usb: host: remove tilegx platform glue
The tile architecture is getting removed, so the ehci and ohci platform glue drivers are no longer needed. In case of ohci, this is the last one to define a PLATFORM_DRIVER macro, so we can remove even more. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
Родитель
4dab216d1f
Коммит
03f4c9abd7
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@ -1275,11 +1275,6 @@ MODULE_LICENSE ("GPL");
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#define XILINX_OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver
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#define XILINX_OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver
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#endif
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#endif
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#ifdef CONFIG_TILE_USB
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#include "ehci-tilegx.c"
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#define PLATFORM_DRIVER ehci_hcd_tilegx_driver
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#endif
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#ifdef CONFIG_USB_EHCI_HCD_PMC_MSP
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#ifdef CONFIG_USB_EHCI_HCD_PMC_MSP
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#include "ehci-pmcmsp.c"
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#include "ehci-pmcmsp.c"
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#define PLATFORM_DRIVER ehci_hcd_msp_driver
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#define PLATFORM_DRIVER ehci_hcd_msp_driver
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@ -1,207 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2012 Tilera Corporation. All Rights Reserved.
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*/
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/*
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* Tilera TILE-Gx USB EHCI host controller driver.
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*/
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/usb/tilegx.h>
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#include <linux/usb.h>
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#include <asm/homecache.h>
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#include <gxio/iorpc_usb_host.h>
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#include <gxio/usb_host.h>
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static void tilegx_start_ehc(void)
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{
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}
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static void tilegx_stop_ehc(void)
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{
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}
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static int tilegx_ehci_setup(struct usb_hcd *hcd)
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{
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int ret = ehci_init(hcd);
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/*
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* Some drivers do:
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*
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* struct ehci_hcd *ehci = hcd_to_ehci(hcd);
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* ehci->need_io_watchdog = 0;
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*
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* here, but since this is a new driver we're going to leave the
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* watchdog enabled. Later we may try to turn it off and see
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* whether we run into any problems.
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*/
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return ret;
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}
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static const struct hc_driver ehci_tilegx_hc_driver = {
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.description = hcd_name,
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.product_desc = "Tile-Gx EHCI",
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.hcd_priv_size = sizeof(struct ehci_hcd),
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/*
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* Generic hardware linkage.
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*/
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.irq = ehci_irq,
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.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
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/*
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* Basic lifecycle operations.
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*/
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.reset = tilegx_ehci_setup,
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.start = ehci_run,
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.stop = ehci_stop,
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.shutdown = ehci_shutdown,
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/*
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* Managing I/O requests and associated device resources.
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*/
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.urb_enqueue = ehci_urb_enqueue,
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.urb_dequeue = ehci_urb_dequeue,
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.endpoint_disable = ehci_endpoint_disable,
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.endpoint_reset = ehci_endpoint_reset,
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/*
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* Scheduling support.
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*/
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.get_frame_number = ehci_get_frame,
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/*
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* Root hub support.
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*/
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.hub_status_data = ehci_hub_status_data,
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.hub_control = ehci_hub_control,
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.bus_suspend = ehci_bus_suspend,
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.bus_resume = ehci_bus_resume,
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.relinquish_port = ehci_relinquish_port,
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.port_handed_over = ehci_port_handed_over,
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.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
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};
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static int ehci_hcd_tilegx_drv_probe(struct platform_device *pdev)
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{
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struct usb_hcd *hcd;
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struct ehci_hcd *ehci;
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struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
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pte_t pte = { 0 };
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int my_cpu = smp_processor_id();
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int ret;
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if (usb_disabled())
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return -ENODEV;
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/*
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* Try to initialize our GXIO context; if we can't, the device
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* doesn't exist.
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*/
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if (gxio_usb_host_init(&pdata->usb_ctx, pdata->dev_index, 1) != 0)
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return -ENXIO;
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hcd = usb_create_hcd(&ehci_tilegx_hc_driver, &pdev->dev,
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dev_name(&pdev->dev));
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if (!hcd) {
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ret = -ENOMEM;
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goto err_hcd;
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}
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/*
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* We don't use rsrc_start to map in our registers, but seems like
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* we ought to set it to something, so we use the register VA.
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*/
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hcd->rsrc_start =
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(ulong) gxio_usb_host_get_reg_start(&pdata->usb_ctx);
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hcd->rsrc_len = gxio_usb_host_get_reg_len(&pdata->usb_ctx);
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hcd->regs = gxio_usb_host_get_reg_start(&pdata->usb_ctx);
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tilegx_start_ehc();
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ehci = hcd_to_ehci(hcd);
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ehci->caps = hcd->regs;
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ehci->regs =
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hcd->regs + HC_LENGTH(ehci, readl(&ehci->caps->hc_capbase));
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/* cache this readonly data; minimize chip reads */
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ehci->hcs_params = readl(&ehci->caps->hcs_params);
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/* Create our IRQs and register them. */
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pdata->irq = irq_alloc_hwirq(-1);
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if (!pdata->irq) {
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ret = -ENXIO;
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goto err_no_irq;
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}
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tile_irq_activate(pdata->irq, TILE_IRQ_PERCPU);
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/* Configure interrupts. */
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ret = gxio_usb_host_cfg_interrupt(&pdata->usb_ctx,
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cpu_x(my_cpu), cpu_y(my_cpu),
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KERNEL_PL, pdata->irq);
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if (ret) {
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ret = -ENXIO;
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goto err_have_irq;
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}
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/* Register all of our memory. */
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pte = pte_set_home(pte, PAGE_HOME_HASH);
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ret = gxio_usb_host_register_client_memory(&pdata->usb_ctx, pte, 0);
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if (ret) {
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ret = -ENXIO;
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goto err_have_irq;
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}
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ret = usb_add_hcd(hcd, pdata->irq, IRQF_SHARED);
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if (ret == 0) {
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platform_set_drvdata(pdev, hcd);
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device_wakeup_enable(hcd->self.controller);
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return ret;
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}
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err_have_irq:
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irq_free_hwirq(pdata->irq);
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err_no_irq:
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tilegx_stop_ehc();
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usb_put_hcd(hcd);
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err_hcd:
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gxio_usb_host_destroy(&pdata->usb_ctx);
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return ret;
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}
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static int ehci_hcd_tilegx_drv_remove(struct platform_device *pdev)
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{
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struct usb_hcd *hcd = platform_get_drvdata(pdev);
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struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
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usb_remove_hcd(hcd);
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usb_put_hcd(hcd);
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tilegx_stop_ehc();
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gxio_usb_host_destroy(&pdata->usb_ctx);
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irq_free_hwirq(pdata->irq);
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return 0;
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}
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static void ehci_hcd_tilegx_drv_shutdown(struct platform_device *pdev)
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{
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usb_hcd_platform_shutdown(pdev);
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ehci_hcd_tilegx_drv_remove(pdev);
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}
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static struct platform_driver ehci_hcd_tilegx_driver = {
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.probe = ehci_hcd_tilegx_drv_probe,
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.remove = ehci_hcd_tilegx_drv_remove,
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.shutdown = ehci_hcd_tilegx_drv_shutdown,
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.driver = {
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.name = "tilegx-ehci",
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}
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};
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MODULE_ALIAS("platform:tilegx-ehci");
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@ -1244,11 +1244,6 @@ MODULE_LICENSE ("GPL");
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#define TMIO_OHCI_DRIVER ohci_hcd_tmio_driver
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#define TMIO_OHCI_DRIVER ohci_hcd_tmio_driver
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#endif
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#endif
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#ifdef CONFIG_TILE_USB
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#include "ohci-tilegx.c"
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#define PLATFORM_DRIVER ohci_hcd_tilegx_driver
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#endif
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static int __init ohci_hcd_mod_init(void)
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static int __init ohci_hcd_mod_init(void)
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{
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{
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int retval = 0;
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int retval = 0;
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@ -1273,12 +1268,6 @@ static int __init ohci_hcd_mod_init(void)
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goto error_ps3;
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goto error_ps3;
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#endif
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#endif
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#ifdef PLATFORM_DRIVER
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retval = platform_driver_register(&PLATFORM_DRIVER);
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if (retval < 0)
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goto error_platform;
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#endif
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#ifdef OF_PLATFORM_DRIVER
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#ifdef OF_PLATFORM_DRIVER
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retval = platform_driver_register(&OF_PLATFORM_DRIVER);
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retval = platform_driver_register(&OF_PLATFORM_DRIVER);
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if (retval < 0)
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if (retval < 0)
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@ -1322,10 +1311,6 @@ static int __init ohci_hcd_mod_init(void)
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platform_driver_unregister(&OF_PLATFORM_DRIVER);
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platform_driver_unregister(&OF_PLATFORM_DRIVER);
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error_of_platform:
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error_of_platform:
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#endif
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#endif
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#ifdef PLATFORM_DRIVER
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platform_driver_unregister(&PLATFORM_DRIVER);
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error_platform:
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#endif
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#ifdef PS3_SYSTEM_BUS_DRIVER
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#ifdef PS3_SYSTEM_BUS_DRIVER
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ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
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ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
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error_ps3:
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error_ps3:
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@ -1353,9 +1338,6 @@ static void __exit ohci_hcd_mod_exit(void)
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#ifdef OF_PLATFORM_DRIVER
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#ifdef OF_PLATFORM_DRIVER
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platform_driver_unregister(&OF_PLATFORM_DRIVER);
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platform_driver_unregister(&OF_PLATFORM_DRIVER);
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#endif
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#endif
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#ifdef PLATFORM_DRIVER
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platform_driver_unregister(&PLATFORM_DRIVER);
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#endif
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#ifdef PS3_SYSTEM_BUS_DRIVER
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#ifdef PS3_SYSTEM_BUS_DRIVER
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ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
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ps3_ohci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
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#endif
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#endif
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@ -1,196 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2012 Tilera Corporation. All Rights Reserved.
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*/
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/*
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* Tilera TILE-Gx USB OHCI host controller driver.
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*/
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/usb/tilegx.h>
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#include <linux/usb.h>
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#include <asm/homecache.h>
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#include <gxio/iorpc_usb_host.h>
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#include <gxio/usb_host.h>
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static void tilegx_start_ohc(void)
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{
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}
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static void tilegx_stop_ohc(void)
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{
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}
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static int tilegx_ohci_start(struct usb_hcd *hcd)
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{
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struct ohci_hcd *ohci = hcd_to_ohci(hcd);
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int ret;
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ret = ohci_init(ohci);
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if (ret < 0)
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return ret;
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ret = ohci_run(ohci);
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if (ret < 0) {
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dev_err(hcd->self.controller, "can't start %s\n",
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hcd->self.bus_name);
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ohci_stop(hcd);
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return ret;
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}
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return 0;
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}
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static const struct hc_driver ohci_tilegx_hc_driver = {
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.description = hcd_name,
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.product_desc = "Tile-Gx OHCI",
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.hcd_priv_size = sizeof(struct ohci_hcd),
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/*
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* Generic hardware linkage.
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*/
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.irq = ohci_irq,
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.flags = HCD_MEMORY | HCD_LOCAL_MEM | HCD_USB11,
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/*
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* Basic lifecycle operations.
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*/
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.start = tilegx_ohci_start,
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.stop = ohci_stop,
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.shutdown = ohci_shutdown,
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/*
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* Managing I/O requests and associated device resources.
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*/
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.urb_enqueue = ohci_urb_enqueue,
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.urb_dequeue = ohci_urb_dequeue,
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.endpoint_disable = ohci_endpoint_disable,
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/*
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* Scheduling support.
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*/
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.get_frame_number = ohci_get_frame,
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/*
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* Root hub support.
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*/
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.hub_status_data = ohci_hub_status_data,
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.hub_control = ohci_hub_control,
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.start_port_reset = ohci_start_port_reset,
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};
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static int ohci_hcd_tilegx_drv_probe(struct platform_device *pdev)
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|
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{
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struct usb_hcd *hcd;
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struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
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|
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pte_t pte = { 0 };
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int my_cpu = smp_processor_id();
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|
||||||
int ret;
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|
||||||
if (usb_disabled())
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return -ENODEV;
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||||||
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|
||||||
/*
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|
||||||
* Try to initialize our GXIO context; if we can't, the device
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|
||||||
* doesn't exist.
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|
||||||
*/
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|
||||||
if (gxio_usb_host_init(&pdata->usb_ctx, pdata->dev_index, 0) != 0)
|
|
||||||
return -ENXIO;
|
|
||||||
|
|
||||||
hcd = usb_create_hcd(&ohci_tilegx_hc_driver, &pdev->dev,
|
|
||||||
dev_name(&pdev->dev));
|
|
||||||
if (!hcd) {
|
|
||||||
ret = -ENOMEM;
|
|
||||||
goto err_hcd;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* We don't use rsrc_start to map in our registers, but seems like
|
|
||||||
* we ought to set it to something, so we use the register VA.
|
|
||||||
*/
|
|
||||||
hcd->rsrc_start =
|
|
||||||
(ulong) gxio_usb_host_get_reg_start(&pdata->usb_ctx);
|
|
||||||
hcd->rsrc_len = gxio_usb_host_get_reg_len(&pdata->usb_ctx);
|
|
||||||
hcd->regs = gxio_usb_host_get_reg_start(&pdata->usb_ctx);
|
|
||||||
|
|
||||||
tilegx_start_ohc();
|
|
||||||
|
|
||||||
/* Create our IRQs and register them. */
|
|
||||||
pdata->irq = irq_alloc_hwirq(-1);
|
|
||||||
if (!pdata->irq) {
|
|
||||||
ret = -ENXIO;
|
|
||||||
goto err_no_irq;
|
|
||||||
}
|
|
||||||
|
|
||||||
tile_irq_activate(pdata->irq, TILE_IRQ_PERCPU);
|
|
||||||
|
|
||||||
/* Configure interrupts. */
|
|
||||||
ret = gxio_usb_host_cfg_interrupt(&pdata->usb_ctx,
|
|
||||||
cpu_x(my_cpu), cpu_y(my_cpu),
|
|
||||||
KERNEL_PL, pdata->irq);
|
|
||||||
if (ret) {
|
|
||||||
ret = -ENXIO;
|
|
||||||
goto err_have_irq;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Register all of our memory. */
|
|
||||||
pte = pte_set_home(pte, PAGE_HOME_HASH);
|
|
||||||
ret = gxio_usb_host_register_client_memory(&pdata->usb_ctx, pte, 0);
|
|
||||||
if (ret) {
|
|
||||||
ret = -ENXIO;
|
|
||||||
goto err_have_irq;
|
|
||||||
}
|
|
||||||
|
|
||||||
ohci_hcd_init(hcd_to_ohci(hcd));
|
|
||||||
|
|
||||||
ret = usb_add_hcd(hcd, pdata->irq, IRQF_SHARED);
|
|
||||||
if (ret == 0) {
|
|
||||||
platform_set_drvdata(pdev, hcd);
|
|
||||||
device_wakeup_enable(hcd->self.controller);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
err_have_irq:
|
|
||||||
irq_free_hwirq(pdata->irq);
|
|
||||||
err_no_irq:
|
|
||||||
tilegx_stop_ohc();
|
|
||||||
usb_put_hcd(hcd);
|
|
||||||
err_hcd:
|
|
||||||
gxio_usb_host_destroy(&pdata->usb_ctx);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int ohci_hcd_tilegx_drv_remove(struct platform_device *pdev)
|
|
||||||
{
|
|
||||||
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
|
||||||
struct tilegx_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
|
|
||||||
|
|
||||||
usb_remove_hcd(hcd);
|
|
||||||
usb_put_hcd(hcd);
|
|
||||||
tilegx_stop_ohc();
|
|
||||||
gxio_usb_host_destroy(&pdata->usb_ctx);
|
|
||||||
irq_free_hwirq(pdata->irq);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void ohci_hcd_tilegx_drv_shutdown(struct platform_device *pdev)
|
|
||||||
{
|
|
||||||
usb_hcd_platform_shutdown(pdev);
|
|
||||||
ohci_hcd_tilegx_drv_remove(pdev);
|
|
||||||
}
|
|
||||||
|
|
||||||
static struct platform_driver ohci_hcd_tilegx_driver = {
|
|
||||||
.probe = ohci_hcd_tilegx_drv_probe,
|
|
||||||
.remove = ohci_hcd_tilegx_drv_remove,
|
|
||||||
.shutdown = ohci_hcd_tilegx_drv_shutdown,
|
|
||||||
.driver = {
|
|
||||||
.name = "tilegx-ohci",
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
MODULE_ALIAS("platform:tilegx-ohci");
|
|
||||||
|
|
@ -1,35 +0,0 @@
|
||||||
// SPDX-License-Identifier: GPL-2.0
|
|
||||||
/*
|
|
||||||
* Copyright 2012 Tilera Corporation. All Rights Reserved.
|
|
||||||
*
|
|
||||||
* 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 Free Software Foundation, version 2.
|
|
||||||
*
|
|
||||||
* This program is distributed in the hope that it will be useful, but
|
|
||||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
||||||
* NON INFRINGEMENT. See the GNU General Public License for
|
|
||||||
* more details.
|
|
||||||
*
|
|
||||||
* Structure to contain platform-specific data related to Tile-Gx USB
|
|
||||||
* controllers.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef _LINUX_USB_TILEGX_H
|
|
||||||
#define _LINUX_USB_TILEGX_H
|
|
||||||
|
|
||||||
#include <gxio/usb_host.h>
|
|
||||||
|
|
||||||
struct tilegx_usb_platform_data {
|
|
||||||
/* GXIO device index. */
|
|
||||||
int dev_index;
|
|
||||||
|
|
||||||
/* GXIO device context. */
|
|
||||||
gxio_usb_host_context_t usb_ctx;
|
|
||||||
|
|
||||||
/* Device IRQ. */
|
|
||||||
unsigned int irq;
|
|
||||||
};
|
|
||||||
|
|
||||||
#endif /* _LINUX_USB_TILEGX_H */
|
|
||||||
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