1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * RDC321x MFD southbridge driver 4 * 5 * Copyright (C) 2007-2010 Florian Fainelli <florian@openwrt.org> 6 * Copyright (C) 2010 Bernhard Loos <bernhardloos@googlemail.com> 7 */ 8 #include <linux/module.h> 9 #include <linux/kernel.h> 10 #include <linux/platform_device.h> 11 #include <linux/pci.h> 12 #include <linux/mfd/core.h> 13 #include <linux/mfd/rdc321x.h> 14 15 static struct rdc321x_wdt_pdata rdc321x_wdt_pdata; 16 17 static struct resource rdc321x_wdt_resource[] = { 18 { 19 .name = "wdt-reg", 20 .start = RDC321X_WDT_CTRL, 21 .end = RDC321X_WDT_CTRL + 0x3, 22 .flags = IORESOURCE_IO, 23 } 24 }; 25 26 static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = { 27 .max_gpios = RDC321X_NUM_GPIO, 28 }; 29 30 static struct resource rdc321x_gpio_resources[] = { 31 { 32 .name = "gpio-reg1", 33 .start = RDC321X_GPIO_CTRL_REG1, 34 .end = RDC321X_GPIO_CTRL_REG1 + 0x7, 35 .flags = IORESOURCE_IO, 36 }, { 37 .name = "gpio-reg2", 38 .start = RDC321X_GPIO_CTRL_REG2, 39 .end = RDC321X_GPIO_CTRL_REG2 + 0x7, 40 .flags = IORESOURCE_IO, 41 } 42 }; 43 44 static const struct mfd_cell rdc321x_sb_cells[] = { 45 { 46 .name = "rdc321x-wdt", 47 .resources = rdc321x_wdt_resource, 48 .num_resources = ARRAY_SIZE(rdc321x_wdt_resource), 49 .platform_data = &rdc321x_wdt_pdata, 50 .pdata_size = sizeof(rdc321x_wdt_pdata), 51 }, { 52 .name = "rdc321x-gpio", 53 .resources = rdc321x_gpio_resources, 54 .num_resources = ARRAY_SIZE(rdc321x_gpio_resources), 55 .platform_data = &rdc321x_gpio_pdata, 56 .pdata_size = sizeof(rdc321x_gpio_pdata), 57 }, 58 }; 59 60 static int rdc321x_sb_probe(struct pci_dev *pdev, 61 const struct pci_device_id *ent) 62 { 63 int err; 64 65 err = pci_enable_device(pdev); 66 if (err) { 67 dev_err(&pdev->dev, "failed to enable device\n"); 68 return err; 69 } 70 71 rdc321x_gpio_pdata.sb_pdev = pdev; 72 rdc321x_wdt_pdata.sb_pdev = pdev; 73 74 return devm_mfd_add_devices(&pdev->dev, -1, 75 rdc321x_sb_cells, 76 ARRAY_SIZE(rdc321x_sb_cells), 77 NULL, 0, NULL); 78 } 79 80 static const struct pci_device_id rdc321x_sb_table[] = { 81 { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) }, 82 {} 83 }; 84 MODULE_DEVICE_TABLE(pci, rdc321x_sb_table); 85 86 static struct pci_driver rdc321x_sb_driver = { 87 .name = "RDC321x Southbridge", 88 .id_table = rdc321x_sb_table, 89 .probe = rdc321x_sb_probe, 90 }; 91 92 module_pci_driver(rdc321x_sb_driver); 93 94 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); 95 MODULE_LICENSE("GPL"); 96 MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver"); 97