[SERIAL] Fix oops when removing suspended serial port

A serial card might have been removed when the system is resumed.
This results in a suspended port being shut down, which results in
the ports shutdown method being called twice in a row.  This causes
BUGs.  Avoid this by tracking the suspended state separately from
the initialised state.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: maximilian attems <maks@sternwelten.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

The following patch gets rid of CONFIG_TSI108_BRIDGE.  I add UPIO_TSI to
handle IIR and IER register in serial_in and serial_out.

(1) the reason to rewrite serial_in:

    TSI108 rev Z1 version ERRATA.  Reading the UART's Interrupt
    Identification Register (IIR) clears the Transmit Holding Register
    Empty (THRE) and Transmit buffer Empty (TEMP) interrupts even if they
    are not enabled in the Interrupt Enable Register (IER).  This leads to
    loss of the interrupts.  Interrupts are not cleared when reading UART
    registers as 32-bit word.

(2) the reason to rewrite serial_out:

    Check for UART_IER_UUE bit in the autoconfig routine.  This section
    of autoconfig is excluded for Tsi108/109 because bits 7 and 6 are
    reserved for internal use.  They are R/W bits.  In addition to
    incorrect identification, changing these bits (from 00) will make
    Tsi108/109 UART non-functional.

Signed-off-by: Roy Zang	<tie-fei.zang@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Ensure 8250_pci quirks are not marked __devinit
  [SERIAL] Convert fifosize to an unsigned int

Some UARTs have more than 255 bytes of FIFO, which can't be
represented by an unsigned char.  Change the kernel's internal
structure to be an unsigned int, but still export an unsigned char
via the TIOCGSERIAL ioctl.  If the TIOCSSERIAL ioctl provides a
fifo size of 0, assume this means "don't change" otherwise we'll
corrupt the larger fifo sizes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Also fixes all serial drivers.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Patch from Ben Dooks

Serial port support for the on-board UART blocks
on the Samsung S3C2412 and S3C2413 UARTs.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (42 commits)
  [ARM] Fix tosa build error
  [ARM] 3610/1: Make reboot work on Versatile
  [ARM] 3609/1: S3C24XX: defconfig update for s3c2410_defconfig
  [ARM] 3591/1: Anubis: IDE device definitions
  [ARM] Include asm/hardware.h not asm/arch/hardware.h
  [ARM] 3594/1: Poodle: Add touchscreen support + other updates
  [ARM] 3564/1: sharpsl_pm: Abstract some machine specific parameters
  [ARM] 3561/1: Poodle: Correct the MMC/SD power control
  [ARM] 3593/1: Add reboot and shutdown handlers for Zaurus handhelds
  [ARM] 3599/1: AT91RM9200 remove global variables
  [ARM] 3607/1: AT91RM9200 misc fixes
  [ARM] 3605/1: AT91RM9200 Power Management
  [ARM] 3604/1: AT91RM9200 New boards
  [ARM] 3603/1: AT91RM9200 remove old files
  [ARM] 3592/1: AT91RM9200 Serial driver update
  [ARM] 3590/1: AT91RM9200 Platform devices support
  [ARM] 3589/1: AT91RM9200 DK/EK board update
  [ARM] 3588/1: AT91RM9200 CSB337/637 board update
  [ARM] 3587/1: AT91RM9200 hardware headers
  [ARM] 3586/1: AT91RM9200 header update
  ...

Patch from Andrew Victor

This patch includes a number of updates to the AT91RM9200 serial driver.

Changes include:
1. Conversion to a platform_driver.  [Ivan Kokshaysky]
2. Replaced all references to AT91RM9200 with AT91.  This driver can now
also be used for the AT91SAM9216.
3. Allow TIOCM_LOOP to configure local loopback mode.
4. Cleaned up the 'read_status_mask' usage and interrupt handler code.
[Chip Coldwell]
5. Suspend/resume support.  [David Brownell]

There are a few 'unused variable' warning when compiling this - I
removed the new DMA support to keep this first patch simpler.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Conflicts:

	include/asm-powerpc/unistd.h
	include/asm-sparc/unistd.h
	include/asm-sparc64/unistd.h

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

The locking for the uart_port is over complicated, and can be
simplified if we introduce a flag to indicate that a port is "dead"
and will be removed.

This also helps the validator because it removes a case of non-nested
unlock ordering.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>