diff options
Diffstat (limited to 'drivers/usb/dwc2/pci.c')
| -rw-r--r-- | drivers/usb/dwc2/pci.c | 160 |
1 files changed, 72 insertions, 88 deletions
diff --git a/drivers/usb/dwc2/pci.c b/drivers/usb/dwc2/pci.c index a4e724b0a62e..ae419615a176 100644 --- a/drivers/usb/dwc2/pci.c +++ b/drivers/usb/dwc2/pci.c @@ -50,113 +50,97 @@ #include <linux/usb/hcd.h> #include <linux/usb/ch11.h> +#include <linux/platform_device.h> +#include <linux/usb/usb_phy_generic.h> -#include "core.h" -#include "hcd.h" - -#define PCI_VENDOR_ID_SYNOPSYS 0x16c3 #define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0 -static const char dwc2_driver_name[] = "dwc2"; - -static const struct dwc2_core_params dwc2_module_params = { - .otg_cap = -1, - .otg_ver = -1, - .dma_enable = -1, - .dma_desc_enable = 0, - .speed = -1, - .enable_dynamic_fifo = -1, - .en_multiple_tx_fifo = -1, - .host_rx_fifo_size = 1024, - .host_nperio_tx_fifo_size = 256, - .host_perio_tx_fifo_size = 1024, - .max_transfer_size = 65535, - .max_packet_count = 511, - .host_channels = -1, - .phy_type = -1, - .phy_utmi_width = -1, - .phy_ulpi_ddr = -1, - .phy_ulpi_ext_vbus = -1, - .i2c_enable = -1, - .ulpi_fs_ls = -1, - .host_support_fs_ls_low_power = -1, - .host_ls_low_power_phy_clk = -1, - .ts_dline = -1, - .reload_ctl = -1, - .ahbcfg = -1, - .uframe_sched = -1, +static const char dwc2_driver_name[] = "dwc2-pci"; + +struct dwc2_pci_glue { + struct platform_device *dwc2; + struct platform_device *phy; }; -/** - * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the - * DWC_otg driver - * - * @dev: Bus device - * - * This routine is called, for example, when the rmmod command is executed. The - * device may or may not be electrically present. If it is present, the driver - * stops device processing. Any resources used on behalf of this device are - * freed. - */ -static void dwc2_driver_remove(struct pci_dev *dev) +static void dwc2_pci_remove(struct pci_dev *pci) { - struct dwc2_hsotg *hsotg = pci_get_drvdata(dev); + struct dwc2_pci_glue *glue = pci_get_drvdata(pci); - dwc2_hcd_remove(hsotg); - pci_disable_device(dev); + platform_device_unregister(glue->dwc2); + usb_phy_generic_unregister(glue->phy); + kfree(glue); + pci_set_drvdata(pci, NULL); } -/** - * dwc2_driver_probe() - Called when the DWC_otg core is bound to the DWC_otg - * driver - * - * @dev: Bus device - * - * This routine creates the driver components required to control the device - * (core, HCD, and PCD) and initializes the device. The driver components are - * stored in a dwc2_hsotg structure. A reference to the dwc2_hsotg is saved - * in the device private data. This allows the driver to access the dwc2_hsotg - * structure on subsequent calls to driver methods for this device. - */ -static int dwc2_driver_probe(struct pci_dev *dev, - const struct pci_device_id *id) +static int dwc2_pci_probe(struct pci_dev *pci, + const struct pci_device_id *id) { - struct dwc2_hsotg *hsotg; - int retval; + struct resource res[2]; + struct platform_device *dwc2; + struct platform_device *phy; + int ret; + struct device *dev = &pci->dev; + struct dwc2_pci_glue *glue; + + ret = pcim_enable_device(pci); + if (ret) { + dev_err(dev, "failed to enable pci device\n"); + return -ENODEV; + } + + pci_set_master(pci); - hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL); - if (!hsotg) + dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO); + if (!dwc2) { + dev_err(dev, "couldn't allocate dwc2 device\n"); return -ENOMEM; + } - hsotg->dev = &dev->dev; - hsotg->regs = devm_ioremap_resource(&dev->dev, &dev->resource[0]); - if (IS_ERR(hsotg->regs)) - return PTR_ERR(hsotg->regs); + memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); - dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n", - (unsigned long)pci_resource_start(dev, 0), hsotg->regs); + res[0].start = pci_resource_start(pci, 0); + res[0].end = pci_resource_end(pci, 0); + res[0].name = "dwc2"; + res[0].flags = IORESOURCE_MEM; - if (pci_enable_device(dev) < 0) - return -ENODEV; + res[1].start = pci->irq; + res[1].name = "dwc2"; + res[1].flags = IORESOURCE_IRQ; - pci_set_master(dev); + ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res)); + if (ret) { + dev_err(dev, "couldn't add resources to dwc2 device\n"); + return ret; + } - retval = devm_request_irq(hsotg->dev, dev->irq, - dwc2_handle_common_intr, IRQF_SHARED, - dev_name(hsotg->dev), hsotg); - if (retval) - return retval; + dwc2->dev.parent = dev; - spin_lock_init(&hsotg->lock); - retval = dwc2_hcd_init(hsotg, dev->irq, &dwc2_module_params); - if (retval) { - pci_disable_device(dev); - return retval; + phy = usb_phy_generic_register(); + if (IS_ERR(phy)) { + dev_err(dev, "error registering generic PHY (%ld)\n", + PTR_ERR(phy)); + return PTR_ERR(phy); } - pci_set_drvdata(dev, hsotg); + ret = platform_device_add(dwc2); + if (ret) { + dev_err(dev, "failed to register dwc2 device\n"); + goto err; + } + + glue = kzalloc(sizeof(*glue), GFP_KERNEL); + if (!glue) + return -ENOMEM; + + glue->phy = phy; + glue->dwc2 = dwc2; + pci_set_drvdata(pci, glue); - return retval; + return 0; +err: + usb_phy_generic_unregister(phy); + platform_device_put(dwc2); + return ret; } static const struct pci_device_id dwc2_pci_ids[] = { @@ -174,8 +158,8 @@ MODULE_DEVICE_TABLE(pci, dwc2_pci_ids); static struct pci_driver dwc2_pci_driver = { .name = dwc2_driver_name, .id_table = dwc2_pci_ids, - .probe = dwc2_driver_probe, - .remove = dwc2_driver_remove, + .probe = dwc2_pci_probe, + .remove = dwc2_pci_remove, }; module_pci_driver(dwc2_pci_driver); |