1 /* 2 * RDC321x MFD southbrige driver 3 * 4 * Copyright (C) 2007-2010 Florian Fainelli <florian@openwrt.org> 5 * Copyright (C) 2010 Bernhard Loos <bernhardloos@googlemail.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * 21 */ 22 #include <linux/init.h> 23 #include <linux/module.h> 24 #include <linux/kernel.h> 25 #include <linux/platform_device.h> 26 #include <linux/pci.h> 27 #include <linux/mfd/core.h> 28 #include <linux/mfd/rdc321x.h> 29 30 static struct rdc321x_wdt_pdata rdc321x_wdt_pdata; 31 32 static struct resource rdc321x_wdt_resource[] = { 33 { 34 .name = "wdt-reg", 35 .start = RDC321X_WDT_CTRL, 36 .end = RDC321X_WDT_CTRL + 0x3, 37 .flags = IORESOURCE_IO, 38 } 39 }; 40 41 static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = { 42 .max_gpios = RDC321X_MAX_GPIO, 43 }; 44 45 static struct resource rdc321x_gpio_resources[] = { 46 { 47 .name = "gpio-reg1", 48 .start = RDC321X_GPIO_CTRL_REG1, 49 .end = RDC321X_GPIO_CTRL_REG1 + 0x7, 50 .flags = IORESOURCE_IO, 51 }, { 52 .name = "gpio-reg2", 53 .start = RDC321X_GPIO_CTRL_REG2, 54 .end = RDC321X_GPIO_CTRL_REG2 + 0x7, 55 .flags = IORESOURCE_IO, 56 } 57 }; 58 59 static struct mfd_cell rdc321x_sb_cells[] = { 60 { 61 .name = "rdc321x-wdt", 62 .resources = rdc321x_wdt_resource, 63 .num_resources = ARRAY_SIZE(rdc321x_wdt_resource), 64 .platform_data = &rdc321x_wdt_pdata, 65 .pdata_size = sizeof(rdc321x_wdt_pdata), 66 }, { 67 .name = "rdc321x-gpio", 68 .resources = rdc321x_gpio_resources, 69 .num_resources = ARRAY_SIZE(rdc321x_gpio_resources), 70 .platform_data = &rdc321x_gpio_pdata, 71 .pdata_size = sizeof(rdc321x_gpio_pdata), 72 }, 73 }; 74 75 static int __devinit rdc321x_sb_probe(struct pci_dev *pdev, 76 const struct pci_device_id *ent) 77 { 78 int err; 79 80 err = pci_enable_device(pdev); 81 if (err) { 82 dev_err(&pdev->dev, "failed to enable device\n"); 83 return err; 84 } 85 86 rdc321x_gpio_pdata.sb_pdev = pdev; 87 rdc321x_wdt_pdata.sb_pdev = pdev; 88 89 return mfd_add_devices(&pdev->dev, -1, 90 rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells), NULL, 0); 91 } 92 93 static void __devexit rdc321x_sb_remove(struct pci_dev *pdev) 94 { 95 mfd_remove_devices(&pdev->dev); 96 } 97 98 static DEFINE_PCI_DEVICE_TABLE(rdc321x_sb_table) = { 99 { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) }, 100 {} 101 }; 102 MODULE_DEVICE_TABLE(pci, rdc321x_sb_table); 103 104 static struct pci_driver rdc321x_sb_driver = { 105 .name = "RDC321x Southbridge", 106 .id_table = rdc321x_sb_table, 107 .probe = rdc321x_sb_probe, 108 .remove = __devexit_p(rdc321x_sb_remove), 109 }; 110 111 static int __init rdc321x_sb_init(void) 112 { 113 return pci_register_driver(&rdc321x_sb_driver); 114 } 115 116 static void __exit rdc321x_sb_exit(void) 117 { 118 pci_unregister_driver(&rdc321x_sb_driver); 119 } 120 121 module_init(rdc321x_sb_init); 122 module_exit(rdc321x_sb_exit); 123 124 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); 125 MODULE_LICENSE("GPL"); 126 MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver"); 127