/* * SuperH EHCI host controller driver * * Copyright (C) 2010 Paul Mundt * * Based on ohci-sh.c and ehci-atmel.c. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #include #include #include struct ehci_sh_priv { struct clk *iclk, *fclk; struct usb_hcd *hcd; }; static int ehci_sh_reset(struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs; return ehci_setup(hcd); } static const struct hc_driver ehci_sh_hc_driver = { .description = hcd_name, .product_desc = "SuperH EHCI", .hcd_priv_size = sizeof(struct ehci_hcd), /* * generic hardware linkage */ .irq = ehci_irq, .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, /* * basic lifecycle operations */ .reset = ehci_sh_reset, .start = ehci_run, .stop = ehci_stop, .shutdown = ehci_shutdown, /* * 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, /* * scheduling support */ .get_frame_number = ehci_get_frame, /* * root hub support */ .hub_status_data = ehci_hub_status_data, .hub_control = ehci_hub_control, #ifdef CONFIG_PM .bus_suspend = ehci_bus_suspend, .bus_resume = ehci_bus_resume, #endif .relinquish_port = ehci_relinquish_port, .port_handed_over = ehci_port_handed_over, .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, }; static int ehci_hcd_sh_probe(struct platform_device *pdev) { struct resource *res; struct ehci_sh_priv *priv; struct ehci_sh_platdata *pdata; struct usb_hcd *hcd; int irq, ret; if (usb_disabled()) return -ENODEV; irq = platform_get_irq(pdev, 0); if (irq <= 0) { dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n", dev_name(&pdev->dev)); ret = -ENODEV; goto fail_create_hcd; } pdata = dev_get_platdata(&pdev->dev); /* initialize hcd */ hcd = usb_create_hcd(&ehci_sh_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { ret = -ENOMEM; goto fail_create_hcd; } 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 fail_request_resource; } hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); priv = devm_kzalloc(&pdev->dev, sizeof(struct ehci_sh_priv), GFP_KERNEL); if (!priv) { ret = -ENOMEM; goto fail_request_resource; } /* These are optional, we don't care if they fail */ priv->fclk = devm_clk_get(&pdev->dev, "usb_fck"); if (IS_ERR(priv->fclk)) priv->fclk = NULL; priv->iclk = devm_clk_get(&pdev->dev, "usb_ick"); if (IS_ERR(priv->iclk)) priv->iclk = NULL; clk_enable(priv->fclk); clk_enable(priv->iclk); if (pdata && pdata->phy_init) pdata->phy_init(); ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret != 0) { dev_err(&pdev->dev, "Failed to add hcd"); goto fail_add_hcd; } device_wakeup_enable(hcd->self.controller); priv->hcd = hcd; platform_set_drvdata(pdev, priv); return ret; fail_add_hcd: clk_disable(priv->iclk); clk_disable(priv->fclk); fail_request_resource: usb_put_hcd(hcd); fail_create_hcd: dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), ret); return ret; } static int ehci_hcd_sh_remove(struct platform_device *pdev) { struct ehci_sh_priv *priv = platform_get_drvdata(pdev); struct usb_hcd *hcd = priv->hcd; usb_remove_hcd(hcd); usb_put_hcd(hcd); clk_disable(priv->fclk); clk_disable(priv->iclk); return 0; } static void ehci_hcd_sh_shutdown(struct platform_device *pdev) { struct ehci_sh_priv *priv = platform_get_drvdata(pdev); struct usb_hcd *hcd = priv->hcd; if (hcd->driver->shutdown) hcd->driver->shutdown(hcd); } static struct platform_driver ehci_hcd_sh_driver = { .probe = ehci_hcd_sh_probe, .remove = ehci_hcd_sh_remove, .shutdown = ehci_hcd_sh_shutdown, .driver = { .name = "sh_ehci", }, }; MODULE_ALIAS("platform:sh_ehci"); ludemode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-01 11:52:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-01 11:52:27 -0800
commit6d04dfc8966019b8b0977b2cb942351f13d2b178 (patch)
tree2d4f239c1daff620704b77a992c1e70ce1ce6b08 /drivers/usb/storage/debug.h
parent2883aaea363f7a897ff06d2e6c73ae7aae285bcb (diff)
parent06425c308b92eaf60767bc71d359f4cbc7a561f8 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller: 1) Fix handling of interrupt status in stmmac driver. Just because we have masked the event from generating interrupts, doesn't mean the bit won't still be set in the interrupt status register. From Alexey Brodkin. 2) Fix DMA API debugging splats in gianfar driver, from Arseny Solokha. 3) Fix off-by-one error in __ip6_append_data(), from Vlad Yasevich. 4) cls_flow does not match on icmpv6 codes properly, from Simon Horman. 5) Initial MAC address can be set incorrectly in some scenerios, from Ivan Vecera. 6) Packet header pointer arithmetic fix in ip6_tnl_parse_tlv_end_lim(), from Dan Carpenter. 7) Fix divide by zero in __tcp_select_window(), from Eric Dumazet. 8) Fix crash in iwlwifi when unregistering thermal zone, from Jens Axboe. 9) Check for DMA mapping errors in starfire driver, from Alexey Khoroshilov. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (31 commits) tcp: fix 0 divide in __tcp_select_window() ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim() net: fix ndo_features_check/ndo_fix_features comment ordering net/sched: matchall: Fix configuration race be2net: fix initial MAC setting ipv6: fix flow labels when the traffic class is non-0 net: thunderx: avoid dereferencing xcv when NULL net/sched: cls_flower: Correct matching on ICMPv6 code ipv6: Paritially checksum full MTU frames net/mlx4_core: Avoid command timeouts during VF driver device shutdown gianfar: synchronize DMA API usage by free_skb_rx_queue w/ gfar_new_page net: ethtool: add support for 2500BaseT and 5000BaseT link modes can: bcm: fix hrtimer/tasklet termination in bcm op removal net: adaptec: starfire: add checks for dma mapping errors net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause can: Fix kernel panic at security_sock_rcv_skb net: macb: Fix 64 bit addressing support for GEM stmmac: Discard masked flags in interrupt status register net/mlx5e: Check ets capability before ets query FW command net/mlx5e: Fix update of hash function/key via ethtool ...
Diffstat (limited to 'drivers/usb/storage/debug.h')