From c19d14d6d0120e73418294e6a30db0566e5daf02 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 13 Jun 2013 11:24:13 -0600 Subject: [PATCH] USB: EHCI: tegra: make use of ehci->priv Rather than allocating struct tegra_ehci_hcd separately, use struct ehci_hcd's priv field instead. Signed-off-by: Stephen Warren Acked-by: Alan Stern Tested-by: Thierry Reding Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-tegra.c | 70 +++++++++++++++++------------------ 1 file changed, 35 insertions(+), 35 deletions(-) diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 338c8a56118d..8dac5e41a741 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -56,7 +56,6 @@ static int (*orig_hub_control)(struct usb_hcd *hcd, char *buf, u16 wLength); struct tegra_ehci_hcd { - struct ehci_hcd *ehci; struct tegra_usb_phy *phy; struct clk *clk; struct usb_phy *transceiver; @@ -139,8 +138,8 @@ static int tegra_ehci_hub_control( u16 wLength ) { - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + struct tegra_ehci_hcd *tegra = (struct tegra_ehci_hcd *)ehci->priv; u32 __iomem *status_reg; u32 temp; unsigned long flags; @@ -354,6 +353,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) { struct resource *res; struct usb_hcd *hcd; + struct ehci_hcd *ehci; struct tegra_ehci_hcd *tegra; struct tegra_ehci_platform_data *pdata; int err = 0; @@ -378,20 +378,29 @@ static int tegra_ehci_probe(struct platform_device *pdev) setup_vbus_gpio(pdev, pdata); - tegra = devm_kzalloc(&pdev->dev, sizeof(struct tegra_ehci_hcd), - GFP_KERNEL); - if (!tegra) - return -ENOMEM; + hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev, + dev_name(&pdev->dev)); + if (!hcd) { + dev_err(&pdev->dev, "Unable to create HCD\n"); + err = -ENOMEM; + goto cleanup_vbus_gpio; + } + platform_set_drvdata(pdev, hcd); + ehci = hcd_to_ehci(hcd); + tegra = (struct tegra_ehci_hcd *)ehci->priv; + + hcd->has_tt = 1; tegra->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(tegra->clk)) { dev_err(&pdev->dev, "Can't get ehci clock\n"); - return PTR_ERR(tegra->clk); + err = PTR_ERR(tegra->clk); + goto cleanup_hcd_create; } err = clk_prepare_enable(tegra->clk); if (err) - return err; + goto cleanup_clk_get; tegra_periph_reset_assert(tegra->clk); udelay(1); @@ -400,35 +409,24 @@ static int tegra_ehci_probe(struct platform_device *pdev) np_phy = of_parse_phandle(pdev->dev.of_node, "nvidia,phy", 0); if (!np_phy) { err = -ENODEV; - goto cleanup_clk; + goto cleanup_clk_en; } u_phy = tegra_usb_get_phy(np_phy); if (IS_ERR(u_phy)) { err = PTR_ERR(u_phy); - goto cleanup_clk; + goto cleanup_clk_en; } + hcd->phy = u_phy; tegra->needs_double_reset = of_property_read_bool(pdev->dev.of_node, "nvidia,needs-double-reset"); - hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev, - dev_name(&pdev->dev)); - if (!hcd) { - dev_err(&pdev->dev, "Unable to create HCD\n"); - err = -ENOMEM; - goto cleanup_clk; - } - tegra->ehci = hcd_to_ehci(hcd); - - hcd->has_tt = 1; - hcd->phy = u_phy; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "Failed to get I/O memory\n"); err = -ENXIO; - goto cleanup_hcd_create; + goto cleanup_clk_en; } hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); @@ -436,14 +434,14 @@ static int tegra_ehci_probe(struct platform_device *pdev) if (!hcd->regs) { dev_err(&pdev->dev, "Failed to remap I/O memory\n"); err = -ENOMEM; - goto cleanup_hcd_create; + goto cleanup_clk_en; } - tegra->ehci->caps = hcd->regs + 0x100; + ehci->caps = hcd->regs + 0x100; err = usb_phy_init(hcd->phy); if (err) { dev_err(&pdev->dev, "Failed to initialize phy\n"); - goto cleanup_hcd_create; + goto cleanup_clk_en; } u_phy->otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg), @@ -477,8 +475,6 @@ static int tegra_ehci_probe(struct platform_device *pdev) tegra->transceiver = ERR_PTR(-ENODEV); } - platform_set_drvdata(pdev, tegra); - err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) { dev_err(&pdev->dev, "Failed to add USB HCD\n"); @@ -492,17 +488,22 @@ cleanup_phy: otg_set_host(tegra->transceiver->otg, NULL); usb_phy_shutdown(hcd->phy); +cleanup_clk_en: + clk_disable_unprepare(tegra->clk); +cleanup_clk_get: + clk_put(tegra->clk); cleanup_hcd_create: usb_put_hcd(hcd); -cleanup_clk: - clk_disable_unprepare(tegra->clk); +cleanup_vbus_gpio: + /* FIXME: Undo setup_vbus_gpio() here */ return err; } static int tegra_ehci_remove(struct platform_device *pdev) { - struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); - struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct tegra_ehci_hcd *tegra = + (struct tegra_ehci_hcd *)hcd_to_ehci(hcd)->priv; if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, NULL); @@ -518,8 +519,7 @@ static int tegra_ehci_remove(struct platform_device *pdev) static void tegra_ehci_hcd_shutdown(struct platform_device *pdev) { - struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); - struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); + struct usb_hcd *hcd = platform_get_drvdata(pdev); if (hcd->driver->shutdown) hcd->driver->shutdown(hcd); -- 2.39.5