diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/dwc3/dwc3-pci.c | 96 |
1 files changed, 42 insertions, 54 deletions
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 5c471d2fe732..5f5fa98f399d 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -31,28 +31,50 @@ #define PCI_DEVICE_ID_INTEL_MRFLD 0x119e #define PCI_DEVICE_ID_INTEL_BSW 0x22B7 -struct dwc3_pci { - struct device *dev; - struct platform_device *dwc3; -}; +static int dwc3_pci_quirks(struct pci_dev *pdev) +{ + if (pdev->vendor == PCI_VENDOR_ID_AMD && + pdev->device == PCI_DEVICE_ID_AMD_NL_USB) { + struct dwc3_platform_data pdata; + + memset(&pdata, 0, sizeof(pdata)); + + pdata.has_lpm_erratum = true; + pdata.lpm_nyet_threshold = 0xf; + + pdata.u2exit_lfps_quirk = true; + pdata.u2ss_inp3_quirk = true; + pdata.req_p1p2p3_quirk = true; + pdata.del_p1p2p3_quirk = true; + pdata.del_phy_power_chg_quirk = true; + pdata.lfps_filter_quirk = true; + pdata.rx_detect_poll_quirk = true; + + pdata.tx_de_emphasis_quirk = true; + pdata.tx_de_emphasis = 1; + + /* + * FIXME these quirks should be removed when AMD NL + * taps out + */ + pdata.disable_scramble_quirk = true; + pdata.dis_u3_susphy_quirk = true; + pdata.dis_u2_susphy_quirk = true; + + return platform_device_add_data(pci_get_drvdata(pdev), &pdata, + sizeof(pdata)); + } + + return 0; +} static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) { struct resource res[2]; struct platform_device *dwc3; - struct dwc3_pci *glue; int ret; struct device *dev = &pci->dev; - struct dwc3_platform_data dwc3_pdata; - - memset(&dwc3_pdata, 0x00, sizeof(dwc3_pdata)); - - glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL); - if (!glue) - return -ENOMEM; - - glue->dev = dev; ret = pcim_enable_device(pci); if (ret) { @@ -79,68 +101,34 @@ static int dwc3_pci_probe(struct pci_dev *pci, res[1].name = "dwc_usb3"; res[1].flags = IORESOURCE_IRQ; - if (pci->vendor == PCI_VENDOR_ID_AMD && - pci->device == PCI_DEVICE_ID_AMD_NL_USB) { - dwc3_pdata.has_lpm_erratum = true; - dwc3_pdata.lpm_nyet_threshold = 0xf; - - dwc3_pdata.u2exit_lfps_quirk = true; - dwc3_pdata.u2ss_inp3_quirk = true; - dwc3_pdata.req_p1p2p3_quirk = true; - dwc3_pdata.del_p1p2p3_quirk = true; - dwc3_pdata.del_phy_power_chg_quirk = true; - dwc3_pdata.lfps_filter_quirk = true; - dwc3_pdata.rx_detect_poll_quirk = true; - - dwc3_pdata.tx_de_emphasis_quirk = true; - dwc3_pdata.tx_de_emphasis = 1; - - /* - * FIXME these quirks should be removed when AMD NL - * taps out - */ - dwc3_pdata.disable_scramble_quirk = true; - dwc3_pdata.dis_u3_susphy_quirk = true; - dwc3_pdata.dis_u2_susphy_quirk = true; - } - ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); if (ret) { dev_err(dev, "couldn't add resources to dwc3 device\n"); return ret; } - pci_set_drvdata(pci, glue); - - ret = platform_device_add_data(dwc3, &dwc3_pdata, sizeof(dwc3_pdata)); + pci_set_drvdata(pci, dwc3); + ret = dwc3_pci_quirks(pci); if (ret) - goto err3; - - dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask); + goto err; - dwc3->dev.dma_mask = dev->dma_mask; - dwc3->dev.dma_parms = dev->dma_parms; dwc3->dev.parent = dev; - glue->dwc3 = dwc3; ret = platform_device_add(dwc3); if (ret) { dev_err(dev, "failed to register dwc3 device\n"); - goto err3; + goto err; } return 0; - -err3: +err: platform_device_put(dwc3); return ret; } static void dwc3_pci_remove(struct pci_dev *pci) { - struct dwc3_pci *glue = pci_get_drvdata(pci); - - platform_device_unregister(glue->dwc3); + platform_device_unregister(pci_get_drvdata(pci)); } static const struct pci_device_id dwc3_pci_id_table[] = { |