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Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-serial.git

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Linus Torvalds
2005-08-29 10:34:59 -07:00
parent 2321fbd2b8 661299d9d0
commit 975f957dc4
4 changed files with 395 additions and 527 deletions
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502
drivers/serial/8250_pci.c
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@@ -33,36 +33,6 @@
#undef SERIAL_DEBUG_PCI
/*
* Definitions for PCI support.
*/
#define FL_BASE_MASK 0x0007
#define FL_BASE0 0x0000
#define FL_BASE1 0x0001
#define FL_BASE2 0x0002
#define FL_BASE3 0x0003
#define FL_BASE4 0x0004
#define FL_GET_BASE(x) (x & FL_BASE_MASK)
/* Use successive BARs (PCI base address registers),
else use offset into some specified BAR */
#define FL_BASE_BARS 0x0008
/* do not assign an irq */
#define FL_NOIRQ 0x0080
/* Use the Base address register size to cap number of ports */
#define FL_REGION_SZ_CAP 0x0100
struct pci_board {
unsigned int flags;
unsigned int num_ports;
unsigned int base_baud;
unsigned int uart_offset;
unsigned int reg_shift;
unsigned int first_offset;
};
/*
* init function returns:
* > 0 - number of ports
@@ -75,14 +45,15 @@ struct pci_serial_quirk {
u32 subvendor;
u32 subdevice;
int (*init)(struct pci_dev *dev);
int (*setup)(struct pci_dev *dev, struct pci_board *board,
struct uart_port *port, int idx);
int (*setup)(struct serial_private *, struct pciserial_board *,
struct uart_port *, int);
void (*exit)(struct pci_dev *dev);
};
#define PCI_NUM_BAR_RESOURCES 6
struct serial_private {
struct pci_dev *dev;
unsigned int nr;
void __iomem *remapped_bar[PCI_NUM_BAR_RESOURCES];
struct pci_serial_quirk *quirk;
@@ -101,17 +72,18 @@ static void moan_device(const char *str, struct pci_dev *dev)
}
static int
setup_port(struct pci_dev *dev, struct uart_port *port,
setup_port(struct serial_private *priv, struct uart_port *port,
int bar, int offset, int regshift)
{
struct serial_private *priv = pci_get_drvdata(dev);
struct pci_dev *dev = priv->dev;
unsigned long base, len;
if (bar >= PCI_NUM_BAR_RESOURCES)
return -EINVAL;
base = pci_resource_start(dev, bar);
if (pci_resource_flags(dev, bar) & IORESOURCE_MEM) {
base = pci_resource_start(dev, bar);
len = pci_resource_len(dev, bar);
if (!priv->remapped_bar[bar])
@@ -120,13 +92,16 @@ setup_port(struct pci_dev *dev, struct uart_port *port,
return -ENOMEM;
port->iotype = UPIO_MEM;
port->iobase = 0;
port->mapbase = base + offset;
port->membase = priv->remapped_bar[bar] + offset;
port->regshift = regshift;
} else {
base = pci_resource_start(dev, bar) + offset;
port->iotype = UPIO_PORT;
port->iobase = base;
port->iobase = base + offset;
port->mapbase = 0;
port->membase = NULL;
port->regshift = 0;
}
return 0;
}
@@ -136,7 +111,7 @@ setup_port(struct pci_dev *dev, struct uart_port *port,
* Not that ugly ;) -- HW
*/
static int
afavlab_setup(struct pci_dev *dev, struct pci_board *board,
afavlab_setup(struct serial_private *priv, struct pciserial_board *board,
struct uart_port *port, int idx)
{
unsigned int bar, offset = board->first_offset;
@@ -149,7 +124,7 @@ afavlab_setup(struct pci_dev *dev, struct pci_board *board,
offset += (idx - 4) * board->uart_offset;
}
return setup_port(dev, port, bar, offset, board->reg_shift);
return setup_port(priv, port, bar, offset, board->reg_shift);
}
/*
@@ -189,13 +164,13 @@ static int __devinit pci_hp_diva_init(struct pci_dev *dev)
* some serial ports are supposed to be hidden on certain models.
*/
static int
pci_hp_diva_setup(struct pci_dev *dev, struct pci_board *board,
pci_hp_diva_setup(struct serial_private *priv, struct pciserial_board *board,
struct uart_port *port, int idx)
{
unsigned int offset = board->first_offset;
unsigned int bar = FL_GET_BASE(board->flags);
switch (dev->subsystem_device) {
switch (priv->dev->subsystem_device) {
case PCI_DEVICE_ID_HP_DIVA_MAESTRO:
if (idx == 3)
idx++;
@@ -212,7 +187,7 @@ pci_hp_diva_setup(struct pci_dev *dev, struct pci_board *board,
offset += idx * board->uart_offset;
return setup_port(dev, port, bar, offset, board->reg_shift);
return setup_port(priv, port, bar, offset, board->reg_shift);
}
/*
@@ -307,7 +282,7 @@ static void __devexit pci_plx9050_exit(struct pci_dev *dev)
/* SBS Technologies Inc. PMC-OCTPRO and P-OCTAL cards */
static int
sbs_setup(struct pci_dev *dev, struct pci_board *board,
sbs_setup(struct serial_private *priv, struct pciserial_board *board,
struct uart_port *port, int idx)
{
unsigned int bar, offset = board->first_offset;
@@ -323,7 +298,7 @@ sbs_setup(struct pci_dev *dev, struct pci_board *board,
} else /* we have only 8 ports on PMC-OCTALPRO */
return 1;
return setup_port(dev, port, bar, offset, board->reg_shift);
return setup_port(priv, port, bar, offset, board->reg_shift);
}
/*
@@ -389,6 +364,9 @@ static void __devexit sbs_exit(struct pci_dev *dev)
* - 10x cards have control registers in IO and/or memory space;
* - 20x cards have control registers in standard PCI configuration space.
*
* Note: all 10x cards have PCI device ids 0x10..
* all 20x cards have PCI device ids 0x20..
*
* There are also Quartet Serial cards which use Oxford Semiconductor
* 16954 quad UART PCI chip clocked by 18.432 MHz quartz.
*
@@ -445,24 +423,18 @@ static int pci_siig20x_init(struct pci_dev *dev)
return 0;
}
int pci_siig10x_fn(struct pci_dev *dev, int enable)
static int pci_siig_init(struct pci_dev *dev)
{
int ret = 0;
if (enable)
ret = pci_siig10x_init(dev);
return ret;
}
unsigned int type = dev->device & 0xff00;
int pci_siig20x_fn(struct pci_dev *dev, int enable)
{
int ret = 0;
if (enable)
ret = pci_siig20x_init(dev);
return ret;
}
if (type == 0x1000)
return pci_siig10x_init(dev);
else if (type == 0x2000)
return pci_siig20x_init(dev);
EXPORT_SYMBOL(pci_siig10x_fn);
EXPORT_SYMBOL(pci_siig20x_fn);
moan_device("Unknown SIIG card", dev);
return -ENODEV;
}
/*
* Timedia has an explosion of boards, and to avoid the PCI table from
@@ -523,7 +495,7 @@ static int __devinit pci_timedia_init(struct pci_dev *dev)
* Ugh, this is ugly as all hell --- TYT
*/
static int
pci_timedia_setup(struct pci_dev *dev, struct pci_board *board,
pci_timedia_setup(struct serial_private *priv, struct pciserial_board *board,
struct uart_port *port, int idx)
{
unsigned int bar = 0, offset = board->first_offset;
@@ -549,14 +521,15 @@ pci_timedia_setup(struct pci_dev *dev, struct pci_board *board,
bar = idx - 2;
}
return setup_port(dev, port, bar, offset, board->reg_shift);
return setup_port(priv, port, bar, offset, board->reg_shift);
}
/*
* Some Titan cards are also a little weird
*/
static int
titan_400l_800l_setup(struct pci_dev *dev, struct pci_board *board,
titan_400l_800l_setup(struct serial_private *priv,
struct pciserial_board *board,
struct uart_port *port, int idx)
{
unsigned int bar, offset = board->first_offset;
@@ -573,7 +546,7 @@ titan_400l_800l_setup(struct pci_dev *dev, struct pci_board *board,
offset = (idx - 2) * board->uart_offset;
}
return setup_port(dev, port, bar, offset, board->reg_shift);
return setup_port(priv, port, bar, offset, board->reg_shift);
}
static int __devinit pci_xircom_init(struct pci_dev *dev)
@@ -593,7 +566,7 @@ static int __devinit pci_netmos_init(struct pci_dev *dev)
}
static int
pci_default_setup(struct pci_dev *dev, struct pci_board *board,
pci_default_setup(struct serial_private *priv, struct pciserial_board *board,
struct uart_port *port, int idx)
{
unsigned int bar, offset = board->first_offset, maxnr;
@@ -604,13 +577,13 @@ pci_default_setup(struct pci_dev *dev, struct pci_board *board,
else
offset += idx * board->uart_offset;
maxnr = (pci_resource_len(dev, bar) - board->first_offset) /
maxnr = (pci_resource_len(priv->dev, bar) - board->first_offset) /
(8 << board->reg_shift);
if (board->flags & FL_REGION_SZ_CAP && idx >= maxnr)
return 1;
return setup_port(dev, port, bar, offset, board->reg_shift);
return setup_port(priv, port, bar, offset, board->reg_shift);
}
/* This should be in linux/pci_ids.h */
@@ -754,152 +727,15 @@ static struct pci_serial_quirk pci_serial_quirks[] = {
.setup = sbs_setup,
.exit = __devexit_p(sbs_exit),
},
/*
* SIIG cards.
* It is not clear whether these could be collapsed.
*/
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_1S_10x_550,
.device = PCI_ANY_ID,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_1S_10x_650,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_1S_10x_850,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_2S_10x_550,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_2S_10x_650,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_2S_10x_850,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_4S_10x_550,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_4S_10x_650,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_4S_10x_850,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig10x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_1S_20x_550,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_1S_20x_650,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_1S_20x_850,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_2S_20x_550,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{ .vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_2S_20x_650,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_2S_20x_850,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_4S_20x_550,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_4S_20x_650,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.setup = pci_default_setup,
},
{
.vendor = PCI_VENDOR_ID_SIIG,
.device = PCI_DEVICE_ID_SIIG_4S_20x_850,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.init = pci_siig20x_init,
.init = pci_siig_init,
.setup = pci_default_setup,
},
/*
@@ -990,7 +826,7 @@ static struct pci_serial_quirk *find_quirk(struct pci_dev *dev)
}
static _INLINE_ int
get_pci_irq(struct pci_dev *dev, struct pci_board *board, int idx)
get_pci_irq(struct pci_dev *dev, struct pciserial_board *board)
{
if (board->flags & FL_NOIRQ)
return 0;
@@ -1115,7 +951,7 @@ enum pci_board_num_t {
* see first lines of serial_in() and serial_out() in 8250.c
*/
static struct pci_board pci_boards[] __devinitdata = {
static struct pciserial_board pci_boards[] __devinitdata = {
[pbn_default] = {
.flags = FL_BASE0,
.num_ports = 1,
@@ -1575,7 +1411,7 @@ static struct pci_board pci_boards[] __devinitdata = {
* serial specs. Returns 0 on success, 1 on failure.
*/
static int __devinit
serial_pci_guess_board(struct pci_dev *dev, struct pci_board *board)
serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
{
int num_iomem, num_port, first_port = -1, i;
@@ -1640,7 +1476,8 @@ serial_pci_guess_board(struct pci_dev *dev, struct pci_board *board)
}
static inline int
serial_pci_matches(struct pci_board *board, struct pci_board *guessed)
serial_pci_matches(struct pciserial_board *board,
struct pciserial_board *guessed)
{
return
board->num_ports == guessed->num_ports &&
@@ -1650,6 +1487,137 @@ serial_pci_matches(struct pci_board *board, struct pci_board *guessed)
board->first_offset == guessed->first_offset;
}
struct serial_private *
pciserial_init_ports(struct pci_dev *dev, struct pciserial_board *board)
{
struct uart_port serial_port;
struct serial_private *priv;
struct pci_serial_quirk *quirk;
int rc, nr_ports, i;
nr_ports = board->num_ports;
/*
* Find an init and setup quirks.
*/
quirk = find_quirk(dev);
/*
* Run the new-style initialization function.
* The initialization function returns:
* <0 - error
* 0 - use board->num_ports
* >0 - number of ports
*/
if (quirk->init) {
rc = quirk->init(dev);
if (rc < 0) {
priv = ERR_PTR(rc);
goto err_out;
}
if (rc)
nr_ports = rc;
}
priv = kmalloc(sizeof(struct serial_private) +
sizeof(unsigned int) * nr_ports,
GFP_KERNEL);
if (!priv) {
priv = ERR_PTR(-ENOMEM);
goto err_deinit;
}
memset(priv, 0, sizeof(struct serial_private) +
sizeof(unsigned int) * nr_ports);
priv->dev = dev;
priv->quirk = quirk;
memset(&serial_port, 0, sizeof(struct uart_port));
serial_port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
serial_port.uartclk = board->base_baud * 16;
serial_port.irq = get_pci_irq(dev, board);
serial_port.dev = &dev->dev;
for (i = 0; i < nr_ports; i++) {
if (quirk->setup(priv, board, &serial_port, i))
break;
#ifdef SERIAL_DEBUG_PCI
printk("Setup PCI port: port %x, irq %d, type %d\n",
serial_port.iobase, serial_port.irq, serial_port.iotype);
#endif
priv->line[i] = serial8250_register_port(&serial_port);
if (priv->line[i] < 0) {
printk(KERN_WARNING "Couldn't register serial port %s: %d\n", pci_name(dev), priv->line[i]);
break;
}
}
priv->nr = i;
return priv;
err_deinit:
if (quirk->exit)
quirk->exit(dev);
err_out:
return priv;
}
EXPORT_SYMBOL_GPL(pciserial_init_ports);
void pciserial_remove_ports(struct serial_private *priv)
{
struct pci_serial_quirk *quirk;
int i;
for (i = 0; i < priv->nr; i++)
serial8250_unregister_port(priv->line[i]);
for (i = 0; i < PCI_NUM_BAR_RESOURCES; i++) {
if (priv->remapped_bar[i])
iounmap(priv->remapped_bar[i]);
priv->remapped_bar[i] = NULL;
}
/*
* Find the exit quirks.
*/
quirk = find_quirk(priv->dev);
if (quirk->exit)
quirk->exit(priv->dev);
kfree(priv);
}
EXPORT_SYMBOL_GPL(pciserial_remove_ports);
void pciserial_suspend_ports(struct serial_private *priv)
{
int i;
for (i = 0; i < priv->nr; i++)
if (priv->line[i] >= 0)
serial8250_suspend_port(priv->line[i]);
}
EXPORT_SYMBOL_GPL(pciserial_suspend_ports);
void pciserial_resume_ports(struct serial_private *priv)
{
int i;
/*
* Ensure that the board is correctly configured.
*/
if (priv->quirk->init)
priv->quirk->init(priv->dev);
for (i = 0; i < priv->nr; i++)
if (priv->line[i] >= 0)
serial8250_resume_port(priv->line[i]);
}
EXPORT_SYMBOL_GPL(pciserial_resume_ports);
/*
* Probe one serial board. Unfortunately, there is no rhyme nor reason
* to the arrangement of serial ports on a PCI card.
@@ -1658,9 +1626,8 @@ static int __devinit
pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
{
struct serial_private *priv;
struct pci_board *board, tmp;
struct pci_serial_quirk *quirk;
int rc, nr_ports, i;
struct pciserial_board *board, tmp;
int rc;
if (ent->driver_data >= ARRAY_SIZE(pci_boards)) {
printk(KERN_ERR "pci_init_one: invalid driver_data: %ld\n",
@@ -1679,7 +1646,7 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
* Use a copy of the pci_board entry for this;
* avoid changing entries in the table.
*/
memcpy(&tmp, board, sizeof(struct pci_board));
memcpy(&tmp, board, sizeof(struct pciserial_board));
board = &tmp;
/*
@@ -1695,79 +1662,22 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
* detect this boards settings with our heuristic,
* then we no longer need this entry.
*/
memcpy(&tmp, &pci_boards[pbn_default], sizeof(struct pci_board));
memcpy(&tmp, &pci_boards[pbn_default],
sizeof(struct pciserial_board));
rc = serial_pci_guess_board(dev, &tmp);
if (rc == 0 && serial_pci_matches(board, &tmp))
moan_device("Redundant entry in serial pci_table.",
dev);
}
nr_ports = board->num_ports;
/*
* Find an init and setup quirks.
*/
quirk = find_quirk(dev);
/*
* Run the new-style initialization function.
* The initialization function returns:
* <0 - error
* 0 - use board->num_ports
* >0 - number of ports
*/
if (quirk->init) {
rc = quirk->init(dev);
if (rc < 0)
goto disable;
if (rc)
nr_ports = rc;
priv = pciserial_init_ports(dev, board);
if (!IS_ERR(priv)) {
pci_set_drvdata(dev, priv);
return 0;
}
priv = kmalloc(sizeof(struct serial_private) +
sizeof(unsigned int) * nr_ports,
GFP_KERNEL);
if (!priv) {
rc = -ENOMEM;
goto deinit;
}
rc = PTR_ERR(priv);
memset(priv, 0, sizeof(struct serial_private) +
sizeof(unsigned int) * nr_ports);
priv->quirk = quirk;
pci_set_drvdata(dev, priv);
for (i = 0; i < nr_ports; i++) {
struct uart_port serial_port;
memset(&serial_port, 0, sizeof(struct uart_port));
serial_port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF |
UPF_SHARE_IRQ;
serial_port.uartclk = board->base_baud * 16;
serial_port.irq = get_pci_irq(dev, board, i);
serial_port.dev = &dev->dev;
if (quirk->setup(dev, board, &serial_port, i))
break;
#ifdef SERIAL_DEBUG_PCI
printk("Setup PCI port: port %x, irq %d, type %d\n",
serial_port.iobase, serial_port.irq, serial_port.iotype);
#endif
priv->line[i] = serial8250_register_port(&serial_port);
if (priv->line[i] < 0) {
printk(KERN_WARNING "Couldn't register serial port %s: %d\n", pci_name(dev), priv->line[i]);
break;
}
}
priv->nr = i;
return 0;
deinit:
if (quirk->exit)
quirk->exit(dev);
disable:
pci_disable_device(dev);
return rc;
@@ -1776,42 +1686,21 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
static void __devexit pciserial_remove_one(struct pci_dev *dev)
{
struct serial_private *priv = pci_get_drvdata(dev);
struct pci_serial_quirk *quirk;
int i;
pci_set_drvdata(dev, NULL);
for (i = 0; i < priv->nr; i++)
serial8250_unregister_port(priv->line[i]);
for (i = 0; i < PCI_NUM_BAR_RESOURCES; i++) {
if (priv->remapped_bar[i])
iounmap(priv->remapped_bar[i]);
priv->remapped_bar[i] = NULL;
}
/*
* Find the exit quirks.
*/
quirk = find_quirk(dev);
if (quirk->exit)
quirk->exit(dev);
pciserial_remove_ports(priv);
pci_disable_device(dev);
kfree(priv);
}
static int pciserial_suspend_one(struct pci_dev *dev, pm_message_t state)
{
struct serial_private *priv = pci_get_drvdata(dev);
if (priv) {
int i;
if (priv)
pciserial_suspend_ports(priv);
for (i = 0; i < priv->nr; i++)
serial8250_suspend_port(priv->line[i]);
}
pci_save_state(dev);
pci_set_power_state(dev, pci_choose_state(dev, state));
return 0;
@@ -1825,21 +1714,12 @@ static int pciserial_resume_one(struct pci_dev *dev)
pci_restore_state(dev);
if (priv) {
int i;
/*
* The device may have been disabled. Re-enable it.
*/
pci_enable_device(dev);
/*
* Ensure that the board is correctly configured.
*/
if (priv->quirk->init)
priv->quirk->init(dev);
for (i = 0; i < priv->nr; i++)
serial8250_resume_port(priv->line[i]);
pciserial_resume_ports(priv);
}
return 0;
}