Commits
Liu Ying committed b48b0973195
ENGR00264855 backlight: Support backlight shared by multiple fbs One backlight device may shared by multiple framebuffers. We don't hope blanking one of the framebuffers may turn the backlight off for all the other framebuffers, since they are likely active to show display content. This patch adds logic to record each framebuffer's backlight usage to determine the backlight device use count and whether the backlight should be turned on or off. Signed-off-by: Liu Ying <Ying.Liu@freescale.com> (cherry picked from commit 37cbf741e4dff1f757f3ade6bb861d9a2af70693)