Duncan Laurie 8bb3689d42 crossystem: Add support for multiple gpiochip entries ...

The current logic for finding a GPIO expects only one gpiochip
entry to exist in /sys/class/gpio.  With Samus there is a second
entry because the codec also exports a set of GPIOs.

To solve this we can use the gpiochip#/label file and compare
against the GPIO controller name described in ACPI.

This adds support for that detection method, as well as a new
GPIO controller entry for INT3437:00 which is used in Broadwell
systems.

BUG=chrome-os-partner:33098
BRANCH=samus
TEST=crossytem wpsw_cur works on samus (TOT with enabled codec)

Change-Id: Ib06f25c7c7e1451a3ab3bb00fd063e23b4d75878
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/224156
Reviewed-by: Bill Richardson <wfrichar@chromium.org>

2014-10-20 08:02:45 +00:00

..

arch

crossystem: Add support for multiple gpiochip entries

2014-10-20 08:02:45 +00:00

include

vboot: cgpt: Refer to partition entries by entries_lba.

2014-08-28 01:17:48 +00:00

lib

crossystem: Change ReadFileInt to take an unsigned int pointer

2014-10-18 01:39:26 +00:00

linktest

cleanup: remove a couple of unused functions and files

2014-09-12 03:39:46 +00:00