Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (79 commits)
  TTY: serial_core: Fix crash if DCD drop during suspend
  tty/serial: atmel_serial: bootconsole removed from auto-enumerates
  Revert "TTY: call tty_driver_lookup_tty unconditionally"
  tty/serial: atmel_serial: add device tree support
  tty/serial: atmel_serial: auto-enumerate ports
  tty/serial: atmel_serial: whitespace and braces modifications
  tty/serial: atmel_serial: change platform_data variable name
  tty/serial: RS485 bindings for device tree
  TTY: call tty_driver_lookup_tty unconditionally
  TTY: pty, release tty in all ptmx_open fail paths
  TTY: make tty_add_file non-failing
  TTY: drop driver reference in tty_open fail path
  8250_pci: Fix kernel panic when pch_uart is disabled
  h8300: drivers/serial/Kconfig was moved
  parport_pc: release IO region properly if unsupported ITE887x card is found
  tty: Support compat_ioctl get/set termios_locked
  hvc_console: display printk messages on console.
  TTY: snyclinkmp: forever loop in tx_load_dma_buffer()
  tty/n_gsm: avoid fifo overflow in gsm_dlci_data_output
  tty/n_gsm: fix a bug in gsm_dlci_data_output (adaption = 2 case)
  ...

Fix up Conflicts in:
 - drivers/tty/serial/8250_pci.c
	Trivial conflict with removed duplicate device ID
 - drivers/tty/serial/atmel_serial.c
	Annoying silly conflict between "specify the port num via
	platform_data" and other changes to atmel_console_init

17 files changed, 99 insertions, 359 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7536b9cbb072..795126ea4935 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -727,7 +727,6 @@ config ARCH_S3C64XX
 	select ARCH_REQUIRE_GPIOLIB
 	select SAMSUNG_CLKSRC
 	select SAMSUNG_IRQ_VIC_TIMER
-	select SAMSUNG_IRQ_UART
 	select S3C_GPIO_TRACK
 	select S3C_GPIO_PULL_UPDOWN
 	select S3C_GPIO_CFG_S3C24XX
diff --git a/arch/arm/mach-s3c64xx/dev-uart.c b/arch/arm/mach-s3c64xx/dev-uart.c
index f797f748b999..c681b99eda08 100644
--- a/arch/arm/mach-s3c64xx/dev-uart.c
+++ b/arch/arm/mach-s3c64xx/dev-uart.c
@@ -37,21 +37,10 @@ static struct resource s3c64xx_uart0_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S3CUART_RX0,
-		.end	= IRQ_S3CUART_RX0,
+		.start	= IRQ_UART0,
+		.end	= IRQ_UART0,
 		.flags	= IORESOURCE_IRQ,
 	},
-	[2] = {
-		.start	= IRQ_S3CUART_TX0,
-		.end	= IRQ_S3CUART_TX0,
-		.flags	= IORESOURCE_IRQ,
-
-	},
-	[3] = {
-		.start	= IRQ_S3CUART_ERR0,
-		.end	= IRQ_S3CUART_ERR0,
-		.flags	= IORESOURCE_IRQ,
-	}
 };
 
 static struct resource s3c64xx_uart1_resource[] = {
@@ -61,19 +50,8 @@ static struct resource s3c64xx_uart1_resource[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S3CUART_RX1,
-		.end	= IRQ_S3CUART_RX1,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S3CUART_TX1,
-		.end	= IRQ_S3CUART_TX1,
-		.flags	= IORESOURCE_IRQ,
-
-	},
-	[3] = {
-		.start	= IRQ_S3CUART_ERR1,
-		.end	= IRQ_S3CUART_ERR1,
+		.start	= IRQ_UART1,
+		.end	= IRQ_UART1,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -85,19 +63,8 @@ static struct resource s3c6xx_uart2_resource[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S3CUART_RX2,
-		.end	= IRQ_S3CUART_RX2,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S3CUART_TX2,
-		.end	= IRQ_S3CUART_TX2,
-		.flags	= IORESOURCE_IRQ,
-
-	},
-	[3] = {
-		.start	= IRQ_S3CUART_ERR2,
-		.end	= IRQ_S3CUART_ERR2,
+		.start	= IRQ_UART2,
+		.end	= IRQ_UART2,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -109,19 +76,8 @@ static struct resource s3c64xx_uart3_resource[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S3CUART_RX3,
-		.end	= IRQ_S3CUART_RX3,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S3CUART_TX3,
-		.end	= IRQ_S3CUART_TX3,
-		.flags	= IORESOURCE_IRQ,
-
-	},
-	[3] = {
-		.start	= IRQ_S3CUART_ERR3,
-		.end	= IRQ_S3CUART_ERR3,
+		.start	= IRQ_UART3,
+		.end	= IRQ_UART3,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/arm/mach-s3c64xx/include/mach/irqs.h b/arch/arm/mach-s3c64xx/include/mach/irqs.h
index c026f67a80de..443f85b3c203 100644
--- a/arch/arm/mach-s3c64xx/include/mach/irqs.h
+++ b/arch/arm/mach-s3c64xx/include/mach/irqs.h
@@ -27,36 +27,6 @@
 #define IRQ_VIC0_BASE	S3C_IRQ(0)
 #define IRQ_VIC1_BASE	S3C_IRQ(32)
 
-/* UART interrupts, each UART has 4 intterupts per channel so
- * use the space between the ISA and S3C main interrupts. Note, these
- * are not in the same order as the S3C24XX series! */
-
-#define IRQ_S3CUART_BASE0	(16)
-#define IRQ_S3CUART_BASE1	(20)
-#define IRQ_S3CUART_BASE2	(24)
-#define IRQ_S3CUART_BASE3	(28)
-
-#define UART_IRQ_RXD		(0)
-#define UART_IRQ_ERR		(1)
-#define UART_IRQ_TXD		(2)
-#define UART_IRQ_MODEM		(3)
-
-#define IRQ_S3CUART_RX0		(IRQ_S3CUART_BASE0 + UART_IRQ_RXD)
-#define IRQ_S3CUART_TX0		(IRQ_S3CUART_BASE0 + UART_IRQ_TXD)
-#define IRQ_S3CUART_ERR0	(IRQ_S3CUART_BASE0 + UART_IRQ_ERR)
-
-#define IRQ_S3CUART_RX1		(IRQ_S3CUART_BASE1 + UART_IRQ_RXD)
-#define IRQ_S3CUART_TX1		(IRQ_S3CUART_BASE1 + UART_IRQ_TXD)
-#define IRQ_S3CUART_ERR1	(IRQ_S3CUART_BASE1 + UART_IRQ_ERR)
-
-#define IRQ_S3CUART_RX2		(IRQ_S3CUART_BASE2 + UART_IRQ_RXD)
-#define IRQ_S3CUART_TX2		(IRQ_S3CUART_BASE2 + UART_IRQ_TXD)
-#define IRQ_S3CUART_ERR2	(IRQ_S3CUART_BASE2 + UART_IRQ_ERR)
-
-#define IRQ_S3CUART_RX3		(IRQ_S3CUART_BASE3 + UART_IRQ_RXD)
-#define IRQ_S3CUART_TX3		(IRQ_S3CUART_BASE3 + UART_IRQ_TXD)
-#define IRQ_S3CUART_ERR3	(IRQ_S3CUART_BASE3 + UART_IRQ_ERR)
-
 /* VIC based IRQs */
 
 #define S3C64XX_IRQ_VIC0(x)	(IRQ_VIC0_BASE + (x))
diff --git a/arch/arm/mach-s3c64xx/irq.c b/arch/arm/mach-s3c64xx/irq.c
index 75d9a0e49193..b07357e94958 100644
--- a/arch/arm/mach-s3c64xx/irq.c
+++ b/arch/arm/mach-s3c64xx/irq.c
@@ -25,29 +25,6 @@
 #include <plat/irq-uart.h>
 #include <plat/cpu.h>
 
-static struct s3c_uart_irq uart_irqs[] = {
-	[0] = {
-		.regs		= S3C_VA_UART0,
-		.base_irq	= IRQ_S3CUART_BASE0,
-		.parent_irq	= IRQ_UART0,
-	},
-	[1] = {
-		.regs		= S3C_VA_UART1,
-		.base_irq	= IRQ_S3CUART_BASE1,
-		.parent_irq	= IRQ_UART1,
-	},
-	[2] = {
-		.regs		= S3C_VA_UART2,
-		.base_irq	= IRQ_S3CUART_BASE2,
-		.parent_irq	= IRQ_UART2,
-	},
-	[3] = {
-		.regs		= S3C_VA_UART3,
-		.base_irq	= IRQ_S3CUART_BASE3,
-		.parent_irq	= IRQ_UART3,
-	},
-};
-
 /* setup the sources the vic should advertise resume for, even though it
  * is not doing the wake (set_irq_wake needs to be valid) */
 #define IRQ_VIC0_RESUME (1 << (IRQ_RTC_TIC - IRQ_VIC0_BASE))
@@ -67,6 +44,4 @@ void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid)
 
 	/* add the timer sub-irqs */
 	s3c_init_vic_timer_irq(5, IRQ_TIMER0);
-
-	s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs));
 }
diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig
index 9843c954c042..9a197e55f669 100644
--- a/arch/arm/plat-s5p/Kconfig
+++ b/arch/arm/plat-s5p/Kconfig
@@ -22,7 +22,6 @@ config PLAT_S5P
 	select PLAT_SAMSUNG
 	select SAMSUNG_CLKSRC
 	select SAMSUNG_IRQ_VIC_TIMER
-	select SAMSUNG_IRQ_UART
 	help
 	  Base platform code for Samsung's S5P series SoC.
 
diff --git a/arch/arm/plat-s5p/dev-uart.c b/arch/arm/plat-s5p/dev-uart.c
index afaf87fdb93e..c9308db36183 100644
--- a/arch/arm/plat-s5p/dev-uart.c
+++ b/arch/arm/plat-s5p/dev-uart.c
@@ -32,20 +32,10 @@ static struct resource s5p_uart0_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX0,
-		.end	= IRQ_S5P_UART_RX0,
+		.start	= IRQ_UART0,
+		.end	= IRQ_UART0,
 		.flags	= IORESOURCE_IRQ,
 	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX0,
-		.end	= IRQ_S5P_UART_TX0,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR0,
-		.end	= IRQ_S5P_UART_ERR0,
-		.flags	= IORESOURCE_IRQ,
-	}
 };
 
 static struct resource s5p_uart1_resource[] = {
@@ -55,18 +45,8 @@ static struct resource s5p_uart1_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX1,
-		.end	= IRQ_S5P_UART_RX1,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX1,
-		.end	= IRQ_S5P_UART_TX1,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR1,
-		.end	= IRQ_S5P_UART_ERR1,
+		.start	= IRQ_UART1,
+		.end	= IRQ_UART1,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -78,18 +58,8 @@ static struct resource s5p_uart2_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX2,
-		.end	= IRQ_S5P_UART_RX2,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX2,
-		.end	= IRQ_S5P_UART_TX2,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR2,
-		.end	= IRQ_S5P_UART_ERR2,
+		.start	= IRQ_UART2,
+		.end	= IRQ_UART2,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -102,18 +72,8 @@ static struct resource s5p_uart3_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX3,
-		.end	= IRQ_S5P_UART_RX3,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX3,
-		.end	= IRQ_S5P_UART_TX3,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR3,
-		.end	= IRQ_S5P_UART_ERR3,
+		.start	= IRQ_UART3,
+		.end	= IRQ_UART3,
 		.flags	= IORESOURCE_IRQ,
 	},
 #endif
@@ -127,18 +87,8 @@ static struct resource s5p_uart4_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX4,
-		.end	= IRQ_S5P_UART_RX4,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX4,
-		.end	= IRQ_S5P_UART_TX4,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR4,
-		.end	= IRQ_S5P_UART_ERR4,
+		.start	= IRQ_UART4,
+		.end	= IRQ_UART4,
 		.flags	= IORESOURCE_IRQ,
 	},
 #endif
@@ -152,18 +102,8 @@ static struct resource s5p_uart5_resource[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_S5P_UART_RX5,
-		.end	= IRQ_S5P_UART_RX5,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= IRQ_S5P_UART_TX5,
-		.end	= IRQ_S5P_UART_TX5,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[3] = {
-		.start	= IRQ_S5P_UART_ERR5,
-		.end	= IRQ_S5P_UART_ERR5,
+		.start	= IRQ_UART5,
+		.end	= IRQ_UART5,
 		.flags	= IORESOURCE_IRQ,
 	},
 #endif
diff --git a/arch/arm/plat-s5p/include/plat/irqs.h b/arch/arm/plat-s5p/include/plat/irqs.h
index ba9121c60a2a..144dbfc6506d 100644
--- a/arch/arm/plat-s5p/include/plat/irqs.h
+++ b/arch/arm/plat-s5p/include/plat/irqs.h
@@ -37,41 +37,6 @@
 #define IRQ_VIC1_BASE		S5P_VIC1_BASE
 #define IRQ_VIC2_BASE		S5P_VIC2_BASE
 
-/* UART interrupts, each UART has 4 intterupts per channel so
- * use the space between the ISA and S3C main interrupts. Note, these
- * are not in the same order as the S3C24XX series! */
-
-#define IRQ_S5P_UART_BASE0	(16)
-#define IRQ_S5P_UART_BASE1	(20)
-#define IRQ_S5P_UART_BASE2	(24)
-#define IRQ_S5P_UART_BASE3	(28)
-
-#define UART_IRQ_RXD		(0)
-#define UART_IRQ_ERR		(1)
-#define UART_IRQ_TXD		(2)
-
-#define IRQ_S5P_UART_RX0	(IRQ_S5P_UART_BASE0 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX0	(IRQ_S5P_UART_BASE0 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR0	(IRQ_S5P_UART_BASE0 + UART_IRQ_ERR)
-
-#define IRQ_S5P_UART_RX1	(IRQ_S5P_UART_BASE1 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX1	(IRQ_S5P_UART_BASE1 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR1	(IRQ_S5P_UART_BASE1 + UART_IRQ_ERR)
-
-#define IRQ_S5P_UART_RX2	(IRQ_S5P_UART_BASE2 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX2	(IRQ_S5P_UART_BASE2 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR2	(IRQ_S5P_UART_BASE2 + UART_IRQ_ERR)
-
-#define IRQ_S5P_UART_RX3	(IRQ_S5P_UART_BASE3 + UART_IRQ_RXD)
-#define IRQ_S5P_UART_TX3	(IRQ_S5P_UART_BASE3 + UART_IRQ_TXD)
-#define IRQ_S5P_UART_ERR3	(IRQ_S5P_UART_BASE3 + UART_IRQ_ERR)
-
-/* S3C compatibilty defines */
-#define IRQ_S3CUART_RX0		IRQ_S5P_UART_RX0
-#define IRQ_S3CUART_RX1		IRQ_S5P_UART_RX1
-#define IRQ_S3CUART_RX2		IRQ_S5P_UART_RX2
-#define IRQ_S3CUART_RX3		IRQ_S5P_UART_RX3
-
 /* VIC based IRQs */
 
 #define S5P_IRQ_VIC0(x)		(S5P_VIC0_BASE + (x))
diff --git a/arch/arm/plat-s5p/irq.c b/arch/arm/plat-s5p/irq.c
index a97c08957f49..afdaa1082b9f 100644
--- a/arch/arm/plat-s5p/irq.c
+++ b/arch/arm/plat-s5p/irq.c
@@ -17,42 +17,10 @@
 
 #include <asm/hardware/vic.h>
 
-#include <linux/serial_core.h>
 #include <mach/map.h>
 #include <plat/regs-timer.h>
-#include <plat/regs-serial.h>
 #include <plat/cpu.h>
 #include <plat/irq-vic-timer.h>
-#include <plat/irq-uart.h>
-
-/*
- * Note, we make use of the fact that the parent IRQs, IRQ_UART[0..3]
- * are consecutive when looking up the interrupt in the demux routines.
- */
-static struct s3c_uart_irq uart_irqs[] = {
-	[0] = {
-		.regs		= S5P_VA_UART0,
-		.base_irq	= IRQ_S5P_UART_BASE0,
-		.parent_irq	= IRQ_UART0,
-	},
-	[1] = {
-		.regs		= S5P_VA_UART1,
-		.base_irq	= IRQ_S5P_UART_BASE1,
-		.parent_irq	= IRQ_UART1,
-	},
-	[2] = {
-		.regs		= S5P_VA_UART2,
-		.base_irq	= IRQ_S5P_UART_BASE2,
-		.parent_irq	= IRQ_UART2,
-	},
-#if CONFIG_SERIAL_SAMSUNG_UARTS > 3
-	[3] = {
-		.regs		= S5P_VA_UART3,
-		.base_irq	= IRQ_S5P_UART_BASE3,
-		.parent_irq	= IRQ_UART3,
-	},
-#endif
-};
 
 void __init s5p_init_irq(u32 *vic, u32 num_vic)
 {
@@ -65,6 +33,4 @@ void __init s5p_init_irq(u32 *vic, u32 num_vic)
 #endif
 
 	s3c_init_vic_timer_irq(5, IRQ_TIMER0);
-
-	s3c_init_uart_irqs(uart_irqs, ARRAY_SIZE(uart_irqs));
 }
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index b3e10659e4b8..dffa37bc4a0b 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -65,11 +65,6 @@ config SAMSUNG_IRQ_VIC_TIMER
        help
          Internal configuration to build the VIC timer interrupt code.
 
-config SAMSUNG_IRQ_UART
-       bool
-       help
-         Internal configuration to build the IRQ UART demux code.
-
 # options for gpio configuration support
 
 config SAMSUNG_GPIOLIB_4BIT
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 853764ba8cc5..1105922342fe 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -21,7 +21,6 @@ obj-y				+= dev-asocdma.o
 
 obj-$(CONFIG_SAMSUNG_CLKSRC)	+= clock-clksrc.o
 
-obj-$(CONFIG_SAMSUNG_IRQ_UART)	+= irq-uart.o
 obj-$(CONFIG_SAMSUNG_IRQ_VIC_TIMER) += irq-vic-timer.o
 
 # ADC
diff --git a/arch/arm/plat-samsung/include/plat/regs-serial.h b/arch/arm/plat-samsung/include/plat/regs-serial.h
index bac36fa3becb..720734847027 100644
--- a/arch/arm/plat-samsung/include/plat/regs-serial.h
+++ b/arch/arm/plat-samsung/include/plat/regs-serial.h
@@ -186,6 +186,11 @@
 #define S3C64XX_UINTSP		0x34
 #define S3C64XX_UINTM		0x38
 
+#define S3C64XX_UINTM_RXD	(0)
+#define S3C64XX_UINTM_TXD	(2)
+#define S3C64XX_UINTM_RXD_MSK	(1 << S3C64XX_UINTM_RXD)
+#define S3C64XX_UINTM_TXD_MSK	(1 << S3C64XX_UINTM_TXD)
+
 /* Following are specific to S5PV210 */
 #define S5PV210_UCON_CLKMASK	(1<<10)
 #define S5PV210_UCON_PCLK	(0<<10)
diff --git a/arch/arm/plat-samsung/irq-uart.c b/arch/arm/plat-samsung/irq-uart.c
deleted file mode 100644
index 3014c7226bd1..000000000000
--- a/arch/arm/plat-samsung/irq-uart.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* arch/arm/plat-samsung/irq-uart.c
- *	originally part of arch/arm/plat-s3c64xx/irq.c
- *
- * Copyright 2008 Openmoko, Inc.
- * Copyright 2008 Simtec Electronics
- *      Ben Dooks <ben@simtec.co.uk>
- *      http://armlinux.simtec.co.uk/
- *
- * Samsung- UART Interrupt handling
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/serial_core.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-
-#include <asm/mach/irq.h>
-
-#include <mach/map.h>
-#include <plat/irq-uart.h>
-#include <plat/regs-serial.h>
-#include <plat/cpu.h>
-
-/* Note, we make use of the fact that the parent IRQs, IRQ_UART[0..3]
- * are consecutive when looking up the interrupt in the demux routines.
- */
-static void s3c_irq_demux_uart(unsigned int irq, struct irq_desc *desc)
-{
-	struct s3c_uart_irq *uirq = desc->irq_data.handler_data;
-	struct irq_chip *chip = irq_get_chip(irq);
-	u32 pend = __raw_readl(uirq->regs + S3C64XX_UINTP);
-	int base = uirq->base_irq;
-
-	chained_irq_enter(chip, desc);
-
-	if (pend & (1 << 0))
-		generic_handle_irq(base);
-	if (pend & (1 << 1))
-		generic_handle_irq(base + 1);
-	if (pend & (1 << 2))
-		generic_handle_irq(base + 2);
-	if (pend & (1 << 3))
-		generic_handle_irq(base + 3);
-
-	chained_irq_exit(chip, desc);
-}
-
-static void __init s3c_init_uart_irq(struct s3c_uart_irq *uirq)
-{
-	void __iomem *reg_base = uirq->regs;
-	struct irq_chip_generic *gc;
-	struct irq_chip_type *ct;
-
-	/* mask all interrupts at the start. */
-	__raw_writel(0xf, reg_base + S3C64XX_UINTM);
-
-	gc = irq_alloc_generic_chip("s3c-uart", 1, uirq->base_irq, reg_base,
-				    handle_level_irq);
-
-	if (!gc) {
-		pr_err("%s: irq_alloc_generic_chip for IRQ %u failed\n",
-		       __func__, uirq->base_irq);
-		return;
-	}
-
-	ct = gc->chip_types;
-	ct->chip.irq_ack = irq_gc_ack_set_bit;
-	ct->chip.irq_mask = irq_gc_mask_set_bit;
-	ct->chip.irq_unmask = irq_gc_mask_clr_bit;
-	ct->regs.ack = S3C64XX_UINTP;
-	ct->regs.mask = S3C64XX_UINTM;
-	irq_setup_generic_chip(gc, IRQ_MSK(4), IRQ_GC_INIT_MASK_CACHE,
-			       IRQ_NOREQUEST | IRQ_NOPROBE, 0);
-
-	irq_set_handler_data(uirq->parent_irq, uirq);
-	irq_set_chained_handler(uirq->parent_irq, s3c_irq_demux_uart);
-}
-
-/**
- * s3c_init_uart_irqs() - initialise UART IRQs and the necessary demuxing
- * @irq: The interrupt data for registering
- * @nr_irqs: The number of interrupt descriptions in @irq.
- *
- * Register the UART interrupts specified by @irq including the demuxing
- * routines. This supports the S3C6400 and newer style of devices.
- */
-void __init s3c_init_uart_irqs(struct s3c_uart_irq *irq, unsigned int nr_irqs)
-{
-	for (; nr_irqs > 0; nr_irqs--, irq++)
-		s3c_init_uart_irq(irq);
-}
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 7ed7714573c8..d1f377f5d3b6 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -195,7 +195,7 @@ config UNIX98_PTYS
 
 source "drivers/char/pcmcia/Kconfig"
 
-source "drivers/serial/Kconfig"
+source "drivers/tty/serial/Kconfig"
 
 source "drivers/i2c/Kconfig"
 
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_serial.c b/arch/mips/pmc-sierra/msp71xx/msp_serial.c
index f7261628d8a6..a1c7c7da2336 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_serial.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_serial.c
@@ -27,6 +27,7 @@
 #include <linux/serial.h>
 #include <linux/serial_core.h>
 #include <linux/serial_reg.h>
+#include <linux/slab.h>
 
 #include <asm/bootinfo.h>
 #include <asm/io.h>
@@ -38,6 +39,55 @@
 #include <msp_int.h>
 #include <msp_regs.h>
 
+struct msp_uart_data {
+	int	last_lcr;
+};
+
+static void msp_serial_out(struct uart_port *p, int offset, int value)
+{
+	struct msp_uart_data *d = p->private_data;
+
+	if (offset == UART_LCR)
+		d->last_lcr = value;
+
+	offset <<= p->regshift;
+	writeb(value, p->membase + offset);
+}
+
+static unsigned int msp_serial_in(struct uart_port *p, int offset)
+{
+	offset <<= p->regshift;
+
+	return readb(p->membase + offset);
+}
+
+static int msp_serial_handle_irq(struct uart_port *p)
+{
+	struct msp_uart_data *d = p->private_data;
+	unsigned int iir = readb(p->membase + (UART_IIR << p->regshift));
+
+	if (serial8250_handle_irq(p, iir)) {
+		return 1;
+	} else if ((iir & UART_IIR_BUSY) == UART_IIR_BUSY) {
+		/*
+		 * The DesignWare APB UART has an Busy Detect (0x07) interrupt
+		 * meaning an LCR write attempt occurred while the UART was
+		 * busy. The interrupt must be cleared by reading the UART
+		 * status register (USR) and the LCR re-written.
+		 *
+		 * Note: MSP reserves 0x20 bytes of address space for the UART
+		 * and the USR is mapped in a separate block at an offset of
+		 * 0xc0 from the start of the UART.
+		 */
+		(void)readb(p->membase + 0xc0);
+		writeb(d->last_lcr, p->membase + (UART_LCR << p->regshift));
+
+		return 1;
+	}
+
+	return 0;
+}
+
 void __init msp_serial_setup(void)
 {
 	char    *s;
@@ -59,13 +109,22 @@ void __init msp_serial_setup(void)
 	up.irq          = MSP_INT_UART0;
 	up.uartclk      = uartclk;
 	up.regshift     = 2;
-	up.iotype       = UPIO_DWAPB; /* UPIO_MEM like */
+	up.iotype       = UPIO_MEM;
 	up.flags        = ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
 	up.type         = PORT_16550A;
 	up.line         = 0;
-	up.private_data		= (void*)UART0_STATUS_REG;
-	if (early_serial_setup(&up))
-		printk(KERN_ERR "Early serial init of port 0 failed\n");
+	up.serial_out	= msp_serial_out;
+	up.serial_in	= msp_serial_in;
+	up.handle_irq	= msp_serial_handle_irq;
+	up.private_data	= kzalloc(sizeof(struct msp_uart_data), GFP_KERNEL);
+	if (!up.private_data) {
+		pr_err("failed to allocate uart private data\n");
+		return;
+	}
+	if (early_serial_setup(&up)) {
+		kfree(up.private_data);
+		pr_err("Early serial init of port 0 failed\n");
+	}
 
 	/* Initialize the second serial port, if one exists */
 	switch (mips_machtype) {
@@ -88,6 +147,8 @@ void __init msp_serial_setup(void)
 	up.irq          = MSP_INT_UART1;
 	up.line         = 1;
 	up.private_data		= (void*)UART1_STATUS_REG;
-	if (early_serial_setup(&up))
-		printk(KERN_ERR "Early serial init of port 1 failed\n");
+	if (early_serial_setup(&up)) {
+		kfree(up.private_data);
+		pr_err("Early serial init of port 1 failed\n");
+	}
 }
diff --git a/arch/powerpc/include/asm/udbg.h b/arch/powerpc/include/asm/udbg.h
index 93e05d1b34b2..5354ae91bdde 100644
--- a/arch/powerpc/include/asm/udbg.h
+++ b/arch/powerpc/include/asm/udbg.h
@@ -54,6 +54,7 @@ extern void __init udbg_init_40x_realmode(void);
 extern void __init udbg_init_cpm(void);
 extern void __init udbg_init_usbgecko(void);
 extern void __init udbg_init_wsp(void);
+extern void __init udbg_init_ehv_bc(void);
 
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_UDBG_H */
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index faa82c1f3f68..b4607a91d1f4 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -67,6 +67,8 @@ void __init udbg_early_init(void)
 	udbg_init_usbgecko();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_WSP)
 	udbg_init_wsp();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_EHV_BC)
+	udbg_init_ehv_bc();
 #endif
 
 #ifdef CONFIG_PPC_EARLY_DEBUG
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index fe73276e026b..e6379526675b 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -14,6 +14,8 @@
 
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
 #include <linux/sfi.h>
 #include <linux/intel_pmic_gpio.h>
 #include <linux/spi/spi.h>
@@ -392,6 +394,7 @@ static void __init *max3111_platform_data(void *info)
 	struct spi_board_info *spi_info = info;
 	int intr = get_gpio_by_name("max3111_int");
 
+	spi_info->mode = SPI_MODE_0;
 	if (intr == -1)
 		return NULL;
 	spi_info->irq = intr + MRST_IRQ_OFFSET;