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
29static struct rdc321x_wdt_pdata rdc321x_wdt_pdata;
30
31static 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
40static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = {
41	.max_gpios	= RDC321X_NUM_GPIO,
42};
43
44static 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
58static 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
74static 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
93static void rdc321x_sb_remove(struct pci_dev *pdev)
94{
95	mfd_remove_devices(&pdev->dev);
96}
97
98static const struct pci_device_id rdc321x_sb_table[] = {
99	{ PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) },
100	{}
101};
102MODULE_DEVICE_TABLE(pci, rdc321x_sb_table);
103
104static 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
111module_pci_driver(rdc321x_sb_driver);
112
113MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
114MODULE_LICENSE("GPL");
115MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver");
116