i2c/ww_ring: define display pattern programs

Add compiled lp55231 code snippets to allow display certain patterns
when booting the device with the recovery button pressed.

As soon as the press is detected, the low intensify solid white
pattern is enabled. Holding recovery button long enough causes the
device transition between the wipeout requested and recovery requested
states, with the appropriate changes in the displayed pattern.

The patch also includes the source code for the LED controller as well
as instructions on how to compile and modify the code to result in
different colors, intensities, blink periods and duty cycles.

BRANCH=storm
BUG=chrome-os-partner:36059
TEST=reboot an SP5 device with the LED ring attached, keep the
     recovery button pressed, observe the changes in the LED display
     pattern while the device progresses through the boot sequence.

Change-Id: Ic7d45fc7c313b6d21119d4ae6adaeb4f46f7d181
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 0fd6a5c0067d705197816629f41640a931d2f7cd
Original-Change-Id: Ib5cc5188c2eeedbba128101bf4092a0b9a74e155
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/260670
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9870
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions