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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 DD88EC38A2A for ; Fri, 8 May 2020 15:05:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B349621655 for ; Fri, 8 May 2020 15:05:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="RAHWnDFa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728095AbgEHPFr (ORCPT ); Fri, 8 May 2020 11:05:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727772AbgEHPFq (ORCPT ); Fri, 8 May 2020 11:05:46 -0400 Received: from mail-lj1-x241.google.com (mail-lj1-x241.google.com [IPv6:2a00:1450:4864:20::241]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60283C061A0C; Fri, 8 May 2020 08:05:46 -0700 (PDT) Received: by mail-lj1-x241.google.com with SMTP id u6so2016398ljl.6; Fri, 08 May 2020 08:05:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=EWYqx4RC2T1AU2xzG4+mt4v88KV8ydAUy/Ny41WiqtY=; b=RAHWnDFaU1VGGXWup+RQ6CccDu6vVM9eSgQax07UxQl5DUSx/Iqs5bQ+t+/7t8YKzu qeUgZQRA7hEk+6/6BMaWBc1MEuGUhbTgBhFWlN+apWtn5N51IQpf69AJIvyv5XLkawVm wX4UDJeT2k2p6D2l0msZ6pmtay//2J9xSNBvGQG2rKvDi7rtbkFwSLSEEgwtV/6tfS6M 6tsXGQzz+dcmYRNaN2qUxOOQ7ve1F9FjvV1+kLfjWSN0pkSbgVMbGyFDzXWe7YnV3+KC bq2/IkUhIEXlXdq9hb6Z5/jhokD4eSLP2jiEYBCDBbWs4C+CV+GInvFiDvC3rliIp+A5 3DYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=EWYqx4RC2T1AU2xzG4+mt4v88KV8ydAUy/Ny41WiqtY=; b=Tg0pQiKiPdsHrYh0N9jTweVKJq2+252Y0ykf+ta7jeRH/Y/IWLI2FInLLwhomenNh+ mNHWubMjTvBLmNd+3uopPwjBbEGLuxNwRT8yGAd5jGu2dnnBRxuvT033TSzuiQ3naAJd IxLS/yK+3Io/hFKNjWcvtudNGULrIJ+rX6CncgvSMjMO0EjdDLzBCJxjlV2/Qg5Cp6Ro CHlj87FcReW8xZDARQ5nDV5NnfqB/o0Vzg5FJ4VCDzSAbrrzGaiqJ4AOy0Tby2cB25Qx 9MQ0MlmnEcBH75H35TjUmVOP/LohaLY1NmdvLw+odzp94fLxJ18bwILIW9W/mWzVPIHn 5OMw== X-Gm-Message-State: AOAM531SxGwXU1QrcoViJh7B6io1lw2PHK2MIoJE+dqqB8WaQc3X4Lpp yZyTGsFEK4xNTYjZI071ZOzvLeib X-Google-Smtp-Source: ABdhPJypUIl3qL8pvJR5e9s9Lg+SRV6e2F4v/perCgCLtDI5zz2fNRVuNqoZad1L1mj982kw20n5qw== X-Received: by 2002:a2e:b4c2:: with SMTP id r2mr2092843ljm.143.1588950344637; Fri, 08 May 2020 08:05:44 -0700 (PDT) Received: from [192.168.2.145] (ppp91-78-208-152.pppoe.mtu-net.ru. [91.78.208.152]) by smtp.googlemail.com with ESMTPSA id r20sm1371844ljj.44.2020.05.08.08.05.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 08 May 2020 08:05:43 -0700 (PDT) Subject: Re: [PATCH 2/5] i2c: tegra: Restore pinmux on system resume To: Thierry Reding , Wolfram Sang Cc: Jon Hunter , linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org References: <20200506193358.2807244-1-thierry.reding@gmail.com> <20200506193358.2807244-3-thierry.reding@gmail.com> From: Dmitry Osipenko Message-ID: <2df64c60-cbb4-8d38-121f-99a3c3877142@gmail.com> Date: Fri, 8 May 2020 18:05:43 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200506193358.2807244-3-thierry.reding@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org 06.05.2020 22:33, Thierry Reding пишет: ... > static int __maybe_unused tegra_i2c_suspend(struct device *dev) > { > struct tegra_i2c_dev *i2c_dev = dev_get_drvdata(dev); > + int err = 0; > > i2c_mark_adapter_suspended(&i2c_dev->adapter); > > - return 0; > + if (!pm_runtime_status_suspended(dev)) > + err = tegra_i2c_runtime_suspend(dev); Could you please explain what determines whether I2C is RPM-suspended or resumed during of the system's suspension?