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3c9740a117
Individual controller driver has different requirement for wakeup setting, so move it from core to itself. In order to align with current etting the default wakeup setting is enabled (except for chipidea host). Pass compile test with below commands: make O=outout/all allmodconfig make -j$CPU_NUM O=outout/all drivers/usb Signed-off-by: Peter Chen <peter.chen@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
228 lines
5.0 KiB
C
228 lines
5.0 KiB
C
/*
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* Generic platform ohci driver
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*
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* Copyright 2007 Michael Buesch <m@bues.ch>
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* Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
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*
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* Derived from the OCHI-SSB driver
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* Derived from the OHCI-PCI driver
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* Copyright 1999 Roman Weissgaerber
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* Copyright 2000-2002 David Brownell
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* Copyright 1999 Linus Torvalds
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* Copyright 1999 Gregory P. Smith
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*
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* Licensed under the GNU/GPL. See COPYING for details.
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*/
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#include <linux/hrtimer.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/usb/ohci_pdriver.h>
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#include <linux/usb.h>
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#include <linux/usb/hcd.h>
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#include "ohci.h"
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#define DRIVER_DESC "OHCI generic platform driver"
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static const char hcd_name[] = "ohci-platform";
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static int ohci_platform_reset(struct usb_hcd *hcd)
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{
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struct platform_device *pdev = to_platform_device(hcd->self.controller);
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struct usb_ohci_pdata *pdata = dev_get_platdata(&pdev->dev);
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struct ohci_hcd *ohci = hcd_to_ohci(hcd);
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if (pdata->big_endian_desc)
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ohci->flags |= OHCI_QUIRK_BE_DESC;
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if (pdata->big_endian_mmio)
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ohci->flags |= OHCI_QUIRK_BE_MMIO;
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if (pdata->no_big_frame_no)
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ohci->flags |= OHCI_QUIRK_FRAME_NO;
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if (pdata->num_ports)
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ohci->num_ports = pdata->num_ports;
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return ohci_setup(hcd);
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}
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static struct hc_driver __read_mostly ohci_platform_hc_driver;
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static const struct ohci_driver_overrides platform_overrides __initconst = {
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.product_desc = "Generic Platform OHCI controller",
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.reset = ohci_platform_reset,
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};
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static int ohci_platform_probe(struct platform_device *dev)
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{
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struct usb_hcd *hcd;
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struct resource *res_mem;
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struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
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int irq;
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int err = -ENOMEM;
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if (!pdata) {
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WARN_ON(1);
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return -ENODEV;
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}
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if (usb_disabled())
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return -ENODEV;
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irq = platform_get_irq(dev, 0);
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if (irq < 0) {
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dev_err(&dev->dev, "no irq provided");
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return irq;
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}
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res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
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if (!res_mem) {
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dev_err(&dev->dev, "no memory resource provided");
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return -ENXIO;
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}
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if (pdata->power_on) {
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err = pdata->power_on(dev);
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if (err < 0)
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return err;
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}
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hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
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dev_name(&dev->dev));
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if (!hcd) {
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err = -ENOMEM;
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goto err_power;
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}
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hcd->rsrc_start = res_mem->start;
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hcd->rsrc_len = resource_size(res_mem);
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hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
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if (IS_ERR(hcd->regs)) {
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err = PTR_ERR(hcd->regs);
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goto err_put_hcd;
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}
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err = usb_add_hcd(hcd, irq, IRQF_SHARED);
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if (err)
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goto err_put_hcd;
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device_wakeup_enable(hcd->self.controller);
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platform_set_drvdata(dev, hcd);
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return err;
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err_put_hcd:
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usb_put_hcd(hcd);
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err_power:
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if (pdata->power_off)
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pdata->power_off(dev);
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return err;
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}
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static int ohci_platform_remove(struct platform_device *dev)
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{
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struct usb_hcd *hcd = platform_get_drvdata(dev);
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struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
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usb_remove_hcd(hcd);
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usb_put_hcd(hcd);
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if (pdata->power_off)
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pdata->power_off(dev);
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return 0;
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}
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#ifdef CONFIG_PM
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static int ohci_platform_suspend(struct device *dev)
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{
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struct usb_hcd *hcd = dev_get_drvdata(dev);
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struct usb_ohci_pdata *pdata = dev->platform_data;
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struct platform_device *pdev =
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container_of(dev, struct platform_device, dev);
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bool do_wakeup = device_may_wakeup(dev);
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int ret;
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ret = ohci_suspend(hcd, do_wakeup);
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if (ret)
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return ret;
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if (pdata->power_suspend)
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pdata->power_suspend(pdev);
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return ret;
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}
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static int ohci_platform_resume(struct device *dev)
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{
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struct usb_hcd *hcd = dev_get_drvdata(dev);
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struct usb_ohci_pdata *pdata = dev_get_platdata(dev);
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struct platform_device *pdev =
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container_of(dev, struct platform_device, dev);
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if (pdata->power_on) {
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int err = pdata->power_on(pdev);
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if (err < 0)
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return err;
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}
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ohci_resume(hcd, false);
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return 0;
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}
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#else /* !CONFIG_PM */
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#define ohci_platform_suspend NULL
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#define ohci_platform_resume NULL
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#endif /* CONFIG_PM */
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static const struct platform_device_id ohci_platform_table[] = {
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{ "ohci-platform", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(platform, ohci_platform_table);
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static const struct dev_pm_ops ohci_platform_pm_ops = {
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.suspend = ohci_platform_suspend,
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.resume = ohci_platform_resume,
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};
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static struct platform_driver ohci_platform_driver = {
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.id_table = ohci_platform_table,
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.probe = ohci_platform_probe,
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.remove = ohci_platform_remove,
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.shutdown = usb_hcd_platform_shutdown,
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.driver = {
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.owner = THIS_MODULE,
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.name = "ohci-platform",
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.pm = &ohci_platform_pm_ops,
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}
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};
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static int __init ohci_platform_init(void)
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{
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if (usb_disabled())
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return -ENODEV;
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pr_info("%s: " DRIVER_DESC "\n", hcd_name);
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ohci_init_driver(&ohci_platform_hc_driver, &platform_overrides);
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return platform_driver_register(&ohci_platform_driver);
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}
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module_init(ohci_platform_init);
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static void __exit ohci_platform_cleanup(void)
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{
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platform_driver_unregister(&ohci_platform_driver);
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}
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module_exit(ohci_platform_cleanup);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_AUTHOR("Hauke Mehrtens");
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MODULE_AUTHOR("Alan Stern");
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MODULE_LICENSE("GPL");
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