Mulin Chao 96b0743e1f power: Add virtual-wire power signals support for skylake.
Add virtual wire power signals support for skylake. By adding
CONFIG_VW_SIGNALS definition in board level driver, we can save three
GPIOs (SLP_S3/SLP_S4/CLK_RUN) on skylake platform.

Modified sources:
1. common.c: Add support for VW power signals.
2. skylake.c: Add upper func to get system sleep state through GPIOs or VWs.

BRANCH=none
BUG=none
TEST=make buildall; test boot up and shut down on eSPI POC of wheatley.

Change-Id: I0eae363dad8cec011eb32929a40701f19fde7e1a
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
Reviewed-on: https://chromium-review.googlesource.com/366711
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2016-08-13 01:03:48 -07:00
2012-05-11 09:11:52 -07:00
2016-07-11 21:27:46 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

For an overview of the Embedded Controller firmware, refer to

http://www.chromium.org/chromium-os/2014-firmware-summit

For instructions on building from source, refer to

http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly
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