pdata和isys的联系(一)

static void (struct pci_dev *pci_dev)
{
    pci_dev->dev.platform_data = &pdata;
}

DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, INTEL_IPU4_HW_BXT_P,
            ipu4_quirk);

static const struct pci_device_id intel_ipu4_pci_tbl[] = {
    {PCI_DEVICE(PCI_VENDOR_ID_INTEL, INTEL_IPU4_HW_BXT_B0)},
    {PCI_DEVICE(PCI_VENDOR_ID_INTEL, INTEL_IPU4_HW_BXT_P)},
    {0,}
};

static struct pci_driver intel_ipu4_pci_driver = {
    .name = INTEL_IPU4_NAME,
    .id_table = intel_ipu4_pci_tbl,
    .probe = intel_ipu4_pci_probe,
};

static int intel_ipu4_pci_probe(struct pci_dev *pdev,
			     const struct pci_device_id *id)
{
    isp->isys = intel_ipu4_isys_init(
            pdev, &isp->isys_iommu->dev, &isp->isys_iommu->dev,
            isys_base, isys_ipdata,
            pdev->dev.platform_data,
            0, is_intel_ipu_hw_fpga(isp) ?
            INTEL_IPU4_ISYS_TYPE_INTEL_IPU4_FPGA :
            INTEL_IPU4_ISYS_TYPE_INTEL_IPU4);
        return intel_ipu4_bus_add_device(pdev, parent, pdata, iommu, NULL,
                     INTEL_IPU4_ISYS_NAME, nr);
}

static struct intel_ipu4_bus_driver isys_driver = {
    .probe = isys_probe,
    .wanted = INTEL_IPU4_ISYS_NAME,
    .drv = {
        .name = INTEL_IPU4_ISYS_NAME,
    },
};