9abd768a8d
With the addition of a platform device mfd_cell pointer, MFD drivers can go back to passing platform data back to their sub drivers. This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers MFD agnostic. This is mostly needed for non MFD aware sub drivers. Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Florian Fainelli <florian@openwrt.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
126 lines
3.3 KiB
C
126 lines
3.3 KiB
C
/*
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* RDC321x MFD southbrige driver
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*
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* Copyright (C) 2007-2010 Florian Fainelli <florian@openwrt.org>
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* Copyright (C) 2010 Bernhard Loos <bernhardloos@googlemail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/pci.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/rdc321x.h>
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static struct rdc321x_wdt_pdata rdc321x_wdt_pdata;
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static struct resource rdc321x_wdt_resource[] = {
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{
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.name = "wdt-reg",
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.start = RDC321X_WDT_CTRL,
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.end = RDC321X_WDT_CTRL + 0x3,
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.flags = IORESOURCE_IO,
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}
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};
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static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = {
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.max_gpios = RDC321X_MAX_GPIO,
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};
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static struct resource rdc321x_gpio_resources[] = {
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{
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.name = "gpio-reg1",
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.start = RDC321X_GPIO_CTRL_REG1,
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.end = RDC321X_GPIO_CTRL_REG1 + 0x7,
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.flags = IORESOURCE_IO,
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}, {
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.name = "gpio-reg2",
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.start = RDC321X_GPIO_CTRL_REG2,
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.end = RDC321X_GPIO_CTRL_REG2 + 0x7,
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.flags = IORESOURCE_IO,
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}
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};
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static struct mfd_cell rdc321x_sb_cells[] = {
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{
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.name = "rdc321x-wdt",
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.resources = rdc321x_wdt_resource,
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.num_resources = ARRAY_SIZE(rdc321x_wdt_resource),
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.platform_data = &rdc321x_wdt_pdata,
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.pdata_size = sizeof(rdc321x_wdt_pdata),
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}, {
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.name = "rdc321x-gpio",
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.resources = rdc321x_gpio_resources,
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.num_resources = ARRAY_SIZE(rdc321x_gpio_resources),
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.platform_data = &rdc321x_gpio_pdata,
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.pdata_size = sizeof(rdc321x_gpio_pdata),
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},
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};
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static int __devinit rdc321x_sb_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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int err;
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err = pci_enable_device(pdev);
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if (err) {
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dev_err(&pdev->dev, "failed to enable device\n");
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return err;
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}
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rdc321x_gpio_pdata.sb_pdev = pdev;
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rdc321x_wdt_pdata.sb_pdev = pdev;
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return mfd_add_devices(&pdev->dev, -1,
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rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells), NULL, 0);
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}
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static void __devexit rdc321x_sb_remove(struct pci_dev *pdev)
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{
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mfd_remove_devices(&pdev->dev);
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}
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static DEFINE_PCI_DEVICE_TABLE(rdc321x_sb_table) = {
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{ PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) },
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{}
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};
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MODULE_DEVICE_TABLE(pci, rdc321x_sb_table);
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static struct pci_driver rdc321x_sb_driver = {
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.name = "RDC321x Southbridge",
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.id_table = rdc321x_sb_table,
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.probe = rdc321x_sb_probe,
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.remove = __devexit_p(rdc321x_sb_remove),
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};
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static int __init rdc321x_sb_init(void)
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{
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return pci_register_driver(&rdc321x_sb_driver);
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}
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static void __exit rdc321x_sb_exit(void)
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{
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pci_unregister_driver(&rdc321x_sb_driver);
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}
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module_init(rdc321x_sb_init);
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module_exit(rdc321x_sb_exit);
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MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("RDC R-321x MFD southbridge driver");
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