projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| d6ea3df0 SAS |
1 | /* |
| 2 | * CE4100's SPI device is more or less the same one as found on PXA | |
| 3 | * | |
| 4 | */ | |
| 5 | #include <linux/pci.h> | |
| 6 | #include <linux/platform_device.h> | |
| 7 | #include <linux/of_device.h> | |
| d7614de4 | 8 | #include <linux/module.h> |
| d6ea3df0 SAS |
9 | #include <linux/spi/pxa2xx_spi.h> |
| 10 | ||
| fd4a319b | 11 | static int ce4100_spi_probe(struct pci_dev *dev, |
| d6ea3df0 SAS |
12 | const struct pci_device_id *ent) |
| 13 | { | |
| 0202775b | 14 | struct platform_device_info pi; |
| d6ea3df0 | 15 | int ret; |
| d6ea3df0 | 16 | struct platform_device *pdev; |
| 0f3e1d27 | 17 | struct pxa2xx_spi_master spi_pdata; |
| d6ea3df0 SAS |
18 | struct ssp_device *ssp; |
| 19 | ||
| 0202775b | 20 | ret = pcim_enable_device(dev); |
| d6ea3df0 SAS |
21 | if (ret) |
| 22 | return ret; | |
| 23 | ||
| 0202775b | 24 | ret = pcim_iomap_regions(dev, 1 << 0, "PXA2xx SPI"); |
| c1346340 | 25 | if (ret) |
| d6ea3df0 | 26 | return ret; |
| d6ea3df0 | 27 | |
| 0f3e1d27 SAS |
28 | memset(&spi_pdata, 0, sizeof(spi_pdata)); |
| 29 | spi_pdata.num_chipselect = dev->devfn; | |
| d6ea3df0 | 30 | |
| 851bacf5 | 31 | ssp = &spi_pdata.ssp; |
| d6ea3df0 | 32 | ssp->phys_base = pci_resource_start(dev, 0); |
| 0202775b | 33 | ssp->mmio_base = pcim_iomap_table(dev)[0]; |
| d6ea3df0 | 34 | if (!ssp->mmio_base) { |
| 0202775b MW |
35 | dev_err(&dev->dev, "failed to ioremap() registers\n"); |
| 36 | return -EIO; | |
| d6ea3df0 SAS |
37 | } |
| 38 | ssp->irq = dev->irq; | |
| 0202775b | 39 | ssp->port_id = dev->devfn; |
| d6ea3df0 SAS |
40 | ssp->type = PXA25x_SSP; |
| 41 | ||
| 0202775b MW |
42 | memset(&pi, 0, sizeof(pi)); |
| 43 | pi.parent = &dev->dev; | |
| 44 | pi.name = "pxa2xx-spi"; | |
| 45 | pi.id = ssp->port_id; | |
| 46 | pi.data = &spi_pdata; | |
| 47 | pi.size_data = sizeof(spi_pdata); | |
| d6ea3df0 | 48 | |
| 0202775b | 49 | pdev = platform_device_register_full(&pi); |
| d77b5382 WY |
50 | if (IS_ERR(pdev)) |
| 51 | return PTR_ERR(pdev); | |
| d6ea3df0 | 52 | |
| 851bacf5 | 53 | pci_set_drvdata(dev, pdev); |
| d6ea3df0 | 54 | |
| 0202775b | 55 | return 0; |
| d6ea3df0 SAS |
56 | } |
| 57 | ||
| fd4a319b | 58 | static void ce4100_spi_remove(struct pci_dev *dev) |
| d6ea3df0 | 59 | { |
| 851bacf5 | 60 | struct platform_device *pdev = pci_get_drvdata(dev); |
| d6ea3df0 | 61 | |
| 851bacf5 | 62 | platform_device_unregister(pdev); |
| d6ea3df0 SAS |
63 | } |
| 64 | ||
| e290cf27 | 65 | static DEFINE_PCI_DEVICE_TABLE(ce4100_spi_devices) = { |
| d6ea3df0 SAS |
66 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2e6a) }, |
| 67 | { }, | |
| 68 | }; | |
| 69 | MODULE_DEVICE_TABLE(pci, ce4100_spi_devices); | |
| 70 | ||
| 71 | static struct pci_driver ce4100_spi_driver = { | |
| 72 | .name = "ce4100_spi", | |
| 73 | .id_table = ce4100_spi_devices, | |
| 74 | .probe = ce4100_spi_probe, | |
| fd4a319b | 75 | .remove = ce4100_spi_remove, |
| d6ea3df0 SAS |
76 | }; |
| 77 | ||
| 8ebb35fd | 78 | module_pci_driver(ce4100_spi_driver); |
| d6ea3df0 SAS |
79 | |
| 80 | MODULE_DESCRIPTION("CE4100 PCI-SPI glue code for PXA's driver"); | |
| 81 | MODULE_LICENSE("GPL v2"); | |
| 82 | MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>"); |