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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,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 29677C19425 for ; Sat, 12 Dec 2020 17:57:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0614F2226A for ; Sat, 12 Dec 2020 17:57:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439601AbgLLR5A (ORCPT ); Sat, 12 Dec 2020 12:57:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2439618AbgLLR4u (ORCPT ); Sat, 12 Dec 2020 12:56:50 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6DACC0617B0 for ; Sat, 12 Dec 2020 09:55:29 -0800 (PST) Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=bjornoya.blackshift.org) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ko97A-00010p-7z for linux-can@vger.kernel.org; Sat, 12 Dec 2020 18:55:28 +0100 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id 7365C5ABDDC for ; Sat, 12 Dec 2020 17:55:24 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id 8317B5ABDAE; Sat, 12 Dec 2020 17:55:20 +0000 (UTC) Received: from blackshift.org (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id 5763c96e; Sat, 12 Dec 2020 17:55:19 +0000 (UTC) From: Marc Kleine-Budde To: linux-can@vger.kernel.org Cc: kernel@pengutronix.de, Dan Murphy , Sean Nyekjaer , Sriram Dash , Marc Kleine-Budde Subject: [can-next-rfc 7/7] can: m_can: use struct m_can_classdev as drvdata Date: Sat, 12 Dec 2020 18:55:18 +0100 Message-Id: <20201212175518.139651-8-mkl@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201212175518.139651-1-mkl@pengutronix.de> References: <20201212175518.139651-1-mkl@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-can@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org The m_can driver's suspend and resume functions (m_can_class_suspend() and m_can_class_resume()) make use of dev_get_drvdata() and assume that the drvdata is a pointer to the struct net_device. With upcoming conversion of the tcan4x5x driver to pm_runtime this assumption is no longer valid. As the suspend and resume functions actually need a struct m_can_classdev pointer, change the m_can_platform and the m_can_pci driver to hold a pointer to struct m_can_classdev instead, as the tcan4x5x driver already does. Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can.c | 8 ++++---- drivers/net/can/m_can/m_can_pci.c | 5 ++--- drivers/net/can/m_can/m_can_platform.c | 14 +++++++------- 3 files changed, 13 insertions(+), 14 deletions(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 46b23fd33f4a..ebf52f1aca10 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1859,8 +1859,8 @@ EXPORT_SYMBOL_GPL(m_can_class_unregister); int m_can_class_suspend(struct device *dev) { - struct net_device *ndev = dev_get_drvdata(dev); - struct m_can_classdev *cdev = netdev_priv(ndev); + struct m_can_classdev *cdev = dev_get_drvdata(dev); + struct net_device *ndev = cdev->net; if (netif_running(ndev)) { netif_stop_queue(ndev); @@ -1879,8 +1879,8 @@ EXPORT_SYMBOL_GPL(m_can_class_suspend); int m_can_class_resume(struct device *dev) { - struct net_device *ndev = dev_get_drvdata(dev); - struct m_can_classdev *cdev = netdev_priv(ndev); + struct m_can_classdev *cdev = dev_get_drvdata(dev); + struct net_device *ndev = cdev->net; pinctrl_pm_select_default_state(dev); diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index ebfbef25e3f9..128808605c3f 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -115,7 +115,7 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) mcan_class->can.clock.freq = id->driver_data; mcan_class->ops = &m_can_pci_ops; - pci_set_drvdata(pci, mcan_class->net); + pci_set_drvdata(pci, mcan_class); ret = m_can_class_register(mcan_class); if (ret) @@ -138,8 +138,7 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) static void m_can_pci_remove(struct pci_dev *pci) { - struct net_device *dev = pci_get_drvdata(pci); - struct m_can_classdev *mcan_class = netdev_priv(dev); + struct m_can_classdev *mcan_class = pci_get_drvdata(pci); struct m_can_pci_priv *priv = cdev_to_priv(mcan_class); pm_runtime_forbid(&pci->dev); diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c index 5758d25e42c8..599de0e08cd7 100644 --- a/drivers/net/can/m_can/m_can_platform.c +++ b/drivers/net/can/m_can/m_can_platform.c @@ -113,7 +113,7 @@ static int m_can_plat_probe(struct platform_device *pdev) mcan_class->is_peripheral = false; - platform_set_drvdata(pdev, mcan_class->net); + platform_set_drvdata(pdev, mcan_class); m_can_init_ram(mcan_class); @@ -143,8 +143,8 @@ static __maybe_unused int m_can_resume(struct device *dev) static int m_can_plat_remove(struct platform_device *pdev) { - struct net_device *dev = platform_get_drvdata(pdev); - struct m_can_classdev *mcan_class = netdev_priv(dev); + struct m_can_plat_priv *priv = platform_get_drvdata(pdev); + struct m_can_classdev *mcan_class = &priv->cdev; m_can_class_unregister(mcan_class); @@ -155,8 +155,8 @@ static int m_can_plat_remove(struct platform_device *pdev) static int __maybe_unused m_can_runtime_suspend(struct device *dev) { - struct net_device *ndev = dev_get_drvdata(dev); - struct m_can_classdev *mcan_class = netdev_priv(ndev); + struct m_can_plat_priv *priv = dev_get_drvdata(dev); + struct m_can_classdev *mcan_class = &priv->cdev; clk_disable_unprepare(mcan_class->cclk); clk_disable_unprepare(mcan_class->hclk); @@ -166,8 +166,8 @@ static int __maybe_unused m_can_runtime_suspend(struct device *dev) static int __maybe_unused m_can_runtime_resume(struct device *dev) { - struct net_device *ndev = dev_get_drvdata(dev); - struct m_can_classdev *mcan_class = netdev_priv(ndev); + struct m_can_plat_priv *priv = dev_get_drvdata(dev); + struct m_can_classdev *mcan_class = &priv->cdev; int err; err = clk_prepare_enable(mcan_class->hclk); -- 2.29.2