linux.git/drivers/tty/serial/pch_uart.c, branch v3.5

Merge 3.4-rc4 into tty-next

2012-04-23T16:39:23+00:00

This resolves the merge problem with:
	drivers/tty/serial/pch_uart.c

Signed-off-by: Greg Kroah-Hartman

Merge 3.4-rc3 into tty-next

2012-04-18T22:57:31+00:00

This allows us to pick up some changes needed for other serial patches.

Signed-off-by: Greg Kroah-Hartman

pch_uart: Fix dma channel unallocated issue

2012-04-18T22:19:50+00:00

This driver anticipates pch_uart_verify_port() is not called
during installation.
However, actually pch_uart_verify_port() is called during
installation.
As a result, memory access violation occurs like below.

0. initial value: use_dma=0
1. starup()
    - dma channel is not allocated because use_dma=0
2. pch_uart_verify_port()
    - Set use_dma=1
3. UART processing acts DMA mode because use_dma=1
     - memory access violation occurs!

This patch fixes the issue.

Solution:
Whenever pch_uart_verify_port() is called and then
dma channel is not allocated, the channel should be allocated.

Signed-off-by: Tomoya MORINAGA 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2012-04-12T22:36:33+00:00

Pull tty and serial fixes from Greg KH:
 "Here are some tty and serial fixes for 3.4-rc2.

  Most important here is the pl011 fix, which has been reported by about
  100 different people, which means more people use it than I expected
  :)

  There are also some 8250 driver reverts due to some problems reported
  by them.  And other minor fixes as well.

  Signed-off-by: Greg Kroah-Hartman "

* tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  pch_uart: Add Kontron COMe-mTT10 uart clock quirk
  pch_uart: Fix MSI setting issue
  serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port
  Revert "serial/8250_pci: setup-quirk workaround for the kt serial controller"
  Revert "serial/8250_pci: init-quirk msi support for kt serial controller"
  tty/serial/omap: console can only be built-in
  serial: samsung: fix omission initialize ulcon in reset port fn()
  printk(): add KERN_CONT where needed in hpet and vt code
  tty/serial: atmel_serial: fix RS485 half-duplex problem
  tty: serial: altera_uart: Check for NULL platform_data in probe.
  isdn/gigaset: use gig_dbg() for debugging output
  omap-serial: Fix the error handling in the omap_serial probe
  serial: PL011: move interrupt clearing

pch_uart: Fix duplicate memory release issue

2012-04-09T19:08:42+00:00

Add initialize variable to prevent duplicate free memory.

Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman

pch_uart: Fix return value issue

2012-04-09T19:08:42+00:00

Currently, occurring line status interrupt,
returned value is not set in interrupt handler function.
As a result, 0 can be returned.

This patch adds setting returned value.

Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman

pch_uart: delete unused data structure

2012-04-09T19:08:42+00:00

Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman

pch_uart: Support modem status interrupt

2012-04-09T19:08:42+00:00

Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman

pch_uart: change type to %d to %02x

2012-04-09T19:08:41+00:00

%02x format is easier to understand better than %d.

Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman

pch_uart: change type to u8

2012-04-09T19:08:41+00:00

Target uart register access size is 8bit.
However, 32bit is used at 2 points.

This patch modifies type "unsigned int" to "unsigned char".

Signed-off-by: Tomoya MORINAGA 
Signed-off-by: Greg Kroah-Hartman