Revision de5604231ce4bc8db1bc1dcd27d8540cbedf1518 authored by Nick Piggin on 01 February 2010, 11:24:18 UTC, committed by Linus Torvalds on 02 February 2010, 20:50:47 UTC
RCU list walking of the per-cpu vmap cache was broken.  It did not use
RCU primitives, and also the union of free_list and rcu_head is
obviously wrong (because free_list is indeed the list we are RCU
walking).

While we are there, remove a couple of unused fields from an earlier
iteration.

These APIs aren't actually used anywhere, because of problems with the
XFS conversion.  Christoph has now verified that the problems are solved
with these patches.  Also it is an exported interface, so I think it
will be good to be merged now (and Christoph wants to get the XFS
changes into their local tree).

Cc: stable@kernel.org
Cc: linux-mm@kvack.org
Tested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Nick Piggin <npiggin@suse.de>
--
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 489b24f
Raw File
pd6729.c
/*
 * Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
 *
 * Based on the i82092.c driver.
 *
 * This software may be used and distributed according to the terms of
 * the GNU General Public License, incorporated herein by reference.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/device.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/ss.h>
#include <pcmcia/cs.h>

#include <asm/system.h>
#include <asm/io.h>

#include "pd6729.h"
#include "i82365.h"
#include "cirrus.h"

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>");

#define MAX_SOCKETS 2

/*
 * simple helper functions
 * External clock time, in nanoseconds.  120 ns = 8.33 MHz
 */
#define to_cycles(ns)	((ns)/120)

#ifndef NO_IRQ
#define NO_IRQ	((unsigned int)(0))
#endif

/*
 * PARAMETERS
 *  irq_mode=n
 *     Specifies the interrupt delivery mode.  The default (1) is to use PCI
 *     interrupts; a value of 0 selects ISA interrupts. This must be set for
 *     correct operation of PCI card readers.
 *
 *  irq_list=i,j,...
 *     This list limits the set of interrupts that can be used by PCMCIA
 *     cards.
 *     The default list is 3,4,5,7,9,10,11.
 *     (irq_list parameter is not used, if irq_mode = 1)
 */

static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
static int irq_list[16];
static unsigned int irq_list_count = 0;

module_param(irq_mode, int, 0444);
module_param_array(irq_list, int, &irq_list_count, 0444);
MODULE_PARM_DESC(irq_mode,
		"interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
MODULE_PARM_DESC(irq_list, "interrupts that can be used by PCMCIA cards");

static DEFINE_SPINLOCK(port_lock);

/* basic value read/write functions */

static unsigned char indirect_read(struct pd6729_socket *socket,
				   unsigned short reg)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg += socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	val = inb(port + 1);
	spin_unlock_irqrestore(&port_lock, flags);

	return val;
}

static unsigned short indirect_read16(struct pd6729_socket *socket,
				      unsigned short reg)
{
	unsigned long port;
	unsigned short tmp;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg  = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	tmp = inb(port + 1);
	reg++;
	outb(reg, port);
	tmp = tmp | (inb(port + 1) << 8);
	spin_unlock_irqrestore(&port_lock, flags);

	return tmp;
}

static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
			   unsigned char value)
{
	unsigned long port;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	outb(value, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
			    unsigned char mask)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	val = inb(port + 1);
	val |= mask;
	outb(reg, port);
	outb(val, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
			      unsigned char mask)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	val = inb(port + 1);
	val &= ~mask;
	outb(reg, port);
	outb(val, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
			     unsigned short value)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;

	outb(reg, port);
	val = value & 255;
	outb(val, port + 1);

	reg++;

	outb(reg, port);
	val = value >> 8;
	outb(val, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

/* Interrupt handler functionality */

static irqreturn_t pd6729_interrupt(int irq, void *dev)
{
	struct pd6729_socket *socket = (struct pd6729_socket *)dev;
	int i;
	int loopcount = 0;
	int handled = 0;
	unsigned int events, active = 0;

	while (1) {
		loopcount++;
		if (loopcount > 20) {
			printk(KERN_ERR "pd6729: infinite eventloop "
			       "in interrupt\n");
			break;
		}

		active = 0;

		for (i = 0; i < MAX_SOCKETS; i++) {
			unsigned int csc;

			/* card status change register */
			csc = indirect_read(&socket[i], I365_CSC);
			if (csc == 0)  /* no events on this socket */
				continue;

			handled = 1;
			events = 0;

			if (csc & I365_CSC_DETECT) {
				events |= SS_DETECT;
				dev_vdbg(&socket[i].socket.dev,
					"Card detected in socket %i!\n", i);
			}

			if (indirect_read(&socket[i], I365_INTCTL)
						& I365_PC_IOCARD) {
				/* For IO/CARDS, bit 0 means "read the card" */
				events |= (csc & I365_CSC_STSCHG)
						? SS_STSCHG : 0;
			} else {
				/* Check for battery/ready events */
				events |= (csc & I365_CSC_BVD1)
						? SS_BATDEAD : 0;
				events |= (csc & I365_CSC_BVD2)
						? SS_BATWARN : 0;
				events |= (csc & I365_CSC_READY)
						? SS_READY : 0;
			}

			if (events) {
				pcmcia_parse_events(&socket[i].socket, events);
			}
			active |= events;
		}

		if (active == 0) /* no more events to handle */
			break;
	}
	return IRQ_RETVAL(handled);
}

/* socket functions */

static void pd6729_interrupt_wrapper(unsigned long data)
{
	struct pd6729_socket *socket = (struct pd6729_socket *) data;

	pd6729_interrupt(0, (void *)socket);
	mod_timer(&socket->poll_timer, jiffies + HZ);
}

static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
{
	struct pd6729_socket *socket
			= container_of(sock, struct pd6729_socket, socket);
	unsigned int status;
	unsigned int data;
	struct pd6729_socket *t;

	/* Interface Status Register */
	status = indirect_read(socket, I365_STATUS);
	*value = 0;

	if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
		*value |= SS_DETECT;
	}

	/*
	 * IO cards have a different meaning of bits 0,1
	 * Also notice the inverse-logic on the bits
	 */
	if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
		/* IO card */
		if (!(status & I365_CS_STSCHG))
			*value |= SS_STSCHG;
	} else {
		/* non I/O card */
		if (!(status & I365_CS_BVD1))
			*value |= SS_BATDEAD;
		if (!(status & I365_CS_BVD2))
			*value |= SS_BATWARN;
	}

	if (status & I365_CS_WRPROT)
		*value |= SS_WRPROT;	/* card is write protected */

	if (status & I365_CS_READY)
		*value |= SS_READY;	/* card is not busy */

	if (status & I365_CS_POWERON)
		*value |= SS_POWERON;	/* power is applied to the card */

	t = (socket->number) ? socket : socket + 1;
	indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
	data = indirect_read16(t, PD67_EXT_DATA);
	*value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;

	return 0;
}


static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
{
	struct pd6729_socket *socket
			= container_of(sock, struct pd6729_socket, socket);
	unsigned char reg, data;

	/* First, set the global controller options */
	indirect_write(socket, I365_GBLCTL, 0x00);
	indirect_write(socket, I365_GENCTL, 0x00);

	/* Values for the IGENC register */
	socket->card_irq = state->io_irq;

	reg = 0;
 	/* The reset bit has "inverse" logic */
	if (!(state->flags & SS_RESET))
		reg |= I365_PC_RESET;
	if (state->flags & SS_IOCARD)
		reg |= I365_PC_IOCARD;

	/* IGENC, Interrupt and General Control Register */
	indirect_write(socket, I365_INTCTL, reg);

	/* Power registers */

	reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */

	if (state->flags & SS_PWR_AUTO) {
		dev_dbg(&sock->dev, "Auto power\n");
		reg |= I365_PWR_AUTO;	/* automatic power mngmnt */
	}
	if (state->flags & SS_OUTPUT_ENA) {
		dev_dbg(&sock->dev, "Power Enabled\n");
		reg |= I365_PWR_OUT;	/* enable power */
	}

	switch (state->Vcc) {
	case 0:
		break;
	case 33:
		dev_dbg(&sock->dev,
			"setting voltage to Vcc to 3.3V on socket %i\n",
			socket->number);
		reg |= I365_VCC_5V;
		indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
		break;
	case 50:
		dev_dbg(&sock->dev,
			"setting voltage to Vcc to 5V on socket %i\n",
			socket->number);
		reg |= I365_VCC_5V;
		indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
		break;
	default:
		dev_dbg(&sock->dev,
			"pd6729_set_socket called with invalid VCC power "
			"value: %i\n", state->Vcc);
		return -EINVAL;
	}

	switch (state->Vpp) {
	case 0:
		dev_dbg(&sock->dev, "not setting Vpp on socket %i\n",
			socket->number);
		break;
	case 33:
	case 50:
		dev_dbg(&sock->dev, "setting Vpp to Vcc for socket %i\n",
			socket->number);
		reg |= I365_VPP1_5V;
		break;
	case 120:
		dev_dbg(&sock->dev, "setting Vpp to 12.0\n");
		reg |= I365_VPP1_12V;
		break;
	default:
		dev_dbg(&sock->dev, "pd6729: pd6729_set_socket called with "
			"invalid VPP power value: %i\n", state->Vpp);
		return -EINVAL;
	}

	/* only write if changed */
	if (reg != indirect_read(socket, I365_POWER))
		indirect_write(socket, I365_POWER, reg);

	if (irq_mode == 1) {
		 /* all interrupts are to be done as PCI interrupts */
		data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
	} else
		data = 0;

	indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
	indirect_write(socket, PD67_EXT_DATA, data);

	/* Enable specific interrupt events */

	reg = 0x00;
	if (state->csc_mask & SS_DETECT) {
		reg |= I365_CSC_DETECT;
	}
	if (state->flags & SS_IOCARD) {
		if (state->csc_mask & SS_STSCHG)
			reg |= I365_CSC_STSCHG;
	} else {
		if (state->csc_mask & SS_BATDEAD)
			reg |= I365_CSC_BVD1;
		if (state->csc_mask & SS_BATWARN)
			reg |= I365_CSC_BVD2;
		if (state->csc_mask & SS_READY)
			reg |= I365_CSC_READY;
	}
	if (irq_mode == 1)
		reg |= 0x30;	/* management IRQ: PCI INTA# = "irq 3" */
	indirect_write(socket, I365_CSCINT, reg);

	reg = indirect_read(socket, I365_INTCTL);
	if (irq_mode == 1)
		reg |= 0x03;	/* card IRQ: PCI INTA# = "irq 3" */
	else
		reg |= socket->card_irq;
	indirect_write(socket, I365_INTCTL, reg);

	/* now clear the (probably bogus) pending stuff by doing a dummy read */
	(void)indirect_read(socket, I365_CSC);

	return 0;
}

static int pd6729_set_io_map(struct pcmcia_socket *sock,
			     struct pccard_io_map *io)
{
	struct pd6729_socket *socket
			= container_of(sock, struct pd6729_socket, socket);
	unsigned char map, ioctl;

	map = io->map;

	/* Check error conditions */
	if (map > 1) {
		dev_dbg(&sock->dev, "pd6729_set_io_map with invalid map\n");
		return -EINVAL;
	}

	/* Turn off the window before changing anything */
	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));

	/* dev_dbg(&sock->dev, "set_io_map: Setting range to %x - %x\n",
	   io->start, io->stop);*/

	/* write the new values */
	indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
	indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);

	ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);

	if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
	if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
	if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);

	indirect_write(socket, I365_IOCTL, ioctl);

	/* Turn the window back on if needed */
	if (io->flags & MAP_ACTIVE)
		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));

	return 0;
}

static int pd6729_set_mem_map(struct pcmcia_socket *sock,
			      struct pccard_mem_map *mem)
{
	struct pd6729_socket *socket
			 = container_of(sock, struct pd6729_socket, socket);
	unsigned short base, i;
	unsigned char map;

	map = mem->map;
	if (map > 4) {
		dev_warn(&sock->dev, "invalid map requested\n");
		return -EINVAL;
	}

	if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
		dev_warn(&sock->dev, "invalid invalid address / speed\n");
		return -EINVAL;
	}

	/* Turn off the window before changing anything */
	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));

	/* write the start address */
	base = I365_MEM(map);
	i = (mem->res->start >> 12) & 0x0fff;
	if (mem->flags & MAP_16BIT)
		i |= I365_MEM_16BIT;
	if (mem->flags & MAP_0WS)
		i |= I365_MEM_0WS;
	indirect_write16(socket, base + I365_W_START, i);

	/* write the stop address */

	i= (mem->res->end >> 12) & 0x0fff;
	switch (to_cycles(mem->speed)) {
	case 0:
		break;
	case 1:
		i |= I365_MEM_WS0;
		break;
	case 2:
		i |= I365_MEM_WS1;
		break;
	default:
		i |= I365_MEM_WS1 | I365_MEM_WS0;
		break;
	}

	indirect_write16(socket, base + I365_W_STOP, i);

	/* Take care of high byte */
	indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
	indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);

	/* card start */

	i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
	if (mem->flags & MAP_WRPROT)
		i |= I365_MEM_WRPROT;
	if (mem->flags & MAP_ATTRIB) {
		/* dev_dbg(&sock->dev, "requesting attribute memory for "
		   "socket %i\n", socket->number);*/
		i |= I365_MEM_REG;
	} else {
		/* dev_dbg(&sock->dev, "requesting normal memory for "
		   "socket %i\n", socket->number);*/
	}
	indirect_write16(socket, base + I365_W_OFF, i);

	/* Enable the window if necessary */
	if (mem->flags & MAP_ACTIVE)
		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));

	return 0;
}

static int pd6729_init(struct pcmcia_socket *sock)
{
	int i;
	struct resource res = { .end = 0x0fff };
	pccard_io_map io = { 0, 0, 0, 0, 1 };
	pccard_mem_map mem = { .res = &res, };

	pd6729_set_socket(sock, &dead_socket);
	for (i = 0; i < 2; i++) {
		io.map = i;
		pd6729_set_io_map(sock, &io);
	}
	for (i = 0; i < 5; i++) {
		mem.map = i;
		pd6729_set_mem_map(sock, &mem);
	}

	return 0;
}


/* the pccard structure and its functions */
static struct pccard_operations pd6729_operations = {
	.init 			= pd6729_init,
	.get_status		= pd6729_get_status,
	.set_socket		= pd6729_set_socket,
	.set_io_map		= pd6729_set_io_map,
	.set_mem_map		= pd6729_set_mem_map,
};

static irqreturn_t pd6729_test(int irq, void *dev)
{
	pr_devel("-> hit on irq %d\n", irq);
	return IRQ_HANDLED;
}

static int pd6729_check_irq(int irq)
{
	if (request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x", pd6729_test)
		!= 0) return -1;
	free_irq(irq, pd6729_test);
	return 0;
}

static u_int __devinit pd6729_isa_scan(void)
{
	u_int mask0, mask = 0;
	int i;

	if (irq_mode == 1) {
		printk(KERN_INFO "pd6729: PCI card interrupts, "
						"PCI status changes\n");
		return 0;
	}

	if (irq_list_count == 0)
		mask0 = 0xffff;
	else
		for (i = mask0 = 0; i < irq_list_count; i++)
			mask0 |= (1<<irq_list[i]);

	mask0 &= PD67_MASK;

	/* just find interrupts that aren't in use */
	for (i = 0; i < 16; i++)
		if ((mask0 & (1 << i)) && (pd6729_check_irq(i) == 0))
			mask |= (1 << i);

	printk(KERN_INFO "pd6729: ISA irqs = ");
	for (i = 0; i < 16; i++)
		if (mask & (1<<i))
			printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);

	if (mask == 0) printk("none!");

	printk("  polling status changes.\n");

	return mask;
}

static int __devinit pd6729_pci_probe(struct pci_dev *dev,
				      const struct pci_device_id *id)
{
	int i, j, ret;
	u_int mask;
	char configbyte;
	struct pd6729_socket *socket;

	socket = kzalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
			 GFP_KERNEL);
	if (!socket)
		return -ENOMEM;

	if ((ret = pci_enable_device(dev)))
		goto err_out_free_mem;

	if (!pci_resource_start(dev, 0)) {
		dev_warn(&dev->dev, "refusing to load the driver as the "
			"io_base is NULL.\n");
		goto err_out_free_mem;
	}

	dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
		"on irq %d\n",
		(unsigned long long)pci_resource_start(dev, 0), dev->irq);
 	/*
	 * Since we have no memory BARs some firmware may not
	 * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
	 */
	pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
	if (!(configbyte & PCI_COMMAND_MEMORY)) {
		dev_dbg(&dev->dev, "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
		configbyte |= PCI_COMMAND_MEMORY;
		pci_write_config_byte(dev, PCI_COMMAND, configbyte);
	}

	ret = pci_request_regions(dev, "pd6729");
	if (ret) {
		dev_warn(&dev->dev, "pci request region failed.\n");
		goto err_out_disable;
	}

	if (dev->irq == NO_IRQ)
		irq_mode = 0;	/* fall back to ISA interrupt mode */

	mask = pd6729_isa_scan();
	if (irq_mode == 0 && mask == 0) {
		dev_warn(&dev->dev, "no ISA interrupt is available.\n");
		goto err_out_free_res;
	}

	for (i = 0; i < MAX_SOCKETS; i++) {
		socket[i].io_base = pci_resource_start(dev, 0);
		socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
		socket[i].socket.map_size = 0x1000;
		socket[i].socket.irq_mask = mask;
		socket[i].socket.pci_irq  = dev->irq;
		socket[i].socket.owner = THIS_MODULE;

		socket[i].number = i;

		socket[i].socket.ops = &pd6729_operations;
		socket[i].socket.resource_ops = &pccard_nonstatic_ops;
		socket[i].socket.dev.parent = &dev->dev;
		socket[i].socket.driver_data = &socket[i];
	}

	pci_set_drvdata(dev, socket);
	if (irq_mode == 1) {
		/* Register the interrupt handler */
		if ((ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
							"pd6729", socket))) {
			dev_err(&dev->dev, "Failed to register irq %d\n",
				dev->irq);
			goto err_out_free_res;
		}
	} else {
		/* poll Card status change */
		init_timer(&socket->poll_timer);
		socket->poll_timer.function = pd6729_interrupt_wrapper;
		socket->poll_timer.data = (unsigned long)socket;
		socket->poll_timer.expires = jiffies + HZ;
		add_timer(&socket->poll_timer);
	}

	for (i = 0; i < MAX_SOCKETS; i++) {
		ret = pcmcia_register_socket(&socket[i].socket);
		if (ret) {
			dev_warn(&dev->dev, "pcmcia_register_socket failed.\n");
			for (j = 0; j < i ; j++)
				pcmcia_unregister_socket(&socket[j].socket);
			goto err_out_free_res2;
		}
	}

	return 0;

 err_out_free_res2:
	if (irq_mode == 1)
		free_irq(dev->irq, socket);
	else
		del_timer_sync(&socket->poll_timer);
 err_out_free_res:
	pci_release_regions(dev);
 err_out_disable:
	pci_disable_device(dev);

 err_out_free_mem:
	kfree(socket);
	return ret;
}

static void __devexit pd6729_pci_remove(struct pci_dev *dev)
{
	int i;
	struct pd6729_socket *socket = pci_get_drvdata(dev);

	for (i = 0; i < MAX_SOCKETS; i++) {
		/* Turn off all interrupt sources */
		indirect_write(&socket[i], I365_CSCINT, 0);
		indirect_write(&socket[i], I365_INTCTL, 0);

		pcmcia_unregister_socket(&socket[i].socket);
	}

	if (irq_mode == 1)
		free_irq(dev->irq, socket);
	else
		del_timer_sync(&socket->poll_timer);
	pci_release_regions(dev);
	pci_disable_device(dev);

	kfree(socket);
}

#ifdef CONFIG_PM
static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state)
{
	return pcmcia_socket_dev_suspend(&dev->dev);
}

static int pd6729_socket_resume(struct pci_dev *dev)
{
	return pcmcia_socket_dev_resume(&dev->dev);
}
#endif

static struct pci_device_id pd6729_pci_ids[] = {
	{
		.vendor		= PCI_VENDOR_ID_CIRRUS,
		.device		= PCI_DEVICE_ID_CIRRUS_6729,
		.subvendor	= PCI_ANY_ID,
		.subdevice	= PCI_ANY_ID,
	},
	{ }
};
MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);

static struct pci_driver pd6729_pci_driver = {
	.name		= "pd6729",
	.id_table	= pd6729_pci_ids,
	.probe		= pd6729_pci_probe,
	.remove		= __devexit_p(pd6729_pci_remove),
#ifdef CONFIG_PM
	.suspend	= pd6729_socket_suspend,
	.resume		= pd6729_socket_resume,
#endif
};

static int pd6729_module_init(void)
{
	return pci_register_driver(&pd6729_pci_driver);
}

static void pd6729_module_exit(void)
{
	pci_unregister_driver(&pd6729_pci_driver);
}

module_init(pd6729_module_init);
module_exit(pd6729_module_exit);
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