                              OMAP4 ISS Driver
                              ================

Introduction
------------

The OMAP44XX family of chips contains the Imaging SubSystem (a.k.a. ISS),
Which contains several components that can be categorized in 3 big groups:

- Interfaces (2 Interfaces: CSI2-A & CSI2-B/CCP2)
- ISP (Image Signal Processor)
- SIMCOP (Still Image Coprocessor)

For more information, please look in [1] for latest version of:
	"OMAP4430 Multimedia Device Silicon Revision 2.x"

As of Revision L, the ISS is described in detail in section 8.

This driver is supporting _only_ the CSI2-A interface for now.

It makes use of the Media Controller framework [2], and inherited most of the
code from OMAP3 ISP driver (found under drivers/media/video/omap3isp/*), except
that it doesn't need an IOMMU now for ISS buffers memory mapping.

Supports usage of MMAP buffers only (for now).

IMPORTANT: It is recommended to have this patchset:
  Contiguous Memory Allocator (v15) [3].

Tested platforms
----------------

- OMAP4430SDP, w/ ES2.1 GP & SEVM4430-CAM-V1-0 (Contains IMX060 & OV5640, in
  which only the last one is supported, outputting YUV422 frames).

- PandaBoard, Rev. A2, w/ OMAP4430 ES2.1 GP & OV adapter board, tested with
  following sensors:
  * OV5640
  * OV5650

- Tested on mainline kernel:

	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=summary

  Tag: v3.0 (commit 02f8c6aee8df3cdc935e9bdd4f2d020306035dbe)

File list
---------
drivers/media/video/omap4iss/

References
----------

[1] http://focus.ti.com/general/docs/wtbu/wtbudocumentcenter.tsp?navigationId=12037&templateId=6123#62
[2] http://lwn.net/Articles/420485/
[3] http://lwn.net/Articles/455801/
--
Author: Sergio Aguirre <saaguirre@ti.com>
Copyright (C) 2011, Texas Instruments