X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fxhci-plat.c;h=feed721f9b5309ba0e71e2c8696dbeb0a9b35dc9;hb=4b31a34e0e0f8835fec2cca1f0d52275ac22b1ed;hp=8abda5c73ca1e846aaff80a2e6096dff73d04853;hpb=c2288d4d3830946d91ae7aba599d34828d07f103;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 8abda5c..feed721 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -11,13 +11,19 @@ * version 2 as published by the Free Software Foundation. */ -#include +#include +#include #include -#include #include -#include +#include +#include +#include #include "xhci.h" +#include "xhci-mvebu.h" +#include "xhci-rcar.h" + +static struct hc_driver __read_mostly xhci_plat_hc_driver; static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci) { @@ -32,72 +38,46 @@ static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci) /* called during probe() after chip reset completes */ static int xhci_plat_setup(struct usb_hcd *hcd) { + struct device_node *of_node = hcd->self.controller->of_node; + int ret; + + if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") || + of_device_is_compatible(of_node, "renesas,xhci-r8a7791")) { + ret = xhci_rcar_init_quirk(hcd); + if (ret) + return ret; + } + return xhci_gen_setup(hcd, xhci_plat_quirks); } -static const struct hc_driver xhci_plat_xhci_driver = { - .description = "xhci-hcd", - .product_desc = "xHCI Host Controller", - .hcd_priv_size = sizeof(struct xhci_hcd *), - - /* - * generic hardware linkage - */ - .irq = xhci_irq, - .flags = HCD_MEMORY | HCD_USB3 | HCD_SHARED, - - /* - * basic lifecycle operations - */ - .reset = xhci_plat_setup, - .start = xhci_run, - .stop = xhci_stop, - .shutdown = xhci_shutdown, +static int xhci_plat_start(struct usb_hcd *hcd) +{ + struct device_node *of_node = hcd->self.controller->of_node; - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = xhci_urb_enqueue, - .urb_dequeue = xhci_urb_dequeue, - .alloc_dev = xhci_alloc_dev, - .free_dev = xhci_free_dev, - .alloc_streams = xhci_alloc_streams, - .free_streams = xhci_free_streams, - .add_endpoint = xhci_add_endpoint, - .drop_endpoint = xhci_drop_endpoint, - .endpoint_reset = xhci_endpoint_reset, - .check_bandwidth = xhci_check_bandwidth, - .reset_bandwidth = xhci_reset_bandwidth, - .address_device = xhci_address_device, - .enable_device = xhci_enable_device, - .update_hub_device = xhci_update_hub_device, - .reset_device = xhci_discover_or_reset_device, + if (of_device_is_compatible(of_node, "renesas,xhci-r8a7790") || + of_device_is_compatible(of_node, "renesas,xhci-r8a7791")) + xhci_rcar_start(hcd); - /* - * scheduling support - */ - .get_frame_number = xhci_get_frame, - - /* Root hub support */ - .hub_control = xhci_hub_control, - .hub_status_data = xhci_hub_status_data, - .bus_suspend = xhci_bus_suspend, - .bus_resume = xhci_bus_resume, -}; + return xhci_run(hcd); +} static int xhci_plat_probe(struct platform_device *pdev) { + struct device_node *node = pdev->dev.of_node; + struct usb_xhci_pdata *pdata = dev_get_platdata(&pdev->dev); const struct hc_driver *driver; struct xhci_hcd *xhci; struct resource *res; struct usb_hcd *hcd; + struct clk *clk; int ret; int irq; if (usb_disabled()) return -ENODEV; - driver = &xhci_plat_xhci_driver; + driver = &xhci_plat_hc_driver; irq = platform_get_irq(pdev, 0); if (irq < 0) @@ -107,6 +87,15 @@ static int xhci_plat_probe(struct platform_device *pdev) if (!res) return -ENODEV; + if (of_device_is_compatible(pdev->dev.of_node, + "marvell,armada-375-xhci") || + of_device_is_compatible(pdev->dev.of_node, + "marvell,armada-380-xhci")) { + ret = xhci_mvebu_mbus_init_quirk(pdev); + if (ret) + return ret; + } + /* Initialize dma_mask and coherent_dma_mask to 32-bits */ ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); if (ret) @@ -123,28 +112,33 @@ static int xhci_plat_probe(struct platform_device *pdev) hcd->rsrc_start = res->start; hcd->rsrc_len = resource_size(res); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, - driver->description)) { - dev_dbg(&pdev->dev, "controller already in use\n"); - ret = -EBUSY; + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + ret = PTR_ERR(hcd->regs); goto put_hcd; } - hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - dev_dbg(&pdev->dev, "error mapping memory\n"); - ret = -EFAULT; - goto release_mem_region; + /* + * Not all platforms have a clk so it is not an error if the + * clock does not exists. + */ + clk = devm_clk_get(&pdev->dev, NULL); + if (!IS_ERR(clk)) { + ret = clk_prepare_enable(clk); + if (ret) + goto put_hcd; } ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) - goto unmap_registers; + 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->shared_hcd = usb_create_shared_hcd(driver, &pdev->dev, dev_name(&pdev->dev), hcd); if (!xhci->shared_hcd) { @@ -152,6 +146,9 @@ static int xhci_plat_probe(struct platform_device *pdev) goto dealloc_usb2_hcd; } + 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(). @@ -170,11 +167,9 @@ put_usb3_hcd: dealloc_usb2_hcd: usb_remove_hcd(hcd); -unmap_registers: - iounmap(hcd->regs); - -release_mem_region: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +disable_clk: + if (!IS_ERR(clk)) + clk_disable_unprepare(clk); put_hcd: usb_put_hcd(hcd); @@ -186,20 +181,21 @@ static int xhci_plat_remove(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); struct xhci_hcd *xhci = hcd_to_xhci(hcd); + struct clk *clk = xhci->clk; usb_remove_hcd(xhci->shared_hcd); usb_put_hcd(xhci->shared_hcd); usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + if (!IS_ERR(clk)) + clk_disable_unprepare(clk); usb_put_hcd(hcd); kfree(xhci); return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int xhci_plat_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); @@ -226,7 +222,12 @@ static const struct dev_pm_ops xhci_plat_pm_ops = { #ifdef CONFIG_OF static const struct of_device_id usb_xhci_of_match[] = { + { .compatible = "generic-xhci" }, { .compatible = "xhci-platform" }, + { .compatible = "marvell,armada-375-xhci"}, + { .compatible = "marvell,armada-380-xhci"}, + { .compatible = "renesas,xhci-r8a7790"}, + { .compatible = "renesas,xhci-r8a7791"}, { }, }; MODULE_DEVICE_TABLE(of, usb_xhci_of_match); @@ -245,6 +246,8 @@ MODULE_ALIAS("platform:xhci-hcd"); int xhci_register_plat(void) { + xhci_init_driver(&xhci_plat_hc_driver, xhci_plat_setup); + xhci_plat_hc_driver.start = xhci_plat_start; return platform_driver_register(&usb_xhci_driver); }