commit 391aed43018a2d9ca3f41c01dc0c1a1e216dd636
author Peter Nordström <pnordstrom@google.com> Tue Jan 15 17:09:36 2019 -0800
committer Alex Van Damme <atv@google.com> Wed Sep 09 12:15:05 2020 -0700
tree 566a209040ded1b75286eab9706937226f0edf6e
parent 1d78a765f5b49b9339f3593871556ac20ced2541

Change auto-focus related behavior

OV5645 supports three different modes for its AF functionality.

 0. Released AF. No AF functionality is active.
 1. One-shot focus. Camera analyzes images and locks the lens
    at current focus.
 2. Continous mode: Camera continously analyzes image and
    makes stepwise focal adjustments.

This change sets the default mode for a video stream to continous
mode, and allows for user setting of all modes via the ov5645_af
sysfs node by writing 0, 1 or 2 to the node respectively.

Change-Id: Ia9e3f3088d04c16de8e908e799420ed021480a4f