1.. SPDX-License-Identifier: GPL-2.0
2
3OMAP4 ISS Driver
4================
5
6Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
7
8Copyright (C) 2012, Texas Instruments
9
10Introduction
11------------
12
13The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS),
14Which contains several components that can be categorized in 3 big groups:
15
16- Interfaces (2 Interfaces: CSI2-A & CSI2-B/CCP2)
17- ISP (Image Signal Processor)
18- SIMCOP (Still Image Coprocessor)
19
20For more information, please look in [#f1]_ for latest version of:
21"OMAP4430 Multimedia Device Silicon Revision 2.x"
22
23As of Revision AB, the ISS is described in detail in section 8.
24
25This driver is supporting **only** the CSI2-A/B interfaces for now.
26
27It makes use of the Media Controller framework [#f2]_, and inherited most of the
28code from OMAP3 ISP driver (found under drivers/media/platform/omap3isp/\*),
29except that it doesn't need an IOMMU now for ISS buffers memory mapping.
30
31Supports usage of MMAP buffers only (for now).
32
33Tested platforms
34----------------
35
36- OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 (Contains IMX060 & OV5640, in
37  which only the last one is supported, outputting YUV422 frames).
38
39- TI Blaze MDP, w/ OMAP4430 ES2.2 EMU (Contains 1 IMX060 & 2 OV5650 sensors, in
40  which only the OV5650 are supported, outputting RAW10 frames).
41
42- PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & OV adapter board, tested with
43  following sensors:
44  * OV5640
45  * OV5650
46
47- Tested on mainline kernel:
48
49	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=summary
50
51  Tag: v3.3 (commit c16fa4f2ad19908a47c63d8fa436a1178438c7e7)
52
53File list
54---------
55drivers/staging/media/omap4iss/
56include/linux/platform_data/media/omap4iss.h
57
58References
59----------
60
61.. [#f1] http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?navigationId=12037&templateId=6123#62
62.. [#f2] http://lwn.net/Articles/420485/
63