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 2efb317153ce..67e9afa000c1 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 4d75cdfa0a0a..d2bcd1f87cd6 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 b1b459efda52..a607b98016db 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 000000000000..06ae8fbcc947
--- /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 b7a5dd710228..59ba5d993b4b 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 431aa5761a7a..8b4947933d9b 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 0e21f583690e..8d92adfbb8bd 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 6b321e82cafb..b79ed0665d51 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 b745a1b9e835..ad47c1b84c3f 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 11c7dc483f93..d7c7c7180e33 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 679e678c7e6a..ddd0307fece2 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 1ff629c74750..89d7bd3eaee3 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 78c1f36ad9b7..87ef368384fb 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 25825f2aba22..987d22b53c22 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 4b0786e7eb7f..d789ee55cbb7 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 15ad58d94889..fd9e53ed3feb 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 40d3e7139cfe..08c42c000188 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 e63b9dffc8d7..4d8516d1bb71 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 4c985e6b3784..83c4c1216587 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 0c5c96a582b3..771676abee60 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 e2ebdcad553c..47f7404cb045 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 0585ab27ffde..b8727d9bf690 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 efe79b1fd431..8f83e4007ecd 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 189064607709..7633132a10aa 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 672b359b07ce..ff5e6309d682 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 c361c6fb0809..47681c4654e4 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 dd8aed242357..25a086458ab9 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 2d8622eef701..c17d680e3f04 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 1ae0b381c162..7ce0c7e66d37 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 512266307866..430754ebac8a 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 e971156daa60..ba9381fd3f2d 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 5959e6755a81..f0738533f39a 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 d75445738c88..7653d6cf05af 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 0c5d65a08f6e..865d4dea65df 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);
 }