tree d1ef293a6d2fe26ec0b56c442f1d0e518786fede
parent 72de9177fe380bda3bb11eea1aa08a243a55d154
author Cindy Liu <hcindyl@google.com> 1573791139 -0800
committer Cindy Liu <hcindyl@google.com> 1573848556 -0800

Update camera mode switch mechanism

During mode change (resolution, framerate), as long as there's v_blank,
h_blank, and system clk update, the exposure time and gain would need
to be recomputed. The original conditional check was too simple and
incorrect. Since the call only happens at v4l VIDIOC_S_PARM ioctl, we
should be okay of not using the direct mode change at all.

In addition, the AE register need to be turned back on after the
exposure update. This was updated in upstream NxP codebase for a later
ov5647 driver, but never fixed in ov5640 version.

Bug: 144574941
Test: Columbia and Enterprise v4l with various resolutions and changing sequences.

Change-Id: Ic631472c872f550d75868e0867b1a9cbe6d3b698