f6ba3065c2
On SetPowerMode() with retain pipes, DRM driver triggers the kick off that enables MDP to read the previously queued buffer, Since the fence created during SetPowerMode() is not merged with the previously queued buffer, it may result in tearing. Hence get the release fence from driver on SetPowerMode and propagate it to hwcomposer to merge it with the previous release fence of all layer buffers to avoid tearing. Change-Id: I81c078a1b05dd3fb34f10b9b70e25cfbcfabd117 CRs-Fixed: 2184515