1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * RDC321x MFD southbridge driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2007-2010 Florian Fainelli <florian@openwrt.org>
6*4882a593Smuzhiyun * Copyright (C) 2010 Bernhard Loos <bernhardloos@googlemail.com>
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun #include <linux/module.h>
9*4882a593Smuzhiyun #include <linux/kernel.h>
10*4882a593Smuzhiyun #include <linux/platform_device.h>
11*4882a593Smuzhiyun #include <linux/pci.h>
12*4882a593Smuzhiyun #include <linux/mfd/core.h>
13*4882a593Smuzhiyun #include <linux/mfd/rdc321x.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun static struct rdc321x_wdt_pdata rdc321x_wdt_pdata;
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun static struct resource rdc321x_wdt_resource[] = {
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun .name = "wdt-reg",
20*4882a593Smuzhiyun .start = RDC321X_WDT_CTRL,
21*4882a593Smuzhiyun .end = RDC321X_WDT_CTRL + 0x3,
22*4882a593Smuzhiyun .flags = IORESOURCE_IO,
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun };
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = {
27*4882a593Smuzhiyun .max_gpios = RDC321X_NUM_GPIO,
28*4882a593Smuzhiyun };
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun static struct resource rdc321x_gpio_resources[] = {
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun .name = "gpio-reg1",
33*4882a593Smuzhiyun .start = RDC321X_GPIO_CTRL_REG1,
34*4882a593Smuzhiyun .end = RDC321X_GPIO_CTRL_REG1 + 0x7,
35*4882a593Smuzhiyun .flags = IORESOURCE_IO,
36*4882a593Smuzhiyun }, {
37*4882a593Smuzhiyun .name = "gpio-reg2",
38*4882a593Smuzhiyun .start = RDC321X_GPIO_CTRL_REG2,
39*4882a593Smuzhiyun .end = RDC321X_GPIO_CTRL_REG2 + 0x7,
40*4882a593Smuzhiyun .flags = IORESOURCE_IO,
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun };
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun static const struct mfd_cell rdc321x_sb_cells[] = {
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun .name = "rdc321x-wdt",
47*4882a593Smuzhiyun .resources = rdc321x_wdt_resource,
48*4882a593Smuzhiyun .num_resources = ARRAY_SIZE(rdc321x_wdt_resource),
49*4882a593Smuzhiyun .platform_data = &rdc321x_wdt_pdata,
50*4882a593Smuzhiyun .pdata_size = sizeof(rdc321x_wdt_pdata),
51*4882a593Smuzhiyun }, {
52*4882a593Smuzhiyun .name = "rdc321x-gpio",
53*4882a593Smuzhiyun .resources = rdc321x_gpio_resources,
54*4882a593Smuzhiyun .num_resources = ARRAY_SIZE(rdc321x_gpio_resources),
55*4882a593Smuzhiyun .platform_data = &rdc321x_gpio_pdata,
56*4882a593Smuzhiyun .pdata_size = sizeof(rdc321x_gpio_pdata),
57*4882a593Smuzhiyun },
58*4882a593Smuzhiyun };
59*4882a593Smuzhiyun
rdc321x_sb_probe(struct pci_dev * pdev,const struct pci_device_id * ent)60*4882a593Smuzhiyun static int rdc321x_sb_probe(struct pci_dev *pdev,
61*4882a593Smuzhiyun const struct pci_device_id *ent)
62*4882a593Smuzhiyun {
63*4882a593Smuzhiyun int err;
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun err = pci_enable_device(pdev);
66*4882a593Smuzhiyun if (err) {
67*4882a593Smuzhiyun dev_err(&pdev->dev, "failed to enable device\n");
68*4882a593Smuzhiyun return err;
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun rdc321x_gpio_pdata.sb_pdev = pdev;
72*4882a593Smuzhiyun rdc321x_wdt_pdata.sb_pdev = pdev;
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun return devm_mfd_add_devices(&pdev->dev, -1,
75*4882a593Smuzhiyun rdc321x_sb_cells,
76*4882a593Smuzhiyun ARRAY_SIZE(rdc321x_sb_cells),
77*4882a593Smuzhiyun NULL, 0, NULL);
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun static const struct pci_device_id rdc321x_sb_table[] = {
81*4882a593Smuzhiyun { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) },
82*4882a593Smuzhiyun {}
83*4882a593Smuzhiyun };
84*4882a593Smuzhiyun MODULE_DEVICE_TABLE(pci, rdc321x_sb_table);
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun static struct pci_driver rdc321x_sb_driver = {
87*4882a593Smuzhiyun .name = "RDC321x Southbridge",
88*4882a593Smuzhiyun .id_table = rdc321x_sb_table,
89*4882a593Smuzhiyun .probe = rdc321x_sb_probe,
90*4882a593Smuzhiyun };
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun module_pci_driver(rdc321x_sb_driver);
93*4882a593Smuzhiyun
94*4882a593Smuzhiyun MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
95*4882a593Smuzhiyun MODULE_LICENSE("GPL");
96*4882a593Smuzhiyun MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver");
97