usb: dwc3: pci: code cleanup
Removing a few items that are not needed anymore and adding separate function for quirks. Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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@ -31,28 +31,50 @@
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#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
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#define PCI_DEVICE_ID_INTEL_BSW 0x22B7
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struct dwc3_pci {
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struct device *dev;
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struct platform_device *dwc3;
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};
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static int dwc3_pci_quirks(struct pci_dev *pdev)
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{
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if (pdev->vendor == PCI_VENDOR_ID_AMD &&
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pdev->device == PCI_DEVICE_ID_AMD_NL_USB) {
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struct dwc3_platform_data pdata;
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memset(&pdata, 0, sizeof(pdata));
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pdata.has_lpm_erratum = true;
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pdata.lpm_nyet_threshold = 0xf;
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pdata.u2exit_lfps_quirk = true;
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pdata.u2ss_inp3_quirk = true;
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pdata.req_p1p2p3_quirk = true;
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pdata.del_p1p2p3_quirk = true;
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pdata.del_phy_power_chg_quirk = true;
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pdata.lfps_filter_quirk = true;
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pdata.rx_detect_poll_quirk = true;
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pdata.tx_de_emphasis_quirk = true;
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pdata.tx_de_emphasis = 1;
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/*
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* FIXME these quirks should be removed when AMD NL
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* taps out
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*/
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pdata.disable_scramble_quirk = true;
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pdata.dis_u3_susphy_quirk = true;
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pdata.dis_u2_susphy_quirk = true;
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return platform_device_add_data(pci_get_drvdata(pdev), &pdata,
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sizeof(pdata));
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}
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return 0;
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}
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static int dwc3_pci_probe(struct pci_dev *pci,
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const struct pci_device_id *id)
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{
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struct resource res[2];
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struct platform_device *dwc3;
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struct dwc3_pci *glue;
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int ret;
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struct device *dev = &pci->dev;
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struct dwc3_platform_data dwc3_pdata;
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memset(&dwc3_pdata, 0x00, sizeof(dwc3_pdata));
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glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
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if (!glue)
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return -ENOMEM;
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glue->dev = dev;
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ret = pcim_enable_device(pci);
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if (ret) {
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@ -79,68 +101,34 @@ static int dwc3_pci_probe(struct pci_dev *pci,
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res[1].name = "dwc_usb3";
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res[1].flags = IORESOURCE_IRQ;
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if (pci->vendor == PCI_VENDOR_ID_AMD &&
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pci->device == PCI_DEVICE_ID_AMD_NL_USB) {
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dwc3_pdata.has_lpm_erratum = true;
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dwc3_pdata.lpm_nyet_threshold = 0xf;
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dwc3_pdata.u2exit_lfps_quirk = true;
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dwc3_pdata.u2ss_inp3_quirk = true;
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dwc3_pdata.req_p1p2p3_quirk = true;
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dwc3_pdata.del_p1p2p3_quirk = true;
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dwc3_pdata.del_phy_power_chg_quirk = true;
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dwc3_pdata.lfps_filter_quirk = true;
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dwc3_pdata.rx_detect_poll_quirk = true;
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dwc3_pdata.tx_de_emphasis_quirk = true;
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dwc3_pdata.tx_de_emphasis = 1;
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/*
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* FIXME these quirks should be removed when AMD NL
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* taps out
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*/
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dwc3_pdata.disable_scramble_quirk = true;
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dwc3_pdata.dis_u3_susphy_quirk = true;
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dwc3_pdata.dis_u2_susphy_quirk = true;
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}
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ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
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if (ret) {
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dev_err(dev, "couldn't add resources to dwc3 device\n");
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return ret;
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}
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pci_set_drvdata(pci, glue);
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ret = platform_device_add_data(dwc3, &dwc3_pdata, sizeof(dwc3_pdata));
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pci_set_drvdata(pci, dwc3);
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ret = dwc3_pci_quirks(pci);
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if (ret)
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goto err3;
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goto err;
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dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
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dwc3->dev.dma_mask = dev->dma_mask;
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dwc3->dev.dma_parms = dev->dma_parms;
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dwc3->dev.parent = dev;
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glue->dwc3 = dwc3;
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ret = platform_device_add(dwc3);
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if (ret) {
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dev_err(dev, "failed to register dwc3 device\n");
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goto err3;
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goto err;
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}
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return 0;
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err3:
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err:
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platform_device_put(dwc3);
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return ret;
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}
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static void dwc3_pci_remove(struct pci_dev *pci)
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{
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struct dwc3_pci *glue = pci_get_drvdata(pci);
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platform_device_unregister(glue->dwc3);
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platform_device_unregister(pci_get_drvdata(pci));
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}
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static const struct pci_device_id dwc3_pci_id_table[] = {
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