commit 56a22e8f4e7086bbb32daa978643e38404ec264d
author himta ram <hram@codeaurora.org> Tue Jul 07 15:33:36 2020 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Tue Jul 07 18:31:33 2020 -0700
tree ce5c1fefe5db554872f7ab0555935b261661da40
parent 008355f5bdeb12663c204765151d74faa230ef6e

radio: iris: implement file read for iris driver

FM app is using the VIDIOC DQBUF ioctl to read the
event from iris driver. VIDIOC DQBUF ioctl needs
the v4l2buf type as V4L2_BUF_TYPE_PRIVATE and it
is Deprecated and not recommend to use in latest
kernel version.Also upstream kernel code doesn't
have the VIDIOC DQBUF as a valid ioctl.
Implement file read functionality to read the events
from iris driver.

CRs-Fixed: 2726060
Change-Id: I48ba91609a38ccccd53961b89252ef810a020deb
Signed-off-by: himta ram <hram@codeaurora.org>