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=-9.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 74D2AC433DF for ; Fri, 29 May 2020 15:22:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 51C76207F9 for ; Fri, 29 May 2020 15:22:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b="WLriwvQV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727025AbgE2PWV (ORCPT ); Fri, 29 May 2020 11:22:21 -0400 Received: from mx0b-001ae601.pphosted.com ([67.231.152.168]:20634 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726907AbgE2PWV (ORCPT ); Fri, 29 May 2020 11:22:21 -0400 Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04TFBqic028326; Fri, 29 May 2020 10:22:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=PODMain02222019; bh=QEYbg2+Ahs1TNWlsutMPnvo9AK2POBWtyD3yCVoZr4M=; b=WLriwvQVmnt6gcRbtuKh3c4ierLOSf/0307Vwp230IRgiycCgvYcWHwGUxQvRgQfLjLS z5olqdf7AJQ+m/MsvpVAPBrZU41gyvQqcdXjHbm8ogfbWFWpBd/vqvZy232jrIwX7Dow dpqHrarBBrmXTUK1PfAkdR6uPpq0BayzFhHuS9cC70ZGs3XJUuZzPvtdvkHz3w4Qz8y4 EHpMNcVLWltE71+e8lD6qJukVooVCBDqlwMzdq8PpHwFo5N3iO7TZquzbwnAYH6K5OBz DyZ7UC6lW2dsamgi/awomyHZUOGH+nffwiXpxqZFuolltmjiSopzEBxzVd06nG8Oiuyw KA== Authentication-Results: ppops.net; spf=fail smtp.mailfrom=ckeepax@opensource.cirrus.com Received: from ediex02.ad.cirrus.com ([87.246.76.36]) by mx0b-001ae601.pphosted.com with ESMTP id 31708q113g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 29 May 2020 10:22:18 -0500 Received: from EDIEX01.ad.cirrus.com (198.61.84.80) by EDIEX02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Fri, 29 May 2020 16:22:17 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.1913.5 via Frontend Transport; Fri, 29 May 2020 16:22:16 +0100 Received: from algalon.ad.cirrus.com (algalon.ad.cirrus.com [198.90.251.122]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id E07E42C8; Fri, 29 May 2020 15:22:16 +0000 (UTC) From: Charles Keepax To: CC: , , Subject: [PATCH] regulator: core: Add regulator bypass trace points Date: Fri, 29 May 2020 16:22:16 +0100 Message-ID: <20200529152216.9671-1-ckeepax@opensource.cirrus.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-SPF-Result: fail X-Proofpoint-SPF-Record: v=spf1 include:spf-001ae601.pphosted.com include:spf.protection.outlook.com ip4:5.172.152.52 -all X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 phishscore=0 adultscore=0 bulkscore=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 mlxscore=0 spamscore=0 mlxlogscore=951 cotscore=-2147483648 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005290122 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add new trace points for the start and end of enabling bypass on a regulator, to allow monitoring of when regulators are moved into bypass and how long that takes. Signed-off-by: Charles Keepax --- drivers/regulator/core.c | 9 +++++++++ include/trace/events/regulator.h | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 941783a14b454..ec04fe8ece475 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -4312,6 +4312,7 @@ EXPORT_SYMBOL_GPL(regulator_set_load); int regulator_allow_bypass(struct regulator *regulator, bool enable) { struct regulator_dev *rdev = regulator->rdev; + const char *name = rdev_get_name(rdev); int ret = 0; if (!rdev->desc->ops->set_bypass) @@ -4326,18 +4327,26 @@ int regulator_allow_bypass(struct regulator *regulator, bool enable) rdev->bypass_count++; if (rdev->bypass_count == rdev->open_count) { + trace_regulator_bypass_enable(name); + ret = rdev->desc->ops->set_bypass(rdev, enable); if (ret != 0) rdev->bypass_count--; + else + trace_regulator_bypass_enable_complete(name); } } else if (!enable && regulator->bypass) { rdev->bypass_count--; if (rdev->bypass_count != rdev->open_count) { + trace_regulator_bypass_disable(name); + ret = rdev->desc->ops->set_bypass(rdev, enable); if (ret != 0) rdev->bypass_count++; + else + trace_regulator_bypass_disable_complete(name); } } diff --git a/include/trace/events/regulator.h b/include/trace/events/regulator.h index b70583c32c08c..72b3ba93b0a5a 100644 --- a/include/trace/events/regulator.h +++ b/include/trace/events/regulator.h @@ -70,6 +70,38 @@ DEFINE_EVENT(regulator_basic, regulator_disable_complete, ); +DEFINE_EVENT(regulator_basic, regulator_bypass_enable, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + +DEFINE_EVENT(regulator_basic, regulator_bypass_enable_complete, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + +DEFINE_EVENT(regulator_basic, regulator_bypass_disable, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + +DEFINE_EVENT(regulator_basic, regulator_bypass_disable_complete, + + TP_PROTO(const char *name), + + TP_ARGS(name) + +); + /* * Events that take a range of numerical values, mostly for voltages * and so on. -- 2.11.0