2 Commits

Author	SHA1	Message	Date
Jett Rink	d52ba1a4d4	backlight: Adding support for active low GPIO signal ... BUG=b:72007261 BRANCH=none TEST=Verified with grunt board (with is active low) Change-Id: I9a58148b8d92065bec982071ed1d97a466197e9a Signed-off-by: Jett Rink <jettrink@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/872233 Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Edward Hill <ecgh@chromium.org>	2018-01-18 05:09:37 -08:00
Randall Spangler	84ba188120	Support backlight control via lid only ... The old backlight_x86 code did (backlight enable) = (lid is open) && (GPIO request from AP) Newer systems will AND those signals in hardware. Support those systems by separating CONFIG_BACKLIGHT_LID and CONFIG_BACKLIGHT_REQ_GPIO, and add tests for the case where the enable signal is dependent only on the lid position. BUG=chrome-os-partner:22960 BRANCH=none TEST=pass unit tests Change-Id: I1909426e49f00a8acd5047fd88c801cba1dacd76 Reviewed-on: https://chromium-review.googlesource.com/170925 Tested-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Bill Richardson <wfrichar@chromium.org> Commit-Queue: Randall Spangler <rspangler@chromium.org>	2013-09-27 23:07:21 +00:00