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/ti/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