the following patch was just integrated into master: commit c3b0e29b4396f1fbcc213bf2319c8ffd624bae1a Author: David Hendricks dhendrix@chromium.org Date: Wed Apr 22 15:05:18 2015 -0700
veyron_danger: Turn on backlight enable before VCC_LCD
On current Danger boards, VCC_LCD is gated by BL_EN. Thus we need to enable BL_EN in order to power on the display so that we can read the EDID and set things up.
Later board revisions may change this ordering, but for now it doesn't seem to be causing a significant issues (no noticable "snow" or other corruption using Pepto display).
BUG=none BRANCH=none TEST=booted on Danger, saw dev mode screen come up
Change-Id: I70aab8c1f6da2d0fce310d59073026eef0f67821 Signed-off-by: Patrick Georgi pgeorgi@chromium.org Original-Commit-Id: 1a918824e747600a2f3a88602320f4f563ce17b7 Original-Signed-off-by: David Hendricks dhendrix@chromium.org Original-Change-Id: Iaf17cc4682bd3c46f62cba789e3ecf8d5a474362 Original-Reviewed-on: https://chromium-review.googlesource.com/266913 Original-Reviewed-by: Julius Werner jwerner@chromium.org Reviewed-on: http://review.coreboot.org/10089 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones marc.jones@se-eng.com
See http://review.coreboot.org/10089 for details.
-gerrit