/* * Copyright (c) 2008 Sascha Hauer , Pengutronix * Copyright (c) 2009 Daniel Mack * * 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; either version 2 of the License, or (at your * option) any later version. * * 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. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "ehci.h" #define DRIVER_DESC "Freescale On-Chip EHCI Host driver" static const char hcd_name[] = "ehci-mxc"; #define ULPI_VIEWPORT_OFFSET 0x170 struct ehci_mxc_priv { struct clk *usbclk, *ahbclk, *phyclk; }; static struct hc_driver __read_mostly ehci_mxc_hc_driver; static const struct ehci_driver_overrides ehci_mxc_overrides __initconst = { .extra_priv_size = sizeof(struct ehci_mxc_priv), }; static int ehci_mxc_drv_probe(struct platform_device *pdev) { struct mxc_usbh_platform_data *pdata = dev_get_platdata(&pdev->dev); struct usb_hcd *hcd; struct resource *res; int irq, ret; struct ehci_mxc_priv *priv; struct device *dev = &pdev->dev; struct ehci_hcd *ehci; if (!pdata) { dev_err(dev, "No platform data given, bailing out.\n"); return -EINVAL; } irq = platform_get_irq(pdev, 0); hcd = usb_create_hcd(&ehci_mxc_hc_driver, dev, dev_name(dev)); if (!hcd) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); hcd->regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(hcd->regs)) { ret = PTR_ERR(hcd->regs); goto err_alloc; } hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); hcd->has_tt = 1; ehci = hcd_to_ehci(hcd); priv = (struct ehci_mxc_priv *) ehci->priv; /* enable clocks */ priv->usbclk = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(priv->usbclk)) { ret = PTR_ERR(priv->usbclk); goto err_alloc; } clk_prepare_enable(priv->usbclk); priv->ahbclk = devm_clk_get(&pdev->dev, "ahb"); if (IS_ERR(priv->ahbclk)) { ret = PTR_ERR(priv->ahbclk); goto err_clk_ahb; } clk_prepare_enable(priv->ahbclk); /* "dr" device has its own clock on i.MX51 */ priv->phyclk = devm_clk_get(&pdev->dev, "phy"); if (IS_ERR(priv->phyclk)) priv->phyclk = NULL; if (priv->phyclk) clk_prepare_enable(priv->phyclk); /* call platform specific init function */ if (pdata->init) { ret = pdata->init(pdev); if (ret) { dev_err(dev, "platform init failed\n"); goto err_init; } /* platforms need some time to settle changed IO settings */ mdelay(10); } /* EHCI registers start at offset 0x100 */ ehci->caps = hcd->regs + 0x100; ehci->regs = hcd->regs + 0x100 + HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); /* set up the PORTSCx register */ ehci_writel(ehci, pdata->portsc, &ehci->regs->port_status[0]); /* is this really needed? */ msleep(10); /* Initialize the transceiver */ if (pdata->otg) { pdata->otg->io_priv = hcd->regs + ULPI_VIEWPORT_OFFSET; ret = usb_phy_init(pdata->otg); if (ret) { dev_err(dev, "unable to init transceiver, probably missing\n"); ret = -ENODEV; goto err_add; } ret = otg_set_vbus(pdata->otg->otg, 1); if (ret) { dev_err(dev, "unable to enable vbus on transceiver\n"); goto err_add; } } platform_set_drvdata(pdev, hcd); ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) goto err_add; device_wakeup_enable(hcd->self.controller); return 0; err_add: if (pdata && pdata->exit) pdata->exit(pdev); err_init: if (priv->phyclk) clk_disable_unprepare(priv->phyclk); clk_disable_unprepare(priv->ahbclk); err_clk_ahb: clk_disable_unprepare(priv->usbclk); err_alloc: usb_put_hcd(hcd); return ret; } static int ehci_mxc_drv_remove(struct platform_device *pdev) { struct mxc_usbh_platform_data *pdata = dev_get_platdata(&pdev->dev); struct usb_hcd *hcd = platform_get_drvdata(pdev); struct ehci_hcd *ehci = hcd_to_ehci(hcd); struct ehci_mxc_priv *priv = (struct ehci_mxc_priv *) ehci->priv; usb_remove_hcd(hcd); if (pdata && pdata->exit) pdata->exit(pdev); if (pdata && pdata->otg) usb_phy_shutdown(pdata->otg); clk_disable_unprepare(priv->usbclk); clk_disable_unprepare(priv->ahbclk); if (priv->phyclk) clk_disable_unprepare(priv->phyclk); usb_put_hcd(hcd); return 0; } MODULE_ALIAS("platform:mxc-ehci"); static struct platform_driver ehci_mxc_driver = { .probe = ehci_mxc_drv_probe, .remove = ehci_mxc_drv_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "mxc-ehci", }, }; static int __init ehci_mxc_init(void) { if (usb_disabled()) return -ENODEV; pr_info("%s: " DRIVER_DESC "\n", hcd_name); ehci_init_driver(&ehci_mxc_hc_driver, &ehci_mxc_overrides); return platform_driver_register(&ehci_mxc_driver); } module_init(ehci_mxc_init); static void __exit ehci_mxc_cleanup(void) { platform_driver_unregister(&ehci_mxc_driver); } module_exit(ehci_mxc_cleanup); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR("Sascha Hauer"); MODULE_LICENSE("GPL"); it.cgi/linux/net-next.git/patch/drivers/usb/c67x00/c67x00.h?id=889711a03e0fba427fb85317900e93c74e3be02a'>patch) tree05af2eda6502a95cf11935cce1e9b25a1340e7ca /drivers/usb/c67x00/c67x00.h parentff1176f6164f3d151ee64c05d3f7b6662a81b982 (diff)parent7243a1af37a4dc9225004546d9d0756c529ad3ce (diff)
Merge tag 'wireless-drivers-next-for-davem-2017-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says: ==================== wireless-drivers-next patches for 4.11 It's nice to see rt2x00 development has becoming active, for example adding support for a new chip version. Also wcn36xx has been converted to use the recently merged QCOM_SMD subsystem. Otherwise new features and fixes it lots of drivers. Major changes: iwlwifi * some more work in preparation for A000 family support * add support for radiotap timestamps * some work on our firmware debugging capabilities wcn36xx * convert to a proper QCOM_SMD driver (from the platform_driver interface) ath10k * VHT160 support * dump Copy Engine registers during firmware crash * search board file extension from SMBIOS wil6210 * add disable_ap_sme module parameter rt2x00 * support RT3352 with external PA * support for RT3352 with 20MHz crystal * add support for RT5350 WiSoC brcmfmac * add support for BCM43455 sdio device rtl8xxxu * add support for D-Link DWA-131 rev E1, TP-Link TL-WN822N v4 and others ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/usb/c67x00/c67x00.h')