From patchwork Sun Sep 12 20:08:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12487321 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 5278EC433EF for ; Sun, 12 Sep 2021 20:11:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4302660E8B for ; Sun, 12 Sep 2021 20:11:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237241AbhILUMu (ORCPT ); Sun, 12 Sep 2021 16:12:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236841AbhILULu (ORCPT ); Sun, 12 Sep 2021 16:11:50 -0400 Received: from mail-wm1-x336.google.com (mail-wm1-x336.google.com [IPv6:2a00:1450:4864:20::336]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB038C0613E0; Sun, 12 Sep 2021 13:10:13 -0700 (PDT) Received: by mail-wm1-x336.google.com with SMTP id y132so5131612wmc.1; Sun, 12 Sep 2021 13:10:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=OIcT7jD3PqmkaPXwCgv6FGE++Qsz6I3+CRXDdvNGkZc=; b=Wmd75NZPb1IhiDgWnroEutDtueaTyloKYRnnVXjiu+UR+cEuIfSWgzziEtkIqYUOQa PHKYqtjZSpj+oBPb57ZMCI73TJod2zdX9W2GjrG6+XqJ4jXVLephBCjvi1bY5Nag+JEp Kwtg9HWtXzMxZBkebrNKjnvp6oqDOa4I4MlMxVZP6SLLzH0fubjLsN5mzCS9BHVu/fkf OiMCsBkjgl0hnDKufuLCDxQdqM9cfMGA2M0TfMU20IIHZBUR2Xc8/ALBlUW0uw9jXo9U IJz+bMl5N7VjC9nVE/BWbxCIr2jagJ9dyhXcq+kDT/kQIihF4+WIftmPG5lzt+vvQpSe 5arQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OIcT7jD3PqmkaPXwCgv6FGE++Qsz6I3+CRXDdvNGkZc=; b=jzudE8jIwC5FZwzxS6HLeS+2r5+vxbEN/EDjb0W9n5Tsmt2JsVUikTg3SJaMzU+7Eb Pbh4QjjrZ+XBap9JIexyaCEgulkdiWHD1rO2VzB/0tK+uSnX2MkDksCaiHPiYrYpVngX ne8bSNpBI5WbPa+yUmXU8MTejWa2NgZaRzUGL6W1EESs7DbSJvkc7gFW3BFIrgjs1tLv 9vItg4WdSBrWYcbGPkfWCaev/DOTLQMqn5O2Ziz0Y1NhkBjy8PQ/+B7210okI9fNFgct O/Lbrn8q2u44pZUcucUyYlQR5P6hKmwYcI7kS5L4EMFD7QtFruRVv/4SuDLmSPPl/n62 bWDw== X-Gm-Message-State: AOAM532fsLe17x+DtyBVrcObN8Rd28D6cLM7SNdzVLGyDheQ0RQwnxtC UnE5JQttkjnq29cAIL10Ucg= X-Google-Smtp-Source: ABdhPJwwsXKHBpTJzGDUleBhSoFPUo3kLmX7VkFY/e6xJ09s7+BQ7I7eHEjcFQmuL0mxHeIpW+WdLQ== X-Received: by 2002:a7b:cb89:: with SMTP id m9mr8023526wmi.123.1631477412442; Sun, 12 Sep 2021 13:10:12 -0700 (PDT) Received: from localhost.localdomain (46-138-83-36.dynamic.spd-mgts.ru. [46.138.83.36]) by smtp.gmail.com with ESMTPSA id v10sm5463476wrg.15.2021.09.12.13.10.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Sep 2021 13:10:12 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Ulf Hansson , Viresh Kumar , Stephen Boyd , Peter De Schrijver , Mikko Perttunen , Peter Chen , Mark Brown , Lee Jones , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Nishanth Menon , Vignesh Raghavendra , Richard Weinberger , Miquel Raynal , Lucas Stach , Stefan Agner , Adrian Hunter , Mauro Carvalho Chehab , Rob Herring , Michael Turquette Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-staging@lists.linux.dev, linux-spi@vger.kernel.org, linux-pwm@vger.kernel.org, linux-mtd@lists.infradead.org, linux-mmc@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH v11 16/34] usb: chipidea: tegra: Add runtime PM and OPP support Date: Sun, 12 Sep 2021 23:08:14 +0300 Message-Id: <20210912200832.12312-17-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210912200832.12312-1-digetx@gmail.com> References: <20210912200832.12312-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org The Tegra USB controller belongs to the core power domain and we're going to enable GENPD support for the core domain. Now USB controller must be resumed using runtime PM API in order to initialize the USB power state. We already support runtime PM for the CI device, but CI's PM is separated from the RPM managed by tegra-usb driver. Add runtime PM and OPP support to the driver. Signed-off-by: Dmitry Osipenko --- drivers/usb/chipidea/ci_hdrc_tegra.c | 53 ++++++++++++++++++++++++---- 1 file changed, 46 insertions(+), 7 deletions(-) diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c index 60361141ac04..3142ef7ebe42 100644 --- a/drivers/usb/chipidea/ci_hdrc_tegra.c +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -15,6 +16,8 @@ #include #include +#include + #include "../host/ehci.h" #include "ci.h" @@ -278,6 +281,8 @@ static int tegra_usb_probe(struct platform_device *pdev) if (!usb) return -ENOMEM; + platform_set_drvdata(pdev, usb); + soc = of_device_get_match_data(&pdev->dev); if (!soc) { dev_err(&pdev->dev, "failed to match OF data\n"); @@ -296,11 +301,17 @@ static int tegra_usb_probe(struct platform_device *pdev) return err; } - err = clk_prepare_enable(usb->clk); - if (err < 0) { - dev_err(&pdev->dev, "failed to enable clock: %d\n", err); + err = devm_pm_runtime_enable(&pdev->dev); + if (err) + return err; + + err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev); + if (err) + return err; + + err = pm_runtime_resume_and_get(&pdev->dev); + if (err) return err; - } if (device_property_present(&pdev->dev, "nvidia,needs-double-reset")) usb->needs_double_reset = true; @@ -320,8 +331,6 @@ static int tegra_usb_probe(struct platform_device *pdev) if (err) goto fail_power_off; - platform_set_drvdata(pdev, usb); - /* setup and register ChipIdea HDRC device */ usb->soc = soc; usb->data.name = "tegra-usb"; @@ -350,7 +359,8 @@ static int tegra_usb_probe(struct platform_device *pdev) phy_shutdown: usb_phy_shutdown(usb->phy); fail_power_off: - clk_disable_unprepare(usb->clk); + pm_runtime_put(&pdev->dev); + return err; } @@ -360,15 +370,44 @@ static int tegra_usb_remove(struct platform_device *pdev) ci_hdrc_remove_device(usb->dev); usb_phy_shutdown(usb->phy); + pm_runtime_put(&pdev->dev); + + return 0; +} + +static int __maybe_unused tegra_usb_runtime_resume(struct device *dev) +{ + struct tegra_usb *usb = dev_get_drvdata(dev); + int err; + + err = clk_prepare_enable(usb->clk); + if (err < 0) { + dev_err(dev, "failed to enable clock: %d\n", err); + return err; + } + + return 0; +} + +static int __maybe_unused tegra_usb_runtime_suspend(struct device *dev) +{ + struct tegra_usb *usb = dev_get_drvdata(dev); + clk_disable_unprepare(usb->clk); return 0; } +static const struct dev_pm_ops tegra_usb_pm = { + SET_RUNTIME_PM_OPS(tegra_usb_runtime_suspend, tegra_usb_runtime_resume, + NULL) +}; + static struct platform_driver tegra_usb_driver = { .driver = { .name = "tegra-usb", .of_match_table = tegra_usb_of_match, + .pm = &tegra_usb_pm, }, .probe = tegra_usb_probe, .remove = tegra_usb_remove,