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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * RDC321x MFD southbridge driver4 *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 15static struct rdc321x_wdt_pdata rdc321x_wdt_pdata;16 17static const 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 26static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = {27 .max_gpios = RDC321X_NUM_GPIO,28};29 30static const 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 44static 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 60static 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 80static const struct pci_device_id rdc321x_sb_table[] = {81 { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) },82 {}83};84MODULE_DEVICE_TABLE(pci, rdc321x_sb_table);85 86static struct pci_driver rdc321x_sb_driver = {87 .name = "RDC321x Southbridge",88 .id_table = rdc321x_sb_table,89 .probe = rdc321x_sb_probe,90};91 92module_pci_driver(rdc321x_sb_driver);93 94MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");95MODULE_LICENSE("GPL");96MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver");97