tree 9f37eed3ca43688d42ed79bcb84e537535b80dba
parent 752b7b20e20d3504549b4059dc233b13a8d41974
author Ken Chang <kenc@nvidia.com> 1423202776 +0800
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> 1423625766 +0000

crossystem: read recovery switch status from chromeos_arm device

The kernel chromeos_arm platform device provides the recovery status
with the consideration of active polarity.
Thus make crossystem to read from chromeos_arm device first. If this
is not available, read directly from gpio pin status.

BUG=chrome-os-partner:36425
BRANCH=none
TEST=ran on kitty,
'crossystem recoverysw_cur' return 0 with recovery switch off
'crossystem recoverysw_cur' return 1 with recovery switch on

Change-Id: Ie20630d7d07aeadf24044cd3ffc495df7cdd8a4a
Signed-off-by: Ken Chang <kenc@nvidia.com>
Reviewed-on: https://chromium-review.googlesource.com/246883
Tested-by: Titan Lee <titanlee@nvidia.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Titan Lee <titanlee@nvidia.com>
(cherry picked from commit c93ddb60aae37fc06f614a1b79e6f3fee25b97c4)
Reviewed-on: https://chromium-review.googlesource.com/248372
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>