diff options
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/usb/host/Makefile | 5 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-dbg.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 168 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 8 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-platform.c | 73 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 12 | ||||
| -rw-r--r-- | drivers/usb/host/ehci.h | 3 | ||||
| -rw-r--r-- | drivers/usb/host/fsl-mph-dr-of.c | 8 | ||||
| -rw-r--r-- | drivers/usb/host/fusbh200-hcd.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/isp116x-hcd.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-dbg.c | 6 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-hcd.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-platform.c | 69 | ||||
| -rw-r--r-- | drivers/usb/host/ohci-q.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/ssb-hcd.c | 15 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-hub.c | 65 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 17 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 43 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 7 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.c | 44 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 19 |
23 files changed, 289 insertions, 297 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 197a6a3e613b..8afc3c1efdab 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -137,7 +137,7 @@ config XPS_USB_HCD_XILINX devices only. config USB_EHCI_FSL - bool "Support for Freescale PPC on-chip EHCI USB controller" + tristate "Support for Freescale PPC on-chip EHCI USB controller" depends on FSL_SOC select USB_EHCI_ROOT_HUB_TT select USB_FSL_MPH_DR_OF if OF @@ -295,7 +295,7 @@ config USB_OCTEON_EHCI bool "Octeon on-chip EHCI support (DEPRECATED)" depends on CAVIUM_OCTEON_SOC default n - select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN select USB_EHCI_HCD_PLATFORM help This option is deprecated now and the driver was removed, use @@ -568,7 +568,7 @@ config USB_OCTEON_OHCI bool "Octeon on-chip OHCI support (DEPRECATED)" depends on CAVIUM_OCTEON_SOC default USB_OCTEON_EHCI - select USB_OHCI_BIG_ENDIAN_MMIO + select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN select USB_OHCI_LITTLE_ENDIAN select USB_OHCI_HCD_PLATFORM help diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 65b0b6a58599..754efaa8ccf8 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -24,7 +24,9 @@ endif obj-$(CONFIG_USB_WHCI_HCD) += whci/ -obj-$(CONFIG_PCI) += pci-quirks.o +ifneq ($(CONFIG_USB), ) + obj-$(CONFIG_PCI) += pci-quirks.o +endif obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o obj-$(CONFIG_USB_XHCI_PLATFORM) += xhci-plat-hcd.o @@ -70,6 +72,7 @@ obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o obj-$(CONFIG_USB_FSL_MPH_DR_OF) += fsl-mph-dr-of.o +obj-$(CONFIG_USB_EHCI_FSL) += ehci-fsl.o obj-$(CONFIG_USB_HCD_BCMA) += bcma-hcd.o obj-$(CONFIG_USB_HCD_SSB) += ssb-hcd.o obj-$(CONFIG_USB_FUSBH200_HCD) += fusbh200-hcd.o diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 524cbf26d992..b26b96e25a13 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -628,7 +628,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) unsigned i; __hc32 tag; - if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC))) + seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC); + if (!seen) return 0; seen_count = 0; diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index ab4eee3df97a..5352e74b92e2 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -1,6 +1,6 @@ /* * Copyright 2005-2009 MontaVista Software, Inc. - * Copyright 2008,2012 Freescale Semiconductor, Inc. + * Copyright 2008,2012,2015 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -24,29 +24,38 @@ */ #include <linux/kernel.h> +#include <linux/module.h> #include <linux/types.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/err.h> +#include <linux/usb.h> +#include <linux/usb/ehci_def.h> +#include <linux/usb/hcd.h> +#include <linux/usb/otg.h> #include <linux/platform_device.h> #include <linux/fsl_devices.h> +#include "ehci.h" #include "ehci-fsl.h" +#define DRIVER_DESC "Freescale EHCI Host controller driver" +#define DRV_NAME "ehci-fsl" + +static struct hc_driver __read_mostly fsl_ehci_hc_driver; + /* configure so an HC device and id are always provided */ /* always called with process context; sleeping is OK */ -/** - * usb_hcd_fsl_probe - initialize FSL-based HCDs - * @drvier: Driver to be used for this HCD +/* + * fsl_ehci_drv_probe - initialize FSL-based HCDs * @pdev: USB Host Controller being probed * Context: !in_interrupt() * * Allocates basic resources for this USB host controller. * */ -static int usb_hcd_fsl_probe(const struct hc_driver *driver, - struct platform_device *pdev) +static int fsl_ehci_drv_probe(struct platform_device *pdev) { struct fsl_usb2_platform_data *pdata; struct usb_hcd *hcd; @@ -86,7 +95,8 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, } irq = res->start; - hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); + hcd = usb_create_hcd(&fsl_ehci_hc_driver, &pdev->dev, + dev_name(&pdev->dev)); if (!hcd) { retval = -ENOMEM; goto err1; @@ -159,38 +169,6 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, return retval; } -/* may be called without controller electrically present */ -/* may be called with controller, bus, and devices active */ - -/** - * usb_hcd_fsl_remove - shutdown processing for FSL-based HCDs - * @dev: USB Host Controller being removed - * Context: !in_interrupt() - * - * Reverses the effect of usb_hcd_fsl_probe(). - * - */ -static void usb_hcd_fsl_remove(struct usb_hcd *hcd, - struct platform_device *pdev) -{ - struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); - - if (!IS_ERR_OR_NULL(hcd->usb_phy)) { - otg_set_host(hcd->usb_phy->otg, NULL); - usb_put_phy(hcd->usb_phy); - } - - usb_remove_hcd(hcd); - - /* - * do platform specific un-initialization: - * release iomux pins, disable clock, etc. - */ - if (pdata->exit) - pdata->exit(pdev); - usb_put_hcd(hcd); -} - static int ehci_fsl_setup_phy(struct usb_hcd *hcd, enum fsl_usb2_phy_modes phy_mode, unsigned int port_offset) @@ -636,79 +614,77 @@ static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port) #define ehci_start_port_reset NULL #endif /* CONFIG_USB_OTG */ +static struct ehci_driver_overrides ehci_fsl_overrides __initdata = { + .extra_priv_size = sizeof(struct ehci_fsl), + .reset = ehci_fsl_setup, +}; -static const struct hc_driver ehci_fsl_hc_driver = { - .description = hcd_name, - .product_desc = "Freescale On-Chip EHCI Host Controller", - .hcd_priv_size = sizeof(struct ehci_fsl), +/** + * fsl_ehci_drv_remove - shutdown processing for FSL-based HCDs + * @dev: USB Host Controller being removed + * Context: !in_interrupt() + * + * Reverses the effect of usb_hcd_fsl_probe(). + * + */ - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, +static int fsl_ehci_drv_remove(struct platform_device *pdev) +{ + struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); - /* - * basic lifecycle operations - */ - .reset = ehci_fsl_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, + if (!IS_ERR_OR_NULL(hcd->usb_phy)) { + otg_set_host(hcd->usb_phy->otg, NULL); + usb_put_phy(hcd->usb_phy); + } - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, + usb_remove_hcd(hcd); /* - * scheduling support + * do platform specific un-initialization: + * release iomux pins, disable clock, etc. */ - .get_frame_number = ehci_get_frame, + if (pdata->exit) + pdata->exit(pdev); + usb_put_hcd(hcd); - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .start_port_reset = ehci_start_port_reset, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, + return 0; +} + +static struct platform_driver ehci_fsl_driver = { + .probe = fsl_ehci_drv_probe, + .remove = fsl_ehci_drv_remove, + .shutdown = usb_hcd_platform_shutdown, + .driver = { + .name = "fsl-ehci", + .pm = EHCI_FSL_PM_OPS, + }, }; -static int ehci_fsl_drv_probe(struct platform_device *pdev) +static int __init ehci_fsl_init(void) { if (usb_disabled()) return -ENODEV; - /* FIXME we only want one one probe() not two */ - return usb_hcd_fsl_probe(&ehci_fsl_hc_driver, pdev); -} + pr_info(DRV_NAME ": " DRIVER_DESC "\n"); -static int ehci_fsl_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); + ehci_init_driver(&fsl_ehci_hc_driver, &ehci_fsl_overrides); - /* FIXME we only want one one remove() not two */ - usb_hcd_fsl_remove(hcd, pdev); - return 0; + fsl_ehci_hc_driver.product_desc = + "Freescale On-Chip EHCI Host Controller"; + fsl_ehci_hc_driver.start_port_reset = ehci_start_port_reset; + + + return platform_driver_register(&ehci_fsl_driver); } +module_init(ehci_fsl_init); -MODULE_ALIAS("platform:fsl-ehci"); +static void __exit ehci_fsl_cleanup(void) +{ + platform_driver_unregister(&ehci_fsl_driver); +} +module_exit(ehci_fsl_cleanup); -static struct platform_driver ehci_fsl_driver = { - .probe = ehci_fsl_drv_probe, - .remove = ehci_fsl_drv_remove, - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "fsl-ehci", - .pm = EHCI_FSL_PM_OPS, - }, -}; +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index f4d88dfb26a7..c63d82c91f10 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -239,7 +239,7 @@ static void tdi_reset (struct ehci_hcd *ehci) * Reset a non-running (STS_HALT == 1) controller. * Must be called with interrupts enabled and the lock not held. */ -static int ehci_reset (struct ehci_hcd *ehci) +int ehci_reset(struct ehci_hcd *ehci) { int retval; u32 command = ehci_readl(ehci, &ehci->regs->command); @@ -275,6 +275,7 @@ static int ehci_reset (struct ehci_hcd *ehci) ehci->resuming_ports = 0; return retval; } +EXPORT_SYMBOL_GPL(ehci_reset); /* * Idle the controller (turn off the schedules). @@ -1250,11 +1251,6 @@ MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR (DRIVER_AUTHOR); MODULE_LICENSE ("GPL"); -#ifdef CONFIG_USB_EHCI_FSL -#include "ehci-fsl.c" -#define PLATFORM_DRIVER ehci_fsl_driver -#endif - #ifdef CONFIG_USB_EHCI_SH #include "ehci-sh.c" #define PLATFORM_DRIVER ehci_hcd_sh_driver diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 69208447d213..22abb6830dfa 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -155,7 +155,7 @@ static int ehci_port_change(struct ehci_hcd *ehci) return 0; } -static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, +void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, bool suspending, bool do_wakeup) { int port; @@ -220,6 +220,7 @@ static void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, spin_unlock_irq(&ehci->lock); } +EXPORT_SYMBOL_GPL(ehci_adjust_port_wakeup_flags); static int ehci_bus_suspend (struct usb_hcd *hcd) { diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index d8a75a51d6d4..2593def13cea 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -88,15 +88,13 @@ static int ehci_platform_power_on(struct platform_device *dev) } for (phy_num = 0; phy_num < priv->num_phys; phy_num++) { - if (priv->phys[phy_num]) { - ret = phy_init(priv->phys[phy_num]); - if (ret) - goto err_exit_phy; - ret = phy_power_on(priv->phys[phy_num]); - if (ret) { - phy_exit(priv->phys[phy_num]); - goto err_exit_phy; - } + ret = phy_init(priv->phys[phy_num]); + if (ret) + goto err_exit_phy; + ret = phy_power_on(priv->phys[phy_num]); + if (ret) { + phy_exit(priv->phys[phy_num]); + goto err_exit_phy; } } @@ -104,10 +102,8 @@ static int ehci_platform_power_on(struct platform_device *dev) err_exit_phy: while (--phy_num >= 0) { - if (priv->phys[phy_num]) { - phy_power_off(priv->phys[phy_num]); - phy_exit(priv->phys[phy_num]); - } + phy_power_off(priv->phys[phy_num]); + phy_exit(priv->phys[phy_num]); } err_disable_clks: while (--clk >= 0) @@ -123,10 +119,8 @@ static void ehci_platform_power_off(struct platform_device *dev) int clk, phy_num; for (phy_num = 0; phy_num < priv->num_phys; phy_num++) { - if (priv->phys[phy_num]) { - phy_power_off(priv->phys[phy_num]); - phy_exit(priv->phys[phy_num]); - } + phy_power_off(priv->phys[phy_num]); + phy_exit(priv->phys[phy_num]); } for (clk = EHCI_MAX_CLKS - 1; clk >= 0; clk--) @@ -154,7 +148,6 @@ static int ehci_platform_probe(struct platform_device *dev) struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev); struct ehci_platform_priv *priv; struct ehci_hcd *ehci; - const char *phy_name; int err, irq, phy_num, clk = 0; if (usb_disabled()) @@ -202,38 +195,28 @@ static int ehci_platform_probe(struct platform_device *dev) "needs-reset-on-resume")) pdata->reset_on_resume = 1; + if (of_property_read_bool(dev->dev.of_node, + "has-transaction-translator")) + pdata->has_tt = 1; + priv->num_phys = of_count_phandle_with_args(dev->dev.of_node, "phys", "#phy-cells"); - priv->num_phys = priv->num_phys > 0 ? priv->num_phys : 1; - priv->phys = devm_kcalloc(&dev->dev, priv->num_phys, - sizeof(struct phy *), GFP_KERNEL); - if (!priv->phys) - return -ENOMEM; + if (priv->num_phys > 0) { + priv->phys = devm_kcalloc(&dev->dev, priv->num_phys, + sizeof(struct phy *), GFP_KERNEL); + if (!priv->phys) + return -ENOMEM; + } else + priv->num_phys = 0; for (phy_num = 0; phy_num < priv->num_phys; phy_num++) { - err = of_property_read_string_index( - dev->dev.of_node, - "phy-names", phy_num, - &phy_name); - - if (err < 0) { - if (priv->num_phys > 1) { - dev_err(&dev->dev, "phy-names not provided"); - goto err_put_hcd; - } else - phy_name = "usb"; - } - - priv->phys[phy_num] = devm_phy_get(&dev->dev, - phy_name); - if (IS_ERR(priv->phys[phy_num])) { - err = PTR_ERR(priv->phys[phy_num]); - if ((priv->num_phys > 1) || - (err == -EPROBE_DEFER)) - goto err_put_hcd; - priv->phys[phy_num] = NULL; - } + priv->phys[phy_num] = devm_of_phy_get_by_index( + &dev->dev, dev->dev.of_node, phy_num); + if (IS_ERR(priv->phys[phy_num])) { + err = PTR_ERR(priv->phys[phy_num]); + goto err_put_hcd; + } } for (clk = 0; clk < EHCI_MAX_CLKS; clk++) { diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index ff9af29b4e9f..4031b372008e 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -304,6 +304,7 @@ struct dma_aligned_buffer { static void free_dma_aligned_buffer(struct urb *urb) { struct dma_aligned_buffer *temp; + size_t length; if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER)) return; @@ -311,9 +312,14 @@ static void free_dma_aligned_buffer(struct urb *urb) temp = container_of(urb->transfer_buffer, struct dma_aligned_buffer, data); - if (usb_urb_dir_in(urb)) - memcpy(temp->old_xfer_buffer, temp->data, - urb->transfer_buffer_length); + if (usb_urb_dir_in(urb)) { + if (usb_pipeisoc(urb->pipe)) + length = urb->transfer_buffer_length; + else + length = urb->actual_length; + + memcpy(temp->old_xfer_buffer, temp->data, length); + } urb->transfer_buffer = temp->old_xfer_buffer; kfree(temp->kmalloc_ptr); diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 52ef0844a180..f700157cd084 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -868,10 +868,13 @@ extern void ehci_init_driver(struct hc_driver *drv, extern int ehci_setup(struct usb_hcd *hcd); extern int ehci_handshake(struct ehci_hcd *ehci, void __iomem *ptr, u32 mask, u32 done, int usec); +extern int ehci_reset(struct ehci_hcd *ehci); #ifdef CONFIG_PM extern int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup); extern int ehci_resume(struct usb_hcd *hcd, bool force_reset); +extern void ehci_adjust_port_wakeup_flags(struct ehci_hcd *ehci, + bool suspending, bool do_wakeup); #endif /* CONFIG_PM */ extern int ehci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 7e325e90d7d9..5e0d60035216 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -126,6 +126,8 @@ static int usb_get_ver_info(struct device_node *np) /* * returns 1 for usb controller version 1.6 * returns 2 for usb controller version 2.2 + * returns 3 for usb controller version 2.4 + * returns 4 for usb controller version 2.5 * returns 0 otherwise */ if (of_device_is_compatible(np, "fsl-usb2-dr")) { @@ -135,6 +137,8 @@ static int usb_get_ver_info(struct device_node *np) ver = FSL_USB_VER_2_2; else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4")) ver = FSL_USB_VER_2_4; + else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.5")) + ver = FSL_USB_VER_2_5; else /* for previous controller versions */ ver = FSL_USB_VER_OLD; @@ -150,6 +154,10 @@ static int usb_get_ver_info(struct device_node *np) ver = FSL_USB_VER_1_6; else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2")) ver = FSL_USB_VER_2_2; + else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.4")) + ver = FSL_USB_VER_2_4; + else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.5")) + ver = FSL_USB_VER_2_5; else /* for previous controller versions */ ver = FSL_USB_VER_OLD; } diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index 00e492eaba6a..1fd8718a9f11 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -499,7 +499,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) unsigned i; __hc32 tag; - if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC))) + seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC); + if (!seen) return 0; seen_count = 0; diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 13181dcd9820..d089b3fb7a13 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -500,7 +500,8 @@ static void start_atl_transfers(struct isp116x *isp116x) if (isp116x->periodic_count) { isp116x->fmindex = index = (isp116x->fmindex + 1) & (PERIODIC_SIZE - 1); - if ((load = isp116x->load[index])) { + load = isp116x->load[index]; + if (load) { /* Bring all int transfers for this frame into the active queue */ isp116x->atl_active = last_ep = diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 04f2186939d2..c3eded317495 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -491,7 +491,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) char *next; unsigned i; - if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC))) + seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC); + if (!seen) return 0; seen_count = 0; @@ -506,7 +507,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) /* dump a snapshot of the periodic schedule (and load) */ spin_lock_irqsave (&ohci->lock, flags); for (i = 0; i < NUM_INTS; i++) { - if (!(ed = ohci->periodic [i])) + ed = ohci->periodic[i]; + if (!ed) continue; temp = scnprintf (next, size, "%2d [%3d]:", i, ohci->load [i]); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 1dab9dfbca6a..760cb57e954e 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -155,7 +155,8 @@ static int ohci_urb_enqueue ( int retval = 0; /* every endpoint has a ed, locate and maybe (re)initialize it */ - if (! (ed = ed_get (ohci, urb->ep, urb->dev, pipe, urb->interval))) + ed = ed_get(ohci, urb->ep, urb->dev, pipe, urb->interval); + if (! ed) return -ENOMEM; /* for the private part of the URB we need the number of TDs (size) */ diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index 185ceee52d47..c2669f185f65 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -57,15 +57,13 @@ static int ohci_platform_power_on(struct platform_device *dev) } for (phy_num = 0; phy_num < priv->num_phys; phy_num++) { - if (priv->phys[phy_num]) { - ret = phy_init(priv->phys[phy_num]); - if (ret) - goto err_exit_phy; - ret = phy_power_on(priv->phys[phy_num]); - if (ret) { - phy_exit(priv->phys[phy_num]); - goto err_exit_phy; - } + ret = phy_init(priv->phys[phy_num]); + if (ret) + goto err_exit_phy; + ret = phy_power_on(priv->phys[phy_num]); + if (ret) { + phy_exit(priv->phys[phy_num]); + goto err_exit_phy; } } @@ -73,10 +71,8 @@ static int ohci_platform_power_on(struct platform_device *dev) err_exit_phy: while (--phy_num >= 0) { - if (priv->phys[phy_num]) { - phy_power_off(priv->phys[phy_num]); - phy_exit(priv->phys[phy_num]); - } + phy_power_off(priv->phys[phy_num]); + phy_exit(priv->phys[phy_num]); } err_disable_clks: while (--clk >= 0) @@ -92,10 +88,8 @@ static void ohci_platform_power_off(struct platform_device *dev) int clk, phy_num; for (phy_num = 0; phy_num < priv->num_phys; phy_num++) { - if (priv->phys[phy_num]) { - phy_power_off(priv->phys[phy_num]); - phy_exit(priv->phys[phy_num]); - } + phy_power_off(priv->phys[phy_num]); + phy_exit(priv->phys[phy_num]); } for (clk = OHCI_MAX_CLKS - 1; clk >= 0; clk--) @@ -123,7 +117,6 @@ static int ohci_platform_probe(struct platform_device *dev) struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev); struct ohci_platform_priv *priv; struct ohci_hcd *ohci; - const char *phy_name; int err, irq, phy_num, clk = 0; if (usb_disabled()) @@ -174,36 +167,22 @@ static int ohci_platform_probe(struct platform_device *dev) priv->num_phys = of_count_phandle_with_args(dev->dev.of_node, "phys", "#phy-cells"); - priv->num_phys = priv->num_phys > 0 ? priv->num_phys : 1; - priv->phys = devm_kcalloc(&dev->dev, priv->num_phys, - sizeof(struct phy *), GFP_KERNEL); - if (!priv->phys) - return -ENOMEM; + if (priv->num_phys > 0) { + priv->phys = devm_kcalloc(&dev->dev, priv->num_phys, + sizeof(struct phy *), GFP_KERNEL); + if (!priv->phys) + return -ENOMEM; + } else + priv->num_phys = 0; for (phy_num = 0; phy_num < priv->num_phys; phy_num++) { - err = of_property_read_string_index( - dev->dev.of_node, - "phy-names", phy_num, - &phy_name); - - if (err < 0) { - if (priv->num_phys > 1) { - dev_err(&dev->dev, "phy-names not provided"); - goto err_put_hcd; - } else - phy_name = "usb"; - } - - priv->phys[phy_num] = devm_phy_get(&dev->dev, - phy_name); - if (IS_ERR(priv->phys[phy_num])) { - err = PTR_ERR(priv->phys[phy_num]); - if ((priv->num_phys > 1) || - (err == -EPROBE_DEFER)) - goto err_put_hcd; - priv->phys[phy_num] = NULL; - } + priv->phys[phy_num] = devm_of_phy_get_by_index( + &dev->dev, dev->dev.of_node, phy_num); + if (IS_ERR(priv->phys[phy_num])) { + err = PTR_ERR(priv->phys[phy_num]); + goto err_put_hcd; + } } for (clk = 0; clk < OHCI_MAX_CLKS; clk++) { diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index 1463c398d322..f7d561ed3c23 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -407,7 +407,8 @@ static struct ed *ed_get ( spin_lock_irqsave (&ohci->lock, flags); - if (!(ed = ep->hcpriv)) { + ed = ep->hcpriv; + if (!ed) { struct td *td; int is_out; u32 info; diff --git a/drivers/usb/host/ssb-hcd.c b/drivers/usb/host/ssb-hcd.c index ffc32f4b1b1b..62b6b7804c66 100644 --- a/drivers/usb/host/ssb-hcd.c +++ b/drivers/usb/host/ssb-hcd.c @@ -105,7 +105,7 @@ static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev, bool { struct platform_device *hci_dev; struct resource hci_res[2]; - int ret = -ENOMEM; + int ret; memset(hci_res, 0, sizeof(hci_res)); @@ -119,7 +119,7 @@ static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev, bool hci_dev = platform_device_alloc(ohci ? "ohci-platform" : "ehci-platform" , 0); if (!hci_dev) - return NULL; + return ERR_PTR(-ENOMEM); hci_dev->dev.parent = dev->dev; hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask; @@ -166,7 +166,8 @@ static int ssb_hcd_probe(struct ssb_device *dev, if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32))) return -EOPNOTSUPP; - usb_dev = kzalloc(sizeof(struct ssb_hcd_device), GFP_KERNEL); + usb_dev = devm_kzalloc(dev->dev, sizeof(struct ssb_hcd_device), + GFP_KERNEL); if (!usb_dev) return -ENOMEM; @@ -181,10 +182,8 @@ static int ssb_hcd_probe(struct ssb_device *dev, start = ssb_admatch_base(tmp); len = (coreid == SSB_DEV_USB20_HOST) ? 0x800 : ssb_admatch_size(tmp); usb_dev->ohci_dev = ssb_hcd_create_pdev(dev, true, start, len); - if (IS_ERR(usb_dev->ohci_dev)) { - err = PTR_ERR(usb_dev->ohci_dev); - goto err_free_usb_dev; - } + if (IS_ERR(usb_dev->ohci_dev)) + return PTR_ERR(usb_dev->ohci_dev); if (coreid == SSB_DEV_USB20_HOST) { start = ssb_admatch_base(tmp) + 0x800; /* ehci core offset */ @@ -200,8 +199,6 @@ static int ssb_hcd_probe(struct ssb_device *dev, err_unregister_ohci_dev: platform_device_unregister(usb_dev->ohci_dev); -err_free_usb_dev: - kfree(usb_dev); return err; } diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 0827d7c96527..e75c565feb53 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1184,6 +1184,10 @@ int xhci_bus_resume(struct usb_hcd *hcd) struct xhci_bus_state *bus_state; u32 temp; unsigned long flags; + unsigned long port_was_suspended = 0; + bool need_usb2_u3_exit = false; + int slot_id; + int sret; max_ports = xhci_get_ports(hcd, &port_array); bus_state = &xhci->bus_state[hcd_index(hcd)]; @@ -1207,7 +1211,6 @@ int xhci_bus_resume(struct usb_hcd *hcd) /* Check whether need resume ports. If needed resume port and disable remote wakeup */ u32 temp; - int slot_id; temp = readl(port_array[port_index]); if (DEV_SUPERSPEED(temp)) @@ -1216,39 +1219,47 @@ int xhci_bus_resume(struct usb_hcd *hcd) temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); if (test_bit(port_index, &bus_state->bus_suspended) && (temp & PORT_PLS_MASK)) { - if (DEV_SUPERSPEED(temp)) { - xhci_set_link_state(xhci, port_array, - port_index, XDEV_U0); - } else { + set_bit(port_index, &port_was_suspended); + if (!DEV_SUPERSPEED(temp)) { xhci_set_link_state(xhci, port_array, port_index, XDEV_RESUME); - - spin_unlock_irqrestore(&xhci->lock, flags); - msleep(20); - spin_lock_irqsave(&xhci->lock, flags); - - xhci_set_link_state(xhci, port_array, - port_index, XDEV_U0); + need_usb2_u3_exit = true; } - /* wait for the port to enter U0 and report port link - * state change. - */ - spin_unlock_irqrestore(&xhci->lock, flags); - msleep(20); - spin_lock_irqsave(&xhci->lock, flags); - - /* Clear PLC */ - xhci_test_and_clear_bit(xhci, port_array, port_index, - PORT_PLC); - - slot_id = xhci_find_slot_id_by_port(hcd, - xhci, port_index + 1); - if (slot_id) - xhci_ring_device(xhci, slot_id); } else writel(temp, port_array[port_index]); } + if (need_usb2_u3_exit) { + spin_unlock_irqrestore(&xhci->lock, flags); + msleep(20); + spin_lock_irqsave(&xhci->lock, flags); + } + + port_index = max_ports; + while (port_index--) { + if (!(port_was_suspended & BIT(port_index))) + continue; + /* Clear PLC to poll it later after XDEV_U0 */ + xhci_test_and_clear_bit(xhci, port_array, port_index, PORT_PLC); + xhci_set_link_state(xhci, port_array, port_index, XDEV_U0); + } + + port_index = max_ports; + while (port_index--) { + if (!(port_was_suspended & BIT(port_index))) + continue; + /* Poll and Clear PLC */ + sret = xhci_handshake(port_array[port_index], PORT_PLC, + PORT_PLC, 10 * 1000); + if (sret) + xhci_warn(xhci, "port %d resume PLC timeout\n", + port_index); + xhci_test_and_clear_bit(xhci, port_array, port_index, PORT_PLC); + slot_id = xhci_find_slot_id_by_port(hcd, xhci, port_index + 1); + if (slot_id) + xhci_ring_device(xhci, slot_id); + } + (void) readl(&xhci->op_regs->command); bus_state->next_statechange = jiffies + msecs_to_jiffies(5); diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 2af32e26fafc..4a4cb1d91ac8 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -45,6 +45,13 @@ static const char hcd_name[] = "xhci_hcd"; static struct hc_driver __read_mostly xhci_pci_hc_driver; +static int xhci_pci_setup(struct usb_hcd *hcd); + +static const struct xhci_driver_overrides xhci_pci_overrides __initconst = { + .extra_priv_size = sizeof(struct xhci_hcd), + .reset = xhci_pci_setup, +}; + /* called after powerup, by probe or system-pm "wakeup" */ static int xhci_pci_reinit(struct xhci_hcd *xhci, struct pci_dev *pdev) { @@ -206,7 +213,6 @@ static int xhci_pci_setup(struct usb_hcd *hcd) if (!retval) return retval; - kfree(xhci); return retval; } @@ -247,11 +253,6 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) goto dealloc_usb2_hcd; } - /* Set the xHCI pointer before xhci_pci_setup() (aka hcd_driver.reset) - * is called by usb_add_hcd(). - */ - *((struct xhci_hcd **) xhci->shared_hcd->hcd_priv) = xhci; - retval = usb_add_hcd(xhci->shared_hcd, dev->irq, IRQF_SHARED); if (retval) @@ -290,8 +291,6 @@ static void xhci_pci_remove(struct pci_dev *dev) /* Workaround for spurious wakeups at shutdown with HSW */ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) pci_set_power_state(dev, PCI_D3hot); - - kfree(xhci); } #ifdef CONFIG_PM @@ -379,7 +378,7 @@ static struct pci_driver xhci_pci_driver = { static int __init xhci_pci_init(void) { - xhci_init_driver(&xhci_pci_hc_driver, xhci_pci_setup); + xhci_init_driver(&xhci_pci_hc_driver, &xhci_pci_overrides); #ifdef CONFIG_PM xhci_pci_hc_driver.pci_suspend = xhci_pci_suspend; xhci_pci_hc_driver.pci_resume = xhci_pci_resume; diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 783e819139a7..890ad9d9d329 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -26,6 +26,15 @@ static struct hc_driver __read_mostly xhci_plat_hc_driver; +static int xhci_plat_setup(struct usb_hcd *hcd); +static int xhci_plat_start(struct usb_hcd *hcd); + +static const struct xhci_driver_overrides xhci_plat_overrides __initconst = { + .extra_priv_size = sizeof(struct xhci_hcd), + .reset = xhci_plat_setup, + .start = xhci_plat_start, +}; + static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci) { /* @@ -127,31 +136,21 @@ static int xhci_plat_probe(struct platform_device *pdev) goto disable_clk; } - ret = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (ret) - goto disable_clk; - device_wakeup_enable(hcd->self.controller); - /* USB 2.0 roothub is stored in the platform_device now. */ - hcd = platform_get_drvdata(pdev); xhci = hcd_to_xhci(hcd); xhci->clk = clk; + xhci->main_hcd = hcd; xhci->shared_hcd = usb_create_shared_hcd(driver, &pdev->dev, dev_name(&pdev->dev), hcd); if (!xhci->shared_hcd) { ret = -ENOMEM; - goto dealloc_usb2_hcd; + goto disable_clk; } if ((node && of_property_read_bool(node, "usb3-lpm-capable")) || (pdata && pdata->usb3_lpm_capable)) xhci->quirks |= XHCI_LPM_SUPPORT; - /* - * Set the xHCI pointer before xhci_plat_setup() (aka hcd_driver.reset) - * is called by usb_add_hcd(). - */ - *((struct xhci_hcd **) xhci->shared_hcd->hcd_priv) = xhci; if (HCC_MAX_PSA(xhci->hcc_params) >= 4) xhci->shared_hcd->can_do_streams = 1; @@ -168,21 +167,26 @@ static int xhci_plat_probe(struct platform_device *pdev) goto put_usb3_hcd; } - ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); + ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) goto disable_usb_phy; + ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); + if (ret) + goto dealloc_usb2_hcd; + return 0; + +dealloc_usb2_hcd: + usb_remove_hcd(hcd); + disable_usb_phy: usb_phy_shutdown(hcd->usb_phy); put_usb3_hcd: usb_put_hcd(xhci->shared_hcd); -dealloc_usb2_hcd: - usb_remove_hcd(hcd); - disable_clk: if (!IS_ERR(clk)) clk_disable_unprepare(clk); @@ -201,13 +205,13 @@ static int xhci_plat_remove(struct platform_device *dev) usb_remove_hcd(xhci->shared_hcd); usb_phy_shutdown(hcd->usb_phy); - usb_put_hcd(xhci->shared_hcd); usb_remove_hcd(hcd); + usb_put_hcd(xhci->shared_hcd); + if (!IS_ERR(clk)) clk_disable_unprepare(clk); usb_put_hcd(hcd); - kfree(xhci); return 0; } @@ -271,8 +275,7 @@ MODULE_ALIAS("platform:xhci-hcd"); static int __init xhci_plat_init(void) { - xhci_init_driver(&xhci_plat_hc_driver, xhci_plat_setup); - xhci_plat_hc_driver.start = xhci_plat_start; + xhci_init_driver(&xhci_plat_hc_driver, &xhci_plat_overrides); return platform_driver_register(&usb_xhci_driver); } module_init(xhci_plat_init); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 7d34cbfaf373..94416ff70810 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1934,7 +1934,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td, td->urb->actual_length = td->urb->transfer_buffer_length - EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); - else + else if (!td->urb_length_set) td->urb->actual_length = 0; return finish_td(xhci, td, event_trb, event, ep, status, false); @@ -3781,8 +3781,11 @@ static int queue_command(struct xhci_hcd *xhci, struct xhci_command *cmd, { int reserved_trbs = xhci->cmd_ring_reserved_trbs; int ret; - if (xhci->xhc_state & XHCI_STATE_DYING) + + if (xhci->xhc_state) { + xhci_dbg(xhci, "xHCI dying or halted, can't queue_command\n"); return -ESHUTDOWN; + } if (!command_must_succeed) reserved_trbs++; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 36bf089b708f..7da0d6043d33 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -660,12 +660,6 @@ static void xhci_only_stop_hcd(struct usb_hcd *hcd) spin_lock_irq(&xhci->lock); xhci_halt(xhci); - - /* The shared_hcd is going to be deallocated shortly (the USB core only - * calls this function when allocation fails in usb_add_hcd(), or - * usb_remove_hcd() is called). So we need to unset xHCI's pointer. - */ - xhci->shared_hcd = NULL; spin_unlock_irq(&xhci->lock); } @@ -897,6 +891,9 @@ int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) struct usb_hcd *hcd = xhci_to_hcd(xhci); u32 command; + if (!hcd->state) + return 0; + if (hcd->state != HC_STATE_SUSPENDED || xhci->shared_hcd->state != HC_STATE_SUSPENDED) return -EINVAL; @@ -983,6 +980,9 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) int retval = 0; bool comp_timer_running = false; + if (!hcd->state) + return 0; + /* Wait a bit if either of the roothubs need to settle from the * transition into bus suspend. */ @@ -3769,8 +3769,6 @@ disable_slot: /* * Issue an Address Device command and optionally send a corresponding * SetAddress request to the device. - * We should be protected by the usb_address0_mutex in hub_wq's hub_port_init, - * so we should only issue and wait on one address command at the same time. */ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev, enum xhci_setup_dev setup) @@ -4842,10 +4840,7 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) hcd->self.no_stop_on_short = 1; if (usb_hcd_is_primary_hcd(hcd)) { - xhci = kzalloc(sizeof(struct xhci_hcd), GFP_KERNEL); - if (!xhci) - return -ENOMEM; - *((struct xhci_hcd **) hcd->hcd_priv) = xhci; + xhci = hcd_to_xhci(hcd); xhci->main_hcd = hcd; /* Mark the first roothub as being USB 2.0. * The xHCI driver will register the USB 3.0 roothub. @@ -4894,13 +4889,13 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) /* Make sure the HC is halted. */ retval = xhci_halt(xhci); if (retval) - goto error; + return retval; xhci_dbg(xhci, "Resetting HCD\n"); /* Reset the internal HC memory state and registers. */ retval = xhci_reset(xhci); if (retval) - goto error; + return retval; xhci_dbg(xhci, "Reset complete\n"); /* Set dma_mask and coherent_dma_mask to 64-bits, @@ -4915,16 +4910,13 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) /* Initialize HCD and host controller data structures. */ retval = xhci_init(hcd); if (retval) - goto error; + return retval; xhci_dbg(xhci, "Called HCD init\n"); xhci_info(xhci, "hcc params 0x%08x hci version 0x%x quirks 0x%08x\n", xhci->hcc_params, xhci->hci_version, xhci->quirks); return 0; -error: - kfree(xhci); - return retval; } EXPORT_SYMBOL_GPL(xhci_gen_setup); @@ -4989,11 +4981,21 @@ static const struct hc_driver xhci_hc_driver = { .find_raw_port_number = xhci_find_raw_port_number, }; -void xhci_init_driver(struct hc_driver *drv, int (*setup_fn)(struct usb_hcd *)) +void xhci_init_driver(struct hc_driver *drv, + const struct xhci_driver_overrides *over) { - BUG_ON(!setup_fn); + BUG_ON(!over); + + /* Copy the generic table to drv then apply the overrides */ *drv = xhci_hc_driver; - drv->reset = setup_fn; + + if (over) { + drv->hcd_priv_size += over->extra_priv_size; + if (over->reset) + drv->reset = over->reset; + if (over->start) + drv->start = over->start; + } } EXPORT_SYMBOL_GPL(xhci_init_driver); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 6977f8491fa7..31e46cc55807 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1593,10 +1593,24 @@ struct xhci_hcd { #define COMP_MODE_RCVRY_MSECS 2000 }; +/* Platform specific overrides to generic XHCI hc_driver ops */ +struct xhci_driver_overrides { + size_t extra_priv_size; + int (*reset)(struct usb_hcd *hcd); + int (*start)(struct usb_hcd *hcd); +}; + /* convert between an HCD pointer and the corresponding EHCI_HCD */ static inline struct xhci_hcd *hcd_to_xhci(struct usb_hcd *hcd) { - return *((struct xhci_hcd **) (hcd->hcd_priv)); + struct usb_hcd *primary_hcd; + + if (usb_hcd_is_primary_hcd(hcd)) + primary_hcd = hcd; + else + primary_hcd = hcd->primary_hcd; + + return (struct xhci_hcd *) (primary_hcd->hcd_priv); } static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) @@ -1750,7 +1764,8 @@ int xhci_run(struct usb_hcd *hcd); void xhci_stop(struct usb_hcd *hcd); void xhci_shutdown(struct usb_hcd *hcd); int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks); -void xhci_init_driver(struct hc_driver *drv, int (*setup_fn)(struct usb_hcd *)); +void xhci_init_driver(struct hc_driver *drv, + const struct xhci_driver_overrides *over); #ifdef CONFIG_PM int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup); |