Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial: (21 commits)
  [SERIAL] add PNP IDs for FPI based touchscreens
  [SERIAL] Magic SysRq SAK does nothing on serial consoles
  [SERIAL] tickle NMI watchdog on serial output.
  [SERIAL] Fix oops when removing suspended serial port
  [SERIAL] Fix resume handling bug
  [SERIAL] Remove wrong asm/serial.h inclusions
  [SERIAL] CONFIG_PM=n slim: drivers/serial/8250_pci.c
  [SERIAL] OMAP1510 serial fix for 115200 baud
  [SERIAL] returning proper error from serial core driver
  [SERIAL] Make uart_line_info() correctly tell MMIO from I/O port
  [SERIAL] suspend/resume handlers don't have level arg anymore
  [SERIAL] 8250 resourse management fixes
  [SERIAL] serial_cs: Add quirk for brainboxes 2-port RS232 card
  [SERIAL] serial_cs: handle Nokia multi->single port bodge via config quirk
  [SERIAL] serial_cs: add configuration quirk
  [SERIAL] serial_cs: Convert Oxford 950 / Possio GCC wakeup quirk
  [SERIAL] serial_cs: convert IBM post-init handling to a quirk
  [SERIAL] serial_cs: allow wildcarded quirks
  [SERIAL] serial_cs: convert multi-port table to quirk table
  [SERIAL] serial_cs: Use clean up multiport card detection
  ...

arch/frv/kernel/setup.c

@@ -31,7 +31,6 @@
 #include <linux/serial_reg.h>
 
 #include <asm/setup.h>
-#include <asm/serial.h>
 #include <asm/irq.h>
 #include <asm/sections.h>
 #include <asm/pgalloc.h>

arch/ia64/kernel/setup.c

@@ -54,7 +54,6 @@
 #include <asm/processor.h>
 #include <asm/sal.h>
 #include <asm/sections.h>
-#include <asm/serial.h>
 #include <asm/setup.h>
 #include <asm/smp.h>
 #include <asm/system.h>

arch/mips/cobalt/setup.c

@@ -23,7 +23,6 @@
 #include <asm/processor.h>
 #include <asm/reboot.h>
 #include <asm/gt64120.h>
-#include <asm/serial.h>
 
 #include <asm/mach-cobalt/cobalt.h>
 

arch/mips/lasat/setup.c

@@ -34,7 +34,6 @@
 #include <asm/cpu.h>
 #include <asm/bootinfo.h>
 #include <asm/irq.h>
-#include <asm/serial.h>
 #include <asm/lasat/lasat.h>
 #include <asm/lasat/serial.h>
 

drivers/char/pcmcia/synclink_cs.c

@@ -57,7 +57,6 @@
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
 #include <linux/init.h>
-#include <asm/serial.h>
 #include <linux/delay.h>
 #include <linux/ioctl.h>
 

drivers/char/synclink.c

@@ -87,7 +87,6 @@
 
 #include <linux/vmalloc.h>
 #include <linux/init.h>
-#include <asm/serial.h>
 
 #include <linux/delay.h>
 #include <linux/ioctl.h>

drivers/serial/8250.c

@@ -1896,6 +1896,17 @@ serial8250_set_termios(struct uart_port *port, struct termios *termios,
 		serial_outp(up, UART_EFR, efr);
 	}
 
+#ifdef CONFIG_ARCH_OMAP15XX
+	/* Workaround to enable 115200 baud on OMAP1510 internal ports */
+	if (cpu_is_omap1510() && is_omap_port((unsigned int)up->port.membase)) {
+		if (baud == 115200) {
+			quot = 1;
+			serial_out(up, UART_OMAP_OSC_12M_SEL, 1);
+		} else
+			serial_out(up, UART_OMAP_OSC_12M_SEL, 0);
+	}
+#endif
+
 	if (up->capabilities & UART_NATSEMI) {
 		/* Switch to bank 2 not bank 1, to avoid resetting EXCR2 */
 		serial_outp(up, UART_LCR, 0xe0);
@@ -1949,6 +1960,8 @@ static int serial8250_request_std_resource(struct uart_8250_port *up)
 	case UPIO_AU:
 		size = 0x100000;
 		/* fall thru */
+	case UPIO_TSI:
+	case UPIO_MEM32:
 	case UPIO_MEM:
 		if (!up->port.mapbase)
 			break;
@@ -1984,6 +1997,8 @@ static void serial8250_release_std_resource(struct uart_8250_port *up)
 	case UPIO_AU:
 		size = 0x100000;
 		/* fall thru */
+	case UPIO_TSI:
+	case UPIO_MEM32:
 	case UPIO_MEM:
 		if (!up->port.mapbase)
 			break;
@@ -2007,17 +2022,15 @@ static int serial8250_request_rsa_resource(struct uart_8250_port *up)
 {
 	unsigned long start = UART_RSA_BASE << up->port.regshift;
 	unsigned int size = 8 << up->port.regshift;
-	int ret = 0;
+	int ret = -EINVAL;
 
 	switch (up->port.iotype) {
-	case UPIO_MEM:
-		ret = -EINVAL;
-		break;
-
 	case UPIO_HUB6:
 	case UPIO_PORT:
 		start += up->port.iobase;
-		if (!request_region(start, size, "serial-rsa"))
+		if (request_region(start, size, "serial-rsa"))
+			ret = 0;
+		else
 			ret = -EBUSY;
 		break;
 	}
@@ -2031,9 +2044,6 @@ static void serial8250_release_rsa_resource(struct uart_8250_port *up)
 	unsigned int size = 8 << up->port.regshift;
 
 	switch (up->port.iotype) {
-	case UPIO_MEM:
-		break;
-
 	case UPIO_HUB6:
 	case UPIO_PORT:
 		release_region(up->port.iobase + offset, size);
@@ -2222,9 +2232,10 @@ static inline void wait_for_xmitr(struct uart_8250_port *up, int bits)
 	/* Wait up to 1s for flow control if necessary */
 	if (up->port.flags & UPF_CONS_FLOW) {
 		tmout = 1000000;
-		while (--tmout &&
-		       ((serial_in(up, UART_MSR) & UART_MSR_CTS) == 0))
+		while (!(serial_in(up, UART_MSR) & UART_MSR_CTS) && --tmout) {
 			udelay(1);
+			touch_nmi_watchdog();
+		}
 	}
 }
 
@@ -2397,7 +2408,6 @@ int __init early_serial_setup(struct uart_port *port)
 /**
  *	serial8250_suspend_port - suspend one serial port
  *	@line:  serial line number
- *      @level: the level of port suspension, as per uart_suspend_port
  *
  *	Suspend one serial port.
  */
@@ -2409,7 +2419,6 @@ void serial8250_suspend_port(int line)
 /**
  *	serial8250_resume_port - resume one serial port
  *	@line:  serial line number
- *      @level: the level of port resumption, as per uart_resume_port
  *
  *	Resume one serial port.
  */

drivers/serial/8250_pci.c

@@ -1789,6 +1789,7 @@ static void __devexit pciserial_remove_one(struct pci_dev *dev)
 	pci_disable_device(dev);
 }
 
+#ifdef CONFIG_PM
 static int pciserial_suspend_one(struct pci_dev *dev, pm_message_t state)
 {
 	struct serial_private *priv = pci_get_drvdata(dev);
@@ -1818,6 +1819,7 @@ static int pciserial_resume_one(struct pci_dev *dev)
 	}
 	return 0;
 }
+#endif
 
 static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V960,
@@ -2375,8 +2377,10 @@ static struct pci_driver serial_pci_driver = {
 	.name		= "serial",
 	.probe		= pciserial_init_one,
 	.remove		= __devexit_p(pciserial_remove_one),
+#ifdef CONFIG_PM
 	.suspend	= pciserial_suspend_one,
 	.resume		= pciserial_resume_one,
+#endif
 	.id_table	= serial_pci_tbl,
 };
 

drivers/serial/8250_pnp.c

@@ -327,6 +327,19 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	{	"WACF004",		0	},
 	{	"WACF005",		0	},
 	{       "WACF006",              0       },
+	/* Compaq touchscreen */
+	{       "FPI2002",              0 },
+	/* Fujitsu Stylistic touchscreens */
+	{       "FUJ02B2",              0 },
+	{       "FUJ02B3",              0 },
+	/* Fujitsu Stylistic LT touchscreens */
+	{       "FUJ02B4",              0 },
+	/* Passive Fujitsu Stylistic touchscreens */
+	{       "FUJ02B6",              0 },
+	{       "FUJ02B7",              0 },
+	{       "FUJ02B8",              0 },
+	{       "FUJ02B9",              0 },
+	{       "FUJ02BC",              0 },
 	/* Rockwell's (PORALiNK) 33600 INT PNP */
 	{	"WCI0003",		0	},
 	/* Unkown PnP modems */

drivers/serial/m32r_sio.c

@@ -76,7 +76,7 @@
  */
 #define is_real_interrupt(irq)	((irq) != 0)
 
-#include <asm/serial.h>
+#define BASE_BAUD	115200
 
 /* Standard COM flags */
 #define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
@@ -86,7 +86,6 @@
  * standard enumeration mechanism.   Platforms that can find all
  * serial ports via mechanisms like ACPI or PCI need not supply it.
  */
-#undef SERIAL_PORT_DFNS
 #if defined(CONFIG_PLAT_USRV)
 
 #define SERIAL_PORT_DFNS						\
@@ -109,7 +108,7 @@
 #endif /* !CONFIG_PLAT_USRV */
 
 static struct old_serial_port old_serial_port[] = {
-	SERIAL_PORT_DFNS	/* defined in asm/serial.h */
+	SERIAL_PORT_DFNS
 };
 
 #define UART_NR	ARRAY_SIZE(old_serial_port)

drivers/serial/serial_core.c

@@ -792,6 +792,7 @@ static int uart_set_info(struct uart_state *state,
 			 * We failed anyway.
 			 */
 			retval = -EBUSY;
+			goto exit;  // Added to return the correct error -Ram Gupta
 		}
 	}
 
@@ -1662,16 +1663,16 @@ static int uart_line_info(char *buf, struct uart_driver *drv, int i)
 	struct uart_port *port = state->port;
 	char stat_buf[32];
 	unsigned int status;
-	int ret;
+	int mmio, ret;
 
 	if (!port)
 		return 0;
 
+	mmio = port->iotype >= UPIO_MEM;
 	ret = sprintf(buf, "%d: uart:%s %s%08lX irq:%d",
 			port->line, uart_type(port),
-			port->iotype == UPIO_MEM ? "mmio:0x" : "port:",
-			port->iotype == UPIO_MEM ? port->mapbase :
-						(unsigned long) port->iobase,
+			mmio ? "mmio:0x" : "port:",
+			mmio ? port->mapbase : (unsigned long) port->iobase,
 			port->irq);
 
 	if (port->type == PORT_UNKNOWN) {
@@ -1939,6 +1940,9 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port)
 	if (state->info && state->info->flags & UIF_INITIALIZED) {
 		const struct uart_ops *ops = port->ops;
 
+		state->info->flags = (state->info->flags & ~UIF_INITIALIZED)
+				     | UIF_SUSPENDED;
+
 		spin_lock_irq(&port->lock);
 		ops->stop_tx(port);
 		ops->set_mctrl(port, 0);
@@ -2005,7 +2009,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
 		console_start(port->cons);
 	}
 
-	if (state->info && state->info->flags & UIF_INITIALIZED) {
+	if (state->info && state->info->flags & UIF_SUSPENDED) {
 		const struct uart_ops *ops = port->ops;
 		int ret;
 
@@ -2017,15 +2021,17 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
 			ops->set_mctrl(port, port->mctrl);
 			ops->start_tx(port);
 			spin_unlock_irq(&port->lock);
+			state->info->flags |= UIF_INITIALIZED;
 		} else {
 			/*
 			 * Failed to resume - maybe hardware went away?
 			 * Clear the "initialized" flag so we won't try
 			 * to call the low level drivers shutdown method.
 			 */
-			state->info->flags &= ~UIF_INITIALIZED;
 			uart_shutdown(state);
 		}
+
+		state->info->flags &= ~UIF_SUSPENDED;
 	}
 
 	mutex_unlock(&state->mutex);

drivers/serial/serial_cs.c

@@ -80,23 +80,16 @@ module_param(buggy_uart, int, 0444);
 
 /* Table of multi-port card ID's */
 
-struct multi_id {
-	u_short manfid;
-	u_short prodid;
+struct serial_quirk {
+	unsigned int manfid;
+	unsigned int prodid;
 	int multi;		/* 1 = multifunction, > 1 = # ports */
+	void (*config)(struct pcmcia_device *);
+	void (*setup)(struct pcmcia_device *, struct uart_port *);
+	void (*wakeup)(struct pcmcia_device *);
+	int (*post)(struct pcmcia_device *);
 };
 
-static const struct multi_id multi_id[] = {
-	{ MANFID_OMEGA,   PRODID_OMEGA_QSP_100,         4 },
-	{ MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232,    2 },
-	{ MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232_D1, 2 },
-	{ MANFID_QUATECH, PRODID_QUATECH_QUAD_RS232,    4 },
-	{ MANFID_SOCKET,  PRODID_SOCKET_DUAL_RS232,     2 },
-	{ MANFID_INTEL,   PRODID_INTEL_DUAL_RS232,      2 },
-	{ MANFID_NATINST, PRODID_NATINST_QUAD_RS232,    4 }
-};
-#define MULTI_COUNT (sizeof(multi_id)/sizeof(struct multi_id))
-
 struct serial_info {
 	struct pcmcia_device	*p_dev;
 	int			ndev;
@@ -107,6 +100,7 @@ struct serial_info {
 	int			c950ctrl;
 	dev_node_t		node[4];
 	int			line[4];
+	const struct serial_quirk *quirk;
 };
 
 struct serial_cfg_mem {
@@ -115,37 +109,165 @@ struct serial_cfg_mem {
 	u_char buf[256];
 };
 
+/*
+ * vers_1 5.0, "Brain Boxes", "2-Port RS232 card", "r6"
+ * manfid 0x0160, 0x0104
+ * This card appears to have a 14.7456MHz clock.
+ */
+static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port)
+{
+	port->uartclk = 14745600;
+}
 
-static int serial_config(struct pcmcia_device * link);
+static int quirk_post_ibm(struct pcmcia_device *link)
+{
+	conf_reg_t reg = { 0, CS_READ, 0x800, 0 };
+	int last_ret, last_fn;
 
+	last_ret = pcmcia_access_configuration_register(link, &reg);
+	if (last_ret) {
+		last_fn = AccessConfigurationRegister;
+		goto cs_failed;
+	}
+	reg.Action = CS_WRITE;
+	reg.Value = reg.Value | 1;
+	last_ret = pcmcia_access_configuration_register(link, &reg);
+	if (last_ret) {
+		last_fn = AccessConfigurationRegister;
+		goto cs_failed;
+	}
+	return 0;
 
-static void wakeup_card(struct serial_info *info)
+ cs_failed:
+	cs_error(link, last_fn, last_ret);
+	return -ENODEV;
+}
+
+/*
+ * Nokia cards are not really multiport cards.  Shouldn't this
+ * be handled by setting the quirk entry .multi = 0 | 1 ?
+ */
+static void quirk_config_nokia(struct pcmcia_device *link)
 {
-	int ctrl = info->c950ctrl;
-
-	if (info->manfid == MANFID_OXSEMI) {
-		outb(12, ctrl + 1);
-	} else if (info->manfid == MANFID_POSSIO && info->prodid == PRODID_POSSIO_GCC) {
-		/* request_region? oxsemi branch does no request_region too... */
-		/* This sequence is needed to properly initialize MC45 attached to OXCF950.
-		 * I tried decreasing these msleep()s, but it worked properly (survived
-		 * 1000 stop/start operations) with these timeouts (or bigger). */
-		outb(0xA, ctrl + 1);
-		msleep(100);
-		outb(0xE, ctrl + 1);
-		msleep(300);
-		outb(0xC, ctrl + 1);
-		msleep(100);
-		outb(0xE, ctrl + 1);
-		msleep(200);
-		outb(0xF, ctrl + 1);
-		msleep(100);
-		outb(0xE, ctrl + 1);
-		msleep(100);
-		outb(0xC, ctrl + 1);
+	struct serial_info *info = link->priv;
+
+	if (info->multi > 1)
+		info->multi = 1;
+}
+
+static void quirk_wakeup_oxsemi(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+
+	outb(12, info->c950ctrl + 1);
+}
+
+/* request_region? oxsemi branch does no request_region too... */
+/*
+ * This sequence is needed to properly initialize MC45 attached to OXCF950.
+ * I tried decreasing these msleep()s, but it worked properly (survived
+ * 1000 stop/start operations) with these timeouts (or bigger).
+ */
+static void quirk_wakeup_possio_gcc(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+	unsigned int ctrl = info->c950ctrl;
+
+	outb(0xA, ctrl + 1);
+	msleep(100);
+	outb(0xE, ctrl + 1);
+	msleep(300);
+	outb(0xC, ctrl + 1);
+	msleep(100);
+	outb(0xE, ctrl + 1);
+	msleep(200);
+	outb(0xF, ctrl + 1);
+	msleep(100);
+	outb(0xE, ctrl + 1);
+	msleep(100);
+	outb(0xC, ctrl + 1);
+}
+
+/*
+ * Socket Dual IO: this enables irq's for second port
+ */
+static void quirk_config_socket(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+
+	if (info->multi) {
+		link->conf.Present |= PRESENT_EXT_STATUS;
+		link->conf.ExtStatus = ESR_REQ_ATTN_ENA;
 	}
 }
 
+static const struct serial_quirk quirks[] = {
+	{
+		.manfid	= 0x0160,
+		.prodid	= 0x0104,
+		.multi	= -1,
+		.setup	= quirk_setup_brainboxes_0104,
+	}, {
+		.manfid	= MANFID_IBM,
+		.prodid	= ~0,
+		.multi	= -1,
+		.post	= quirk_post_ibm,
+	}, {
+		.manfid	= MANFID_INTEL,
+		.prodid	= PRODID_INTEL_DUAL_RS232,
+		.multi	= 2,
+	}, {
+		.manfid	= MANFID_NATINST,
+		.prodid	= PRODID_NATINST_QUAD_RS232,
+		.multi	= 4,
+	}, {
+		.manfid	= MANFID_NOKIA,
+		.prodid	= ~0,
+		.multi	= -1,
+		.config	= quirk_config_nokia,
+	}, {
+		.manfid	= MANFID_OMEGA,
+		.prodid	= PRODID_OMEGA_QSP_100,
+		.multi	= 4,
+	}, {
+		.manfid	= MANFID_OXSEMI,
+		.prodid	= ~0,
+		.multi	= -1,
+		.wakeup	= quirk_wakeup_oxsemi,
+	}, {
+		.manfid	= MANFID_POSSIO,
+		.prodid	= PRODID_POSSIO_GCC,
+		.multi	= -1,
+		.wakeup	= quirk_wakeup_possio_gcc,
+	}, {
+		.manfid	= MANFID_QUATECH,
+		.prodid	= PRODID_QUATECH_DUAL_RS232,
+		.multi	= 2,
+	}, {
+		.manfid	= MANFID_QUATECH,
+		.prodid	= PRODID_QUATECH_DUAL_RS232_D1,
+		.multi	= 2,
+	}, {
+		.manfid	= MANFID_QUATECH,
+		.prodid	= PRODID_QUATECH_QUAD_RS232,
+		.multi	= 4,
+	}, {
+		.manfid	= MANFID_SOCKET,
+		.prodid	= PRODID_SOCKET_DUAL_RS232,
+		.multi	= 2,
+		.config	= quirk_config_socket,
+	}, {
+		.manfid	= MANFID_SOCKET,
+		.prodid	= ~0,
+		.multi	= -1,
+		.config	= quirk_config_socket,
+	}
+};
+
+
+static int serial_config(struct pcmcia_device * link);
+
+
 /*======================================================================
 
     After a card is removed, serial_remove() will unregister
@@ -185,14 +307,14 @@ static int serial_suspend(struct pcmcia_device *link)
 
 static int serial_resume(struct pcmcia_device *link)
 {
-	if (pcmcia_dev_present(link)) {
-		struct serial_info *info = link->priv;
-		int i;
+	struct serial_info *info = link->priv;
+	int i;
 
-		for (i = 0; i < info->ndev; i++)
-			serial8250_resume_port(info->line[i]);
-		wakeup_card(info);
-	}
+	for (i = 0; i < info->ndev; i++)
+		serial8250_resume_port(info->line[i]);
+
+	if (info->quirk && info->quirk->wakeup)
+		info->quirk->wakeup(link);
 
 	return 0;
 }
@@ -278,6 +400,10 @@ static int setup_serial(struct pcmcia_device *handle, struct serial_info * info,
 	port.dev = &handle_to_dev(handle);
 	if (buggy_uart)
 		port.flags |= UPF_BUGGY_UART;
+
+	if (info->quirk && info->quirk->setup)
+		info->quirk->setup(handle, &port);
+
 	line = serial8250_register_port(&port);
 	if (line < 0) {
 		printk(KERN_NOTICE "serial_cs: serial8250_register_port() at "
@@ -433,6 +559,13 @@ static int simple_config(struct pcmcia_device *link)
 	}
 	if (info->multi && (info->manfid == MANFID_3COM))
 		link->conf.ConfigIndex &= ~(0x08);
+
+	/*
+	 * Apply any configuration quirks.
+	 */
+	if (info->quirk && info->quirk->config)
+		info->quirk->config(link);
+
 	i = pcmcia_request_configuration(link, &link->conf);
 	if (i != CS_SUCCESS) {
 		cs_error(link, RequestConfiguration, i);
@@ -521,11 +654,13 @@ static int multi_config(struct pcmcia_device * link)
 		cs_error(link, RequestIRQ, i);
 		link->irq.AssignedIRQ = 0;
 	}
-	/* Socket Dual IO: this enables irq's for second port */
-	if (info->multi && (info->manfid == MANFID_SOCKET)) {
-		link->conf.Present |= PRESENT_EXT_STATUS;
-		link->conf.ExtStatus = ESR_REQ_ATTN_ENA;
-	}
+
+	/*
+	 * Apply any configuration quirks.
+	 */
+	if (info->quirk && info->quirk->config)
+		info->quirk->config(link);
+
 	i = pcmcia_request_configuration(link, &link->conf);
 	if (i != CS_SUCCESS) {
 		cs_error(link, RequestConfiguration, i);
@@ -550,17 +685,19 @@ static int multi_config(struct pcmcia_device * link)
 					link->irq.AssignedIRQ);
 		}
 		info->c950ctrl = base2;
-		wakeup_card(info);
+
+		/*
+		 * FIXME: We really should wake up the port prior to
+		 * handing it over to the serial layer.
+		 */
+		if (info->quirk && info->quirk->wakeup)
+			info->quirk->wakeup(link);
+
 		rc = 0;
 		goto free_cfg_mem;
 	}
 
 	setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ);
-	/* The Nokia cards are not really multiport cards */
-	if (info->manfid == MANFID_NOKIA) {
-		rc = 0;
-		goto free_cfg_mem;
-	}
 	for (i = 0; i < info->multi - 1; i++)
 		setup_serial(link, info, base2 + (8 * i),
 				link->irq.AssignedIRQ);
@@ -622,13 +759,16 @@ static int serial_config(struct pcmcia_device * link)
 	tuple->DesiredTuple = CISTPL_MANFID;
 	if (first_tuple(link, tuple, parse) == CS_SUCCESS) {
 		info->manfid = parse->manfid.manf;
-		info->prodid = le16_to_cpu(buf[1]);
-		for (i = 0; i < MULTI_COUNT; i++)
-			if ((info->manfid == multi_id[i].manfid) &&
-			    (parse->manfid.card == multi_id[i].prodid))
+		info->prodid = parse->manfid.card;
+
+		for (i = 0; i < ARRAY_SIZE(quirks); i++)
+			if ((quirks[i].manfid == ~0 ||
+			     quirks[i].manfid == info->manfid) &&
+			    (quirks[i].prodid == ~0 ||
+			     quirks[i].prodid == info->prodid)) {
+				info->quirk = &quirks[i];
 				break;
-		if (i < MULTI_COUNT)
-			info->multi = multi_id[i].multi;
+			}
 	}
 
 	/* Another check for dual-serial cards: look for either serial or
@@ -648,6 +788,12 @@ static int serial_config(struct pcmcia_device * link)
 		}
 	}
 
+	/*
+	 * Apply any multi-port quirk.
+	 */
+	if (info->quirk && info->quirk->multi != -1)
+		info->multi = info->quirk->multi;
+
 	if (info->multi > 1)
 		multi_config(link);
 	else
@@ -656,21 +802,13 @@ static int serial_config(struct pcmcia_device * link)
 	if (info->ndev == 0)
 		goto failed;
 
-	if (info->manfid == MANFID_IBM) {
-		conf_reg_t reg = { 0, CS_READ, 0x800, 0 };
-		last_ret = pcmcia_access_configuration_register(link, &reg);
-		if (last_ret) {
-			last_fn = AccessConfigurationRegister;
-			goto cs_failed;
-		}
-		reg.Action = CS_WRITE;
-		reg.Value = reg.Value | 1;
-		last_ret = pcmcia_access_configuration_register(link, &reg);
-		if (last_ret) {
-			last_fn = AccessConfigurationRegister;
-			goto cs_failed;
-		}
-	}
+	/*
+	 * Apply any post-init quirk.  FIXME: This should really happen
+	 * before we register the port, since it might already be in use.
+	 */
+	if (info->quirk && info->quirk->post)
+		if (info->quirk->post(link))
+			goto failed;
 
 	link->dev_node = &info->node[0];
 	kfree(cfg_mem);

drivers/serial/serial_txx9.c

@@ -990,7 +990,6 @@ int __init early_serial_txx9_setup(struct uart_port *port)
 /**
  *	serial_txx9_suspend_port - suspend one serial port
  *	@line:  serial line number
- *      @level: the level of port suspension, as per uart_suspend_port
  *
  *	Suspend one serial port.
  */
@@ -1002,7 +1001,6 @@ static void serial_txx9_suspend_port(int line)
 /**
  *	serial_txx9_resume_port - resume one serial port
  *	@line:  serial line number
- *      @level: the level of port resumption, as per uart_resume_port
  *
  *	Resume one serial port.
  */

include/linux/serial_core.h

@@ -319,6 +319,7 @@ struct uart_info {
 #define UIF_CTS_FLOW		((__force uif_t) (1 << 26))
 #define UIF_NORMAL_ACTIVE	((__force uif_t) (1 << 29))
 #define UIF_INITIALIZED		((__force uif_t) (1 << 31))
+#define UIF_SUSPENDED		((__force uif_t) (1 << 30))
 
 	int			blocked_open;
 
@@ -414,7 +415,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch,
 #ifdef SUPPORT_SYSRQ
 	if (port->sysrq) {
 		if (ch && time_before(jiffies, port->sysrq)) {
-			handle_sysrq(ch, regs, NULL);
+			handle_sysrq(ch, regs, port->info->tty);
 			port->sysrq = 0;
 			return 1;
 		}