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History

Thierry Reding 47e7b05001 staging/nvec: Do not pass resource to mfd_add_devices() The mfd_add_devices() function takes a struct resource * as fifth argument, but the nvec driver passes in a void __iomem *. The driver gets away with it because none of the subdevices ever directly access the registers. Since subdevices never need to access the registers we can simply pass NULL instead. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-07-30 17:18:47 -07:00
..
Kconfig	drivers/staging/nvec/Kconfig: remove trailing whitespace	2013-10-30 09:24:40 -07:00
Makefile
nvec_kbd.c	staging: nvec: Convert to use devm_input_allocate	2013-05-16 16:04:31 -07:00
nvec_paz00.c	staging: nvec: insert blank lines after declarations	2014-07-09 12:14:06 -07:00
nvec_power.c	staging: nvec: insert blank lines after declarations	2014-07-09 12:14:06 -07:00
nvec_ps2.c	staging: nvec: insert blank lines after declarations	2014-07-09 12:14:06 -07:00
nvec-keytable.h
nvec.c	staging/nvec: Do not pass resource to mfd_add_devices()	2014-07-30 17:18:47 -07:00
nvec.h	staging: nvec: use reset framework	2013-12-11 16:44:10 -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