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can: m_can: use struct m_can_classdev as drvdata
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 With upcoming conversion of the tcan4x5x driver to pm_runtime this assumption is no longer valid.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. Link: https://lore.kernel.org/r/20201212175518.139651-8-mkl@pengutronix.de Reviewed-by: Sean Nyekjaer <sean@geanix.com> Reviewed-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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@ -1859,8 +1859,8 @@ EXPORT_SYMBOL_GPL(m_can_class_unregister);
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int m_can_class_suspend(struct device *dev)
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{
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struct net_device *ndev = dev_get_drvdata(dev);
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struct m_can_classdev *cdev = netdev_priv(ndev);
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struct m_can_classdev *cdev = dev_get_drvdata(dev);
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struct net_device *ndev = cdev->net;
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if (netif_running(ndev)) {
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netif_stop_queue(ndev);
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@ -1879,8 +1879,8 @@ EXPORT_SYMBOL_GPL(m_can_class_suspend);
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int m_can_class_resume(struct device *dev)
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{
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struct net_device *ndev = dev_get_drvdata(dev);
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struct m_can_classdev *cdev = netdev_priv(ndev);
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struct m_can_classdev *cdev = dev_get_drvdata(dev);
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struct net_device *ndev = cdev->net;
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pinctrl_pm_select_default_state(dev);
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@ -115,7 +115,7 @@ static int m_can_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
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mcan_class->can.clock.freq = id->driver_data;
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mcan_class->ops = &m_can_pci_ops;
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pci_set_drvdata(pci, mcan_class->net);
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pci_set_drvdata(pci, mcan_class);
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ret = m_can_class_register(mcan_class);
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if (ret)
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@ -138,8 +138,7 @@ err:
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static void m_can_pci_remove(struct pci_dev *pci)
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{
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struct net_device *dev = pci_get_drvdata(pci);
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struct m_can_classdev *mcan_class = netdev_priv(dev);
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struct m_can_classdev *mcan_class = pci_get_drvdata(pci);
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struct m_can_pci_priv *priv = cdev_to_priv(mcan_class);
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pm_runtime_forbid(&pci->dev);
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@ -113,7 +113,7 @@ static int m_can_plat_probe(struct platform_device *pdev)
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mcan_class->is_peripheral = false;
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platform_set_drvdata(pdev, mcan_class->net);
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platform_set_drvdata(pdev, mcan_class);
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m_can_init_ram(mcan_class);
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@ -143,8 +143,8 @@ static __maybe_unused int m_can_resume(struct device *dev)
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static int m_can_plat_remove(struct platform_device *pdev)
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{
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struct net_device *dev = platform_get_drvdata(pdev);
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struct m_can_classdev *mcan_class = netdev_priv(dev);
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struct m_can_plat_priv *priv = platform_get_drvdata(pdev);
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struct m_can_classdev *mcan_class = &priv->cdev;
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m_can_class_unregister(mcan_class);
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@ -155,8 +155,8 @@ static int m_can_plat_remove(struct platform_device *pdev)
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static int __maybe_unused m_can_runtime_suspend(struct device *dev)
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{
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struct net_device *ndev = dev_get_drvdata(dev);
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struct m_can_classdev *mcan_class = netdev_priv(ndev);
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struct m_can_plat_priv *priv = dev_get_drvdata(dev);
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struct m_can_classdev *mcan_class = &priv->cdev;
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clk_disable_unprepare(mcan_class->cclk);
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clk_disable_unprepare(mcan_class->hclk);
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@ -166,8 +166,8 @@ static int __maybe_unused m_can_runtime_suspend(struct device *dev)
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static int __maybe_unused m_can_runtime_resume(struct device *dev)
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{
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struct net_device *ndev = dev_get_drvdata(dev);
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struct m_can_classdev *mcan_class = netdev_priv(ndev);
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struct m_can_plat_priv *priv = dev_get_drvdata(dev);
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struct m_can_classdev *mcan_class = &priv->cdev;
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int err;
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err = clk_prepare_enable(mcan_class->hclk);
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