From 949bd4081ffe953af98b6ac7ebe0a8d59996fce9 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Thu, 5 Mar 2015 17:33:17 -0300
Subject: [PATCH] [media] marvell-ccic: use vb2 helpers and core locking

Use the V4L2 core locking system instead of rolling your own. Switch to
the vb2 fop and ioctl helpers to get rid of a lot of code. This also made
it easy to add VB2_READ to the DMA modes, since you get read() for free
with vb2 and these helpers.

Finally remove the users field: this information is also available from
the core framework, no need to keep track of it in the driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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