1 /* 2 * RDC321x MFD southbridge 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/module.h> 23 #include <linux/kernel.h> 24 #include <linux/platform_device.h> 25 #include <linux/pci.h> 26 #include <linux/mfd/core.h> 27 #include <linux/mfd/rdc321x.h> 28 29 static struct rdc321x_wdt_pdata rdc321x_wdt_pdata; 30 31 static struct resource rdc321x_wdt_resource[] = { 32 { 33 .name = "wdt-reg", 34 .start = RDC321X_WDT_CTRL, 35 .end = RDC321X_WDT_CTRL + 0x3, 36 .flags = IORESOURCE_IO, 37 } 38 }; 39 40 static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = { 41 .max_gpios = RDC321X_NUM_GPIO, 42 }; 43 44 static struct resource rdc321x_gpio_resources[] = { 45 { 46 .name = "gpio-reg1", 47 .start = RDC321X_GPIO_CTRL_REG1, 48 .end = RDC321X_GPIO_CTRL_REG1 + 0x7, 49 .flags = IORESOURCE_IO, 50 }, { 51 .name = "gpio-reg2", 52 .start = RDC321X_GPIO_CTRL_REG2, 53 .end = RDC321X_GPIO_CTRL_REG2 + 0x7, 54 .flags = IORESOURCE_IO, 55 } 56 }; 57 58 static const struct mfd_cell rdc321x_sb_cells[] = { 59 { 60 .name = "rdc321x-wdt", 61 .resources = rdc321x_wdt_resource, 62 .num_resources = ARRAY_SIZE(rdc321x_wdt_resource), 63 .platform_data = &rdc321x_wdt_pdata, 64 .pdata_size = sizeof(rdc321x_wdt_pdata), 65 }, { 66 .name = "rdc321x-gpio", 67 .resources = rdc321x_gpio_resources, 68 .num_resources = ARRAY_SIZE(rdc321x_gpio_resources), 69 .platform_data = &rdc321x_gpio_pdata, 70 .pdata_size = sizeof(rdc321x_gpio_pdata), 71 }, 72 }; 73 74 static int rdc321x_sb_probe(struct pci_dev *pdev, 75 const struct pci_device_id *ent) 76 { 77 int err; 78 79 err = pci_enable_device(pdev); 80 if (err) { 81 dev_err(&pdev->dev, "failed to enable device\n"); 82 return err; 83 } 84 85 rdc321x_gpio_pdata.sb_pdev = pdev; 86 rdc321x_wdt_pdata.sb_pdev = pdev; 87 88 return mfd_add_devices(&pdev->dev, -1, 89 rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells), 90 NULL, 0, NULL); 91 } 92 93 static void rdc321x_sb_remove(struct pci_dev *pdev) 94 { 95 mfd_remove_devices(&pdev->dev); 96 } 97 98 static const struct pci_device_id 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 = rdc321x_sb_remove, 109 }; 110 111 module_pci_driver(rdc321x_sb_driver); 112 113 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); 114 MODULE_LICENSE("GPL"); 115 MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver"); 116