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=-12.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 0F0BAC4338F for ; Wed, 25 Aug 2021 03:40:10 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C681461139 for ; Wed, 25 Aug 2021 03:40:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C681461139 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=hU/eBcoKyleD1L2L+80MhU1iP8cuh64jwmKJcigp2Ks=; b=zBa4LkIhRYGJ9B 2wmp4ZSzk1PIDxVuzIjNQzEF3KuPMsdHIZ0QzaDkRxPVXsnDM9aLkkNflnEgrhNwKGCfhBkQblx2b Zd5Uj54rMlBjYKu45isqygt/4ChSsMj1s+8CdKkR4X4azxLJkD2/QFk2r168/bsv8/Udg3E7Ayj43 H4fXsLoAgEZBrEHn0dm/3YHLAIxeOXoxM39L22m1TL/0uNDWIxnik9EO0m6r3tKVKnKCiSUaIKSN9 p0G5gxk3lpkHraruPGW7t7U3+NsQEeWlOAs/Fm4kivIams9cmAkMyKx1YC7SflBOzpkkAYnZ/qvmA 5re8pJ889KiiIDJRDtNA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mIjjG-005MfX-MX; Wed, 25 Aug 2021 03:37:30 +0000 Received: from mail-pf1-x42f.google.com ([2607:f8b0:4864:20::42f]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mIjjA-005Mdf-9a for linux-arm-kernel@lists.infradead.org; Wed, 25 Aug 2021 03:37:28 +0000 Received: by mail-pf1-x42f.google.com with SMTP id x16so20115745pfh.2 for ; Tue, 24 Aug 2021 20:37:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=rD0o67j/laHpe4aDVsl8MDb/cWf8HZLes0zv9r5sgOQ=; b=C0XXUfq05Vk2o6FVLtiGfBsmlwFanOstvcjgB+89t26LIUhwwgGZVVJuecHjz62T4J gQqxdpixoFdWbL3Mpmwv3/oN3UIUKL6hZv4MChJV2tsm+pwRZ/p+tWMsZ2tkTlvge6Px qWA7mZjE4xu6xEhNqf4DBQzWBbuPrPLFluJ7A= 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:mime-version :content-transfer-encoding; bh=rD0o67j/laHpe4aDVsl8MDb/cWf8HZLes0zv9r5sgOQ=; b=lCZp517ZDGWMtz3RFgRfLfE79dXHh1eFH/Gt+iNo5DcBBI7YQQoBKTWByae6cLHDh/ xQzWl7PXAJExXJmYfj+O5FU2tjqCEsPYSLBeBP2TrhjF/DHiFa6u2Jnyp/sQpBXyNHnL GNWW/+hxSe8DblbSXcBXVGlVggoqeRY774DI570K1ZV9Jl4qDm8QSBWRIpphLmx1nZWl oTOT1PbpUsFKNbqD3DtOC9rErW8bC7zexIxO4z1OD9uyPcHWjPV7FQCzo9Rccm1BvRZG EE8aBppP4xIuLlJPjdO5upk4hP08zc/vaR6Ek2aoBdAO8b/HLs5HWw+2xS8gxzOenB8w Dkuw== X-Gm-Message-State: AOAM533j15FWmeh5FTVjCqYt+m66j54NziZUDR4lOrkTlknh5oopbB+y iG2ky+UkIqbLSkylkPyP9Ko0IA== X-Google-Smtp-Source: ABdhPJzwbcWBlXI82NOEE2KsqW6Q82aJPm9zRsXnknAE16aMI/brVUvUZFOAzmWHosV/cOUzj/Um4g== X-Received: by 2002:a63:87c3:: with SMTP id i186mr5700076pge.242.1629862641871; Tue, 24 Aug 2021 20:37:21 -0700 (PDT) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:629f:4b05:2c88:776d]) by smtp.gmail.com with ESMTPSA id l10sm3902149pgn.22.2021.08.24.20.37.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Aug 2021 20:37:21 -0700 (PDT) From: Chen-Yu Tsai To: Mark Brown , Liam Girdwood Cc: Chen-Yu Tsai , Brian Norris , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 0/2] regulator: vctrl: Avoid lockdep warning in enable/disable ops Date: Wed, 25 Aug 2021 11:37:02 +0800 Message-Id: <20210825033704.3307263-1-wenst@chromium.org> X-Mailer: git-send-email 2.33.0.rc2.250.ged5fa647cd-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210824_203724_376688_7FF6A106 X-CRM114-Status: GOOD ( 10.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, Here are a couple fixes for vctrl-regulator. This driver is only used RK3399-based Chromebooks. Patch one fixes a misuse of the regulator API, which was found while tracing the code to fix the lockdep warning. Patch two fixes a lockdep warning and actual (not easy to reproduce) deadlock. Please have a look. The are no dependencies between the two patches. Additionally, I believe it would make sense to implement the voltage stepping feature for all regulators in the core. Then we could move away from vctrl-regulator. Right now it is only done for coupled regulators. Regards ChenYu Chen-Yu Tsai (2): regulator: vctrl: Use locked regulator_get_voltage in probe path regulator: vctrl: Avoid lockdep warning in enable/disable ops drivers/regulator/vctrl-regulator.c | 73 +++++++++++++++++------------ 1 file changed, 43 insertions(+), 30 deletions(-) -- 2.33.0.rc2.250.ged5fa647cd-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel