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> 8 #include <linux/module.h> 9 #include <linux/spi/pxa2xx_spi.h> 10 11 static int ce4100_spi_probe(struct pci_dev *dev, 12 const struct pci_device_id *ent) 13 { 14 struct platform_device_info pi; 15 int ret; 16 struct platform_device *pdev; 17 struct pxa2xx_spi_master spi_pdata; 18 struct ssp_device *ssp; 19 20 ret = pcim_enable_device(dev); 21 if (ret) 22 return ret; 23 24 ret = pcim_iomap_regions(dev, 1 << 0, "PXA2xx SPI"); 25 if (ret) 26 return ret; 27 28 memset(&spi_pdata, 0, sizeof(spi_pdata)); 29 spi_pdata.num_chipselect = dev->devfn; 30 31 ssp = &spi_pdata.ssp; 32 ssp->phys_base = pci_resource_start(dev, 0); 33 ssp->mmio_base = pcim_iomap_table(dev)[0]; 34 if (!ssp->mmio_base) { 35 dev_err(&dev->dev, "failed to ioremap() registers\n"); 36 return -EIO; 37 } 38 ssp->irq = dev->irq; 39 ssp->port_id = dev->devfn; 40 ssp->type = PXA25x_SSP; 41 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); 48 49 pdev = platform_device_register_full(&pi); 50 if (IS_ERR(pdev)) 51 return PTR_ERR(pdev); 52 53 pci_set_drvdata(dev, pdev); 54 55 return 0; 56 } 57 58 static void ce4100_spi_remove(struct pci_dev *dev) 59 { 60 struct platform_device *pdev = pci_get_drvdata(dev); 61 62 platform_device_unregister(pdev); 63 } 64 65 static DEFINE_PCI_DEVICE_TABLE(ce4100_spi_devices) = { 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, 75 .remove = ce4100_spi_remove, 76 }; 77 78 module_pci_driver(ce4100_spi_driver); 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>"); 83