Pull release into acpica branch

34 files changed, 689 insertions, 396 deletions

diff --git a/drivers/serial/68328serial.c b/drivers/serial/68328serial.c
index 2efb317153c..67e9afa000c 100644
--- a/drivers/serial/68328serial.c
+++ b/drivers/serial/68328serial.c
@@ -34,6 +34,7 @@
 #include <linux/keyboard.h>
 #include <linux/init.h>
 #include <linux/pm.h>
+#include <linux/pm_legacy.h>
 #include <linux/bitops.h>
 #include <linux/delay.h>
 
@@ -1343,7 +1344,7 @@ static void show_serial_version(void)
 	printk("MC68328 serial driver version 1.00\n");
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_LEGACY
 /* Serial Power management
  *  The console (currently fixed at line 0) is a special case for power
  *  management because the kernel is so chatty. The console will be 
@@ -1393,7 +1394,7 @@ void startup_console(void)
 	struct m68k_serial *info = &m68k_soft[0];
 	startup(info);
 }
-#endif
+#endif /* CONFIG_PM_LEGACY */
 
 
 static struct tty_operations rs_ops = {
@@ -1486,7 +1487,7 @@ rs68328_init(void)
 			    IRQ_FLG_STD,
 			    "M68328_UART", NULL))
                 panic("Unable to attach 68328 serial interrupt\n");
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_LEGACY
 	    serial_pm[i] = pm_register(PM_SYS_DEV, PM_SYS_COM, serial_pm_callback);
 	    if (serial_pm[i])
 		    serial_pm[i]->data = info;
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 4d75cdfa0a0..d2bcd1f87cd 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -33,13 +33,14 @@
 #include <linux/sysrq.h>
 #include <linux/mca.h>
 #include <linux/delay.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/serial_reg.h>
 #include <linux/serial_core.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
+#include <linux/nmi.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -101,7 +102,7 @@ static unsigned int share_irqs = SERIAL8250_SHARE_IRQS;
 #define SERIAL_PORT_DFNS
 #endif
 
-static struct old_serial_port old_serial_port[] = {
+static const struct old_serial_port old_serial_port[] = {
 	SERIAL_PORT_DFNS /* defined in asm/serial.h */
 };
 
@@ -251,9 +252,53 @@ static const struct serial8250_config uart_config[] = {
 	},
 };
 
+#ifdef CONFIG_SERIAL_8250_AU1X00
+
+/* Au1x00 UART hardware has a weird register layout */
+static const u8 au_io_in_map[] = {
+	[UART_RX]  = 0,
+	[UART_IER] = 2,
+	[UART_IIR] = 3,
+	[UART_LCR] = 5,
+	[UART_MCR] = 6,
+	[UART_LSR] = 7,
+	[UART_MSR] = 8,
+};
+
+static const u8 au_io_out_map[] = {
+	[UART_TX]  = 1,
+	[UART_IER] = 2,
+	[UART_FCR] = 4,
+	[UART_LCR] = 5,
+	[UART_MCR] = 6,
+};
+
+/* sane hardware needs no mapping */
+static inline int map_8250_in_reg(struct uart_8250_port *up, int offset)
+{
+	if (up->port.iotype != UPIO_AU)
+		return offset;
+	return au_io_in_map[offset];
+}
+
+static inline int map_8250_out_reg(struct uart_8250_port *up, int offset)
+{
+	if (up->port.iotype != UPIO_AU)
+		return offset;
+	return au_io_out_map[offset];
+}
+
+#else
+
+/* sane hardware needs no mapping */
+#define map_8250_in_reg(up, offset) (offset)
+#define map_8250_out_reg(up, offset) (offset)
+
+#endif
+
 static _INLINE_ unsigned int serial_in(struct uart_8250_port *up, int offset)
 {
-	offset <<= up->port.regshift;
+	offset = map_8250_in_reg(up, offset) << up->port.regshift;
 
 	switch (up->port.iotype) {
 	case UPIO_HUB6:
@@ -266,6 +311,11 @@ static _INLINE_ unsigned int serial_in(struct uart_8250_port *up, int offset)
 	case UPIO_MEM32:
 		return readl(up->port.membase + offset);
 
+#ifdef CONFIG_SERIAL_8250_AU1X00
+	case UPIO_AU:
+		return __raw_readl(up->port.membase + offset);
+#endif
+
 	default:
 		return inb(up->port.iobase + offset);
 	}
@@ -274,7 +324,7 @@ static _INLINE_ unsigned int serial_in(struct uart_8250_port *up, int offset)
 static _INLINE_ void
 serial_out(struct uart_8250_port *up, int offset, int value)
 {
-	offset <<= up->port.regshift;
+	offset = map_8250_out_reg(up, offset) << up->port.regshift;
 
 	switch (up->port.iotype) {
 	case UPIO_HUB6:
@@ -290,6 +340,12 @@ serial_out(struct uart_8250_port *up, int offset, int value)
 		writel(value, up->port.membase + offset);
 		break;
 
+#ifdef CONFIG_SERIAL_8250_AU1X00
+	case UPIO_AU:
+		__raw_writel(value, up->port.membase + offset);
+		break;
+#endif
+
 	default:
 		outb(value, up->port.iobase + offset);
 	}
@@ -910,6 +966,13 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 		}
 	}
 #endif
+
+#ifdef CONFIG_SERIAL_8250_AU1X00
+	/* if access method is AU, it is a 16550 with a quirk */
+	if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU)
+		up->bugs |= UART_BUG_NOMSR;
+#endif
+
 	serial_outp(up, UART_LCR, save_lcr);
 
 	if (up->capabilities != uart_config[up->port.type].flags) {
@@ -936,7 +999,10 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 	serial_outp(up, UART_MCR, save_mcr);
 	serial8250_clear_fifos(up);
 	(void)serial_in(up, UART_RX);
-	serial_outp(up, UART_IER, 0);
+	if (up->capabilities & UART_CAP_UUE)
+		serial_outp(up, UART_IER, UART_IER_UUE);
+	else
+		serial_outp(up, UART_IER, 0);
 
  out:	
 	spin_unlock_irqrestore(&up->port.lock, flags);
@@ -1057,6 +1123,10 @@ static void serial8250_enable_ms(struct uart_port *port)
 {
 	struct uart_8250_port *up = (struct uart_8250_port *)port;
 
+	/* no MSR capabilities */
+	if (up->bugs & UART_BUG_NOMSR)
+		return;
+
 	up->ier |= UART_IER_MSI;
 	serial_out(up, UART_IER, up->ier);
 }
@@ -1774,7 +1844,8 @@ serial8250_set_termios(struct uart_port *port, struct termios *termios,
 	 * CTS flow control flag and modem status interrupts
 	 */
 	up->ier &= ~UART_IER_MSI;
-	if (UART_ENABLE_MS(&up->port, termios->c_cflag))
+	if (!(up->bugs & UART_BUG_NOMSR) &&
+			UART_ENABLE_MS(&up->port, termios->c_cflag))
 		up->ier |= UART_IER_MSI;
 	if (up->capabilities & UART_CAP_UUE)
 		up->ier |= UART_IER_UUE | UART_IER_RTOIE;
@@ -2141,6 +2212,8 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
 	unsigned int ier;
 	int i;
 
+	touch_nmi_watchdog();
+
 	/*
 	 *	First save the UER then disable the interrupts
 	 */
@@ -2311,9 +2384,9 @@ void serial8250_resume_port(int line)
  * list is terminated with a zero flags entry, which means we expect
  * all entries to have at least UPF_BOOT_AUTOCONF set.
  */
-static int __devinit serial8250_probe(struct device *dev)
+static int __devinit serial8250_probe(struct platform_device *dev)
 {
-	struct plat_serial8250_port *p = dev->platform_data;
+	struct plat_serial8250_port *p = dev->dev.platform_data;
 	struct uart_port port;
 	int ret, i;
 
@@ -2329,12 +2402,12 @@ static int __devinit serial8250_probe(struct device *dev)
 		port.flags	= p->flags;
 		port.mapbase	= p->mapbase;
 		port.hub6	= p->hub6;
-		port.dev	= dev;
+		port.dev	= &dev->dev;
 		if (share_irqs)
 			port.flags |= UPF_SHARE_IRQ;
 		ret = serial8250_register_port(&port);
 		if (ret < 0) {
-			dev_err(dev, "unable to register port at index %d "
+			dev_err(&dev->dev, "unable to register port at index %d "
 				"(IO%lx MEM%lx IRQ%d): %d\n", i,
 				p->iobase, p->mapbase, p->irq, ret);
 		}
@@ -2345,60 +2418,55 @@ static int __devinit serial8250_probe(struct device *dev)
 /*
  * Remove serial ports registered against a platform device.
  */
-static int __devexit serial8250_remove(struct device *dev)
+static int __devexit serial8250_remove(struct platform_device *dev)
 {
 	int i;
 
 	for (i = 0; i < UART_NR; i++) {
 		struct uart_8250_port *up = &serial8250_ports[i];
 
-		if (up->port.dev == dev)
+		if (up->port.dev == &dev->dev)
 			serial8250_unregister_port(i);
 	}
 	return 0;
 }
 
-static int serial8250_suspend(struct device *dev, pm_message_t state, u32 level)
+static int serial8250_suspend(struct platform_device *dev, pm_message_t state)
 {
 	int i;
 
-	if (level != SUSPEND_DISABLE)
-		return 0;
-
 	for (i = 0; i < UART_NR; i++) {
 		struct uart_8250_port *up = &serial8250_ports[i];
 
-		if (up->port.type != PORT_UNKNOWN && up->port.dev == dev)
+		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)
 			uart_suspend_port(&serial8250_reg, &up->port);
 	}
 
 	return 0;
 }
 
-static int serial8250_resume(struct device *dev, u32 level)
+static int serial8250_resume(struct platform_device *dev)
 {
 	int i;
 
-	if (level != RESUME_ENABLE)
-		return 0;
-
 	for (i = 0; i < UART_NR; i++) {
 		struct uart_8250_port *up = &serial8250_ports[i];
 
-		if (up->port.type != PORT_UNKNOWN && up->port.dev == dev)
+		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)
 			uart_resume_port(&serial8250_reg, &up->port);
 	}
 
 	return 0;
 }
 
-static struct device_driver serial8250_isa_driver = {
-	.name		= "serial8250",
-	.bus		= &platform_bus_type,
+static struct platform_driver serial8250_isa_driver = {
 	.probe		= serial8250_probe,
 	.remove		= __devexit_p(serial8250_remove),
 	.suspend	= serial8250_suspend,
 	.resume		= serial8250_resume,
+	.driver		= {
+		.name	= "serial8250",
+	},
 };
 
 /*
@@ -2544,7 +2612,7 @@ static int __init serial8250_init(void)
 
 	serial8250_register_ports(&serial8250_reg, &serial8250_isa_devs->dev);
 
-	ret = driver_register(&serial8250_isa_driver);
+	ret = platform_driver_register(&serial8250_isa_driver);
 	if (ret == 0)
 		goto out;
 
@@ -2566,7 +2634,7 @@ static void __exit serial8250_exit(void)
 	 */
 	serial8250_isa_devs = NULL;
 
-	driver_unregister(&serial8250_isa_driver);
+	platform_driver_unregister(&serial8250_isa_driver);
 	platform_device_unregister(isa_dev);
 
 	uart_unregister_driver(&serial8250_reg);
diff --git a/drivers/serial/8250.h b/drivers/serial/8250.h
index b1b459efda5..a607b98016d 100644
--- a/drivers/serial/8250.h
+++ b/drivers/serial/8250.h
@@ -49,6 +49,7 @@ struct serial8250_config {
 
 #define UART_BUG_QUOT	(1 << 0)	/* UART has buggy quot LSB */
 #define UART_BUG_TXEN	(1 << 1)	/* UART has buggy TX IIR status */
+#define UART_BUG_NOMSR	(1 << 2)	/* UART has buggy MSR status bits (Au1x00) */
 
 #if defined(__i386__) && (defined(CONFIG_M386) || defined(CONFIG_M486))
 #define _INLINE_ inline
diff --git a/drivers/serial/8250_au1x00.c b/drivers/serial/8250_au1x00.c
new file mode 100644
index 00000000000..06ae8fbcc94
--- /dev/null
+++ b/drivers/serial/8250_au1x00.c
@@ -0,0 +1,102 @@
+/*
+ * Serial Device Initialisation for Au1x00
+ *
+ * (C) Copyright Embedded Alley Solutions, Inc 2005
+ * Author: Pantelis Antoniou <pantelis@embeddedalley.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/serial_core.h>
+#include <linux/signal.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <linux/serial_8250.h>
+
+#include <asm/mach-au1x00/au1000.h>
+
+#include "8250.h"
+
+#define PORT(_base, _irq)				\
+	{						\
+		.iobase		= _base,		\
+		.membase	= (void __iomem *)_base,\
+		.mapbase	= _base,		\
+		.irq		= _irq,			\
+		.uartclk	= 0,	/* filled */	\
+		.regshift	= 2,			\
+		.iotype		= UPIO_AU,		\
+		.flags		= UPF_SKIP_TEST | 	\
+				  UPF_IOREMAP,		\
+	}
+
+static struct plat_serial8250_port au1x00_data[] = {
+#if defined(CONFIG_SOC_AU1000)
+	PORT(UART0_ADDR, AU1000_UART0_INT),
+	PORT(UART1_ADDR, AU1000_UART1_INT),
+	PORT(UART2_ADDR, AU1000_UART2_INT),
+	PORT(UART3_ADDR, AU1000_UART3_INT),
+#elif defined(CONFIG_SOC_AU1500)
+	PORT(UART0_ADDR, AU1500_UART0_INT),
+	PORT(UART3_ADDR, AU1500_UART3_INT),
+#elif defined(CONFIG_SOC_AU1100)
+	PORT(UART0_ADDR, AU1100_UART0_INT),
+	PORT(UART1_ADDR, AU1100_UART1_INT),
+	PORT(UART2_ADDR, AU1100_UART2_INT),
+	PORT(UART3_ADDR, AU1100_UART3_INT),
+#elif defined(CONFIG_SOC_AU1550)
+	PORT(UART0_ADDR, AU1550_UART0_INT),
+	PORT(UART1_ADDR, AU1550_UART1_INT),
+	PORT(UART2_ADDR, AU1550_UART2_INT),
+	PORT(UART3_ADDR, AU1550_UART3_INT),
+#elif defined(CONFIG_SOC_AU1200)
+	PORT(UART0_ADDR, AU1200_UART0_INT),
+	PORT(UART1_ADDR, AU1200_UART1_INT),
+#endif
+	{ },
+};
+
+static struct platform_device au1x00_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_AU1X00,
+	.dev			= {
+		.platform_data	= au1x00_data,
+	},
+};
+
+static int __init au1x00_init(void)
+{
+	int i;
+	unsigned int uartclk;
+
+	/* get uart clock */
+	uartclk = get_au1x00_uart_baud_base() * 16;
+
+	/* fill up uartclk */
+	for (i = 0; au1x00_data[i].flags ; i++)
+		au1x00_data[i].uartclk = uartclk;
+
+	return platform_device_register(&au1x00_device);
+}
+
+/* XXX: Yes, I know this doesn't yet work. */
+static void __exit au1x00_exit(void)
+{
+	platform_device_unregister(&au1x00_device);
+}
+
+module_init(au1x00_init);
+module_exit(au1x00_exit);
+
+MODULE_AUTHOR("Pantelis Antoniou <pantelis@embeddedalley.com>");
+MODULE_DESCRIPTION("8250 serial probe module for Au1x000 cards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/serial/8250_early.c b/drivers/serial/8250_early.c
index b7a5dd71022..59ba5d993b4 100644
--- a/drivers/serial/8250_early.c
+++ b/drivers/serial/8250_early.c
@@ -164,7 +164,7 @@ static int __init parse_options(struct early_uart_device *device, char *options)
 
 	if ((options = strchr(options, ','))) {
 		options++;
-		device->baud = simple_strtoul(options, 0, 0);
+		device->baud = simple_strtoul(options, NULL, 0);
 		length = min(strcspn(options, " "), sizeof(device->options));
 		strncpy(device->options, options, length);
 	} else {
diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
index 431aa5761a7..8b4947933d9 100644
--- a/drivers/serial/8250_gsc.c
+++ b/drivers/serial/8250_gsc.c
@@ -29,7 +29,6 @@
 static int __init 
 serial_init_chip(struct parisc_device *dev)
 {
-	static int serial_line_nr;
 	struct uart_port port;
 	unsigned long address;
 	int err;
@@ -42,12 +41,13 @@ serial_init_chip(struct parisc_device *dev)
 		 */
 		if (parisc_parent(dev)->id.hw_type != HPHW_IOA) {
 			printk(KERN_INFO "Serial: device 0x%lx not configured.\n"
-				"Enable support for Wax, Lasi, Asp or Dino.\n", dev->hpa);
+				"Enable support for Wax, Lasi, Asp or Dino.\n",
+				dev->hpa.start);
 		}
 		return -ENODEV;
 	}
 
-	address = dev->hpa;
+	address = dev->hpa.start;
 	if (dev->id.sversion != 0x8d) {
 		address += 0x800;
 	}
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index 0e21f583690..8d92adfbb8b 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -152,6 +152,7 @@ static int __devinit pci_hp_diva_init(struct pci_dev *dev)
 		rc = 4;
 		break;
 	case PCI_DEVICE_ID_HP_DIVA_POWERBAR:
+	case PCI_DEVICE_ID_HP_DIVA_HURRICANE:
 		rc = 1;
 		break;
 	}
@@ -226,8 +227,10 @@ static int __devinit pci_plx9050_init(struct pci_dev *dev)
 	}
 
 	irq_config = 0x41;
-	if (dev->vendor == PCI_VENDOR_ID_PANACOM)
+	if (dev->vendor == PCI_VENDOR_ID_PANACOM ||
+	    dev->subsystem_vendor == PCI_SUBVENDOR_ID_EXSYS) {
 		irq_config = 0x43;
+	}
 	if ((dev->vendor == PCI_VENDOR_ID_PLX) &&
 	    (dev->device == PCI_DEVICE_ID_PLX_ROMULUS)) {
 		/*
@@ -465,7 +468,7 @@ static unsigned short timedia_eight_port[] = {
 	0x9167, 0x9168, 0xA066, 0xA167, 0xA168, 0
 };
 
-static struct timedia_struct {
+static const struct timedia_struct {
 	int num;
 	unsigned short *ids;
 } timedia_data[] = {
@@ -664,6 +667,15 @@ static struct pci_serial_quirk pci_serial_quirks[] = {
 	{
 		.vendor		= PCI_VENDOR_ID_PLX,
 		.device		= PCI_DEVICE_ID_PLX_9050,
+		.subvendor	= PCI_SUBVENDOR_ID_EXSYS,
+		.subdevice	= PCI_SUBDEVICE_ID_EXSYS_4055,
+		.init		= pci_plx9050_init,
+		.setup		= pci_default_setup,
+		.exit		= __devexit_p(pci_plx9050_exit),
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_PLX,
+		.device		= PCI_DEVICE_ID_PLX_9050,
 		.subvendor	= PCI_SUBVENDOR_ID_KEYSPAN,
 		.subdevice	= PCI_SUBDEVICE_ID_KEYSPAN_SX2,
 		.init		= pci_plx9050_init,
@@ -927,6 +939,7 @@ enum pci_board_num_t {
 	pbn_panacom,
 	pbn_panacom2,
 	pbn_panacom4,
+	pbn_exsys_4055,
 	pbn_plx_romulus,
 	pbn_oxsemi,
 	pbn_intel_i960,
@@ -1292,6 +1305,13 @@ static struct pciserial_board pci_boards[] __devinitdata = {
 		.reg_shift	= 7,
 	},
 
+	[pbn_exsys_4055] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 4,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+
 	/* I think this entry is broken - the first_offset looks wrong --rmk */
 	[pbn_plx_romulus] = {
 		.flags		= FL_BASE2,
@@ -1853,6 +1873,10 @@ static struct pci_device_id serial_pci_tbl[] = {
 		PCI_SUBVENDOR_ID_CHASE_PCIRAS,
 		PCI_SUBDEVICE_ID_CHASE_PCIRAS8, 0, 0, 
 		pbn_b2_8_460800 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_EXSYS,
+		PCI_SUBDEVICE_ID_EXSYS_4055, 0, 0,
+		pbn_exsys_4055 },
 	/*
 	 * Megawolf Romulus PCI Serial Card, from Mike Hudson
 	 * (Exoray@isys.ca)
diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index 6b321e82caf..b79ed0665d5 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -272,8 +272,12 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	{	"SUP1421",		0	},
 	/* SupraExpress 33.6 Data/Fax PnP modem */
 	{	"SUP1590",		0	},
+	/* SupraExpress 336i Sp ASVD */
+	{	"SUP1620",		0	},
 	/* SupraExpress 33.6 Data/Fax PnP modem */
 	{	"SUP1760",		0	},
+	/* SupraExpress 56i Sp Intl */
+	{	"SUP2171",		0	},
 	/* Phoebe Micro */
 	/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
 	{	"TEX0011",		0	},
@@ -319,6 +323,8 @@ static const struct pnp_device_id pnp_dev_table[] = {
 	{	"USR9180",		0	},
 	/* U.S. Robotics 56K Voice INT PnP*/
 	{	"USR9190",		0	},
+	/* HP Compaq Tablet PC tc1100 Wacom tablet */
+	{	"WACF005",		0	},
 	/* Rockwell's (PORALiNK) 33600 INT PNP */
 	{	"WCI0003",		0	},
 	/* Unkown PnP modems */
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index b745a1b9e83..ad47c1b84c3 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -207,6 +207,14 @@ config SERIAL_8250_ACORN
 	  system, say Y to this option.  The driver can handle 1, 2, or 3 port
 	  cards.  If unsure, say N.
 
+config SERIAL_8250_AU1X00
+	bool "AU1X00 serial port support"
+	depends on SERIAL_8250 != n && SOC_AU1X00
+	help
+	  If you have an Au1x00 board and want to use the serial port, say Y
+	  to this option.  The driver can handle 1 or 2 serial ports.
+	  If unsure, say N.
+
 comment "Non-8250 serial port support"
 
 config SERIAL_AMBA_PL010
@@ -499,7 +507,7 @@ config SERIAL_SUNSU_CONSOLE
 
 config SERIAL_MUX
 	tristate "Serial MUX support"
-	depends on PARISC
+	depends on GSC
 	select SERIAL_CORE
 	default y
 	---help---
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 11c7dc483f9..d7c7c7180e3 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_SERIAL_8250_ACCENT) += 8250_accent.o
 obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o
 obj-$(CONFIG_SERIAL_8250_HUB6) += 8250_hub6.o
 obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o
+obj-$(CONFIG_SERIAL_8250_AU1X00) += 8250_au1x00.o
 obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
 obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
 obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 679e678c7e6..ddd0307fece 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -50,6 +50,7 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/hardware.h>
 #include <asm/hardware/amba.h>
 #include <asm/hardware/amba_serial.h>
 
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index 1ff629c7475..89d7bd3eaee 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -49,7 +49,7 @@
 #include <linux/serial.h>
 
 #include <asm/io.h>
-#include <asm/irq.h>
+#include <asm/sizes.h>
 #include <asm/hardware/amba.h>
 #include <asm/hardware/clock.h>
 #include <asm/hardware/amba_serial.h>
@@ -62,7 +62,8 @@
 
 #define AMBA_ISR_PASS_LIMIT	256
 
-#define UART_DUMMY_RSR_RX	256
+#define UART_DR_ERROR		(UART011_DR_OE|UART011_DR_BE|UART011_DR_PE|UART011_DR_FE)
+#define UART_DUMMY_DR_RX	(1 << 16)
 
 /*
  * We wrap our port structure around the generic uart_port.
@@ -115,7 +116,7 @@ pl011_rx_chars(struct uart_amba_port *uap)
 #endif
 {
 	struct tty_struct *tty = uap->port.info->tty;
-	unsigned int status, ch, flag, rsr, max_count = 256;
+	unsigned int status, ch, flag, max_count = 256;
 
 	status = readw(uap->port.membase + UART01x_FR);
 	while ((status & UART01x_FR_RXFE) == 0 && max_count--) {
@@ -128,7 +129,7 @@ pl011_rx_chars(struct uart_amba_port *uap)
 			 */
 		}
 
-		ch = readw(uap->port.membase + UART01x_DR);
+		ch = readw(uap->port.membase + UART01x_DR) | UART_DUMMY_DR_RX;
 		flag = TTY_NORMAL;
 		uap->port.icount.rx++;
 
@@ -136,34 +137,33 @@ pl011_rx_chars(struct uart_amba_port *uap)
 		 * Note that the error handling code is
 		 * out of the main execution path
 		 */
-		rsr = readw(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
-		if (unlikely(rsr & UART01x_RSR_ANY)) {
-			if (rsr & UART01x_RSR_BE) {
-				rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
+		if (unlikely(ch & UART_DR_ERROR)) {
+			if (ch & UART011_DR_BE) {
+				ch &= ~(UART011_DR_FE | UART011_DR_PE);
 				uap->port.icount.brk++;
 				if (uart_handle_break(&uap->port))
 					goto ignore_char;
-			} else if (rsr & UART01x_RSR_PE)
+			} else if (ch & UART011_DR_PE)
 				uap->port.icount.parity++;
-			else if (rsr & UART01x_RSR_FE)
+			else if (ch & UART011_DR_FE)
 				uap->port.icount.frame++;
-			if (rsr & UART01x_RSR_OE)
+			if (ch & UART011_DR_OE)
 				uap->port.icount.overrun++;
 
-			rsr &= uap->port.read_status_mask;
+			ch &= uap->port.read_status_mask;
 
-			if (rsr & UART01x_RSR_BE)
+			if (ch & UART011_DR_BE)
 				flag = TTY_BREAK;
-			else if (rsr & UART01x_RSR_PE)
+			else if (ch & UART011_DR_PE)
 				flag = TTY_PARITY;
-			else if (rsr & UART01x_RSR_FE)
+			else if (ch & UART011_DR_FE)
 				flag = TTY_FRAME;
 		}
 
 		if (uart_handle_sysrq_char(&uap->port, ch, regs))
 			goto ignore_char;
 
-		uart_insert_char(&uap->port, rsr, UART01x_RSR_OE, ch, flag);
+		uart_insert_char(&uap->port, ch, UART011_DR_OE, ch, flag);
 
 	ignore_char:
 		status = readw(uap->port.membase + UART01x_FR);
@@ -475,33 +475,33 @@ pl011_set_termios(struct uart_port *port, struct termios *termios,
 	 */
 	uart_update_timeout(port, termios->c_cflag, baud);
 
-	port->read_status_mask = UART01x_RSR_OE;
+	port->read_status_mask = UART011_DR_OE | 255;
 	if (termios->c_iflag & INPCK)
-		port->read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+		port->read_status_mask |= UART011_DR_FE | UART011_DR_PE;
 	if (termios->c_iflag & (BRKINT | PARMRK))
-		port->read_status_mask |= UART01x_RSR_BE;
+		port->read_status_mask |= UART011_DR_BE;
 
 	/*
 	 * Characters to ignore
 	 */
 	port->ignore_status_mask = 0;
 	if (termios->c_iflag & IGNPAR)
-		port->ignore_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+		port->ignore_status_mask |= UART011_DR_FE | UART011_DR_PE;
 	if (termios->c_iflag & IGNBRK) {
-		port->ignore_status_mask |= UART01x_RSR_BE;
+		port->ignore_status_mask |= UART011_DR_BE;
 		/*
 		 * If we're ignoring parity and break indicators,
 		 * ignore overruns too (for real raw support).
 		 */
 		if (termios->c_iflag & IGNPAR)
-			port->ignore_status_mask |= UART01x_RSR_OE;
+			port->ignore_status_mask |= UART011_DR_OE;
 	}
 
 	/*
 	 * Ignore all characters if CREAD is not set.
 	 */
 	if ((termios->c_cflag & CREAD) == 0)
-		port->ignore_status_mask |= UART_DUMMY_RSR_RX;
+		port->ignore_status_mask |= UART_DUMMY_DR_RX;
 
 	if (UART_ENABLE_MS(port, termios->c_cflag))
 		pl011_enable_ms(port);
diff --git a/drivers/serial/clps711x.c b/drivers/serial/clps711x.c
index 78c1f36ad9b..87ef368384f 100644
--- a/drivers/serial/clps711x.c
+++ b/drivers/serial/clps711x.c
@@ -98,7 +98,7 @@ static irqreturn_t clps711xuart_int_rx(int irq, void *dev_id, struct pt_regs *re
 {
 	struct uart_port *port = dev_id;
 	struct tty_struct *tty = port->info->tty;
-	unsigned int status, ch, flg, ignored = 0;
+	unsigned int status, ch, flg;
 
 	status = clps_readl(SYSFLG(port));
 	while (!(status & SYSFLG_URXFE)) {
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index 25825f2aba2..987d22b53c2 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -7,7 +7,7 @@
  *  Based on ppc8xx.c by Thomas Gleixner
  *  Based on drivers/serial/amba.c by Russell King
  *
- *  Maintainer: Kumar Gala (kumar.gala@freescale.com) (CPM2)
+ *  Maintainer: Kumar Gala (galak@kernel.crashing.org) (CPM2)
  *              Pantelis Antoniou (panto@intracom.gr) (CPM1)
  *
  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index 4b0786e7eb7..d789ee55cbb 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -3,7 +3,7 @@
  *
  *  Driver for CPM (SCC/SMC) serial ports; CPM1 definitions
  *
- *  Maintainer: Kumar Gala (kumar.gala@freescale.com) (CPM2)
+ *  Maintainer: Kumar Gala (galak@kernel.crashing.org) (CPM2)
  *              Pantelis Antoniou (panto@intracom.gr) (CPM1)
  *
  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index 15ad58d9488..fd9e53ed3fe 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -3,7 +3,7 @@
  *
  *  Driver for CPM (SCC/SMC) serial ports; CPM2 definitions
  *
- *  Maintainer: Kumar Gala (kumar.gala@freescale.com) (CPM2)
+ *  Maintainer: Kumar Gala (galak@kernel.crashing.org) (CPM2)
  *              Pantelis Antoniou (panto@intracom.gr) (CPM1)
  * 
  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 40d3e7139cf..08c42c00018 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -4416,10 +4416,8 @@ rs_close(struct tty_struct *tty, struct file * filp)
 	info->event = 0;
 	info->tty = 0;
 	if (info->blocked_open) {
-		if (info->close_delay) {
-			set_current_state(TASK_INTERRUPTIBLE);
-			schedule_timeout(info->close_delay);
-		}
+		if (info->close_delay)
+			schedule_timeout_interruptible(info->close_delay);
 		wake_up_interruptible(&info->open_wait);
 	}
 	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
@@ -4469,8 +4467,7 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
 	while (info->xmit.head != info->xmit.tail || /* More in send queue */
 	       (*info->ostatusadr & 0x007f) ||  /* more in FIFO */
 	       (elapsed_usec < 2*info->char_time_usec)) {
-		set_current_state(TASK_INTERRUPTIBLE);
-		schedule_timeout(1);
+		schedule_timeout_interruptible(1);
 		if (signal_pending(current))
 			break;
 		if (timeout && time_after(jiffies, orig_jiffies + timeout))
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index e63b9dffc8d..4d8516d1bb7 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -1,9 +1,9 @@
 /*
- * dz.c: Serial port driver for DECStations equiped 
+ * dz.c: Serial port driver for DECStations equiped
  *       with the DZ chipset.
  *
- * Copyright (C) 1998 Olivier A. D. Lebaillif 
- *             
+ * Copyright (C) 1998 Olivier A. D. Lebaillif
+ *
  * Email: olivier.lebaillif@ifrsys.com
  *
  * [31-AUG-98] triemer
@@ -11,14 +11,14 @@
  * removed base_addr code - moving address assignment to setup.c
  * Changed name of dz_init to rs_init to be consistent with tc code
  * [13-NOV-98] triemer fixed code to receive characters
- *    after patches by harald to irq code.  
+ *    after patches by harald to irq code.
  * [09-JAN-99] triemer minor fix for schedule - due to removal of timeout
  *            field from "current" - somewhere between 2.1.121 and 2.1.131
  Qua Jun 27 15:02:26 BRT 2001
  * [27-JUN-2001] Arnaldo Carvalho de Melo <acme@conectiva.com.br> - cleanups
- *  
- * Parts (C) 1999 David Airlie, airlied@linux.ie 
- * [07-SEP-99] Bugfixes 
+ *
+ * Parts (C) 1999 David Airlie, airlied@linux.ie
+ * [07-SEP-99] Bugfixes
  *
  * [06-Jan-2002] Russell King <rmk@arm.linux.org.uk>
  * Converted to new serial core
@@ -64,7 +64,7 @@ static struct dz_port dz_ports[DZ_NB_PORT];
 
 #ifdef DEBUG_DZ
 /*
- * debugging code to send out chars via prom 
+ * debugging code to send out chars via prom
  */
 static void debug_console(const char *s, int count)
 {
@@ -82,7 +82,7 @@ static void debug_console(const char *s, int count)
  * ------------------------------------------------------------
  * dz_in () and dz_out ()
  *
- * These routines are used to access the registers of the DZ 
+ * These routines are used to access the registers of the DZ
  * chip, hiding relocation differences between implementation.
  * ------------------------------------------------------------
  */
@@ -106,8 +106,8 @@ static inline void dz_out(struct dz_port *dport, unsigned offset,
  * ------------------------------------------------------------
  * rs_stop () and rs_start ()
  *
- * These routines are called before setting or resetting 
- * tty->stopped. They enable or disable transmitter interrupts, 
+ * These routines are called before setting or resetting
+ * tty->stopped. They enable or disable transmitter interrupts,
  * as necessary.
  * ------------------------------------------------------------
  */
@@ -156,17 +156,17 @@ static void dz_enable_ms(struct uart_port *port)
 
 /*
  * ------------------------------------------------------------
- * Here starts the interrupt handling routines.  All of the 
- * following subroutines are declared as inline and are folded 
- * into dz_interrupt.  They were separated out for readability's 
- * sake. 
+ * Here starts the interrupt handling routines.  All of the
+ * following subroutines are declared as inline and are folded
+ * into dz_interrupt.  They were separated out for readability's
+ * sake.
  *
  * Note: rs_interrupt() is a "fast" interrupt, which means that it
  * runs with interrupts turned off.  People who may want to modify
  * rs_interrupt() should try to keep the interrupt handler as fast as
  * possible.  After you are done making modifications, it is not a bad
  * idea to do:
- * 
+ *
  *	make drivers/serial/dz.s
  *
  * and look at the resulting assemble code in dz.s.
@@ -403,7 +403,7 @@ static void dz_set_mctrl(struct uart_port *uport, unsigned int mctrl)
  * startup ()
  *
  * various initialization tasks
- * ------------------------------------------------------------------- 
+ * -------------------------------------------------------------------
  */
 static int dz_startup(struct uart_port *uport)
 {
@@ -430,13 +430,13 @@ static int dz_startup(struct uart_port *uport)
 	return 0;
 }
 
-/* 
+/*
  * -------------------------------------------------------------------
  * shutdown ()
  *
  * This routine will shutdown a serial port; interrupts are disabled, and
  * DTR is dropped if the hangup on close termio flag is on.
- * ------------------------------------------------------------------- 
+ * -------------------------------------------------------------------
  */
 static void dz_shutdown(struct uart_port *uport)
 {
@@ -451,7 +451,7 @@ static void dz_shutdown(struct uart_port *uport)
  *          release the bus after transmitting. This must be done when
  *          the transmit shift register is empty, not be done when the
  *          transmit holding register is empty.  This functionality
- *          allows an RS485 driver to be written in user space. 
+ *          allows an RS485 driver to be written in user space.
  */
 static unsigned int dz_tx_empty(struct uart_port *uport)
 {
@@ -645,9 +645,9 @@ static void __init dz_init_ports(void)
 
 	if (mips_machtype == MACH_DS23100 ||
 	    mips_machtype == MACH_DS5100)
-		base = (unsigned long) KN01_DZ11_BASE;
+		base = CKSEG1ADDR(KN01_SLOT_BASE + KN01_DZ11);
 	else
-		base = (unsigned long) KN02_DZ11_BASE;
+		base = CKSEG1ADDR(KN02_SLOT_BASE + KN02_DZ11);
 
 	for (i = 0, dport = dz_ports; i < DZ_NB_PORT; i++, dport++) {
 		spin_lock_init(&dport->port.lock);
@@ -695,13 +695,13 @@ static void dz_console_put_char(struct dz_port *dport, unsigned char ch)
 
 	spin_unlock_irqrestore(&dport->port.lock, flags);
 }
-/* 
+/*
  * -------------------------------------------------------------------
  * dz_console_print ()
  *
  * dz_console_print is registered for printk.
  * The console must be locked when we get here.
- * ------------------------------------------------------------------- 
+ * -------------------------------------------------------------------
  */
 static void dz_console_print(struct console *cons,
 			     const char *str,
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 4c985e6b378..83c4c121658 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -36,7 +36,7 @@
 #include <linux/init.h>
 #include <linux/console.h>
 #include <linux/sysrq.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/serial_core.h>
@@ -73,7 +73,7 @@ struct imx_port {
 	struct uart_port	port;
 	struct timer_list	timer;
 	unsigned int		old_status;
-	int txirq,rxirq;
+	int txirq,rxirq,rtsirq;
 };
 
 /*
@@ -181,6 +181,22 @@ static void imx_start_tx(struct uart_port *port)
 		imx_transmit_buffer(sport);
 }
 
+static irqreturn_t imx_rtsint(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct imx_port *sport = (struct imx_port *)dev_id;
+	unsigned int val = USR1((u32)sport->port.membase)&USR1_RTSS;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sport->port.lock, flags);
+
+	USR1((u32)sport->port.membase) = USR1_RTSD;
+	uart_handle_cts_change(&sport->port, !!val);
+	wake_up_interruptible(&sport->port.info->delta_msr_wait);
+
+	spin_unlock_irqrestore(&sport->port.lock, flags);
+	return IRQ_HANDLED;
+}
+
 static irqreturn_t imx_txint(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct imx_port *sport = (struct imx_port *)dev_id;
@@ -383,18 +399,24 @@ static int imx_startup(struct uart_port *port)
 	 */
 	retval = request_irq(sport->rxirq, imx_rxint, 0,
 			     DRIVER_NAME, sport);
-	if (retval) goto error_out2;
+	if (retval) goto error_out1;
 
 	retval = request_irq(sport->txirq, imx_txint, 0,
-			     "imx-uart", sport);
-	if (retval) goto error_out1;
+			     DRIVER_NAME, sport);
+	if (retval) goto error_out2;
+
+	retval = request_irq(sport->rtsirq, imx_rtsint, 0,
+			     DRIVER_NAME, sport);
+	if (retval) goto error_out3;
+	set_irq_type(sport->rtsirq, IRQT_BOTHEDGE);
 
 	/*
 	 * Finally, clear and enable interrupts
 	 */
 
+	USR1((u32)sport->port.membase) = USR1_RTSD;
 	UCR1((u32)sport->port.membase) |=
-	                 (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_UARTEN);
+	                 (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
 
 	UCR2((u32)sport->port.membase) |= (UCR2_RXEN | UCR2_TXEN);
 	/*
@@ -406,10 +428,11 @@ static int imx_startup(struct uart_port *port)
 
 	return 0;
 
-error_out1:
-	free_irq(sport->rxirq, sport);
-error_out2:
+error_out3:
 	free_irq(sport->txirq, sport);
+error_out2:
+	free_irq(sport->rxirq, sport);
+error_out1:
 	return retval;
 }
 
@@ -425,6 +448,7 @@ static void imx_shutdown(struct uart_port *port)
 	/*
 	 * Free the interrupts
 	 */
+	free_irq(sport->rtsirq, sport);
 	free_irq(sport->txirq, sport);
 	free_irq(sport->rxirq, sport);
 
@@ -433,7 +457,7 @@ static void imx_shutdown(struct uart_port *port)
 	 */
 
 	UCR1((u32)sport->port.membase) &=
-	                 ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_UARTEN);
+	                 ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN);
 }
 
 static void
@@ -523,7 +547,7 @@ imx_set_termios(struct uart_port *port, struct termios *termios,
 	 * disable interrupts and drain transmitter
 	 */
 	old_ucr1 = UCR1((u32)sport->port.membase);
-	UCR1((u32)sport->port.membase) &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN);
+	UCR1((u32)sport->port.membase) &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
 
 	while ( !(USR2((u32)sport->port.membase) & USR2_TXDC))
 		barrier();
@@ -644,6 +668,7 @@ static struct imx_port imx_ports[] = {
 	{
 	.txirq  = UART1_MINT_TX,
 	.rxirq  = UART1_MINT_RX,
+	.rtsirq = UART1_MINT_RTS,
 	.port	= {
 		.type		= PORT_IMX,
 		.iotype		= SERIAL_IO_MEM,
@@ -659,6 +684,7 @@ static struct imx_port imx_ports[] = {
 	}, {
 	.txirq  = UART2_MINT_TX,
 	.rxirq  = UART2_MINT_RX,
+	.rtsirq = UART2_MINT_RTS,
 	.port	= {
 		.type		= PORT_IMX,
 		.iotype		= SERIAL_IO_MEM,
@@ -738,7 +764,7 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
 
 	UCR1((u32)sport->port.membase) =
 	                   (old_ucr1 | UCR1_UARTCLKEN | UCR1_UARTEN)
-	                   & ~(UCR1_TXMPTYEN | UCR1_RRDYEN);
+	                   & ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN);
 	UCR2((u32)sport->port.membase) = old_ucr2 | UCR2_TXEN;
 
 	/*
@@ -860,7 +886,7 @@ imx_console_setup(struct console *co, char *options)
 	return uart_set_options(&sport->port, co, baud, parity, bits, flow);
 }
 
-extern struct uart_driver imx_reg;
+static struct uart_driver imx_reg;
 static struct console imx_console = {
 	.name		= "ttySMX",
 	.write		= imx_console_write,
@@ -895,41 +921,39 @@ static struct uart_driver imx_reg = {
 	.cons           = IMX_CONSOLE,
 };
 
-static int serial_imx_suspend(struct device *_dev, pm_message_t state, u32 level)
+static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
 {
-        struct imx_port *sport = dev_get_drvdata(_dev);
+        struct imx_port *sport = platform_get_drvdata(dev);
 
-        if (sport && level == SUSPEND_DISABLE)
+        if (sport)
                 uart_suspend_port(&imx_reg, &sport->port);
 
         return 0;
 }
 
-static int serial_imx_resume(struct device *_dev, u32 level)
+static int serial_imx_resume(struct platform_device *dev)
 {
-        struct imx_port *sport = dev_get_drvdata(_dev);
+        struct imx_port *sport = platform_get_drvdata(dev);
 
-        if (sport && level == RESUME_ENABLE)
+        if (sport)
                 uart_resume_port(&imx_reg, &sport->port);
 
         return 0;
 }
 
-static int serial_imx_probe(struct device *_dev)
+static int serial_imx_probe(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
-
-	imx_ports[dev->id].port.dev = _dev;
+	imx_ports[dev->id].port.dev = &dev->dev;
 	uart_add_one_port(&imx_reg, &imx_ports[dev->id].port);
-	dev_set_drvdata(_dev, &imx_ports[dev->id]);
+	platform_set_drvdata(dev, &imx_ports[dev->id]);
 	return 0;
 }
 
-static int serial_imx_remove(struct device *_dev)
+static int serial_imx_remove(struct platform_device *dev)
 {
-	struct imx_port *sport = dev_get_drvdata(_dev);
+	struct imx_port *sport = platform_get_drvdata(dev);
 
-	dev_set_drvdata(_dev, NULL);
+	platform_set_drvdata(dev, NULL);
 
 	if (sport)
 		uart_remove_one_port(&imx_reg, &sport->port);
@@ -937,14 +961,15 @@ static int serial_imx_remove(struct device *_dev)
 	return 0;
 }
 
-static struct device_driver serial_imx_driver = {
-        .name           = "imx-uart",
-        .bus            = &platform_bus_type,
+static struct platform_driver serial_imx_driver = {
         .probe          = serial_imx_probe,
         .remove         = serial_imx_remove,
 
 	.suspend	= serial_imx_suspend,
 	.resume		= serial_imx_resume,
+	.driver		= {
+	        .name	= "imx-uart",
+	},
 };
 
 static int __init imx_serial_init(void)
@@ -959,7 +984,7 @@ static int __init imx_serial_init(void)
 	if (ret)
 		return ret;
 
-	ret = driver_register(&serial_imx_driver);
+	ret = platform_driver_register(&serial_imx_driver);
 	if (ret != 0)
 		uart_unregister_driver(&imx_reg);
 
@@ -969,6 +994,7 @@ static int __init imx_serial_init(void)
 static void __exit imx_serial_exit(void)
 {
 	uart_unregister_driver(&imx_reg);
+	platform_driver_unregister(&serial_imx_driver);
 }
 
 module_init(imx_serial_init);
diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c
index 0c5c96a582b..771676abee6 100644
--- a/drivers/serial/ioc4_serial.c
+++ b/drivers/serial/ioc4_serial.c
@@ -308,6 +308,8 @@ struct ioc4_serial {
 typedef void ioc4_intr_func_f(void *, uint32_t);
 typedef ioc4_intr_func_f *ioc4_intr_func_t;
 
+static unsigned int Num_of_ioc4_cards;
+
 /* defining this will get you LOTS of great debug info */
 //#define DEBUG_INTERRUPTS
 #define DPRINT_CONFIG(_x...)	;
@@ -317,7 +319,8 @@ typedef ioc4_intr_func_f *ioc4_intr_func_t;
 #define WAKEUP_CHARS	256
 
 /* number of characters we want to transmit to the lower level at a time */
-#define IOC4_MAX_CHARS	128
+#define IOC4_MAX_CHARS	256
+#define IOC4_FIFO_CHARS	255
 
 /* Device name we're using */
 #define DEVICE_NAME	"ttyIOC"
@@ -973,18 +976,6 @@ static irqreturn_t ioc4_intr(int irq, void *arg, struct pt_regs *regs)
 				this_ir &= ~this_mir;
 			}
 		}
-		if (this_ir) {
-			printk(KERN_ERR
-			       "unknown IOC4 %s interrupt 0x%x, sio_ir = 0x%x,"
-				" sio_ies = 0x%x, other_ir = 0x%x :"
-				"other_ies = 0x%x\n",
-			       (intr_type == IOC4_SIO_INTR_TYPE) ? "sio" :
-			       "other", this_ir,
-			       readl(&soft->is_ioc4_misc_addr->sio_ir.raw),
-			       readl(&soft->is_ioc4_misc_addr->sio_ies.raw),
-			       readl(&soft->is_ioc4_misc_addr->other_ir.raw),
-			       readl(&soft->is_ioc4_misc_addr->other_ies.raw));
-		}
 	}
 #ifdef DEBUG_INTERRUPTS
 	{
@@ -1050,6 +1041,7 @@ static int inline ioc4_attach_local(struct ioc4_driver_data *idd)
 			return -ENOMEM;
 		}
 		memset(port, 0, sizeof(struct ioc4_port));
+		spin_lock_init(&port->ip_lock);
 
 		/* we need to remember the previous ones, to point back to
 		 * them farther down - setting up the ring buffers.
@@ -1703,12 +1695,14 @@ ioc4_change_speed(struct uart_port *the_port,
 		baud = 9600;
 
 	if (!the_port->fifosize)
-		the_port->fifosize = IOC4_MAX_CHARS;
+		the_port->fifosize = IOC4_FIFO_CHARS;
 	the_port->timeout = ((the_port->fifosize * HZ * bits) / (baud / 10));
 	the_port->timeout += HZ / 50;	/* Add .02 seconds of slop */
 
 	the_port->ignore_status_mask = N_ALL_INPUT;
 
+	info->tty->low_latency = 1;
+
 	if (I_IGNPAR(info->tty))
 		the_port->ignore_status_mask &= ~(N_PARITY_ERROR
 						| N_FRAMING_ERROR);
@@ -1754,7 +1748,6 @@ ioc4_change_speed(struct uart_port *the_port,
  */
 static inline int ic4_startup_local(struct uart_port *the_port)
 {
-	int retval = 0;
 	struct ioc4_port *port;
 	struct uart_info *info;
 
@@ -1766,9 +1759,6 @@ static inline int ic4_startup_local(struct uart_port *the_port)
 		return -1;
 
 	info = the_port->info;
-	if (info->flags & UIF_INITIALIZED) {
-		return retval;
-	}
 
 	if (info->tty) {
 		set_bit(TTY_IO_ERROR, &info->tty->flags);
@@ -1787,7 +1777,6 @@ static inline int ic4_startup_local(struct uart_port *the_port)
 	/* set the speed of the serial port */
 	ioc4_change_speed(the_port, info->tty->termios, (struct termios *)0);
 
-	info->flags |= UIF_INITIALIZED;
 	return 0;
 }
 
@@ -1797,9 +1786,13 @@ static inline int ic4_startup_local(struct uart_port *the_port)
  */
 static void ioc4_cb_output_lowat(struct ioc4_port *port)
 {
+	unsigned long pflags;
+
 	/* ip_lock is set on the call here */
 	if (port->ip_port) {
+		spin_lock_irqsave(&port->ip_port->lock, pflags);
 		transmit_chars(port->ip_port);
+		spin_unlock_irqrestore(&port->ip_port->lock, pflags);
 	}
 }
 
@@ -2076,8 +2069,7 @@ static inline int do_read(struct uart_port *the_port, unsigned char *buf,
 	 * available data as long as it returns some.
 	 */
 	/* Re-arm the timer */
-	writel(port->ip_rx_cons | IOC4_SRCIR_ARM,
-			&port->ip_serial_regs->srcir);
+	writel(port->ip_rx_cons | IOC4_SRCIR_ARM, &port->ip_serial_regs->srcir);
 
 	prod_ptr = readl(&port->ip_serial_regs->srpir) & PROD_CONS_MASK;
 	cons_ptr = port->ip_rx_cons;
@@ -2311,6 +2303,7 @@ static inline int do_read(struct uart_port *the_port, unsigned char *buf,
 	}
 	return total;
 }
+
 /**
  * receive_chars - upper level read. Called with ip_lock.
  * @the_port: port to read from
@@ -2319,9 +2312,11 @@ static void receive_chars(struct uart_port *the_port)
 {
 	struct tty_struct *tty;
 	unsigned char ch[IOC4_MAX_CHARS];
-	int read_count, request_count;
+	int read_count, request_count = IOC4_MAX_CHARS;
 	struct uart_icount *icount;
 	struct uart_info *info = the_port->info;
+	int flip = 0;
+	unsigned long pflags;
 
 	/* Make sure all the pointers are "good" ones */
 	if (!info)
@@ -2329,16 +2324,17 @@ static void receive_chars(struct uart_port *the_port)
 	if (!info->tty)
 		return;
 
+	spin_lock_irqsave(&the_port->lock, pflags);
 	tty = info->tty;
 
-	request_count = TTY_FLIPBUF_SIZE - tty->flip.count - 1;
+	if (request_count > TTY_FLIPBUF_SIZE - tty->flip.count)
+		request_count = TTY_FLIPBUF_SIZE - tty->flip.count;
 
 	if (request_count > 0) {
-		if (request_count > IOC4_MAX_CHARS - 2)
-			request_count = IOC4_MAX_CHARS - 2;
 		icount = &the_port->icount;
 		read_count = do_read(the_port, ch, request_count);
 		if (read_count > 0) {
+			flip = 1;
 			memcpy(tty->flip.char_buf_ptr, ch, read_count);
 			memset(tty->flip.flag_buf_ptr, TTY_NORMAL, read_count);
 			tty->flip.char_buf_ptr += read_count;
@@ -2347,7 +2343,11 @@ static void receive_chars(struct uart_port *the_port)
 			icount->rx += read_count;
 		}
 	}
-	tty_flip_buffer_push(tty);
+
+	spin_unlock_irqrestore(&the_port->lock, pflags);
+
+	if (flip)
+		tty_flip_buffer_push(tty);
 }
 
 /**
@@ -2405,18 +2405,14 @@ static void ic4_shutdown(struct uart_port *the_port)
 
 	info = the_port->info;
 
-	if (!(info->flags & UIF_INITIALIZED))
-		return;
-
 	wake_up_interruptible(&info->delta_msr_wait);
 
 	if (info->tty)
 		set_bit(TTY_IO_ERROR, &info->tty->flags);
 
-	spin_lock_irqsave(&port->ip_lock, port_flags);
+	spin_lock_irqsave(&the_port->lock, port_flags);
 	set_notification(port, N_ALL, 0);
-	info->flags &= ~UIF_INITIALIZED;
-	spin_unlock_irqrestore(&port->ip_lock, port_flags);
+	spin_unlock_irqrestore(&the_port->lock, port_flags);
 }
 
 /**
@@ -2475,12 +2471,10 @@ static unsigned int ic4_get_mctrl(struct uart_port *the_port)
 static void ic4_start_tx(struct uart_port *the_port)
 {
 	struct ioc4_port *port = get_ioc4_port(the_port);
-	unsigned long flags;
 
 	if (port) {
-		spin_lock_irqsave(&port->ip_lock, flags);
-		transmit_chars(the_port);
-		spin_unlock_irqrestore(&port->ip_lock, flags);
+		set_notification(port, N_OUTPUT_LOWAT, 1);
+		enable_intrs(port, port->ip_hooks->intr_tx_mt);
 	}
 }
 
@@ -2522,9 +2516,9 @@ static int ic4_startup(struct uart_port *the_port)
 	}
 
 	/* Start up the serial port */
-	spin_lock_irqsave(&port->ip_lock, port_flags);
+	spin_lock_irqsave(&the_port->lock, port_flags);
 	retval = ic4_startup_local(the_port);
-	spin_unlock_irqrestore(&port->ip_lock, port_flags);
+	spin_unlock_irqrestore(&the_port->lock, port_flags);
 	return retval;
 }
 
@@ -2539,12 +2533,11 @@ static void
 ic4_set_termios(struct uart_port *the_port,
 		struct termios *termios, struct termios *old_termios)
 {
-	struct ioc4_port *port = get_ioc4_port(the_port);
 	unsigned long port_flags;
 
-	spin_lock_irqsave(&port->ip_lock, port_flags);
+	spin_lock_irqsave(&the_port->lock, port_flags);
 	ioc4_change_speed(the_port, termios, old_termios);
-	spin_unlock_irqrestore(&port->ip_lock, port_flags);
+	spin_unlock_irqrestore(&the_port->lock, port_flags);
 }
 
 /**
@@ -2619,24 +2612,25 @@ ioc4_serial_core_attach(struct pci_dev *pdev)
 				__FUNCTION__, (void *)the_port,
 				(void *)port));
 
-		spin_lock_init(&the_port->lock);
 		/* membase, iobase and mapbase just need to be non-0 */
 		the_port->membase = (unsigned char __iomem *)1;
-		the_port->line = the_port->iobase = ii;
+		the_port->iobase = (pdev->bus->number << 16) |  ii;
+		the_port->line = (Num_of_ioc4_cards << 2) | ii;
 		the_port->mapbase = 1;
 		the_port->type = PORT_16550A;
-		the_port->fifosize = IOC4_MAX_CHARS;
+		the_port->fifosize = IOC4_FIFO_CHARS;
 		the_port->ops = &ioc4_ops;
 		the_port->irq = control->ic_irq;
 		the_port->dev = &pdev->dev;
+		spin_lock_init(&the_port->lock);
 		if (uart_add_one_port(&ioc4_uart, the_port) < 0) {
 			printk(KERN_WARNING
-				       "%s: unable to add port %d\n",
-				       __FUNCTION__, the_port->line);
+		           "%s: unable to add port %d bus %d\n",
+			       __FUNCTION__, the_port->line, pdev->bus->number);
 		} else {
 			DPRINT_CONFIG(
-				    ("IOC4 serial driver port %d irq = %d\n",
-				       the_port->line, the_port->irq));
+			    ("IOC4 serial port %d irq = %d, bus %d\n",
+			       the_port->line, the_port->irq, pdev->bus->number));
 		}
 		/* all ports are rs232 for now */
 		ioc4_set_proto(port, PROTO_RS232);
@@ -2746,6 +2740,8 @@ ioc4_serial_attach_one(struct ioc4_driver_data *idd)
 	if ((ret = ioc4_serial_core_attach(idd->idd_pdev)))
 		goto out4;
 
+	Num_of_ioc4_cards++;
+
 	return ret;
 
 	/* error exits that give back resources */
diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index e2ebdcad553..47f7404cb04 100644
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -57,7 +57,8 @@ struct timer_list mcfrs_timer_struct;
  *	keep going.  Perhaps one day the cflag settings for the
  *	console can be used instead.
  */
-#if defined(CONFIG_ARNEWSH) || defined(CONFIG_MOTOROLA) || defined(CONFIG_senTec) || defined(CONFIG_SNEHA)
+#if defined(CONFIG_ARNEWSH) || defined(CONFIG_FREESCALE) || \
+    defined(CONFIG_senTec) || defined(CONFIG_SNEHA)
 #define	CONSOLE_BAUD_RATE	19200
 #define	DEFAULT_CBAUD		B19200
 #endif
@@ -67,7 +68,7 @@ struct timer_list mcfrs_timer_struct;
 #define	DEFAULT_CBAUD		B38400
 #endif
 
-#if defined(CONFIG_MOD5272)
+#if defined(CONFIG_MOD5272) || defined(CONFIG_M5208EVB)
 #define CONSOLE_BAUD_RATE 	115200
 #define DEFAULT_CBAUD		B115200
 #endif
@@ -95,7 +96,8 @@ static struct tty_driver *mcfrs_serial_driver;
 #undef SERIAL_DEBUG_OPEN
 #undef SERIAL_DEBUG_FLOW
 
-#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x)
+#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
+    defined(CONFIG_M520x)
 #define	IRQBASE	(MCFINT_VECBASE+MCFINT_UART0)
 #else
 #define	IRQBASE	73
@@ -1528,6 +1530,35 @@ static void mcfrs_irqinit(struct mcf_serial *info)
 	imrp = (volatile unsigned long *) (MCF_MBAR + MCFICM_INTC0 +
 		MCFINTC_IMRL);
 	*imrp &= ~((1 << (info->irq - MCFINT_VECBASE)) | 1);
+#elif defined(CONFIG_M520x)
+	volatile unsigned char *icrp, *uartp;
+	volatile unsigned long *imrp;
+
+	uartp = info->addr;
+
+	icrp = (volatile unsigned char *) (MCF_MBAR + MCFICM_INTC0 +
+		MCFINTC_ICR0 + MCFINT_UART0 + info->line);
+	*icrp = 0x03;
+
+	imrp = (volatile unsigned long *) (MCF_MBAR + MCFICM_INTC0 +
+		MCFINTC_IMRL);
+	*imrp &= ~((1 << (info->irq - MCFINT_VECBASE)) | 1);
+	if (info->line < 2) {
+		unsigned short *uart_par;
+		uart_par = (unsigned short *)(MCF_IPSBAR + MCF_GPIO_PAR_UART);
+		if (info->line == 0)
+			*uart_par |=  MCF_GPIO_PAR_UART_PAR_UTXD0
+				  | MCF_GPIO_PAR_UART_PAR_URXD0;
+		else if (info->line == 1)
+			*uart_par |=  MCF_GPIO_PAR_UART_PAR_UTXD1
+				  | MCF_GPIO_PAR_UART_PAR_URXD1;
+		} else if (info->line == 2) {
+			unsigned char *feci2c_par;
+			feci2c_par = (unsigned char *)(MCF_IPSBAR +  MCF_GPIO_PAR_FECI2C);
+			*feci2c_par &= ~0x0F;
+			*feci2c_par |=  MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2
+				    | MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2;
+		}
 #else
 	volatile unsigned char	*icrp, *uartp;
 
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 0585ab27ffd..b8727d9bf69 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -45,7 +45,7 @@
  */
 
 #include <linux/config.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/tty.h>
 #include <linux/serial.h>
@@ -717,16 +717,15 @@ static struct uart_driver mpc52xx_uart_driver = {
 /* ======================================================================== */
 
 static int __devinit
-mpc52xx_uart_probe(struct device *dev)
+mpc52xx_uart_probe(struct platform_device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct resource *res = pdev->resource;
+	struct resource *res = dev->resource;
 
 	struct uart_port *port = NULL;
 	int i, idx, ret;
 
 	/* Check validity & presence */
-	idx = pdev->id;
+	idx = dev->id;
 	if (idx < 0 || idx >= MPC52xx_PSC_MAXNUM)
 		return -EINVAL;
 
@@ -749,7 +748,7 @@ mpc52xx_uart_probe(struct device *dev)
 	port->ops	= &mpc52xx_uart_ops;
 
 	/* Search for IRQ and mapbase */
-	for (i=0 ; i<pdev->num_resources ; i++, res++) {
+	for (i=0 ; i<dev->num_resources ; i++, res++) {
 		if (res->flags & IORESOURCE_MEM)
 			port->mapbase = res->start;
 		else if (res->flags & IORESOURCE_IRQ)
@@ -761,17 +760,17 @@ mpc52xx_uart_probe(struct device *dev)
 	/* Add the port to the uart sub-system */
 	ret = uart_add_one_port(&mpc52xx_uart_driver, port);
 	if (!ret)
-		dev_set_drvdata(dev, (void*)port);
+		platform_set_drvdata(dev, (void*)port);
 
 	return ret;
 }
 
 static int
-mpc52xx_uart_remove(struct device *dev)
+mpc52xx_uart_remove(struct platform_device *dev)
 {
-	struct uart_port *port = (struct uart_port *) dev_get_drvdata(dev);
+	struct uart_port *port = (struct uart_port *) platform_get_drvdata(dev);
 
-	dev_set_drvdata(dev, NULL);
+	platform_set_drvdata(dev, NULL);
 
 	if (port)
 		uart_remove_one_port(&mpc52xx_uart_driver, port);
@@ -781,37 +780,38 @@ mpc52xx_uart_remove(struct device *dev)
 
 #ifdef CONFIG_PM
 static int
-mpc52xx_uart_suspend(struct device *dev, pm_message_t state, u32 level)
+mpc52xx_uart_suspend(struct platform_device *dev, pm_message_t state)
 {
-	struct uart_port *port = (struct uart_port *) dev_get_drvdata(dev);
+	struct uart_port *port = (struct uart_port *) platform_get_drvdata(dev);
 
-	if (sport && level == SUSPEND_DISABLE)
+	if (sport)
 		uart_suspend_port(&mpc52xx_uart_driver, port);
 
 	return 0;
 }
 
 static int
-mpc52xx_uart_resume(struct device *dev, u32 level)
+mpc52xx_uart_resume(struct platform_device *dev)
 {
-	struct uart_port *port = (struct uart_port *) dev_get_drvdata(dev);
+	struct uart_port *port = (struct uart_port *) platform_get_drvdata(dev);
 
-	if (port && level == RESUME_ENABLE)
+	if (port)
 		uart_resume_port(&mpc52xx_uart_driver, port);
 
 	return 0;
 }
 #endif
 
-static struct device_driver mpc52xx_uart_platform_driver = {
-	.name		= "mpc52xx-psc",
-	.bus		= &platform_bus_type,
+static struct platform_driver mpc52xx_uart_platform_driver = {
 	.probe		= mpc52xx_uart_probe,
 	.remove		= mpc52xx_uart_remove,
 #ifdef CONFIG_PM
 	.suspend	= mpc52xx_uart_suspend,
 	.resume		= mpc52xx_uart_resume,
 #endif
+	.driver		= {
+		.name	= "mpc52xx-psc",
+	},
 };
 
 
@@ -828,7 +828,7 @@ mpc52xx_uart_init(void)
 
 	ret = uart_register_driver(&mpc52xx_uart_driver);
 	if (ret == 0) {
-		ret = driver_register(&mpc52xx_uart_platform_driver);
+		ret = platform_driver_register(&mpc52xx_uart_platform_driver);
 		if (ret)
 			uart_unregister_driver(&mpc52xx_uart_driver);
 	}
@@ -839,7 +839,7 @@ mpc52xx_uart_init(void)
 static void __exit
 mpc52xx_uart_exit(void)
 {
-	driver_unregister(&mpc52xx_uart_platform_driver);
+	platform_driver_unregister(&mpc52xx_uart_platform_driver);
 	uart_unregister_driver(&mpc52xx_uart_driver);
 }
 
diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c
index efe79b1fd43..8f83e4007ec 100644
--- a/drivers/serial/mpsc.c
+++ b/drivers/serial/mpsc.c
@@ -52,6 +52,8 @@
  * 4) AFAICT, hardware flow control isn't supported by the controller --MAG.
  */
 
+#include <linux/platform_device.h>
+
 #include "mpsc.h"
 
 /*
@@ -1100,6 +1102,8 @@ mpsc_start_rx(struct mpsc_port_info *pi)
 {
 	pr_debug("mpsc_start_rx[%d]: Starting...\n", pi->port.line);
 
+	/* Issue a Receive Abort to clear any receive errors */
+	writel(MPSC_CHR_2_RA, pi->mpsc_base + MPSC_CHR_2);
 	if (pi->rcv_data) {
 		mpsc_enter_hunt(pi);
 		mpsc_sdma_cmd(pi, SDMA_SDCM_ERD);
@@ -1547,15 +1551,14 @@ mpsc_shared_unmap_regs(void)
 }
 
 static int
-mpsc_shared_drv_probe(struct device *dev)
+mpsc_shared_drv_probe(struct platform_device *dev)
 {
-	struct platform_device		*pd = to_platform_device(dev);
 	struct mpsc_shared_pdata	*pdata;
 	int				 rc = -ENODEV;
 
-	if (pd->id == 0) {
-		if (!(rc = mpsc_shared_map_regs(pd)))  {
-			pdata = (struct mpsc_shared_pdata *)dev->platform_data;
+	if (dev->id == 0) {
+		if (!(rc = mpsc_shared_map_regs(dev)))  {
+			pdata = (struct mpsc_shared_pdata *)dev->dev.platform_data;
 
 			mpsc_shared_regs.MPSC_MRR_m = pdata->mrr_val;
 			mpsc_shared_regs.MPSC_RCRR_m= pdata->rcrr_val;
@@ -1573,12 +1576,11 @@ mpsc_shared_drv_probe(struct device *dev)
 }
 
 static int
-mpsc_shared_drv_remove(struct device *dev)
+mpsc_shared_drv_remove(struct platform_device *dev)
 {
-	struct platform_device	*pd = to_platform_device(dev);
 	int	rc = -ENODEV;
 
-	if (pd->id == 0) {
+	if (dev->id == 0) {
 		mpsc_shared_unmap_regs();
 		mpsc_shared_regs.MPSC_MRR_m = 0;
 		mpsc_shared_regs.MPSC_RCRR_m = 0;
@@ -1591,11 +1593,12 @@ mpsc_shared_drv_remove(struct device *dev)
 	return rc;
 }
 
-static struct device_driver mpsc_shared_driver = {
-	.name	= MPSC_SHARED_NAME,
-	.bus	= &platform_bus_type,
+static struct platform_driver mpsc_shared_driver = {
 	.probe	= mpsc_shared_drv_probe,
 	.remove	= mpsc_shared_drv_remove,
+	.driver	= {
+		.name = MPSC_SHARED_NAME,
+	},
 };
 
 /*
@@ -1728,19 +1731,18 @@ mpsc_drv_get_platform_data(struct mpsc_port_info *pi,
 }
 
 static int
-mpsc_drv_probe(struct device *dev)
+mpsc_drv_probe(struct platform_device *dev)
 {
-	struct platform_device	*pd = to_platform_device(dev);
 	struct mpsc_port_info	*pi;
 	int			rc = -ENODEV;
 
-	pr_debug("mpsc_drv_probe: Adding MPSC %d\n", pd->id);
+	pr_debug("mpsc_drv_probe: Adding MPSC %d\n", dev->id);
 
-	if (pd->id < MPSC_NUM_CTLRS) {
-		pi = &mpsc_ports[pd->id];
+	if (dev->id < MPSC_NUM_CTLRS) {
+		pi = &mpsc_ports[dev->id];
 
-		if (!(rc = mpsc_drv_map_regs(pi, pd))) {
-			mpsc_drv_get_platform_data(pi, pd, pd->id);
+		if (!(rc = mpsc_drv_map_regs(pi, dev))) {
+			mpsc_drv_get_platform_data(pi, dev, dev->id);
 
 			if (!(rc = mpsc_make_ready(pi)))
 				if (!(rc = uart_add_one_port(&mpsc_reg,
@@ -1760,27 +1762,26 @@ mpsc_drv_probe(struct device *dev)
 }
 
 static int
-mpsc_drv_remove(struct device *dev)
+mpsc_drv_remove(struct platform_device *dev)
 {
-	struct platform_device	*pd = to_platform_device(dev);
-
-	pr_debug("mpsc_drv_exit: Removing MPSC %d\n", pd->id);
+	pr_debug("mpsc_drv_exit: Removing MPSC %d\n", dev->id);
 
-	if (pd->id < MPSC_NUM_CTLRS) {
-		uart_remove_one_port(&mpsc_reg, &mpsc_ports[pd->id].port);
-		mpsc_release_port((struct uart_port *)&mpsc_ports[pd->id].port);
-		mpsc_drv_unmap_regs(&mpsc_ports[pd->id]);
+	if (dev->id < MPSC_NUM_CTLRS) {
+		uart_remove_one_port(&mpsc_reg, &mpsc_ports[dev->id].port);
+		mpsc_release_port((struct uart_port *)&mpsc_ports[dev->id].port);
+		mpsc_drv_unmap_regs(&mpsc_ports[dev->id]);
 		return 0;
 	}
 	else
 		return -ENODEV;
 }
 
-static struct device_driver mpsc_driver = {
-	.name	= MPSC_CTLR_NAME,
-	.bus	= &platform_bus_type,
+static struct platform_driver mpsc_driver = {
 	.probe	= mpsc_drv_probe,
 	.remove	= mpsc_drv_remove,
+	.driver	= {
+		.name = MPSC_CTLR_NAME,
+	},
 };
 
 static int __init
@@ -1794,9 +1795,9 @@ mpsc_drv_init(void)
 	memset(&mpsc_shared_regs, 0, sizeof(mpsc_shared_regs));
 
 	if (!(rc = uart_register_driver(&mpsc_reg))) {
-		if (!(rc = driver_register(&mpsc_shared_driver))) {
-			if ((rc = driver_register(&mpsc_driver))) {
-				driver_unregister(&mpsc_shared_driver);
+		if (!(rc = platform_driver_register(&mpsc_shared_driver))) {
+			if ((rc = platform_driver_register(&mpsc_driver))) {
+				platform_driver_unregister(&mpsc_shared_driver);
 				uart_unregister_driver(&mpsc_reg);
 			}
 		}
@@ -1811,8 +1812,8 @@ mpsc_drv_init(void)
 static void __exit
 mpsc_drv_exit(void)
 {
-	driver_unregister(&mpsc_driver);
-	driver_unregister(&mpsc_shared_driver);
+	platform_driver_unregister(&mpsc_driver);
+	platform_driver_unregister(&mpsc_shared_driver);
 	uart_unregister_driver(&mpsc_reg);
 	memset(mpsc_ports, 0, sizeof(mpsc_ports));
 	memset(&mpsc_shared_regs, 0, sizeof(mpsc_shared_regs));
diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index 18906460770..7633132a10a 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -27,6 +27,7 @@
 #include <linux/delay.h> /* for udelay */
 #include <linux/device.h>
 #include <asm/io.h>
+#include <asm/irq.h>
 #include <asm/parisc-device.h>
 
 #ifdef CONFIG_MAGIC_SYSRQ
@@ -64,8 +65,8 @@ static struct uart_driver mux_driver = {
 
 static struct timer_list mux_timer;
 
-#define UART_PUT_CHAR(p, c) __raw_writel((c), (unsigned long)(p)->membase + IO_DATA_REG_OFFSET)
-#define UART_GET_FIFO_CNT(p) __raw_readl((unsigned long)(p)->membase + IO_DCOUNT_REG_OFFSET)
+#define UART_PUT_CHAR(p, c) __raw_writel((c), (p)->membase + IO_DATA_REG_OFFSET)
+#define UART_GET_FIFO_CNT(p) __raw_readl((p)->membase + IO_DCOUNT_REG_OFFSET)
 #define GET_MUX_PORTS(iodc_data) ((((iodc_data)[4] & 0xf0) >> 4) * 8) + 8
 
 /**
@@ -78,10 +79,7 @@ static struct timer_list mux_timer;
  */
 static unsigned int mux_tx_empty(struct uart_port *port)
 {
-	unsigned int cnt = __raw_readl((unsigned long)port->membase 
-				+ IO_DCOUNT_REG_OFFSET);
-
-	return cnt ? 0 : TIOCSER_TEMT;
+	return UART_GET_FIFO_CNT(port) ? 0 : TIOCSER_TEMT;
 } 
 
 /**
@@ -217,8 +215,7 @@ static void mux_read(struct uart_port *port)
 	__u32 start_count = port->icount.rx;
 
 	while(1) {
-		data = __raw_readl((unsigned long)port->membase
-						+ IO_DATA_REG_OFFSET);
+		data = __raw_readl(port->membase + IO_DATA_REG_OFFSET);
 
 		if (MUX_STATUS(data))
 			continue;
@@ -444,7 +441,7 @@ static int __init mux_probe(struct parisc_device *dev)
 	unsigned long bytecnt;
 	struct uart_port *port;
 
-	status = pdc_iodc_read(&bytecnt, dev->hpa, 0, iodc_data, 32);
+	status = pdc_iodc_read(&bytecnt, dev->hpa.start, 0, iodc_data, 32);
 	if(status != PDC_OK) {
 		printk(KERN_ERR "Serial mux: Unable to read IODC.\n");
 		return 1;
@@ -469,16 +466,25 @@ static int __init mux_probe(struct parisc_device *dev)
 	for(i = 0; i < ports; ++i, ++port_cnt) {
 		port = &mux_ports[port_cnt];
 		port->iobase	= 0;
-		port->mapbase	= dev->hpa + MUX_OFFSET + (i * MUX_LINE_OFFSET);
+		port->mapbase	= dev->hpa.start + MUX_OFFSET +
+						(i * MUX_LINE_OFFSET);
 		port->membase	= ioremap(port->mapbase, MUX_LINE_OFFSET);
 		port->iotype	= SERIAL_IO_MEM;
 		port->type	= PORT_MUX;
-		port->irq	= SERIAL_IRQ_NONE;
+		port->irq	= NO_IRQ;
 		port->uartclk	= 0;
 		port->fifosize	= MUX_FIFO_SIZE;
 		port->ops	= &mux_pops;
 		port->flags	= UPF_BOOT_AUTOCONF;
 		port->line	= port_cnt;
+
+		/* The port->timeout needs to match what is present in
+		 * uart_wait_until_sent in serial_core.c.  Otherwise
+		 * the time spent in msleep_interruptable will be very
+		 * long, causing the appearance of a console hang.
+		 */
+		port->timeout   = HZ / 50;
+		spin_lock_init(&port->lock);
 		status = uart_add_one_port(&mux_driver, port);
 		BUG_ON(status);
 	}
@@ -497,7 +503,7 @@ static struct parisc_device_id mux_tbl[] = {
 MODULE_DEVICE_TABLE(parisc, mux_tbl);
 
 static struct parisc_driver serial_mux_driver = {
-	.name =		"Serial MUX",
+	.name =		"serial_mux",
 	.id_table =	mux_tbl,
 	.probe =	mux_probe,
 };
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index 672b359b07c..ff5e6309d68 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -39,7 +39,7 @@
 #include <linux/circ_buf.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/serial_core.h>
@@ -358,6 +358,9 @@ static int serial_pxa_startup(struct uart_port *port)
 	unsigned long flags;
 	int retval;
 
+	if (port->line == 3) /* HWUART */
+		up->mcr |= UART_MCR_AFE;
+	else
 	up->mcr = 0;
 
 	/*
@@ -481,8 +484,10 @@ serial_pxa_set_termios(struct uart_port *port, struct termios *termios,
 
 	if ((up->port.uartclk / quot) < (2400 * 16))
 		fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR1;
-	else
+	else if ((up->port.uartclk / quot) < (230400 * 16))
 		fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR8;
+	else
+		fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR32;
 
 	/*
 	 * Ok, we're now changing the port state.  Do it with
@@ -499,7 +504,7 @@ serial_pxa_set_termios(struct uart_port *port, struct termios *termios,
 	/*
 	 * Update the per-port timeout.
 	 */
-	uart_update_timeout(port, termios->c_cflag, quot);
+	uart_update_timeout(port, termios->c_cflag, baud);
 
 	up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
 	if (termios->c_iflag & INPCK)
@@ -772,6 +777,20 @@ static struct uart_pxa_port serial_pxa_ports[] = {
 		.ops		= &serial_pxa_pops,
 		.line		= 2,
 	},
+  }, {  /* HWUART */
+	.name	= "HWUART",
+	.cken	= CKEN4_HWUART,
+	.port = {
+		.type		= PORT_PXA,
+		.iotype		= UPIO_MEM,
+		.membase	= (void *)&HWUART,
+		.mapbase	= __PREG(HWUART),
+		.irq		= IRQ_HWUART,
+		.uartclk	= 921600 * 16,
+		.fifosize	= 64,
+		.ops		= &serial_pxa_pops,
+		.line		= 3,
+	},
   }
 };
 
@@ -786,41 +805,39 @@ static struct uart_driver serial_pxa_reg = {
 	.cons		= PXA_CONSOLE,
 };
 
-static int serial_pxa_suspend(struct device *_dev, pm_message_t state, u32 level)
+static int serial_pxa_suspend(struct platform_device *dev, pm_message_t state)
 {
-        struct uart_pxa_port *sport = dev_get_drvdata(_dev);
+        struct uart_pxa_port *sport = platform_get_drvdata(dev);
 
-        if (sport && level == SUSPEND_DISABLE)
+        if (sport)
                 uart_suspend_port(&serial_pxa_reg, &sport->port);
 
         return 0;
 }
 
-static int serial_pxa_resume(struct device *_dev, u32 level)
+static int serial_pxa_resume(struct platform_device *dev)
 {
-        struct uart_pxa_port *sport = dev_get_drvdata(_dev);
+        struct uart_pxa_port *sport = platform_get_drvdata(dev);
 
-        if (sport && level == RESUME_ENABLE)
+        if (sport)
                 uart_resume_port(&serial_pxa_reg, &sport->port);
 
         return 0;
 }
 
-static int serial_pxa_probe(struct device *_dev)
+static int serial_pxa_probe(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
-
-	serial_pxa_ports[dev->id].port.dev = _dev;
+	serial_pxa_ports[dev->id].port.dev = &dev->dev;
 	uart_add_one_port(&serial_pxa_reg, &serial_pxa_ports[dev->id].port);
-	dev_set_drvdata(_dev, &serial_pxa_ports[dev->id]);
+	platform_set_drvdata(dev, &serial_pxa_ports[dev->id]);
 	return 0;
 }
 
-static int serial_pxa_remove(struct device *_dev)
+static int serial_pxa_remove(struct platform_device *dev)
 {
-	struct uart_pxa_port *sport = dev_get_drvdata(_dev);
+	struct uart_pxa_port *sport = platform_get_drvdata(dev);
 
-	dev_set_drvdata(_dev, NULL);
+	platform_set_drvdata(dev, NULL);
 
 	if (sport)
 		uart_remove_one_port(&serial_pxa_reg, &sport->port);
@@ -828,14 +845,15 @@ static int serial_pxa_remove(struct device *_dev)
 	return 0;
 }
 
-static struct device_driver serial_pxa_driver = {
-        .name           = "pxa2xx-uart",
-        .bus            = &platform_bus_type,
+static struct platform_driver serial_pxa_driver = {
         .probe          = serial_pxa_probe,
         .remove         = serial_pxa_remove,
 
 	.suspend	= serial_pxa_suspend,
 	.resume		= serial_pxa_resume,
+	.driver		= {
+	        .name	= "pxa2xx-uart",
+	},
 };
 
 int __init serial_pxa_init(void)
@@ -846,7 +864,7 @@ int __init serial_pxa_init(void)
 	if (ret != 0)
 		return ret;
 
-	ret = driver_register(&serial_pxa_driver);
+	ret = platform_driver_register(&serial_pxa_driver);
 	if (ret != 0)
 		uart_unregister_driver(&serial_pxa_reg);
 
@@ -855,7 +873,7 @@ int __init serial_pxa_init(void)
 
 void __exit serial_pxa_exit(void)
 {
-        driver_unregister(&serial_pxa_driver);
+	platform_driver_unregister(&serial_pxa_driver);
 	uart_unregister_driver(&serial_pxa_reg);
 }
 
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index c361c6fb080..47681c4654e 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -63,7 +63,7 @@
 
 #include <linux/module.h>
 #include <linux/ioport.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/sysrq.h>
 #include <linux/console.h>
@@ -82,8 +82,6 @@
 #include <asm/arch/regs-serial.h>
 #include <asm/arch/regs-gpio.h>
 
-#include <asm/mach-types.h>
-
 /* structures */
 
 struct s3c24xx_uart_info {
@@ -753,8 +751,8 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 {
 	struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
-	struct s3c24xx_uart_clksrc *clksrc;
-	struct clk *clk;
+	struct s3c24xx_uart_clksrc *clksrc = NULL;
+	struct clk *clk = NULL;
 	unsigned long flags;
 	unsigned int baud, quot;
 	unsigned int ulcon;
@@ -1094,14 +1092,13 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 
 static int probe_index = 0;
 
-int s3c24xx_serial_probe(struct device *_dev,
-			 struct s3c24xx_uart_info *info)
+static int s3c24xx_serial_probe(struct platform_device *dev,
+				struct s3c24xx_uart_info *info)
 {
 	struct s3c24xx_uart_port *ourport;
-	struct platform_device *dev = to_platform_device(_dev);
 	int ret;
 
-	dbg("s3c24xx_serial_probe(%p, %p) %d\n", _dev, info, probe_index);
+	dbg("s3c24xx_serial_probe(%p, %p) %d\n", dev, info, probe_index);
 
 	ourport = &s3c24xx_serial_ports[probe_index];
 	probe_index++;
@@ -1114,7 +1111,7 @@ int s3c24xx_serial_probe(struct device *_dev,
 
 	dbg("%s: adding port\n", __FUNCTION__);
 	uart_add_one_port(&s3c24xx_uart_drv, &ourport->port);
-	dev_set_drvdata(_dev, &ourport->port);
+	platform_set_drvdata(dev, &ourport->port);
 
 	return 0;
 
@@ -1122,9 +1119,9 @@ int s3c24xx_serial_probe(struct device *_dev,
 	return ret;
 }
 
-int s3c24xx_serial_remove(struct device *_dev)
+static int s3c24xx_serial_remove(struct platform_device *dev)
 {
-	struct uart_port *port = s3c24xx_dev_to_port(_dev);
+	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
 
 	if (port)
 		uart_remove_one_port(&s3c24xx_uart_drv, port);
@@ -1136,22 +1133,22 @@ int s3c24xx_serial_remove(struct device *_dev)
 
 #ifdef CONFIG_PM
 
-int s3c24xx_serial_suspend(struct device *dev, pm_message_t state, u32 level)
+static int s3c24xx_serial_suspend(struct platform_device *dev, pm_message_t state)
 {
-	struct uart_port *port = s3c24xx_dev_to_port(dev);
+	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
 
-	if (port && level == SUSPEND_DISABLE)
+	if (port)
 		uart_suspend_port(&s3c24xx_uart_drv, port);
 
 	return 0;
 }
 
-int s3c24xx_serial_resume(struct device *dev, u32 level)
+static int s3c24xx_serial_resume(struct platform_device *dev)
 {
-	struct uart_port *port = s3c24xx_dev_to_port(dev);
+	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
 
-	if (port && level == RESUME_ENABLE) {
+	if (port) {
 		clk_enable(ourport->clk);
 		s3c24xx_serial_resetport(port, s3c24xx_port_to_cfg(port));
 		clk_disable(ourport->clk);
@@ -1167,11 +1164,11 @@ int s3c24xx_serial_resume(struct device *dev, u32 level)
 #define s3c24xx_serial_resume  NULL
 #endif
 
-int s3c24xx_serial_init(struct device_driver *drv,
-			struct s3c24xx_uart_info *info)
+static int s3c24xx_serial_init(struct platform_driver *drv,
+			       struct s3c24xx_uart_info *info)
 {
 	dbg("s3c24xx_serial_init(%p,%p)\n", drv, info);
-	return driver_register(drv);
+	return platform_driver_register(drv);
 }
 
 
@@ -1230,18 +1227,20 @@ static struct s3c24xx_uart_info s3c2400_uart_inf = {
 	.reset_port	= s3c2400_serial_resetport,
 };
 
-static int s3c2400_serial_probe(struct device *dev)
+static int s3c2400_serial_probe(struct platform_device *dev)
 {
 	return s3c24xx_serial_probe(dev, &s3c2400_uart_inf);
 }
 
-static struct device_driver s3c2400_serial_drv = {
-	.name		= "s3c2400-uart",
-	.bus		= &platform_bus_type,
+static struct platform_driver s3c2400_serial_drv = {
 	.probe		= s3c2400_serial_probe,
 	.remove		= s3c24xx_serial_remove,
 	.suspend	= s3c24xx_serial_suspend,
 	.resume		= s3c24xx_serial_resume,
+	.driver		= {
+		.name	= "s3c2400-uart",
+		.owner	= THIS_MODULE,
+	},
 };
 
 static inline int s3c2400_serial_init(void)
@@ -1251,7 +1250,7 @@ static inline int s3c2400_serial_init(void)
 
 static inline void s3c2400_serial_exit(void)
 {
-	driver_unregister(&s3c2400_serial_drv);
+	platform_driver_unregister(&s3c2400_serial_drv);
 }
 
 #define s3c2400_uart_inf_at &s3c2400_uart_inf
@@ -1333,18 +1332,20 @@ static struct s3c24xx_uart_info s3c2410_uart_inf = {
 
 /* device management */
 
-static int s3c2410_serial_probe(struct device *dev)
+static int s3c2410_serial_probe(struct platform_device *dev)
 {
 	return s3c24xx_serial_probe(dev, &s3c2410_uart_inf);
 }
 
-static struct device_driver s3c2410_serial_drv = {
-	.name		= "s3c2410-uart",
-	.bus		= &platform_bus_type,
+static struct platform_driver s3c2410_serial_drv = {
 	.probe		= s3c2410_serial_probe,
 	.remove		= s3c24xx_serial_remove,
 	.suspend	= s3c24xx_serial_suspend,
 	.resume		= s3c24xx_serial_resume,
+	.driver		= {
+		.name	= "s3c2410-uart",
+		.owner	= THIS_MODULE,
+	},
 };
 
 static inline int s3c2410_serial_init(void)
@@ -1354,7 +1355,7 @@ static inline int s3c2410_serial_init(void)
 
 static inline void s3c2410_serial_exit(void)
 {
-	driver_unregister(&s3c2410_serial_drv);
+	platform_driver_unregister(&s3c2410_serial_drv);
 }
 
 #define s3c2410_uart_inf_at &s3c2410_uart_inf
@@ -1493,19 +1494,21 @@ static struct s3c24xx_uart_info s3c2440_uart_inf = {
 
 /* device management */
 
-static int s3c2440_serial_probe(struct device *dev)
+static int s3c2440_serial_probe(struct platform_device *dev)
 {
 	dbg("s3c2440_serial_probe: dev=%p\n", dev);
 	return s3c24xx_serial_probe(dev, &s3c2440_uart_inf);
 }
 
-static struct device_driver s3c2440_serial_drv = {
-	.name		= "s3c2440-uart",
-	.bus		= &platform_bus_type,
+static struct platform_driver s3c2440_serial_drv = {
 	.probe		= s3c2440_serial_probe,
 	.remove		= s3c24xx_serial_remove,
 	.suspend	= s3c24xx_serial_suspend,
 	.resume		= s3c24xx_serial_resume,
+	.driver		= {
+		.name	= "s3c2440-uart",
+		.owner	= THIS_MODULE,
+	},
 };
 
 
@@ -1516,7 +1519,7 @@ static inline int s3c2440_serial_init(void)
 
 static inline void s3c2440_serial_exit(void)
 {
-	driver_unregister(&s3c2440_serial_drv);
+	platform_driver_unregister(&s3c2440_serial_drv);
 }
 
 #define s3c2440_uart_inf_at &s3c2440_uart_inf
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index dd8aed24235..25a086458ab 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -35,7 +35,7 @@
 #include <linux/init.h>
 #include <linux/console.h>
 #include <linux/sysrq.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/serial_core.h>
@@ -156,19 +156,16 @@ static void sa1100_stop_tx(struct uart_port *port)
 }
 
 /*
- * interrupts may not be disabled on entry
+ * port locked and interrupts disabled
  */
 static void sa1100_start_tx(struct uart_port *port)
 {
 	struct sa1100_port *sport = (struct sa1100_port *)port;
-	unsigned long flags;
 	u32 utcr3;
 
-	spin_lock_irqsave(&sport->port.lock, flags);
 	utcr3 = UART_GET_UTCR3(sport);
 	sport->port.read_status_mask |= UTSR0_TO_SM(UTSR0_TFS);
 	UART_PUT_UTCR3(sport, utcr3 | UTCR3_TIE);
-	spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
 /*
@@ -834,29 +831,28 @@ static struct uart_driver sa1100_reg = {
 	.cons			= SA1100_CONSOLE,
 };
 
-static int sa1100_serial_suspend(struct device *_dev, pm_message_t state, u32 level)
+static int sa1100_serial_suspend(struct platform_device *dev, pm_message_t state)
 {
-	struct sa1100_port *sport = dev_get_drvdata(_dev);
+	struct sa1100_port *sport = platform_get_drvdata(dev);
 
-	if (sport && level == SUSPEND_DISABLE)
+	if (sport)
 		uart_suspend_port(&sa1100_reg, &sport->port);
 
 	return 0;
 }
 
-static int sa1100_serial_resume(struct device *_dev, u32 level)
+static int sa1100_serial_resume(struct platform_device *dev)
 {
-	struct sa1100_port *sport = dev_get_drvdata(_dev);
+	struct sa1100_port *sport = platform_get_drvdata(dev);
 
-	if (sport && level == RESUME_ENABLE)
+	if (sport)
 		uart_resume_port(&sa1100_reg, &sport->port);
 
 	return 0;
 }
 
-static int sa1100_serial_probe(struct device *_dev)
+static int sa1100_serial_probe(struct platform_device *dev)
 {
-	struct platform_device *dev = to_platform_device(_dev);
 	struct resource *res = dev->resource;
 	int i;
 
@@ -869,9 +865,9 @@ static int sa1100_serial_probe(struct device *_dev)
 			if (sa1100_ports[i].port.mapbase != res->start)
 				continue;
 
-			sa1100_ports[i].port.dev = _dev;
+			sa1100_ports[i].port.dev = &dev->dev;
 			uart_add_one_port(&sa1100_reg, &sa1100_ports[i].port);
-			dev_set_drvdata(_dev, &sa1100_ports[i]);
+			platform_set_drvdata(dev, &sa1100_ports[i]);
 			break;
 		}
 	}
@@ -879,11 +875,11 @@ static int sa1100_serial_probe(struct device *_dev)
 	return 0;
 }
 
-static int sa1100_serial_remove(struct device *_dev)
+static int sa1100_serial_remove(struct platform_device *pdev)
 {
-	struct sa1100_port *sport = dev_get_drvdata(_dev);
+	struct sa1100_port *sport = platform_get_drvdata(pdev);
 
-	dev_set_drvdata(_dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 
 	if (sport)
 		uart_remove_one_port(&sa1100_reg, &sport->port);
@@ -891,13 +887,14 @@ static int sa1100_serial_remove(struct device *_dev)
 	return 0;
 }
 
-static struct device_driver sa11x0_serial_driver = {
-	.name		= "sa11x0-uart",
-	.bus		= &platform_bus_type,
+static struct platform_driver sa11x0_serial_driver = {
 	.probe		= sa1100_serial_probe,
 	.remove		= sa1100_serial_remove,
 	.suspend	= sa1100_serial_suspend,
 	.resume		= sa1100_serial_resume,
+	.driver		= {
+		.name	= "sa11x0-uart",
+	},
 };
 
 static int __init sa1100_serial_init(void)
@@ -910,7 +907,7 @@ static int __init sa1100_serial_init(void)
 
 	ret = uart_register_driver(&sa1100_reg);
 	if (ret == 0) {
-		ret = driver_register(&sa11x0_serial_driver);
+		ret = platform_driver_register(&sa11x0_serial_driver);
 		if (ret)
 			uart_unregister_driver(&sa1100_reg);
 	}
@@ -919,7 +916,7 @@ static int __init sa1100_serial_init(void)
 
 static void __exit sa1100_serial_exit(void)
 {
-	driver_unregister(&sa11x0_serial_driver);
+	platform_driver_unregister(&sa11x0_serial_driver);
 	uart_unregister_driver(&sa1100_reg);
 }
 
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 2d8622eef70..c17d680e3f0 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -147,8 +147,7 @@ static int uart_startup(struct uart_state *state, int init_hw)
 	 * once we have successfully opened the port.  Also set
 	 * up the tty->alt_speed kludge
 	 */
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
+	set_bit(TTY_IO_ERROR, &info->tty->flags);
 
 	if (port->type == PORT_UNKNOWN)
 		return 0;
@@ -210,33 +209,45 @@ static void uart_shutdown(struct uart_state *state)
 	struct uart_info *info = state->info;
 	struct uart_port *port = state->port;
 
-	if (!(info->flags & UIF_INITIALIZED))
-		return;
-
 	/*
-	 * Turn off DTR and RTS early.
+	 * Set the TTY IO error marker
 	 */
-	if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
-		uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+	if (info->tty)
+		set_bit(TTY_IO_ERROR, &info->tty->flags);
 
-	/*
-	 * clear delta_msr_wait queue to avoid mem leaks: we may free
-	 * the irq here so the queue might never be woken up.  Note
-	 * that we won't end up waiting on delta_msr_wait again since
-	 * any outstanding file descriptors should be pointing at
-	 * hung_up_tty_fops now.
-	 */
-	wake_up_interruptible(&info->delta_msr_wait);
+	if (info->flags & UIF_INITIALIZED) {
+		info->flags &= ~UIF_INITIALIZED;
 
-	/*
-	 * Free the IRQ and disable the port.
-	 */
-	port->ops->shutdown(port);
+		/*
+		 * Turn off DTR and RTS early.
+		 */
+		if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+			uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+
+		/*
+		 * clear delta_msr_wait queue to avoid mem leaks: we may free
+		 * the irq here so the queue might never be woken up.  Note
+		 * that we won't end up waiting on delta_msr_wait again since
+		 * any outstanding file descriptors should be pointing at
+		 * hung_up_tty_fops now.
+		 */
+		wake_up_interruptible(&info->delta_msr_wait);
+
+		/*
+		 * Free the IRQ and disable the port.
+		 */
+		port->ops->shutdown(port);
+
+		/*
+		 * Ensure that the IRQ handler isn't running on another CPU.
+		 */
+		synchronize_irq(port->irq);
+	}
 
 	/*
-	 * Ensure that the IRQ handler isn't running on another CPU.
+	 * kill off our tasklet
 	 */
-	synchronize_irq(port->irq);
+	tasklet_kill(&info->tlet);
 
 	/*
 	 * Free the transmit buffer page.
@@ -245,15 +256,6 @@ static void uart_shutdown(struct uart_state *state)
 		free_page((unsigned long)info->xmit.buf);
 		info->xmit.buf = NULL;
 	}
-
-	/*
-	 * kill off our tasklet
-	 */
-	tasklet_kill(&info->tlet);
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
-
-	info->flags &= ~UIF_INITIALIZED;
 }
 
 /**
@@ -1777,7 +1779,7 @@ struct baud_rates {
 	unsigned int cflag;
 };
 
-static struct baud_rates baud_rates[] = {
+static const struct baud_rates baud_rates[] = {
 	{ 921600, B921600 },
 	{ 460800, B460800 },
 	{ 230400, B230400 },
@@ -1929,14 +1931,25 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port)
 
 	if (state->info && state->info->flags & UIF_INITIALIZED) {
 		struct uart_ops *ops = port->ops;
+		int ret;
 
 		ops->set_mctrl(port, 0);
-		ops->startup(port);
-		uart_change_speed(state, NULL);
-		spin_lock_irq(&port->lock);
-		ops->set_mctrl(port, port->mctrl);
-		ops->start_tx(port);
-		spin_unlock_irq(&port->lock);
+		ret = ops->startup(port);
+		if (ret == 0) {
+			uart_change_speed(state, NULL);
+			spin_lock_irq(&port->lock);
+			ops->set_mctrl(port, port->mctrl);
+			ops->start_tx(port);
+			spin_unlock_irq(&port->lock);
+		} 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);
+		}
 	}
 
 	up(&state->sem);
@@ -1960,6 +1973,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
 		break;
 	case UPIO_MEM:
 	case UPIO_MEM32:
+	case UPIO_AU:
 		snprintf(address, sizeof(address),
 			 "MMIO 0x%lx", port->mapbase);
 		break;
@@ -1968,7 +1982,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
 		break;
 	}
 
-	printk(KERN_INFO "%s%d at %s (irq = %d) is a %s\n",
+	printk(KERN_INFO "%s%s%s%d at %s (irq = %d) is a %s\n",
+	       port->dev ? port->dev->bus_id : "",
+	       port->dev ? ": " : "",
 	       drv->dev_name, port->line, address, port->irq, uart_type(port));
 }
 
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index 1ae0b381c16..7ce0c7e66d3 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -85,7 +85,7 @@ struct multi_id {
 	int multi;		/* 1 = multifunction, > 1 = # ports */
 };
 
-static struct multi_id multi_id[] = {
+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 },
@@ -354,8 +354,8 @@ next_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse)
 
 static int simple_config(dev_link_t *link)
 {
-	static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
-	static int size_table[2] = { 8, 16 };
+	static const kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
+	static const int size_table[2] = { 8, 16 };
 	client_handle_t handle = link->handle;
 	struct serial_info *info = link->priv;
 	struct serial_cfg_mem *cfg_mem;
@@ -859,6 +859,7 @@ static struct pcmcia_device_id serial_ids[] = {
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0175, 0x0000, "DP83903.cis"),
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0035, "3CXEM556.cis"),
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x003d, "3CXEM556.cis"),
+	PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0x0710, "SW_7xx_SER.cis"),	/* Sierra Wireless AC710/AC750 GPRS Network Adapter R1 */
 	PCMCIA_DEVICE_CIS_PROD_ID12("MultiTech", "PCMCIA 56K DataFax", 0x842047ee, 0xc2efcf03, "MT5634ZLX.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID12("ADVANTECH", "COMpad-32/85B-4", 0x96913a85, 0xcec8f102, "COMpad4.cis"),
 	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96913a85, 0x8fbe92ae, 0x0877b627, "COMpad2.cis"),
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 51226630786..430754ebac8 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -967,7 +967,7 @@ static int sci_startup(struct uart_port *port)
 #endif
 
 	sci_request_irq(s);
-	sci_start_tx(port, 1);
+	sci_start_tx(port);
 	sci_start_rx(port, 1);
 
 	return 0;
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index e971156daa6..ba9381fd3f2 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -274,7 +274,6 @@ static void transmit_chars(struct uart_sunsab_port *up,
 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {
 		up->interrupt_mask1 |= SAB82532_IMR1_XPR;
 		writeb(up->interrupt_mask1, &up->regs->w.imr1);
-		uart_write_wakeup(&up->port);
 		return;
 	}
 
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 5959e6755a8..f0738533f39 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -518,11 +518,7 @@ static void sunsu_change_mouse_baud(struct uart_sunsu_port *up)
 
 	quot = up->port.uartclk / (16 * new_baud);
 
-	spin_unlock(&up->port.lock);
-
 	sunsu_change_speed(&up->port, up->cflag, 0, quot);
-
-	spin_lock(&up->port.lock);
 }
 
 static void receive_kbd_ms_chars(struct uart_sunsu_port *up, struct pt_regs *regs, int is_break)
@@ -1445,7 +1441,7 @@ static void sunsu_console_write(struct console *co, const char *s,
  *	- initialize the serial port
  *	Return non-zero if we didn't find a serial port.
  */
-static int __init sunsu_console_setup(struct console *co, char *options)
+static int sunsu_console_setup(struct console *co, char *options)
 {
 	struct uart_port *port;
 	int baud = 9600;
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index d75445738c8..7653d6cf05a 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -517,10 +517,9 @@ static void sunzilog_transmit_chars(struct uart_sunzilog_port *up,
 	if (up->port.info == NULL)
 		goto ack_tx_int;
 	xmit = &up->port.info->xmit;
-	if (uart_circ_empty(xmit)) {
-		uart_write_wakeup(&up->port);
+	if (uart_circ_empty(xmit))
 		goto ack_tx_int;
-	}
+
 	if (uart_tx_stopped(&up->port))
 		goto ack_tx_int;
 
diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c
index 0c5d65a08f6..865d4dea65d 100644
--- a/drivers/serial/vr41xx_siu.c
+++ b/drivers/serial/vr41xx_siu.c
@@ -26,7 +26,7 @@
 #endif
 
 #include <linux/console.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/err.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
@@ -924,7 +924,7 @@ static struct uart_driver siu_uart_driver = {
 	.cons		= SERIAL_VR41XX_CONSOLE,
 };
 
-static int siu_probe(struct device *dev)
+static int siu_probe(struct platform_device *dev)
 {
 	struct uart_port *port;
 	int num, i, retval;
@@ -941,7 +941,7 @@ static int siu_probe(struct device *dev)
 	for (i = 0; i < num; i++) {
 		port = &siu_uart_ports[i];
 		port->ops = &siu_uart_ops;
-		port->dev = dev;
+		port->dev = &dev->dev;
 
 		retval = uart_add_one_port(&siu_uart_driver, port);
 		if (retval < 0) {
@@ -958,14 +958,14 @@ static int siu_probe(struct device *dev)
 	return 0;
 }
 
-static int siu_remove(struct device *dev)
+static int siu_remove(struct platform_device *dev)
 {
 	struct uart_port *port;
 	int i;
 
 	for (i = 0; i < siu_uart_driver.nr; i++) {
 		port = &siu_uart_ports[i];
-		if (port->dev == dev) {
+		if (port->dev == &dev->dev) {
 			uart_remove_one_port(&siu_uart_driver, port);
 			port->dev = NULL;
 		}
@@ -976,18 +976,15 @@ static int siu_remove(struct device *dev)
 	return 0;
 }
 
-static int siu_suspend(struct device *dev, pm_message_t state, u32 level)
+static int siu_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct uart_port *port;
 	int i;
 
-	if (level != SUSPEND_DISABLE)
-		return 0;
-
 	for (i = 0; i < siu_uart_driver.nr; i++) {
 		port = &siu_uart_ports[i];
 		if ((port->type == PORT_VR41XX_SIU ||
-		     port->type == PORT_VR41XX_DSIU) && port->dev == dev)
+		     port->type == PORT_VR41XX_DSIU) && port->dev == &dev->dev)
 			uart_suspend_port(&siu_uart_driver, port);
 
 	}
@@ -995,18 +992,15 @@ static int siu_suspend(struct device *dev, pm_message_t state, u32 level)
 	return 0;
 }
 
-static int siu_resume(struct device *dev, u32 level)
+static int siu_resume(struct platform_device *dev)
 {
 	struct uart_port *port;
 	int i;
 
-	if (level != RESUME_ENABLE)
-		return 0;
-
 	for (i = 0; i < siu_uart_driver.nr; i++) {
 		port = &siu_uart_ports[i];
 		if ((port->type == PORT_VR41XX_SIU ||
-		     port->type == PORT_VR41XX_DSIU) && port->dev == dev)
+		     port->type == PORT_VR41XX_DSIU) && port->dev == &dev->dev)
 			uart_resume_port(&siu_uart_driver, port);
 	}
 
@@ -1015,13 +1009,14 @@ static int siu_resume(struct device *dev, u32 level)
 
 static struct platform_device *siu_platform_device;
 
-static struct device_driver siu_device_driver = {
-	.name		= "SIU",
-	.bus		= &platform_bus_type,
+static struct platform_driver siu_device_driver = {
 	.probe		= siu_probe,
 	.remove		= siu_remove,
 	.suspend	= siu_suspend,
 	.resume		= siu_resume,
+	.driver		= {
+		.name	= "SIU",
+	},
 };
 
 static int __devinit vr41xx_siu_init(void)
@@ -1032,7 +1027,7 @@ static int __devinit vr41xx_siu_init(void)
 	if (IS_ERR(siu_platform_device))
 		return PTR_ERR(siu_platform_device);
 
-	retval = driver_register(&siu_device_driver);
+	retval = platform_driver_register(&siu_device_driver);
 	if (retval < 0)
 		platform_device_unregister(siu_platform_device);
 
@@ -1041,7 +1036,7 @@ static int __devinit vr41xx_siu_init(void)
 
 static void __devexit vr41xx_siu_exit(void)
 {
-	driver_unregister(&siu_device_driver);
+	platform_driver_unregister(&siu_device_driver);
 
 	platform_device_unregister(siu_platform_device);
 }