp.google.com ([2620:0:1000:1501:8e2d:4727:1211:622]) by smtp.gmail.com with ESMTPSA id p12-v6sm6585877pfi.175.2018.06.20.18.53.02 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 20 Jun 2018 18:53:02 -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 , Enric Balletbo i Serra , "Rafael J . Wysocki" , Viresh Kumar , Lee Jones , Benson Leung , Olof Johansson , Matthias Kaehlcke Subject: [PATCH v4 07/12] PM / devfreq: export devfreq_class Date: Wed, 20 Jun 2018 18:52:32 -0700 Message-Id: <20180621015237.100100-8-mka@chromium.org> X-Mailer: git-send-email 2.18.0.rc2.346.g013aa6912e-goog In-Reply-To: <20180621015237.100100-1-mka@chromium.org> References: <20180621015237.100100-1-mka@chromium.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Exporting the device class allows other parts of the kernel to enumerate the devfreq devices and receive notification when a devfreq device is added or removed. Signed-off-by: Matthias Kaehlcke Reviewed-by: Brian Norris --- Changes in v4: - added 'Reviewed-by: Brian Norris ' tag Changes in v3: - none Changes in v2: - patch added to series --- drivers/devfreq/devfreq.c | 3 ++- include/linux/devfreq.h | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 4cbaa7ad1972..38b90b64fc6e 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -31,7 +31,8 @@ #define MAX(a,b) ((a > b) ? a : b) #define MIN(a,b) ((a < b) ? a : b) -static struct class *devfreq_class; +struct class *devfreq_class; +EXPORT_SYMBOL_GPL(devfreq_class); /* * devfreq core provides delayed work based load monitoring helper diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index c4f84a769cb5..964e064a951f 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -206,6 +206,8 @@ struct devfreq_freqs { }; #if defined(CONFIG_PM_DEVFREQ) +extern struct class *devfreq_class; + extern struct devfreq *devfreq_add_device(struct device *dev, struct devfreq_dev_profile *profile, const char *governor_name, -- 2.18.0.rc2.346.g013aa6912e-goog