linux

History

Marc Dietrich ca250b6017 staging: nvec: re-enable the clock on resume On resume the slave controller is reinitialized. The tegra i2c master controller disables the clock at the end of the initialiation, propably to save some power, and enables it again on each transfer. We don't do this yet and also forgot to enable the clock on resume. Fix this copy-paste error by not disabling the clock after initialization. This didn't striked us yet because suspend/resume hasn't landed in mainline yet, but will soon. Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-07-29 11:29:37 -07:00
..
Kconfig	staging: nvec: allow modular build	2013-04-23 10:34:20 -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
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	staging: nvec: re-enable the clock on resume	2013-07-29 11:29:37 -07:00
nvec.h	staging: nvec: remove instantiating via platform device	2013-06-24 15:59:03 -07:00
README
TODO

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