diff options
Diffstat (limited to 'drivers/fpga/dfl-pci.c')
| -rw-r--r-- | drivers/fpga/dfl-pci.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/fpga/dfl-pci.c b/drivers/fpga/dfl-pci.c index e220bec2927d..a2203d03c9e2 100644 --- a/drivers/fpga/dfl-pci.c +++ b/drivers/fpga/dfl-pci.c @@ -31,12 +31,12 @@ struct cci_drvdata { struct dfl_fpga_cdev *cdev; /* container device */ }; -static void __iomem *cci_pci_ioremap_bar(struct pci_dev *pcidev, int bar) +static void __iomem *cci_pci_ioremap_bar0(struct pci_dev *pcidev) { - if (pcim_iomap_regions(pcidev, BIT(bar), DRV_NAME)) + if (pcim_iomap_regions(pcidev, BIT(0), DRV_NAME)) return NULL; - return pcim_iomap_table(pcidev)[bar]; + return pcim_iomap_table(pcidev)[0]; } static int cci_pci_alloc_irq(struct pci_dev *pcidev) @@ -156,8 +156,8 @@ static int cci_enumerate_feature_devs(struct pci_dev *pcidev) goto irq_free_exit; } - /* start to find Device Feature List from Bar 0 */ - base = cci_pci_ioremap_bar(pcidev, 0); + /* start to find Device Feature List in Bar 0 */ + base = cci_pci_ioremap_bar0(pcidev); if (!base) { ret = -ENOMEM; goto irq_free_exit; @@ -172,7 +172,7 @@ static int cci_enumerate_feature_devs(struct pci_dev *pcidev) start = pci_resource_start(pcidev, 0); len = pci_resource_len(pcidev, 0); - dfl_fpga_enum_info_add_dfl(info, start, len, base); + dfl_fpga_enum_info_add_dfl(info, start, len); /* * find more Device Feature Lists (e.g. Ports) per information @@ -196,26 +196,24 @@ static int cci_enumerate_feature_devs(struct pci_dev *pcidev) */ bar = FIELD_GET(FME_PORT_OFST_BAR_ID, v); offset = FIELD_GET(FME_PORT_OFST_DFH_OFST, v); - base = cci_pci_ioremap_bar(pcidev, bar); - if (!base) - continue; - start = pci_resource_start(pcidev, bar) + offset; len = pci_resource_len(pcidev, bar) - offset; - dfl_fpga_enum_info_add_dfl(info, start, len, - base + offset); + dfl_fpga_enum_info_add_dfl(info, start, len); } } else if (dfl_feature_is_port(base)) { start = pci_resource_start(pcidev, 0); len = pci_resource_len(pcidev, 0); - dfl_fpga_enum_info_add_dfl(info, start, len, base); + dfl_fpga_enum_info_add_dfl(info, start, len); } else { ret = -ENODEV; goto irq_free_exit; } + /* release I/O mappings for next step enumeration */ + pcim_iounmap_regions(pcidev, BIT(0)); + /* start enumeration with prepared enumeration information */ cdev = dfl_fpga_feature_devs_enumerate(info); if (IS_ERR(cdev)) { |