linux.git/drivers/serial, branch v2.6.29-rc2

serial: Add 16850 uart type support to OF uart driver

2009-01-16T05:15:17+00:00

This patch adds support for "ns16850" as supported value
of the compatible node in flat device tree uart descriptions.

This is needed for example when you have a XR16C2850 uart
connected to a PPC405's external bus controller.

Signed-off-by: Matthias Fuchs 
Signed-off-by: Benjamin Herrenschmidt

atmel_serial: fix flow control bug

2009-01-16T00:39:35+00:00

Fix the following problem, related to hardware flow control (CTS/RTS):
Transmitting while CTS line is asserted in DMA mode, due to not checking
for tx-stopped condition.

We found these problems while testing the UARTs with hardware
flow-control.

Signed-off-by: Haavard Skinnemoen 
Cc: "Andrew Victor" 
Cc: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

When a break signal is detected, the next character should be ignored.

2009-01-15T20:48:36+00:00

This was not implemented correctly for the pnx8xxx_uart driver.

[From further discussion:
Correct, you can look to it as two separate bugs:
a) the next character is not ignored while it should;
b) the status bits 31-8 are copied to the 'ch' variable while they shouldn't.

Both bugs prevent correct break signal handling (and therefore correct
behaviour of the magic SysRq key). Bug b didn't cause too much trouble
earlier because in most situations the status bits are all zero; for
this case they unfortunately aren't.
]

Signed-off-by: Mischa Jonker 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

serial: Add SupraExpress 336i PnP Voice Modem

2009-01-15T20:48:36+00:00

Add SupraExpress 336i PnP Voice Modem

Tested and working with the following device: (output from lspnp -v)
01:01.00 SUP1381 (unknown)
    state = active
	io 0x2f8-0x2ff
	irq 3

Signed-off-by: Daniel Gagnon 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

8250_pci: add support for netmos 9835 IBM devices

2009-01-15T20:48:35+00:00

Most of netmos 9835 hardware is handled by parport-serial.  IBM introduces
a device which doesn't have any parallel ports and have screwed subdevice
PCI id (not corresponding to port numbers).

Handle this device (9710:9835 1014:0299) properly.

Signed-off-by: Jiri Slaby 
Signed-off-by: Andrew Morton 
Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

fix early_serial_setup() regression

2009-01-13T22:03:43+00:00

Commit b430428a188e8a434325e251d0704af4b88b4711 ("8250: Don't clobber
spinlocks.") introduced a regression on the parisc architecture, which
broke the handover to the serial port at boottime.

early_serial_setup() was changed to only copy a subset of the uart_port
fields, and sadly the "type" and "line" fields were forgotten and thus
the serial port was not initialized and could not be used for a
handover.  This patch fixes this by copying the missing fields.

As this change to early_serial_setup() doesn't need an initialized
spinlock in the uart_port struct any longer, we can drop the spinlock
initialization in the superio driver.

Cc: David Daney 
Cc: Tomaso Paoletti 
Cc: Andrew Morton 
Cc: Alan Cox 
Acked-by: Kyle McMartin 
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Helge Deller 
Signed-off-by: Linus Torvalds

neo: Remove a bogus NULL check

2009-01-13T00:37:00+00:00

Julia Lawall found an un-needed check in the neo driver. Her patch moves
the check to cover the code dereferencing it, however it cannot be NULL
anyway so remove the NULL check instead.

Signed-off-by: Alan Cox 
Signed-off-by: Linus Torvalds

Merge master.kernel.org:/home/rmk/linux-2.6-arm

2009-01-08T22:25:00+00:00

* master.kernel.org:/home/rmk/linux-2.6-arm: (23 commits)
  [ARM] fix pxa930_trkball build errors
  [ARM] fix netx
  [ARM] fix pnx4008
  [ARM] fix pxa
  [ARM] remove missed CLPS7500 defconfig
  [ARM] clps711x: fix warning in edb7211-mm.c
  [ARM] clps711x: fix warning in fortunet
  [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c
  [ARM] Fix realview build
  [ARM] 5357/1: Kirkwood: add missing ge01 tclk initialization
  [ARM] 5358/1: AT2440EVB: Use new include path of mci.h
  [ARM] 5361/1: mv78xx0: fix compilation error
  [ARM] 5360/1: Orion: fix compilation error
  [ARM] 5359/1: Kirkwood: fix compilation error
  [ARM] S3C64XX: Fix EINT group macro definition
  [ARM] Ensure CONFIG_SERIAL_SAMSUNG_UARTS is always set.
  [ARM] S3C24XX: Add gpio_to_irq implementation
  [ARM] S3C24XX: Add gpio_to_irq() facility
  [ARM] footbridge: dc21285.c warning fixes
  [ARM] footbridge: add isa_init_irq() to common header
  ...

[ARM] Ensure CONFIG_SERIAL_SAMSUNG_UARTS is always set.

2009-01-08T16:24:14+00:00

Always set CONFIG_SERIAL_SAMSUNG_UARTS when building any
of the S3C platforms as even if the driver is not selected
there it is still the facility for the machine files to
register configuration data for the possibility of the
driver being built.

Signed-off-by: Ben Dooks

serial: Add driver for the Cell Network Processor serial port NWP device

2009-01-08T05:25:18+00:00

Add support for the nwp serial device which is connected to a DCR bus. It
uses the of_serial device driver to determine necessary properties from
the device tree.  The supported device is added as serial port number 85.

NWP stands for network processor and it is part of the QPACE - Quantum
Chromodynamics Parallel Computing on the Cell Broadband Engine project.
The implementation is a lightweight uart implementation with the focus
to consume as little resources as possible and it is connected to a
DCR bus.

Signed-off-by: Benjamin Krill 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Benjamin Herrenschmidt