linux.git/drivers/tty/serial/max3100.c, branch v3.9

Merge tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2013-02-21T21:41:04+00:00

Pull tty/serial patches from Greg Kroah-Hartman:
 "Here's the big tty/serial driver patches for 3.9-rc1.

  More tty port rework and fixes from Jiri here, as well as lots of
  individual serial driver updates and fixes.

  All of these have been in the linux-next tree for a while."

* tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
  tty: mxser: improve error handling in mxser_probe() and mxser_module_init()
  serial: imx: fix uninitialized variable warning
  serial: tegra: assume CONFIG_OF
  TTY: do not update atime/mtime on read/write
  lguest: select CONFIG_TTY to build properly.
  ARM defconfigs: add missing inclusions of linux/platform_device.h
  fb/exynos: include platform_device.h
  ARM: sa1100/assabet: include platform_device.h directly
  serial: imx: Fix recursive locking bug
  pps: Fix build breakage from decoupling pps from tty
  tty: Remove ancient hardpps()
  pps: Additional cleanups in uart_handle_dcd_change
  pps: Move timestamp read into PPS code proper
  pps: Don't crash the machine when exiting will do
  pps: Fix a use-after free bug when unregistering a source.
  pps: Use pps_lookup_dev to reduce ldisc coupling
  pps: Add pps_lookup_dev() function
  tty: serial: uartlite: Support uartlite on big and little endian systems
  tty: serial: uartlite: Fix sparse and checkpatch warnings
  serial/arc-uart: Miscll DT related updates (Grant's review comments)
  ...

Fix up trivial conflicts, mostly just due to the TTY config option
clashing with the EXPERIMENTAL removal.

TTY: switch tty_flip_buffer_push

2013-01-16T06:30:15+00:00

Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.

Now, the one where most of tty_port_tty_get gets removed:
tty_flip_buffer_push.

IOW we also closed all the races in drivers not using tty_port_tty_get
at all yet.

Also we move tty_flip_buffer_push declaration from include/linux/tty.h
to include/linux/tty_flip.h to all others while we are changing it
anyway.

Signed-off-by: Jiri Slaby 
Signed-off-by: Greg Kroah-Hartman

TTY: move low_latency to tty_port

2013-01-16T06:23:16+00:00

One point is to have less places where we actually need tty pointer.
The other is that low_latency is bound to buffer processing and
buffers are now in tty_port. So it makes sense to move low_latency to
tty_port too.

Signed-off-by: Jiri Slaby 
Signed-off-by: Greg Kroah-Hartman

tty/max3100: don't use [delayed_]work_pending()

2012-12-28T21:40:16+00:00

There's no need to test whether a (delayed) work item in pending
before queueing, flushing or cancelling it.  Most uses are unnecessary
and quite a few of them are buggy.

Remove unnecessary pending tests from max3100.  Only compile tested.

Signed-off-by: Tejun Heo 
Acked-by: Greg Kroah-Hartman 
Cc: Jiri Slaby

tty: remove use of __devexit

2012-11-21T23:27:46+00:00

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton 
Cc: Jiri Slaby 
Cc: Alan Cox 
Acked-by: Tobias Klauser 
Cc: Lucas Tavares 
Cc: Daniel Walker 
Cc: Bryan Huntsman 
Cc: "David S. Miller" 
Cc: Peter Korsgaard 
Cc: Tony Prisk 
Acked-by: David Brown 
Signed-off-by: Greg Kroah-Hartman

tty: remove use of __devinit

2012-11-21T23:22:52+00:00

CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton 
Cc: Jiri Slaby 
Cc: Alan Cox 
Cc: Lucas Tavares 
Cc: "David S. Miller" 
Cc: Peter Korsgaard 
Cc: Tony Prisk 
Acked-by: Tobias Klauser 
Acked-by: Nicolas Ferre 
Signed-off-by: Greg Kroah-Hartman

tty: serial: remove use of __devexit_p

2012-11-21T23:19:52+00:00

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton 
Cc: Alan Cox 
Cc: Lucas Tavares 
Cc: "David S. Miller" 
Cc: Peter Korsgaard 
Cc: Tony Prisk 
Acked-by: Tobias Klauser 
Acked-by: Nicolas Ferre 
Signed-off-by: Greg Kroah-Hartman

tty: serial: max3100: Fix error case

2012-09-17T11:45:29+00:00

We don't want to free a random address if the entry is wrong, cover
this and WARN if it ever happens.

Signed-off-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

tty: max3100: use module_spi_driver

2012-09-05T19:33:39+00:00

the driver's module init and exit functions can be replaced
with module_spi_driver as they do
only spi_register_driver and spi_unregister_driver in module's init and exit
paths.

Signed-off-by: Devendra Naga 
Signed-off-by: Greg Kroah-Hartman

TTY: Remove redundant spi driver bus initialization

2011-11-27T04:19:21+00:00

In ancient times it was necessary to manually initialize the bus field of an
spi_driver to spi_bus_type. These days this is done in spi_driver_register(),
so we can drop the manual assignment.

The patch was generated using the following coccinelle semantic patch:
// 
@@
identifier _driver;
@@
struct spi_driver _driver = {
	.driver = {
-		.bus = &spi_bus_type,
	},
};
// 

Signed-off-by: Lars-Peter Clausen 
Cc: Alan Cox 
Signed-off-by: Greg Kroah-Hartman