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 30static struct rdc321x_wdt_pdata rdc321x_wdt_pdata; 31 32static 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 41static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = { 42 .max_gpios = RDC321X_MAX_GPIO, 43}; 44 45static 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 59static 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 .driver_data = &rdc321x_wdt_pdata, 65 }, { 66 .name = "rdc321x-gpio", 67 .resources = rdc321x_gpio_resources, 68 .num_resources = ARRAY_SIZE(rdc321x_gpio_resources), 69 .driver_data = &rdc321x_gpio_pdata, 70 }, 71}; 72 73static int __devinit rdc321x_sb_probe(struct pci_dev *pdev, 74 const struct pci_device_id *ent) 75{ 76 int err; 77 78 err = pci_enable_device(pdev); 79 if (err) { 80 dev_err(&pdev->dev, "failed to enable device\n"); 81 return err; 82 } 83 84 rdc321x_gpio_pdata.sb_pdev = pdev; 85 rdc321x_wdt_pdata.sb_pdev = pdev; 86 87 return mfd_add_devices(&pdev->dev, -1, 88 rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells), NULL, 0); 89} 90 91static void __devexit rdc321x_sb_remove(struct pci_dev *pdev) 92{ 93 mfd_remove_devices(&pdev->dev); 94} 95 96static DEFINE_PCI_DEVICE_TABLE(rdc321x_sb_table) = { 97 { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) }, 98 {} 99}; 100 101static struct pci_driver rdc321x_sb_driver = { 102 .name = "RDC321x Southbridge", 103 .id_table = rdc321x_sb_table, 104 .probe = rdc321x_sb_probe, 105 .remove = __devexit_p(rdc321x_sb_remove), 106}; 107 108static int __init rdc321x_sb_init(void) 109{ 110 return pci_register_driver(&rdc321x_sb_driver); 111} 112 113static void __exit rdc321x_sb_exit(void) 114{ 115 pci_unregister_driver(&rdc321x_sb_driver); 116} 117 118module_init(rdc321x_sb_init); 119module_exit(rdc321x_sb_exit); 120 121MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); 122MODULE_LICENSE("GPL"); 123MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver"); 124