[media] rename drivers/media/video as .../platform

The remaining drivers are mostly platform drivers. Name the
dir to reflect it.

It makes sense to latter break it into a few other dirs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 2079 deletions

diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c
deleted file mode 100644
index 843b138faabe..000000000000
--- a/drivers/media/video/davinci/vpfe_capture.c
+++ /dev/null
@@ -1,2079 +0,0 @@
-/*
- * Copyright (C) 2008-2009 Texas Instruments Inc
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
- * Driver name : VPFE Capture driver
- *    VPFE Capture driver allows applications to capture and stream video
- *    frames on DaVinci SoCs (DM6446, DM355 etc) from a YUV source such as
- *    TVP5146 or  Raw Bayer RGB image data from an image sensor
- *    such as Microns' MT9T001, MT9T031 etc.
- *
- *    These SoCs have, in common, a Video Processing Subsystem (VPSS) that
- *    consists of a Video Processing Front End (VPFE) for capturing
- *    video/raw image data and Video Processing Back End (VPBE) for displaying
- *    YUV data through an in-built analog encoder or Digital LCD port. This
- *    driver is for capture through VPFE. A typical EVM using these SoCs have
- *    following high level configuration.
- *
- *
- *    decoder(TVP5146/		YUV/
- * 	     MT9T001)   -->  Raw Bayer RGB ---> MUX -> VPFE (CCDC/ISIF)
- *    				data input              |      |
- *							V      |
- *						      SDRAM    |
- *							       V
- *							   Image Processor
- *							       |
- *							       V
- *							     SDRAM
- *    The data flow happens from a decoder connected to the VPFE over a
- *    YUV embedded (BT.656/BT.1120) or separate sync or raw bayer rgb interface
- *    and to the input of VPFE through an optional MUX (if more inputs are
- *    to be interfaced on the EVM). The input data is first passed through
- *    CCDC (CCD Controller, a.k.a Image Sensor Interface, ISIF). The CCDC
- *    does very little or no processing on YUV data and does pre-process Raw
- *    Bayer RGB data through modules such as Defect Pixel Correction (DFC)
- *    Color Space Conversion (CSC), data gain/offset etc. After this, data
- *    can be written to SDRAM or can be connected to the image processing
- *    block such as IPIPE (on DM355 only).
- *
- *    Features supported
- *  		- MMAP IO
- *		- Capture using TVP5146 over BT.656
- *		- support for interfacing decoders using sub device model
- *		- Work with DM355 or DM6446 CCDC to do Raw Bayer RGB/YUV
- *		  data capture to SDRAM.
- *    TODO list
- *		- Support multiple REQBUF after open
- *		- Support for de-allocating buffers through REQBUF
- *		- Support for Raw Bayer RGB capture
- *		- Support for chaining Image Processor
- *		- Support for static allocation of buffers
- *		- Support for USERPTR IO
- *		- Support for STREAMON before QBUF
- *		- Support for control ioctls
- */
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <media/v4l2-common.h>
-#include <linux/io.h>
-#include <media/davinci/vpfe_capture.h>
-#include "ccdc_hw_device.h"
-
-static int debug;
-static u32 numbuffers = 3;
-static u32 bufsize = (720 * 576 * 2);
-
-module_param(numbuffers, uint, S_IRUGO);
-module_param(bufsize, uint, S_IRUGO);
-module_param(debug, int, 0644);
-
-MODULE_PARM_DESC(numbuffers, "buffer count (default:3)");
-MODULE_PARM_DESC(bufsize, "buffer size in bytes (default:720 x 576 x 2)");
-MODULE_PARM_DESC(debug, "Debug level 0-1");
-
-MODULE_DESCRIPTION("VPFE Video for Linux Capture Driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Texas Instruments");
-
-/* standard information */
-struct vpfe_standard {
-	v4l2_std_id std_id;
-	unsigned int width;
-	unsigned int height;
-	struct v4l2_fract pixelaspect;
-	/* 0 - progressive, 1 - interlaced */
-	int frame_format;
-};
-
-/* ccdc configuration */
-struct ccdc_config {
-	/* This make sure vpfe is probed and ready to go */
-	int vpfe_probed;
-	/* name of ccdc device */
-	char name[32];
-};
-
-/* data structures */
-static struct vpfe_config_params config_params = {
-	.min_numbuffers = 3,
-	.numbuffers = 3,
-	.min_bufsize = 720 * 480 * 2,
-	.device_bufsize = 720 * 576 * 2,
-};
-
-/* ccdc device registered */
-static struct ccdc_hw_device *ccdc_dev;
-/* lock for accessing ccdc information */
-static DEFINE_MUTEX(ccdc_lock);
-/* ccdc configuration */
-static struct ccdc_config *ccdc_cfg;
-
-const struct vpfe_standard vpfe_standards[] = {
-	{V4L2_STD_525_60, 720, 480, {11, 10}, 1},
-	{V4L2_STD_625_50, 720, 576, {54, 59}, 1},
-};
-
-/* Used when raw Bayer image from ccdc is directly captured to SDRAM */
-static const struct vpfe_pixel_format vpfe_pix_fmts[] = {
-	{
-		.fmtdesc = {
-			.index = 0,
-			.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
-			.description = "Bayer GrRBGb 8bit A-Law compr.",
-			.pixelformat = V4L2_PIX_FMT_SBGGR8,
-		},
-		.bpp = 1,
-	},
-	{
-		.fmtdesc = {
-			.index = 1,
-			.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
-			.description = "Bayer GrRBGb - 16bit",
-			.pixelformat = V4L2_PIX_FMT_SBGGR16,
-		},
-		.bpp = 2,
-	},
-	{
-		.fmtdesc = {
-			.index = 2,
-			.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
-			.description = "Bayer GrRBGb 8bit DPCM compr.",
-			.pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8,
-		},
-		.bpp = 1,
-	},
-	{
-		.fmtdesc = {
-			.index = 3,
-			.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
-			.description = "YCbCr 4:2:2 Interleaved UYVY",
-			.pixelformat = V4L2_PIX_FMT_UYVY,
-		},
-		.bpp = 2,
-	},
-	{
-		.fmtdesc = {
-			.index = 4,
-			.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
-			.description = "YCbCr 4:2:2 Interleaved YUYV",
-			.pixelformat = V4L2_PIX_FMT_YUYV,
-		},
-		.bpp = 2,
-	},
-	{
-		.fmtdesc = {
-			.index = 5,
-			.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
-			.description = "Y/CbCr 4:2:0 - Semi planar",
-			.pixelformat = V4L2_PIX_FMT_NV12,
-		},
-		.bpp = 1,
-	},
-};
-
-/*
- * vpfe_lookup_pix_format()
- * lookup an entry in the vpfe pix format table based on pix_format
- */
-static const struct vpfe_pixel_format *vpfe_lookup_pix_format(u32 pix_format)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(vpfe_pix_fmts); i++) {
-		if (pix_format == vpfe_pix_fmts[i].fmtdesc.pixelformat)
-			return &vpfe_pix_fmts[i];
-	}
-	return NULL;
-}
-
-/*
- * vpfe_register_ccdc_device. CCDC module calls this to
- * register with vpfe capture
- */
-int vpfe_register_ccdc_device(struct ccdc_hw_device *dev)
-{
-	int ret = 0;
-	printk(KERN_NOTICE "vpfe_register_ccdc_device: %s\n", dev->name);
-
-	BUG_ON(!dev->hw_ops.open);
-	BUG_ON(!dev->hw_ops.enable);
-	BUG_ON(!dev->hw_ops.set_hw_if_params);
-	BUG_ON(!dev->hw_ops.configure);
-	BUG_ON(!dev->hw_ops.set_buftype);
-	BUG_ON(!dev->hw_ops.get_buftype);
-	BUG_ON(!dev->hw_ops.enum_pix);
-	BUG_ON(!dev->hw_ops.set_frame_format);
-	BUG_ON(!dev->hw_ops.get_frame_format);
-	BUG_ON(!dev->hw_ops.get_pixel_format);
-	BUG_ON(!dev->hw_ops.set_pixel_format);
-	BUG_ON(!dev->hw_ops.set_image_window);
-	BUG_ON(!dev->hw_ops.get_image_window);
-	BUG_ON(!dev->hw_ops.get_line_length);
-	BUG_ON(!dev->hw_ops.getfid);
-
-	mutex_lock(&ccdc_lock);
-	if (NULL == ccdc_cfg) {
-		/*
-		 * TODO. Will this ever happen? if so, we need to fix it.
-		 * Proabably we need to add the request to a linked list and
-		 * walk through it during vpfe probe
-		 */
-		printk(KERN_ERR "vpfe capture not initialized\n");
-		ret = -EFAULT;
-		goto unlock;
-	}
-
-	if (strcmp(dev->name, ccdc_cfg->name)) {
-		/* ignore this ccdc */
-		ret = -EINVAL;
-		goto unlock;
-	}
-
-	if (ccdc_dev) {
-		printk(KERN_ERR "ccdc already registered\n");
-		ret = -EINVAL;
-		goto unlock;
-	}
-
-	ccdc_dev = dev;
-unlock:
-	mutex_unlock(&ccdc_lock);
-	return ret;
-}
-EXPORT_SYMBOL(vpfe_register_ccdc_device);
-
-/*
- * vpfe_unregister_ccdc_device. CCDC module calls this to
- * unregister with vpfe capture
- */
-void vpfe_unregister_ccdc_device(struct ccdc_hw_device *dev)
-{
-	if (NULL == dev) {
-		printk(KERN_ERR "invalid ccdc device ptr\n");
-		return;
-	}
-
-	printk(KERN_NOTICE "vpfe_unregister_ccdc_device, dev->name = %s\n",
-		dev->name);
-
-	if (strcmp(dev->name, ccdc_cfg->name)) {
-		/* ignore this ccdc */
-		return;
-	}
-
-	mutex_lock(&ccdc_lock);
-	ccdc_dev = NULL;
-	mutex_unlock(&ccdc_lock);
-	return;
-}
-EXPORT_SYMBOL(vpfe_unregister_ccdc_device);
-
-/*
- * vpfe_get_ccdc_image_format - Get image parameters based on CCDC settings
- */
-static int vpfe_get_ccdc_image_format(struct vpfe_device *vpfe_dev,
-				 struct v4l2_format *f)
-{
-	struct v4l2_rect image_win;
-	enum ccdc_buftype buf_type;
-	enum ccdc_frmfmt frm_fmt;
-
-	memset(f, 0, sizeof(*f));
-	f->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
-	ccdc_dev->hw_ops.get_image_window(&image_win);
-	f->fmt.pix.width = image_win.width;
-	f->fmt.pix.height = image_win.height;
-	f->fmt.pix.bytesperline = ccdc_dev->hw_ops.get_line_length();
-	f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
-				f->fmt.pix.height;
-	buf_type = ccdc_dev->hw_ops.get_buftype();
-	f->fmt.pix.pixelformat = ccdc_dev->hw_ops.get_pixel_format();
-	frm_fmt = ccdc_dev->hw_ops.get_frame_format();
-	if (frm_fmt == CCDC_FRMFMT_PROGRESSIVE)
-		f->fmt.pix.field = V4L2_FIELD_NONE;
-	else if (frm_fmt == CCDC_FRMFMT_INTERLACED) {
-		if (buf_type == CCDC_BUFTYPE_FLD_INTERLEAVED)
-			f->fmt.pix.field = V4L2_FIELD_INTERLACED;
-		else if (buf_type == CCDC_BUFTYPE_FLD_SEPARATED)
-			f->fmt.pix.field = V4L2_FIELD_SEQ_TB;
-		else {
-			v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf_type\n");
-			return -EINVAL;
-		}
-	} else {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid frm_fmt\n");
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/*
- * vpfe_config_ccdc_image_format()
- * For a pix format, configure ccdc to setup the capture
- */
-static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe_dev)
-{
-	enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED;
-	int ret = 0;
-
-	if (ccdc_dev->hw_ops.set_pixel_format(
-			vpfe_dev->fmt.fmt.pix.pixelformat) < 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			"couldn't set pix format in ccdc\n");
-		return -EINVAL;
-	}
-	/* configure the image window */
-	ccdc_dev->hw_ops.set_image_window(&vpfe_dev->crop);
-
-	switch (vpfe_dev->fmt.fmt.pix.field) {
-	case V4L2_FIELD_INTERLACED:
-		/* do nothing, since it is default */
-		ret = ccdc_dev->hw_ops.set_buftype(
-				CCDC_BUFTYPE_FLD_INTERLEAVED);
-		break;
-	case V4L2_FIELD_NONE:
-		frm_fmt = CCDC_FRMFMT_PROGRESSIVE;
-		/* buffer type only applicable for interlaced scan */
-		break;
-	case V4L2_FIELD_SEQ_TB:
-		ret = ccdc_dev->hw_ops.set_buftype(
-				CCDC_BUFTYPE_FLD_SEPARATED);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	/* set the frame format */
-	if (!ret)
-		ret = ccdc_dev->hw_ops.set_frame_format(frm_fmt);
-	return ret;
-}
-/*
- * vpfe_config_image_format()
- * For a given standard, this functions sets up the default
- * pix format & crop values in the vpfe device and ccdc.  It first
- * starts with defaults based values from the standard table.
- * It then checks if sub device support g_mbus_fmt and then override the
- * values based on that.Sets crop values to match with scan resolution
- * starting at 0,0. It calls vpfe_config_ccdc_image_format() set the
- * values in ccdc
- */
-static int vpfe_config_image_format(struct vpfe_device *vpfe_dev,
-				    const v4l2_std_id *std_id)
-{
-	struct vpfe_subdev_info *sdinfo = vpfe_dev->current_subdev;
-	struct v4l2_mbus_framefmt mbus_fmt;
-	struct v4l2_pix_format *pix = &vpfe_dev->fmt.fmt.pix;
-	int i, ret = 0;
-
-	for (i = 0; i < ARRAY_SIZE(vpfe_standards); i++) {
-		if (vpfe_standards[i].std_id & *std_id) {
-			vpfe_dev->std_info.active_pixels =
-					vpfe_standards[i].width;
-			vpfe_dev->std_info.active_lines =
-					vpfe_standards[i].height;
-			vpfe_dev->std_info.frame_format =
-					vpfe_standards[i].frame_format;
-			vpfe_dev->std_index = i;
-			break;
-		}
-	}
-
-	if (i ==  ARRAY_SIZE(vpfe_standards)) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "standard not supported\n");
-		return -EINVAL;
-	}
-
-	vpfe_dev->crop.top = 0;
-	vpfe_dev->crop.left = 0;
-	vpfe_dev->crop.width = vpfe_dev->std_info.active_pixels;
-	vpfe_dev->crop.height = vpfe_dev->std_info.active_lines;
-	pix->width = vpfe_dev->crop.width;
-	pix->height = vpfe_dev->crop.height;
-
-	/* first field and frame format based on standard frame format */
-	if (vpfe_dev->std_info.frame_format) {
-		pix->field = V4L2_FIELD_INTERLACED;
-		/* assume V4L2_PIX_FMT_UYVY as default */
-		pix->pixelformat = V4L2_PIX_FMT_UYVY;
-		v4l2_fill_mbus_format(&mbus_fmt, pix,
-				V4L2_MBUS_FMT_YUYV10_2X10);
-	} else {
-		pix->field = V4L2_FIELD_NONE;
-		/* assume V4L2_PIX_FMT_SBGGR8 */
-		pix->pixelformat = V4L2_PIX_FMT_SBGGR8;
-		v4l2_fill_mbus_format(&mbus_fmt, pix,
-				V4L2_MBUS_FMT_SBGGR8_1X8);
-	}
-
-	/* if sub device supports g_mbus_fmt, override the defaults */
-	ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev,
-			sdinfo->grp_id, video, g_mbus_fmt, &mbus_fmt);
-
-	if (ret && ret != -ENOIOCTLCMD) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			"error in getting g_mbus_fmt from sub device\n");
-		return ret;
-	}
-	v4l2_fill_pix_format(pix, &mbus_fmt);
-	pix->bytesperline = pix->width * 2;
-	pix->sizeimage = pix->bytesperline * pix->height;
-
-	/* Sets the values in CCDC */
-	ret = vpfe_config_ccdc_image_format(vpfe_dev);
-	if (ret)
-		return ret;
-
-	/* Update the values of sizeimage and bytesperline */
-	if (!ret) {
-		pix->bytesperline = ccdc_dev->hw_ops.get_line_length();
-		pix->sizeimage = pix->bytesperline * pix->height;
-	}
-	return ret;
-}
-
-static int vpfe_initialize_device(struct vpfe_device *vpfe_dev)
-{
-	int ret = 0;
-
-	/* set first input of current subdevice as the current input */
-	vpfe_dev->current_input = 0;
-
-	/* set default standard */
-	vpfe_dev->std_index = 0;
-
-	/* Configure the default format information */
-	ret = vpfe_config_image_format(vpfe_dev,
-				&vpfe_standards[vpfe_dev->std_index].std_id);
-	if (ret)
-		return ret;
-
-	/* now open the ccdc device to initialize it */
-	mutex_lock(&ccdc_lock);
-	if (NULL == ccdc_dev) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "ccdc device not registered\n");
-		ret = -ENODEV;
-		goto unlock;
-	}
-
-	if (!try_module_get(ccdc_dev->owner)) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Couldn't lock ccdc module\n");
-		ret = -ENODEV;
-		goto unlock;
-	}
-	ret = ccdc_dev->hw_ops.open(vpfe_dev->pdev);
-	if (!ret)
-		vpfe_dev->initialized = 1;
-
-	/* Clear all VPFE/CCDC interrupts */
-	if (vpfe_dev->cfg->clr_intr)
-		vpfe_dev->cfg->clr_intr(-1);
-
-unlock:
-	mutex_unlock(&ccdc_lock);
-	return ret;
-}
-
-/*
- * vpfe_open : It creates object of file handle structure and
- * stores it in private_data  member of filepointer
- */
-static int vpfe_open(struct file *file)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_fh *fh;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n");
-
-	if (!vpfe_dev->cfg->num_subdevs) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "No decoder registered\n");
-		return -ENODEV;
-	}
-
-	/* Allocate memory for the file handle object */
-	fh = kmalloc(sizeof(struct vpfe_fh), GFP_KERNEL);
-	if (NULL == fh) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			"unable to allocate memory for file handle object\n");
-		return -ENOMEM;
-	}
-	/* store pointer to fh in private_data member of file */
-	file->private_data = fh;
-	fh->vpfe_dev = vpfe_dev;
-	mutex_lock(&vpfe_dev->lock);
-	/* If decoder is not initialized. initialize it */
-	if (!vpfe_dev->initialized) {
-		if (vpfe_initialize_device(vpfe_dev)) {
-			mutex_unlock(&vpfe_dev->lock);
-			return -ENODEV;
-		}
-	}
-	/* Increment device usrs counter */
-	vpfe_dev->usrs++;
-	/* Set io_allowed member to false */
-	fh->io_allowed = 0;
-	/* Initialize priority of this instance to default priority */
-	fh->prio = V4L2_PRIORITY_UNSET;
-	v4l2_prio_open(&vpfe_dev->prio, &fh->prio);
-	mutex_unlock(&vpfe_dev->lock);
-	return 0;
-}
-
-static void vpfe_schedule_next_buffer(struct vpfe_device *vpfe_dev)
-{
-	unsigned long addr;
-
-	vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next,
-					struct videobuf_buffer, queue);
-	list_del(&vpfe_dev->next_frm->queue);
-	vpfe_dev->next_frm->state = VIDEOBUF_ACTIVE;
-	addr = videobuf_to_dma_contig(vpfe_dev->next_frm);
-
-	ccdc_dev->hw_ops.setfbaddr(addr);
-}
-
-static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev)
-{
-	unsigned long addr;
-
-	addr = videobuf_to_dma_contig(vpfe_dev->cur_frm);
-	addr += vpfe_dev->field_off;
-	ccdc_dev->hw_ops.setfbaddr(addr);
-}
-
-static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev)
-{
-	struct timeval timevalue;
-
-	do_gettimeofday(&timevalue);
-	vpfe_dev->cur_frm->ts = timevalue;
-	vpfe_dev->cur_frm->state = VIDEOBUF_DONE;
-	vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage;
-	wake_up_interruptible(&vpfe_dev->cur_frm->done);
-	vpfe_dev->cur_frm = vpfe_dev->next_frm;
-}
-
-/* ISR for VINT0*/
-static irqreturn_t vpfe_isr(int irq, void *dev_id)
-{
-	struct vpfe_device *vpfe_dev = dev_id;
-	enum v4l2_field field;
-	int fid;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nStarting vpfe_isr...\n");
-	field = vpfe_dev->fmt.fmt.pix.field;
-
-	/* if streaming not started, don't do anything */
-	if (!vpfe_dev->started)
-		goto clear_intr;
-
-	/* only for 6446 this will be applicable */
-	if (NULL != ccdc_dev->hw_ops.reset)
-		ccdc_dev->hw_ops.reset();
-
-	if (field == V4L2_FIELD_NONE) {
-		/* handle progressive frame capture */
-		v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-			"frame format is progressive...\n");
-		if (vpfe_dev->cur_frm != vpfe_dev->next_frm)
-			vpfe_process_buffer_complete(vpfe_dev);
-		goto clear_intr;
-	}
-
-	/* interlaced or TB capture check which field we are in hardware */
-	fid = ccdc_dev->hw_ops.getfid();
-
-	/* switch the software maintained field id */
-	vpfe_dev->field_id ^= 1;
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "field id = %x:%x.\n",
-		fid, vpfe_dev->field_id);
-	if (fid == vpfe_dev->field_id) {
-		/* we are in-sync here,continue */
-		if (fid == 0) {
-			/*
-			 * One frame is just being captured. If the next frame
-			 * is available, release the current frame and move on
-			 */
-			if (vpfe_dev->cur_frm != vpfe_dev->next_frm)
-				vpfe_process_buffer_complete(vpfe_dev);
-			/*
-			 * based on whether the two fields are stored
-			 * interleavely or separately in memory, reconfigure
-			 * the CCDC memory address
-			 */
-			if (field == V4L2_FIELD_SEQ_TB) {
-				vpfe_schedule_bottom_field(vpfe_dev);
-			}
-			goto clear_intr;
-		}
-		/*
-		 * if one field is just being captured configure
-		 * the next frame get the next frame from the empty
-		 * queue if no frame is available hold on to the
-		 * current buffer
-		 */
-		spin_lock(&vpfe_dev->dma_queue_lock);
-		if (!list_empty(&vpfe_dev->dma_queue) &&
-		    vpfe_dev->cur_frm == vpfe_dev->next_frm)
-			vpfe_schedule_next_buffer(vpfe_dev);
-		spin_unlock(&vpfe_dev->dma_queue_lock);
-	} else if (fid == 0) {
-		/*
-		 * out of sync. Recover from any hardware out-of-sync.
-		 * May loose one frame
-		 */
-		vpfe_dev->field_id = fid;
-	}
-clear_intr:
-	if (vpfe_dev->cfg->clr_intr)
-		vpfe_dev->cfg->clr_intr(irq);
-
-	return IRQ_HANDLED;
-}
-
-/* vdint1_isr - isr handler for VINT1 interrupt */
-static irqreturn_t vdint1_isr(int irq, void *dev_id)
-{
-	struct vpfe_device *vpfe_dev = dev_id;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "\nInside vdint1_isr...\n");
-
-	/* if streaming not started, don't do anything */
-	if (!vpfe_dev->started) {
-		if (vpfe_dev->cfg->clr_intr)
-			vpfe_dev->cfg->clr_intr(irq);
-		return IRQ_HANDLED;
-	}
-
-	spin_lock(&vpfe_dev->dma_queue_lock);
-	if ((vpfe_dev->fmt.fmt.pix.field == V4L2_FIELD_NONE) &&
-	    !list_empty(&vpfe_dev->dma_queue) &&
-	    vpfe_dev->cur_frm == vpfe_dev->next_frm)
-		vpfe_schedule_next_buffer(vpfe_dev);
-	spin_unlock(&vpfe_dev->dma_queue_lock);
-
-	if (vpfe_dev->cfg->clr_intr)
-		vpfe_dev->cfg->clr_intr(irq);
-
-	return IRQ_HANDLED;
-}
-
-static void vpfe_detach_irq(struct vpfe_device *vpfe_dev)
-{
-	enum ccdc_frmfmt frame_format;
-
-	frame_format = ccdc_dev->hw_ops.get_frame_format();
-	if (frame_format == CCDC_FRMFMT_PROGRESSIVE)
-		free_irq(vpfe_dev->ccdc_irq1, vpfe_dev);
-}
-
-static int vpfe_attach_irq(struct vpfe_device *vpfe_dev)
-{
-	enum ccdc_frmfmt frame_format;
-
-	frame_format = ccdc_dev->hw_ops.get_frame_format();
-	if (frame_format == CCDC_FRMFMT_PROGRESSIVE) {
-		return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr,
-				    IRQF_DISABLED, "vpfe_capture1",
-				    vpfe_dev);
-	}
-	return 0;
-}
-
-/* vpfe_stop_ccdc_capture: stop streaming in ccdc/isif */
-static void vpfe_stop_ccdc_capture(struct vpfe_device *vpfe_dev)
-{
-	vpfe_dev->started = 0;
-	ccdc_dev->hw_ops.enable(0);
-	if (ccdc_dev->hw_ops.enable_out_to_sdram)
-		ccdc_dev->hw_ops.enable_out_to_sdram(0);
-}
-
-/*
- * vpfe_release : This function deletes buffer queue, frees the
- * buffers and the vpfe file  handle
- */
-static int vpfe_release(struct file *file)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_fh *fh = file->private_data;
-	struct vpfe_subdev_info *sdinfo;
-	int ret;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_release\n");
-
-	/* Get the device lock */
-	mutex_lock(&vpfe_dev->lock);
-	/* if this instance is doing IO */
-	if (fh->io_allowed) {
-		if (vpfe_dev->started) {
-			sdinfo = vpfe_dev->current_subdev;
-			ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev,
-							 sdinfo->grp_id,
-							 video, s_stream, 0);
-			if (ret && (ret != -ENOIOCTLCMD))
-				v4l2_err(&vpfe_dev->v4l2_dev,
-				"stream off failed in subdev\n");
-			vpfe_stop_ccdc_capture(vpfe_dev);
-			vpfe_detach_irq(vpfe_dev);
-			videobuf_streamoff(&vpfe_dev->buffer_queue);
-		}
-		vpfe_dev->io_usrs = 0;
-		vpfe_dev->numbuffers = config_params.numbuffers;
-	}
-
-	/* Decrement device usrs counter */
-	vpfe_dev->usrs--;
-	/* Close the priority */
-	v4l2_prio_close(&vpfe_dev->prio, fh->prio);
-	/* If this is the last file handle */
-	if (!vpfe_dev->usrs) {
-		vpfe_dev->initialized = 0;
-		if (ccdc_dev->hw_ops.close)
-			ccdc_dev->hw_ops.close(vpfe_dev->pdev);
-		module_put(ccdc_dev->owner);
-	}
-	mutex_unlock(&vpfe_dev->lock);
-	file->private_data = NULL;
-	/* Free memory allocated to file handle object */
-	kfree(fh);
-	return 0;
-}
-
-/*
- * vpfe_mmap : It is used to map kernel space buffers
- * into user spaces
- */
-static int vpfe_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	/* Get the device object and file handle object */
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_mmap\n");
-
-	return videobuf_mmap_mapper(&vpfe_dev->buffer_queue, vma);
-}
-
-/*
- * vpfe_poll: It is used for select/poll system call
- */
-static unsigned int vpfe_poll(struct file *file, poll_table *wait)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_poll\n");
-
-	if (vpfe_dev->started)
-		return videobuf_poll_stream(file,
-					    &vpfe_dev->buffer_queue, wait);
-	return 0;
-}
-
-/* vpfe capture driver file operations */
-static const struct v4l2_file_operations vpfe_fops = {
-	.owner = THIS_MODULE,
-	.open = vpfe_open,
-	.release = vpfe_release,
-	.unlocked_ioctl = video_ioctl2,
-	.mmap = vpfe_mmap,
-	.poll = vpfe_poll
-};
-
-/*
- * vpfe_check_format()
- * This function adjust the input pixel format as per hardware
- * capabilities and update the same in pixfmt.
- * Following algorithm used :-
- *
- *	If given pixformat is not in the vpfe list of pix formats or not
- *	supported by the hardware, current value of pixformat in the device
- *	is used
- *	If given field is not supported, then current field is used. If field
- *	is different from current, then it is matched with that from sub device.
- *	Minimum height is 2 lines for interlaced or tb field and 1 line for
- *	progressive. Maximum height is clamped to active active lines of scan
- *	Minimum width is 32 bytes in memory and width is clamped to active
- *	pixels of scan.
- *	bytesperline is a multiple of 32.
- */
-static const struct vpfe_pixel_format *
-	vpfe_check_format(struct vpfe_device *vpfe_dev,
-			  struct v4l2_pix_format *pixfmt)
-{
-	u32 min_height = 1, min_width = 32, max_width, max_height;
-	const struct vpfe_pixel_format *vpfe_pix_fmt;
-	u32 pix;
-	int temp, found;
-
-	vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat);
-	if (NULL == vpfe_pix_fmt) {
-		/*
-		 * use current pixel format in the vpfe device. We
-		 * will find this pix format in the table
-		 */
-		pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat;
-		vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat);
-	}
-
-	/* check if hw supports it */
-	temp = 0;
-	found = 0;
-	while (ccdc_dev->hw_ops.enum_pix(&pix, temp) >= 0) {
-		if (vpfe_pix_fmt->fmtdesc.pixelformat == pix) {
-			found = 1;
-			break;
-		}
-		temp++;
-	}
-
-	if (!found) {
-		/* use current pixel format */
-		pixfmt->pixelformat = vpfe_dev->fmt.fmt.pix.pixelformat;
-		/*
-		 * Since this is currently used in the vpfe device, we
-		 * will find this pix format in the table
-		 */
-		vpfe_pix_fmt = vpfe_lookup_pix_format(pixfmt->pixelformat);
-	}
-
-	/* check what field format is supported */
-	if (pixfmt->field == V4L2_FIELD_ANY) {
-		/* if field is any, use current value as default */
-		pixfmt->field = vpfe_dev->fmt.fmt.pix.field;
-	}
-
-	/*
-	 * if field is not same as current field in the vpfe device
-	 * try matching the field with the sub device field
-	 */
-	if (vpfe_dev->fmt.fmt.pix.field != pixfmt->field) {
-		/*
-		 * If field value is not in the supported fields, use current
-		 * field used in the device as default
-		 */
-		switch (pixfmt->field) {
-		case V4L2_FIELD_INTERLACED:
-		case V4L2_FIELD_SEQ_TB:
-			/* if sub device is supporting progressive, use that */
-			if (!vpfe_dev->std_info.frame_format)
-				pixfmt->field = V4L2_FIELD_NONE;
-			break;
-		case V4L2_FIELD_NONE:
-			if (vpfe_dev->std_info.frame_format)
-				pixfmt->field = V4L2_FIELD_INTERLACED;
-			break;
-
-		default:
-			/* use current field as default */
-			pixfmt->field = vpfe_dev->fmt.fmt.pix.field;
-			break;
-		}
-	}
-
-	/* Now adjust image resolutions supported */
-	if (pixfmt->field == V4L2_FIELD_INTERLACED ||
-	    pixfmt->field == V4L2_FIELD_SEQ_TB)
-		min_height = 2;
-
-	max_width = vpfe_dev->std_info.active_pixels;
-	max_height = vpfe_dev->std_info.active_lines;
-	min_width /= vpfe_pix_fmt->bpp;
-
-	v4l2_info(&vpfe_dev->v4l2_dev, "width = %d, height = %d, bpp = %d\n",
-		  pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp);
-
-	pixfmt->width = clamp((pixfmt->width), min_width, max_width);
-	pixfmt->height = clamp((pixfmt->height), min_height, max_height);
-
-	/* If interlaced, adjust height to be a multiple of 2 */
-	if (pixfmt->field == V4L2_FIELD_INTERLACED)
-		pixfmt->height &= (~1);
-	/*
-	 * recalculate bytesperline and sizeimage since width
-	 * and height might have changed
-	 */
-	pixfmt->bytesperline = (((pixfmt->width * vpfe_pix_fmt->bpp) + 31)
-				& ~31);
-	if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12)
-		pixfmt->sizeimage =
-			pixfmt->bytesperline * pixfmt->height +
-			((pixfmt->bytesperline * pixfmt->height) >> 1);
-	else
-		pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height;
-
-	v4l2_info(&vpfe_dev->v4l2_dev, "adjusted width = %d, height ="
-		 " %d, bpp = %d, bytesperline = %d, sizeimage = %d\n",
-		 pixfmt->width, pixfmt->height, vpfe_pix_fmt->bpp,
-		 pixfmt->bytesperline, pixfmt->sizeimage);
-	return vpfe_pix_fmt;
-}
-
-static int vpfe_querycap(struct file *file, void  *priv,
-			       struct v4l2_capability *cap)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querycap\n");
-
-	cap->version = VPFE_CAPTURE_VERSION_CODE;
-	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
-	strlcpy(cap->driver, CAPTURE_DRV_NAME, sizeof(cap->driver));
-	strlcpy(cap->bus_info, "VPFE", sizeof(cap->bus_info));
-	strlcpy(cap->card, vpfe_dev->cfg->card_name, sizeof(cap->card));
-	return 0;
-}
-
-static int vpfe_g_fmt_vid_cap(struct file *file, void *priv,
-				struct v4l2_format *fmt)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_fmt_vid_cap\n");
-	/* Fill in the information about format */
-	*fmt = vpfe_dev->fmt;
-	return ret;
-}
-
-static int vpfe_enum_fmt_vid_cap(struct file *file, void  *priv,
-				   struct v4l2_fmtdesc *fmt)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	const struct vpfe_pixel_format *pix_fmt;
-	int temp_index;
-	u32 pix;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_fmt_vid_cap\n");
-
-	if (ccdc_dev->hw_ops.enum_pix(&pix, fmt->index) < 0)
-		return -EINVAL;
-
-	/* Fill in the information about format */
-	pix_fmt = vpfe_lookup_pix_format(pix);
-	if (NULL != pix_fmt) {
-		temp_index = fmt->index;
-		*fmt = pix_fmt->fmtdesc;
-		fmt->index = temp_index;
-		return 0;
-	}
-	return -EINVAL;
-}
-
-static int vpfe_s_fmt_vid_cap(struct file *file, void *priv,
-				struct v4l2_format *fmt)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	const struct vpfe_pixel_format *pix_fmts;
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_fmt_vid_cap\n");
-
-	/* If streaming is started, return error */
-	if (vpfe_dev->started) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is started\n");
-		return -EBUSY;
-	}
-
-	/* Check for valid frame format */
-	pix_fmts = vpfe_check_format(vpfe_dev, &fmt->fmt.pix);
-
-	if (NULL == pix_fmts)
-		return -EINVAL;
-
-	/* store the pixel format in the device  object */
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	/* First detach any IRQ if currently attached */
-	vpfe_detach_irq(vpfe_dev);
-	vpfe_dev->fmt = *fmt;
-	/* set image capture parameters in the ccdc */
-	ret = vpfe_config_ccdc_image_format(vpfe_dev);
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-static int vpfe_try_fmt_vid_cap(struct file *file, void *priv,
-				  struct v4l2_format *f)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	const struct vpfe_pixel_format *pix_fmts;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_try_fmt_vid_cap\n");
-
-	pix_fmts = vpfe_check_format(vpfe_dev, &f->fmt.pix);
-	if (NULL == pix_fmts)
-		return -EINVAL;
-	return 0;
-}
-
-/*
- * vpfe_get_subdev_input_index - Get subdev index and subdev input index for a
- * given app input index
- */
-static int vpfe_get_subdev_input_index(struct vpfe_device *vpfe_dev,
-					int *subdev_index,
-					int *subdev_input_index,
-					int app_input_index)
-{
-	struct vpfe_config *cfg = vpfe_dev->cfg;
-	struct vpfe_subdev_info *sdinfo;
-	int i, j = 0;
-
-	for (i = 0; i < cfg->num_subdevs; i++) {
-		sdinfo = &cfg->sub_devs[i];
-		if (app_input_index < (j + sdinfo->num_inputs)) {
-			*subdev_index = i;
-			*subdev_input_index = app_input_index - j;
-			return 0;
-		}
-		j += sdinfo->num_inputs;
-	}
-	return -EINVAL;
-}
-
-/*
- * vpfe_get_app_input - Get app input index for a given subdev input index
- * driver stores the input index of the current sub device and translate it
- * when application request the current input
- */
-static int vpfe_get_app_input_index(struct vpfe_device *vpfe_dev,
-				    int *app_input_index)
-{
-	struct vpfe_config *cfg = vpfe_dev->cfg;
-	struct vpfe_subdev_info *sdinfo;
-	int i, j = 0;
-
-	for (i = 0; i < cfg->num_subdevs; i++) {
-		sdinfo = &cfg->sub_devs[i];
-		if (!strcmp(sdinfo->name, vpfe_dev->current_subdev->name)) {
-			if (vpfe_dev->current_input >= sdinfo->num_inputs)
-				return -1;
-			*app_input_index = j + vpfe_dev->current_input;
-			return 0;
-		}
-		j += sdinfo->num_inputs;
-	}
-	return -EINVAL;
-}
-
-static int vpfe_enum_input(struct file *file, void *priv,
-				 struct v4l2_input *inp)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_subdev_info *sdinfo;
-	int subdev, index ;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_enum_input\n");
-
-	if (vpfe_get_subdev_input_index(vpfe_dev,
-					&subdev,
-					&index,
-					inp->index) < 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "input information not found"
-			 " for the subdev\n");
-		return -EINVAL;
-	}
-	sdinfo = &vpfe_dev->cfg->sub_devs[subdev];
-	memcpy(inp, &sdinfo->inputs[index], sizeof(struct v4l2_input));
-	return 0;
-}
-
-static int vpfe_g_input(struct file *file, void *priv, unsigned int *index)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_input\n");
-
-	return vpfe_get_app_input_index(vpfe_dev, index);
-}
-
-
-static int vpfe_s_input(struct file *file, void *priv, unsigned int index)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_subdev_info *sdinfo;
-	int subdev_index, inp_index;
-	struct vpfe_route *route;
-	u32 input = 0, output = 0;
-	int ret = -EINVAL;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_input\n");
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	/*
-	 * If streaming is started return device busy
-	 * error
-	 */
-	if (vpfe_dev->started) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Streaming is on\n");
-		ret = -EBUSY;
-		goto unlock_out;
-	}
-
-	if (vpfe_get_subdev_input_index(vpfe_dev,
-					&subdev_index,
-					&inp_index,
-					index) < 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "invalid input index\n");
-		goto unlock_out;
-	}
-
-	sdinfo = &vpfe_dev->cfg->sub_devs[subdev_index];
-	route = &sdinfo->routes[inp_index];
-	if (route && sdinfo->can_route) {
-		input = route->input;
-		output = route->output;
-	}
-
-	ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					 video, s_routing, input, output, 0);
-
-	if (ret) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			"vpfe_doioctl:error in setting input in decoder\n");
-		ret = -EINVAL;
-		goto unlock_out;
-	}
-	vpfe_dev->current_subdev = sdinfo;
-	vpfe_dev->current_input = index;
-	vpfe_dev->std_index = 0;
-
-	/* set the bus/interface parameter for the sub device in ccdc */
-	ret = ccdc_dev->hw_ops.set_hw_if_params(&sdinfo->ccdc_if_params);
-	if (ret)
-		goto unlock_out;
-
-	/* set the default image parameters in the device */
-	ret = vpfe_config_image_format(vpfe_dev,
-				&vpfe_standards[vpfe_dev->std_index].std_id);
-unlock_out:
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-static int vpfe_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_subdev_info *sdinfo;
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querystd\n");
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	sdinfo = vpfe_dev->current_subdev;
-	if (ret)
-		return ret;
-	/* Call querystd function of decoder device */
-	ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					 video, querystd, std_id);
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-static int vpfe_s_std(struct file *file, void *priv, v4l2_std_id *std_id)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_subdev_info *sdinfo;
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_std\n");
-
-	/* Call decoder driver function to set the standard */
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	sdinfo = vpfe_dev->current_subdev;
-	/* If streaming is started, return device busy error */
-	if (vpfe_dev->started) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "streaming is started\n");
-		ret = -EBUSY;
-		goto unlock_out;
-	}
-
-	ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					 core, s_std, *std_id);
-	if (ret < 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Failed to set standard\n");
-		goto unlock_out;
-	}
-	ret = vpfe_config_image_format(vpfe_dev, std_id);
-
-unlock_out:
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-static int vpfe_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_std\n");
-
-	*std_id = vpfe_standards[vpfe_dev->std_index].std_id;
-	return 0;
-}
-/*
- *  Videobuf operations
- */
-static int vpfe_videobuf_setup(struct videobuf_queue *vq,
-				unsigned int *count,
-				unsigned int *size)
-{
-	struct vpfe_fh *fh = vq->priv_data;
-	struct vpfe_device *vpfe_dev = fh->vpfe_dev;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_setup\n");
-	*size = vpfe_dev->fmt.fmt.pix.sizeimage;
-	if (vpfe_dev->memory == V4L2_MEMORY_MMAP &&
-		vpfe_dev->fmt.fmt.pix.sizeimage > config_params.device_bufsize)
-		*size = config_params.device_bufsize;
-
-	if (*count < config_params.min_numbuffers)
-		*count = config_params.min_numbuffers;
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-		"count=%d, size=%d\n", *count, *size);
-	return 0;
-}
-
-static int vpfe_videobuf_prepare(struct videobuf_queue *vq,
-				struct videobuf_buffer *vb,
-				enum v4l2_field field)
-{
-	struct vpfe_fh *fh = vq->priv_data;
-	struct vpfe_device *vpfe_dev = fh->vpfe_dev;
-	unsigned long addr;
-	int ret;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_prepare\n");
-
-	/* If buffer is not initialized, initialize it */
-	if (VIDEOBUF_NEEDS_INIT == vb->state) {
-		vb->width = vpfe_dev->fmt.fmt.pix.width;
-		vb->height = vpfe_dev->fmt.fmt.pix.height;
-		vb->size = vpfe_dev->fmt.fmt.pix.sizeimage;
-		vb->field = field;
-
-		ret = videobuf_iolock(vq, vb, NULL);
-		if (ret < 0)
-			return ret;
-
-		addr = videobuf_to_dma_contig(vb);
-		/* Make sure user addresses are aligned to 32 bytes */
-		if (!ALIGN(addr, 32))
-			return -EINVAL;
-
-		vb->state = VIDEOBUF_PREPARED;
-	}
-	return 0;
-}
-
-static void vpfe_videobuf_queue(struct videobuf_queue *vq,
-				struct videobuf_buffer *vb)
-{
-	/* Get the file handle object and device object */
-	struct vpfe_fh *fh = vq->priv_data;
-	struct vpfe_device *vpfe_dev = fh->vpfe_dev;
-	unsigned long flags;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_buffer_queue\n");
-
-	/* add the buffer to the DMA queue */
-	spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags);
-	list_add_tail(&vb->queue, &vpfe_dev->dma_queue);
-	spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags);
-
-	/* Change state of the buffer */
-	vb->state = VIDEOBUF_QUEUED;
-}
-
-static void vpfe_videobuf_release(struct videobuf_queue *vq,
-				  struct videobuf_buffer *vb)
-{
-	struct vpfe_fh *fh = vq->priv_data;
-	struct vpfe_device *vpfe_dev = fh->vpfe_dev;
-	unsigned long flags;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_videobuf_release\n");
-
-	/*
-	 * We need to flush the buffer from the dma queue since
-	 * they are de-allocated
-	 */
-	spin_lock_irqsave(&vpfe_dev->dma_queue_lock, flags);
-	INIT_LIST_HEAD(&vpfe_dev->dma_queue);
-	spin_unlock_irqrestore(&vpfe_dev->dma_queue_lock, flags);
-	videobuf_dma_contig_free(vq, vb);
-	vb->state = VIDEOBUF_NEEDS_INIT;
-}
-
-static struct videobuf_queue_ops vpfe_videobuf_qops = {
-	.buf_setup      = vpfe_videobuf_setup,
-	.buf_prepare    = vpfe_videobuf_prepare,
-	.buf_queue      = vpfe_videobuf_queue,
-	.buf_release    = vpfe_videobuf_release,
-};
-
-/*
- * vpfe_reqbufs. currently support REQBUF only once opening
- * the device.
- */
-static int vpfe_reqbufs(struct file *file, void *priv,
-			struct v4l2_requestbuffers *req_buf)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_fh *fh = file->private_data;
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_reqbufs\n");
-
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != req_buf->type) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buffer type\n");
-		return -EINVAL;
-	}
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	if (vpfe_dev->io_usrs != 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Only one IO user allowed\n");
-		ret = -EBUSY;
-		goto unlock_out;
-	}
-
-	vpfe_dev->memory = req_buf->memory;
-	videobuf_queue_dma_contig_init(&vpfe_dev->buffer_queue,
-				&vpfe_videobuf_qops,
-				vpfe_dev->pdev,
-				&vpfe_dev->irqlock,
-				req_buf->type,
-				vpfe_dev->fmt.fmt.pix.field,
-				sizeof(struct videobuf_buffer),
-				fh, NULL);
-
-	fh->io_allowed = 1;
-	vpfe_dev->io_usrs = 1;
-	INIT_LIST_HEAD(&vpfe_dev->dma_queue);
-	ret = videobuf_reqbufs(&vpfe_dev->buffer_queue, req_buf);
-unlock_out:
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-static int vpfe_querybuf(struct file *file, void *priv,
-			 struct v4l2_buffer *buf)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_querybuf\n");
-
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
-		return  -EINVAL;
-	}
-
-	if (vpfe_dev->memory != V4L2_MEMORY_MMAP) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid memory\n");
-		return -EINVAL;
-	}
-	/* Call videobuf_querybuf to get information */
-	return videobuf_querybuf(&vpfe_dev->buffer_queue, buf);
-}
-
-static int vpfe_qbuf(struct file *file, void *priv,
-		     struct v4l2_buffer *p)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_fh *fh = file->private_data;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_qbuf\n");
-
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != p->type) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
-		return -EINVAL;
-	}
-
-	/*
-	 * If this file handle is not allowed to do IO,
-	 * return error
-	 */
-	if (!fh->io_allowed) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n");
-		return -EACCES;
-	}
-	return videobuf_qbuf(&vpfe_dev->buffer_queue, p);
-}
-
-static int vpfe_dqbuf(struct file *file, void *priv,
-		      struct v4l2_buffer *buf)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_dqbuf\n");
-
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf->type) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
-		return -EINVAL;
-	}
-	return videobuf_dqbuf(&vpfe_dev->buffer_queue,
-				      buf, file->f_flags & O_NONBLOCK);
-}
-
-static int vpfe_queryctrl(struct file *file, void *priv,
-		struct v4l2_queryctrl *qctrl)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_subdev_info *sdinfo;
-
-	sdinfo = vpfe_dev->current_subdev;
-
-	return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					 core, queryctrl, qctrl);
-
-}
-
-static int vpfe_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_subdev_info *sdinfo;
-
-	sdinfo = vpfe_dev->current_subdev;
-
-	return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					 core, g_ctrl, ctrl);
-}
-
-static int vpfe_s_ctrl(struct file *file, void *priv, struct v4l2_control *ctrl)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_subdev_info *sdinfo;
-
-	sdinfo = vpfe_dev->current_subdev;
-
-	return v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					 core, s_ctrl, ctrl);
-}
-
-/*
- * vpfe_calculate_offsets : This function calculates buffers offset
- * for top and bottom field
- */
-static void vpfe_calculate_offsets(struct vpfe_device *vpfe_dev)
-{
-	struct v4l2_rect image_win;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_calculate_offsets\n");
-
-	ccdc_dev->hw_ops.get_image_window(&image_win);
-	vpfe_dev->field_off = image_win.height * image_win.width;
-}
-
-/* vpfe_start_ccdc_capture: start streaming in ccdc/isif */
-static void vpfe_start_ccdc_capture(struct vpfe_device *vpfe_dev)
-{
-	ccdc_dev->hw_ops.enable(1);
-	if (ccdc_dev->hw_ops.enable_out_to_sdram)
-		ccdc_dev->hw_ops.enable_out_to_sdram(1);
-	vpfe_dev->started = 1;
-}
-
-/*
- * vpfe_streamon. Assume the DMA queue is not empty.
- * application is expected to call QBUF before calling
- * this ioctl. If not, driver returns error
- */
-static int vpfe_streamon(struct file *file, void *priv,
-			 enum v4l2_buf_type buf_type)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_fh *fh = file->private_data;
-	struct vpfe_subdev_info *sdinfo;
-	unsigned long addr;
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamon\n");
-
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
-		return -EINVAL;
-	}
-
-	/* If file handle is not allowed IO, return error */
-	if (!fh->io_allowed) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n");
-		return -EACCES;
-	}
-
-	sdinfo = vpfe_dev->current_subdev;
-	ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					video, s_stream, 1);
-
-	if (ret && (ret != -ENOIOCTLCMD)) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "stream on failed in subdev\n");
-		return -EINVAL;
-	}
-
-	/* If buffer queue is empty, return error */
-	if (list_empty(&vpfe_dev->buffer_queue.stream)) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "buffer queue is empty\n");
-		return -EIO;
-	}
-
-	/* Call videobuf_streamon to start streaming * in videobuf */
-	ret = videobuf_streamon(&vpfe_dev->buffer_queue);
-	if (ret)
-		return ret;
-
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		goto streamoff;
-	/* Get the next frame from the buffer queue */
-	vpfe_dev->next_frm = list_entry(vpfe_dev->dma_queue.next,
-					struct videobuf_buffer, queue);
-	vpfe_dev->cur_frm = vpfe_dev->next_frm;
-	/* Remove buffer from the buffer queue */
-	list_del(&vpfe_dev->cur_frm->queue);
-	/* Mark state of the current frame to active */
-	vpfe_dev->cur_frm->state = VIDEOBUF_ACTIVE;
-	/* Initialize field_id and started member */
-	vpfe_dev->field_id = 0;
-	addr = videobuf_to_dma_contig(vpfe_dev->cur_frm);
-
-	/* Calculate field offset */
-	vpfe_calculate_offsets(vpfe_dev);
-
-	if (vpfe_attach_irq(vpfe_dev) < 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			 "Error in attaching interrupt handle\n");
-		ret = -EFAULT;
-		goto unlock_out;
-	}
-	if (ccdc_dev->hw_ops.configure() < 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			 "Error in configuring ccdc\n");
-		ret = -EINVAL;
-		goto unlock_out;
-	}
-	ccdc_dev->hw_ops.setfbaddr((unsigned long)(addr));
-	vpfe_start_ccdc_capture(vpfe_dev);
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-unlock_out:
-	mutex_unlock(&vpfe_dev->lock);
-streamoff:
-	ret = videobuf_streamoff(&vpfe_dev->buffer_queue);
-	return ret;
-}
-
-static int vpfe_streamoff(struct file *file, void *priv,
-			  enum v4l2_buf_type buf_type)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	struct vpfe_fh *fh = file->private_data;
-	struct vpfe_subdev_info *sdinfo;
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_streamoff\n");
-
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != buf_type) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Invalid buf type\n");
-		return -EINVAL;
-	}
-
-	/* If io is allowed for this file handle, return error */
-	if (!fh->io_allowed) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "fh->io_allowed\n");
-		return -EACCES;
-	}
-
-	/* If streaming is not started, return error */
-	if (!vpfe_dev->started) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "device started\n");
-		return -EINVAL;
-	}
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	vpfe_stop_ccdc_capture(vpfe_dev);
-	vpfe_detach_irq(vpfe_dev);
-
-	sdinfo = vpfe_dev->current_subdev;
-	ret = v4l2_device_call_until_err(&vpfe_dev->v4l2_dev, sdinfo->grp_id,
-					video, s_stream, 0);
-
-	if (ret && (ret != -ENOIOCTLCMD))
-		v4l2_err(&vpfe_dev->v4l2_dev, "stream off failed in subdev\n");
-	ret = videobuf_streamoff(&vpfe_dev->buffer_queue);
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-static int vpfe_cropcap(struct file *file, void *priv,
-			      struct v4l2_cropcap *crop)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_cropcap\n");
-
-	if (vpfe_dev->std_index >= ARRAY_SIZE(vpfe_standards))
-		return -EINVAL;
-
-	memset(crop, 0, sizeof(struct v4l2_cropcap));
-	crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	crop->bounds.width = crop->defrect.width =
-		vpfe_standards[vpfe_dev->std_index].width;
-	crop->bounds.height = crop->defrect.height =
-		vpfe_standards[vpfe_dev->std_index].height;
-	crop->pixelaspect = vpfe_standards[vpfe_dev->std_index].pixelaspect;
-	return 0;
-}
-
-static int vpfe_g_crop(struct file *file, void *priv,
-			     struct v4l2_crop *crop)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_g_crop\n");
-
-	crop->c = vpfe_dev->crop;
-	return 0;
-}
-
-static int vpfe_s_crop(struct file *file, void *priv,
-			     struct v4l2_crop *crop)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	int ret = 0;
-
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_crop\n");
-
-	if (vpfe_dev->started) {
-		/* make sure streaming is not started */
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			"Cannot change crop when streaming is ON\n");
-		return -EBUSY;
-	}
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	if (crop->c.top < 0 || crop->c.left < 0) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			"doesn't support negative values for top & left\n");
-		ret = -EINVAL;
-		goto unlock_out;
-	}
-
-	/* adjust the width to 16 pixel boundary */
-	crop->c.width = ((crop->c.width + 15) & ~0xf);
-
-	/* make sure parameters are valid */
-	if ((crop->c.left + crop->c.width >
-		vpfe_dev->std_info.active_pixels) ||
-	    (crop->c.top + crop->c.height >
-		vpfe_dev->std_info.active_lines)) {
-		v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_CROP params\n");
-		ret = -EINVAL;
-		goto unlock_out;
-	}
-	ccdc_dev->hw_ops.set_image_window(&crop->c);
-	vpfe_dev->fmt.fmt.pix.width = crop->c.width;
-	vpfe_dev->fmt.fmt.pix.height = crop->c.height;
-	vpfe_dev->fmt.fmt.pix.bytesperline =
-		ccdc_dev->hw_ops.get_line_length();
-	vpfe_dev->fmt.fmt.pix.sizeimage =
-		vpfe_dev->fmt.fmt.pix.bytesperline *
-		vpfe_dev->fmt.fmt.pix.height;
-	vpfe_dev->crop = crop->c;
-unlock_out:
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-
-static long vpfe_param_handler(struct file *file, void *priv,
-		bool valid_prio, int cmd, void *param)
-{
-	struct vpfe_device *vpfe_dev = video_drvdata(file);
-	int ret = 0;
-
-	v4l2_dbg(2, debug, &vpfe_dev->v4l2_dev, "vpfe_param_handler\n");
-
-	if (vpfe_dev->started) {
-		/* only allowed if streaming is not started */
-		v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-			"device already started\n");
-		return -EBUSY;
-	}
-
-	ret = mutex_lock_interruptible(&vpfe_dev->lock);
-	if (ret)
-		return ret;
-
-	switch (cmd) {
-	case VPFE_CMD_S_CCDC_RAW_PARAMS:
-		v4l2_warn(&vpfe_dev->v4l2_dev,
-			  "VPFE_CMD_S_CCDC_RAW_PARAMS: experimental ioctl\n");
-		if (ccdc_dev->hw_ops.set_params) {
-			ret = ccdc_dev->hw_ops.set_params(param);
-			if (ret) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Error setting parameters in CCDC\n");
-				goto unlock_out;
-			}
-			if (vpfe_get_ccdc_image_format(vpfe_dev,
-						       &vpfe_dev->fmt) < 0) {
-				v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-					"Invalid image format at CCDC\n");
-				goto unlock_out;
-			}
-		} else {
-			ret = -EINVAL;
-			v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-				"VPFE_CMD_S_CCDC_RAW_PARAMS not supported\n");
-		}
-		break;
-	default:
-		ret = -ENOTTY;
-	}
-unlock_out:
-	mutex_unlock(&vpfe_dev->lock);
-	return ret;
-}
-
-
-/* vpfe capture ioctl operations */
-static const struct v4l2_ioctl_ops vpfe_ioctl_ops = {
-	.vidioc_querycap	 = vpfe_querycap,
-	.vidioc_g_fmt_vid_cap    = vpfe_g_fmt_vid_cap,
-	.vidioc_enum_fmt_vid_cap = vpfe_enum_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap    = vpfe_s_fmt_vid_cap,
-	.vidioc_try_fmt_vid_cap  = vpfe_try_fmt_vid_cap,
-	.vidioc_enum_input	 = vpfe_enum_input,
-	.vidioc_g_input		 = vpfe_g_input,
-	.vidioc_s_input		 = vpfe_s_input,
-	.vidioc_querystd	 = vpfe_querystd,
-	.vidioc_s_std		 = vpfe_s_std,
-	.vidioc_g_std		 = vpfe_g_std,
-	.vidioc_queryctrl	 = vpfe_queryctrl,
-	.vidioc_g_ctrl		 = vpfe_g_ctrl,
-	.vidioc_s_ctrl		 = vpfe_s_ctrl,
-	.vidioc_reqbufs		 = vpfe_reqbufs,
-	.vidioc_querybuf	 = vpfe_querybuf,
-	.vidioc_qbuf		 = vpfe_qbuf,
-	.vidioc_dqbuf		 = vpfe_dqbuf,
-	.vidioc_streamon	 = vpfe_streamon,
-	.vidioc_streamoff	 = vpfe_streamoff,
-	.vidioc_cropcap		 = vpfe_cropcap,
-	.vidioc_g_crop		 = vpfe_g_crop,
-	.vidioc_s_crop		 = vpfe_s_crop,
-	.vidioc_default		 = vpfe_param_handler,
-};
-
-static struct vpfe_device *vpfe_initialize(void)
-{
-	struct vpfe_device *vpfe_dev;
-
-	/* Default number of buffers should be 3 */
-	if ((numbuffers > 0) &&
-	    (numbuffers < config_params.min_numbuffers))
-		numbuffers = config_params.min_numbuffers;
-
-	/*
-	 * Set buffer size to min buffers size if invalid buffer size is
-	 * given
-	 */
-	if (bufsize < config_params.min_bufsize)
-		bufsize = config_params.min_bufsize;
-
-	config_params.numbuffers = numbuffers;
-
-	if (numbuffers)
-		config_params.device_bufsize = bufsize;
-
-	/* Allocate memory for device objects */
-	vpfe_dev = kzalloc(sizeof(*vpfe_dev), GFP_KERNEL);
-
-	return vpfe_dev;
-}
-
-/*
- * vpfe_probe : This function creates device entries by register
- * itself to the V4L2 driver and initializes fields of each
- * device objects
- */
-static __devinit int vpfe_probe(struct platform_device *pdev)
-{
-	struct vpfe_subdev_info *sdinfo;
-	struct vpfe_config *vpfe_cfg;
-	struct resource *res1;
-	struct vpfe_device *vpfe_dev;
-	struct i2c_adapter *i2c_adap;
-	struct video_device *vfd;
-	int ret = -ENOMEM, i, j;
-	int num_subdevs = 0;
-
-	/* Get the pointer to the device object */
-	vpfe_dev = vpfe_initialize();
-
-	if (!vpfe_dev) {
-		v4l2_err(pdev->dev.driver,
-			"Failed to allocate memory for vpfe_dev\n");
-		return ret;
-	}
-
-	vpfe_dev->pdev = &pdev->dev;
-
-	if (NULL == pdev->dev.platform_data) {
-		v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n");
-		ret = -ENODEV;
-		goto probe_free_dev_mem;
-	}
-
-	vpfe_cfg = pdev->dev.platform_data;
-	vpfe_dev->cfg = vpfe_cfg;
-	if (NULL == vpfe_cfg->ccdc ||
-	    NULL == vpfe_cfg->card_name ||
-	    NULL == vpfe_cfg->sub_devs) {
-		v4l2_err(pdev->dev.driver, "null ptr in vpfe_cfg\n");
-		ret = -ENOENT;
-		goto probe_free_dev_mem;
-	}
-
-	/* Allocate memory for ccdc configuration */
-	ccdc_cfg = kmalloc(sizeof(struct ccdc_config), GFP_KERNEL);
-	if (NULL == ccdc_cfg) {
-		v4l2_err(pdev->dev.driver,
-			 "Memory allocation failed for ccdc_cfg\n");
-		goto probe_free_lock;
-	}
-
-	mutex_lock(&ccdc_lock);
-
-	strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32);
-	/* Get VINT0 irq resource */
-	res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res1) {
-		v4l2_err(pdev->dev.driver,
-			 "Unable to get interrupt for VINT0\n");
-		ret = -ENODEV;
-		goto probe_free_ccdc_cfg_mem;
-	}
-	vpfe_dev->ccdc_irq0 = res1->start;
-
-	/* Get VINT1 irq resource */
-	res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
-	if (!res1) {
-		v4l2_err(pdev->dev.driver,
-			 "Unable to get interrupt for VINT1\n");
-		ret = -ENODEV;
-		goto probe_free_ccdc_cfg_mem;
-	}
-	vpfe_dev->ccdc_irq1 = res1->start;
-
-	ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED,
-			  "vpfe_capture0", vpfe_dev);
-
-	if (0 != ret) {
-		v4l2_err(pdev->dev.driver, "Unable to request interrupt\n");
-		goto probe_free_ccdc_cfg_mem;
-	}
-
-	/* Allocate memory for video device */
-	vfd = video_device_alloc();
-	if (NULL == vfd) {
-		ret = -ENOMEM;
-		v4l2_err(pdev->dev.driver, "Unable to alloc video device\n");
-		goto probe_out_release_irq;
-	}
-
-	/* Initialize field of video device */
-	vfd->release		= video_device_release;
-	vfd->fops		= &vpfe_fops;
-	vfd->ioctl_ops		= &vpfe_ioctl_ops;
-	vfd->tvnorms		= 0;
-	vfd->current_norm	= V4L2_STD_PAL;
-	vfd->v4l2_dev 		= &vpfe_dev->v4l2_dev;
-	snprintf(vfd->name, sizeof(vfd->name),
-		 "%s_V%d.%d.%d",
-		 CAPTURE_DRV_NAME,
-		 (VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff,
-		 (VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff,
-		 (VPFE_CAPTURE_VERSION_CODE) & 0xff);
-	/* Set video_dev to the video device */
-	vpfe_dev->video_dev	= vfd;
-
-	ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev);
-	if (ret) {
-		v4l2_err(pdev->dev.driver,
-			"Unable to register v4l2 device.\n");
-		goto probe_out_video_release;
-	}
-	v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n");
-	spin_lock_init(&vpfe_dev->irqlock);
-	spin_lock_init(&vpfe_dev->dma_queue_lock);
-	mutex_init(&vpfe_dev->lock);
-
-	/* Initialize field of the device objects */
-	vpfe_dev->numbuffers = config_params.numbuffers;
-
-	/* Initialize prio member of device object */
-	v4l2_prio_init(&vpfe_dev->prio);
-	/* register video device */
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-		"trying to register vpfe device.\n");
-	v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
-		"video_dev=%x\n", (int)&vpfe_dev->video_dev);
-	vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	ret = video_register_device(vpfe_dev->video_dev,
-				    VFL_TYPE_GRABBER, -1);
-
-	if (ret) {
-		v4l2_err(pdev->dev.driver,
-			"Unable to register video device.\n");
-		goto probe_out_v4l2_unregister;
-	}
-
-	v4l2_info(&vpfe_dev->v4l2_dev, "video device registered\n");
-	/* set the driver data in platform device */
-	platform_set_drvdata(pdev, vpfe_dev);
-	/* set driver private data */
-	video_set_drvdata(vpfe_dev->video_dev, vpfe_dev);
-	i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id);
-	num_subdevs = vpfe_cfg->num_subdevs;
-	vpfe_dev->sd = kmalloc(sizeof(struct v4l2_subdev *) * num_subdevs,
-				GFP_KERNEL);
-	if (NULL == vpfe_dev->sd) {
-		v4l2_err(&vpfe_dev->v4l2_dev,
-			"unable to allocate memory for subdevice pointers\n");
-		ret = -ENOMEM;
-		goto probe_out_video_unregister;
-	}
-
-	for (i = 0; i < num_subdevs; i++) {
-		struct v4l2_input *inps;
-
-		sdinfo = &vpfe_cfg->sub_devs[i];
-
-		/* Load up the subdevice */
-		vpfe_dev->sd[i] =
-			v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev,
-						  i2c_adap,
-						  &sdinfo->board_info,
-						  NULL);
-		if (vpfe_dev->sd[i]) {
-			v4l2_info(&vpfe_dev->v4l2_dev,
-				  "v4l2 sub device %s registered\n",
-				  sdinfo->name);
-			vpfe_dev->sd[i]->grp_id = sdinfo->grp_id;
-			/* update tvnorms from the sub devices */
-			for (j = 0; j < sdinfo->num_inputs; j++) {
-				inps = &sdinfo->inputs[j];
-				vfd->tvnorms |= inps->std;
-			}
-		} else {
-			v4l2_info(&vpfe_dev->v4l2_dev,
-				  "v4l2 sub device %s register fails\n",
-				  sdinfo->name);
-			goto probe_sd_out;
-		}
-	}
-
-	/* set first sub device as current one */
-	vpfe_dev->current_subdev = &vpfe_cfg->sub_devs[0];
-
-	/* We have at least one sub device to work with */
-	mutex_unlock(&ccdc_lock);
-	return 0;
-
-probe_sd_out:
-	kfree(vpfe_dev->sd);
-probe_out_video_unregister:
-	video_unregister_device(vpfe_dev->video_dev);
-probe_out_v4l2_unregister:
-	v4l2_device_unregister(&vpfe_dev->v4l2_dev);
-probe_out_video_release:
-	if (!video_is_registered(vpfe_dev->video_dev))
-		video_device_release(vpfe_dev->video_dev);
-probe_out_release_irq:
-	free_irq(vpfe_dev->ccdc_irq0, vpfe_dev);
-probe_free_ccdc_cfg_mem:
-	kfree(ccdc_cfg);
-probe_free_lock:
-	mutex_unlock(&ccdc_lock);
-probe_free_dev_mem:
-	kfree(vpfe_dev);
-	return ret;
-}
-
-/*
- * vpfe_remove : It un-register device from V4L2 driver
- */
-static int __devexit vpfe_remove(struct platform_device *pdev)
-{
-	struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev);
-
-	v4l2_info(pdev->dev.driver, "vpfe_remove\n");
-
-	free_irq(vpfe_dev->ccdc_irq0, vpfe_dev);
-	kfree(vpfe_dev->sd);
-	v4l2_device_unregister(&vpfe_dev->v4l2_dev);
-	video_unregister_device(vpfe_dev->video_dev);
-	kfree(vpfe_dev);
-	kfree(ccdc_cfg);
-	return 0;
-}
-
-static int vpfe_suspend(struct device *dev)
-{
-	return 0;
-}
-
-static int vpfe_resume(struct device *dev)
-{
-	return 0;
-}
-
-static const struct dev_pm_ops vpfe_dev_pm_ops = {
-	.suspend = vpfe_suspend,
-	.resume = vpfe_resume,
-};
-
-static struct platform_driver vpfe_driver = {
-	.driver = {
-		.name = CAPTURE_DRV_NAME,
-		.owner = THIS_MODULE,
-		.pm = &vpfe_dev_pm_ops,
-	},
-	.probe = vpfe_probe,
-	.remove = __devexit_p(vpfe_remove),
-};
-
-module_platform_driver(vpfe_driver);