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28397dc9a6
linux/drivers/staging/nvec
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Geert Uytterhoeven 28397dc9a6 mfd: staging: Constify struct mfd_cell where possible 
As of commit 03e361b25e ("mfd: Stop setting
refcounting pointers in original mfd_cell arrays"), the "cell" parameter of
mfd_add_devices() is "const" again. Hence make all cell data passed to
mfd_add_devices() const where possible.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-19 16:08:33 -08:00
..
Kconfig drivers/staging/nvec/Kconfig: remove trailing whitespace 2013-10-30 09:24:40 -07:00
Makefile staging: nvec: rename led driver to board specific paz00 driver 2012-06-25 10:55:38 -07:00
nvec_kbd.c staging: nvec: Convert to use devm_input_allocate 2013-05-16 16:04:31 -07:00
nvec_paz00.c staging: nvec: remove use of __devexit 2012-11-21 14:23:51 -08:00
nvec_power.c staging: nvec: cleanup childs on remove 2013-05-14 07:07:50 -04:00
nvec_ps2.c staging: nvec: cleanup childs on remove 2013-05-14 07:07:50 -04:00
nvec-keytable.h
nvec.c mfd: staging: Constify struct mfd_cell where possible 2013-11-19 16:08:33 -08:00
nvec.h staging: nvec: remove instantiating via platform device 2013-06-24 15:59:03 -07:00
README
TODO staging: nvec: remove use of clk_get_sys 2013-01-28 11:19:33 -07:00

README 

NVEC: An NVidia compliant Embedded Controller Protocol Implemenation

This is an implementation of the NVEC protocol used to communicate with an
embedded controller (EC) via I2C bus. The EC is an I2C master while the host
processor is the I2C slave. Requests from the host processor to the EC are
started by triggering a gpio line.

There is no written documentation of the protocol available to the public,
but the source code[1] of the published nvec reference drivers can be a guide.
This driver is currently only used by the AC100 project[2], but it is likely,
that other Tegra boards (not yet mainlined, if ever) also use it.

[1] e.g. http://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=tree;f=arch/arm/mach-tegra/nvec;hb=android-tegra-2.6.32
[2] http://gitorious.org/ac100, http://launchpad.net/ac100