(version 2) LinuxPPS new functionalities

This patchset adds several PPS functionalities.

All patches have a specific comment but I prefer say something more:

* Patches 01-02 are just documentation about PPS support.

* Patch 03 adds PPS client support skeleton.

* Patches 04-06 add generic PPS serial support (with specific
  modifications requested by Alan Cox).

* Patches 07-08 add PPS serial support for specific hardware.

Changelog:

V2 -> V1

* Old patches 01-02 removed due related to userland code and then
  managed elsewhere.

* char: n_tty.c: documentation in kerneldoc form added.

* pps: pps-ldisc: avoid using global functions over in n_tty.c

Ciao,

Rodolfo

--

 b/Documentation/serial/tty.txt    |    4 
 b/drivers/char/n_tty.c            |   17 ++++
 b/drivers/pps/Kconfig             |    2 
 b/drivers/pps/Makefile            |    1 
 b/drivers/pps/clients/Kconfig     |   18 ++++
 b/drivers/pps/clients/Makefile    |    9 ++
 b/drivers/pps/clients/ktimer.c    |  123 ++++++++++++++++++++++++++++++
 b/drivers/pps/clients/pps-ldisc.c |  154 ++++++++++++++++++++++++++++++++++++++
 b/drivers/serial/8250.c           |   16 +++
 b/drivers/serial/amba-pl010.c     |   15 +++
 b/include/linux/serial_core.h     |   11 ++
 b/include/linux/tty.h             |    1 
 b/include/linux/tty_ldisc.h       |    8 +
 drivers/pps/clients/Kconfig       |    7 +
 drivers/pps/clients/Makefile      |    1 
 15 files changed, 386 insertions(+), 1 deletion(-)

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