generic-poky/meta/packages/linux/linux-omap-2.6.29/isp/standalone/0001-Resizer-and-Previewer-driver-added-to-commit.patch

From 3041daa54b49bcb6ab444c7b9e14bc6a1ade6236 Mon Sep 17 00:00:00 2001
From: Vaibhav Hiremath <hvaibhav@ti.com>
Date: Fri, 13 Feb 2009 14:44:20 +0530
Subject: [PATCH 1/2] Resizer and Previewer driver added to commit

The Resizer and Previewer driver added to the commit
from the patch submitted by Sergio on 12 Dec 2008.

The new WTBU code base and Nokia fixes package doesn't contain
standalone resizer driver support.

Following major changes done -

	- Added stand-alone resizer driver support
	  in isp.c file.
	- Seperate Kconfig file created
	- hardware access of resizer module fixed as per new
	  isp.c

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
---
 drivers/media/video/Kconfig              |    5 +-
 drivers/media/video/isp/Kconfig          |   16 +
 drivers/media/video/isp/Makefile         |    7 +
 drivers/media/video/isp/isp.c            |   12 +
 drivers/media/video/isp/ispmmu.c         |    1 +
 drivers/media/video/isp/omap_previewer.c |  825 +++++++++++++++
 drivers/media/video/isp/omap_previewer.h |  162 +++
 drivers/media/video/isp/omap_resizer.c   | 1634 ++++++++++++++++++++++++++++++
 include/linux/omap_resizer.h             |  136 +++
 9 files changed, 2794 insertions(+), 4 deletions(-)
 create mode 100644 drivers/media/video/isp/Kconfig
 create mode 100644 drivers/media/video/isp/omap_previewer.c
 create mode 100644 drivers/media/video/isp/omap_previewer.h
 create mode 100644 drivers/media/video/isp/omap_resizer.c
 create mode 100644 include/linux/omap_resizer.h

diff --git a/drivers/media/video/isp/Kconfig b/drivers/media/video/isp/Kconfig
new file mode 100644
index 0000000..acda63b
--- /dev/null
+++ b/drivers/media/video/isp/Kconfig
@@ -0,0 +1,16 @@
+# Kconfig for OMAP3 ISP driver
+
+config VIDEO_OMAP3_ISP
+	tristate
+	select VIDEOBUF_GEN
+	select VIDEOBUF_DMA_SG
+
+config VIDEO_OMAP34XX_ISP_PREVIEWER
+	tristate "OMAP ISP Previewer"
+	depends on !ARCH_OMAP3410
+	select VIDEO_OMAP3_ISP
+
+config VIDEO_OMAP34XX_ISP_RESIZER
+	tristate "OMAP ISP Resizer"
+	depends on !ARCH_OMAP3410
+	select VIDEO_OMAP3_ISP
diff --git a/drivers/media/video/isp/Makefile b/drivers/media/video/isp/Makefile
index 0f9301c..ed10a51 100644
--- a/drivers/media/video/isp/Makefile
+++ b/drivers/media/video/isp/Makefile
@@ -7,6 +7,13 @@ else
 isp-mod-objs += \
 	isp.o ispccdc.o ispmmu.o \
 	isppreview.o ispresizer.o isph3a.o isphist.o isp_af.o ispcsi2.o
+
+obj-$(CONFIG_VIDEO_OMAP34XX_ISP_PREVIEWER) += \
+	omap_previewer.o
+
+obj-$(CONFIG_VIDEO_OMAP34XX_ISP_RESIZER) += \
+	omap_resizer.o
+
 endif
 
 obj-$(CONFIG_VIDEO_OMAP3_ISP) += isp-mod.o
diff --git a/drivers/media/video/isp/isp.c b/drivers/media/video/isp/isp.c
index 6034a56..09a1792 100644
--- a/drivers/media/video/isp/isp.c
+++ b/drivers/media/video/isp/isp.c
@@ -521,6 +521,13 @@ int isp_set_callback(enum isp_callback_type type, isp_callback_t callback,
 					OMAP3_ISP_IOMEM_MAIN,
 					ISP_IRQ0ENABLE);
 		break;
+	case CBK_RESZ_DONE:
+		isp_reg_writel(IRQ0ENABLE_RSZ_DONE_IRQ, OMAP3_ISP_IOMEM_MAIN,
+				ISP_IRQ0STATUS);
+		isp_reg_writel(isp_reg_readl(OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0ENABLE) |
+				IRQ0ENABLE_RSZ_DONE_IRQ, OMAP3_ISP_IOMEM_MAIN,
+				ISP_IRQ0ENABLE);
+		break;
 	default:
 		break;
 	}
@@ -996,6 +1003,11 @@ static irqreturn_t omap34xx_isp_isr(int irq, void *_isp)
 			if (!ispresizer_busy())
 				ispresizer_config_shadow_registers();
 			isp_buf_process(bufs);
+		} else {
+			if (irqdis->isp_callbk[CBK_RESZ_DONE])
+				irqdis->isp_callbk[CBK_RESZ_DONE](RESZ_DONE,
+						irqdis->isp_callbk_arg1[CBK_RESZ_DONE],
+						irqdis->isp_callbk_arg2[CBK_RESZ_DONE]);
 		}
 	}
 
diff --git a/drivers/media/video/isp/ispmmu.c b/drivers/media/video/isp/ispmmu.c
index 076aea1..b943d5b 100644
--- a/drivers/media/video/isp/ispmmu.c
+++ b/drivers/media/video/isp/ispmmu.c
@@ -289,6 +289,7 @@ int ispmmu_get_mapeable_space(void)
 	return (L2P_TABLE_NR - no_of_l2p_alloted) * ISPMMU_TTB_ENTRIES_NR *
 							ISPMMU_L2D_ENTRIES_NR;
 }
+EXPORT_SYMBOL_GPL(ispmmu_get_mapeable_space);
 
 /**
  * ispmmu_map - Map a physically contiguous buffer to ISP space.
diff --git a/drivers/media/video/isp/omap_previewer.c b/drivers/media/video/isp/omap_previewer.c
new file mode 100644
index 0000000..634a056
--- /dev/null
+++ b/drivers/media/video/isp/omap_previewer.c
@@ -0,0 +1,825 @@
+/*
+ * drivers/media/video/isp/omap_previewer.c
+ *
+ * Wrapper for Preview module in TI's OMAP3430 ISP
+ *
+ * Copyright (C) 2008 Texas Instruments, Inc.
+ *
+ * Contributors:
+ * 	Leonides Martinez <leonides.martinez@ti.com>
+ * 	Sergio Aguirre <saaguirre@ti.com>
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <linux/mutex.h>
+#include <linux/cdev.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <media/v4l2-dev.h>
+#include <asm/cacheflush.h>
+
+#include "isp.h"
+#include "ispmmu.h"
+#include "ispreg.h"
+#include "omap_previewer.h"
+
+#define OMAP_PREV_NAME		"omap-previewer"
+
+static int prev_major = -1;
+static struct device *prev_dev;
+static struct class *prev_class;
+static struct prev_device *prevdevice;
+static struct platform_driver omap_previewer_driver;
+
+static u32 prev_bufsize;
+
+/**
+ * prev_calculate_crop - Calculate crop size according to device parameters
+ * @device: Structure containing ISP preview wrapper global information
+ * @crop: Structure containing crop size
+ *
+ * This function is used to calculate frame size reduction depending on
+ * the features enabled by the application.
+ **/
+static void prev_calculate_crop(struct prev_device *device,
+						struct prev_cropsize *crop)
+{
+	dev_dbg(prev_dev, "prev_calculate_crop E\n");
+
+	if (!device || !crop) {
+		dev_err(prev_dev, "\nErron in argument");
+		return;
+	}
+
+	isppreview_try_size(device->params->size_params.hsize,
+					device->params->size_params.vsize,
+					&crop->hcrop, &crop->vcrop);
+	crop->hcrop &= PREV_16PIX_ALIGN_MASK;
+	dev_dbg(prev_dev, "prev_calculate_crop L\n");
+}
+
+/**
+ * prev_get_status - Get status of ISP preview module
+ * @status: Structure containing the busy state.
+ *
+ * Checks if the ISP preview module is busy.
+ *
+ * Returns 0 if successful, or -EINVAL if the status parameter is invalid.
+ **/
+static int prev_get_status(struct prev_status *status)
+{
+	if (!status) {
+		dev_err(prev_dev, "get_status: invalid parameter\n");
+		return -EINVAL;
+	}
+	status->hw_busy = (char)isppreview_busy();
+	return 0;
+}
+
+/**
+ * prev_hw_setup - Stores the desired configuration in the proper HW registers
+ * @config: Structure containing the desired configuration for ISP preview
+ *          module.
+ *
+ * Reads the structure sent, and modifies the desired registers.
+ *
+ * Always returns 0.
+ **/
+static int prev_hw_setup(struct prev_params *config)
+{
+	dev_dbg(prev_dev, "prev_hw_setup E\n");
+
+	if (config->features & PREV_AVERAGER)
+		isppreview_config_averager(config->average);
+	else
+		isppreview_config_averager(0);
+
+	if (config->features & PREV_INVERSE_ALAW)
+		isppreview_enable_invalaw(1);
+	else
+		isppreview_enable_invalaw(0);
+
+	if (config->features & PREV_HORZ_MEDIAN_FILTER) {
+		isppreview_config_hmed(config->hmf_params);
+		isppreview_enable_hmed(1);
+	} else
+		isppreview_enable_hmed(0);
+
+	if (config->features & PREV_DARK_FRAME_SUBTRACT) {
+		isppreview_set_darkaddr(config->drkf_params.addr);
+		isppreview_config_darklineoffset(config->drkf_params.offset);
+		isppreview_enable_drkframe(1);
+	} else
+		isppreview_enable_drkframe(0);
+
+	if (config->features & PREV_LENS_SHADING) {
+		isppreview_config_drkf_shadcomp(config->lens_shading_shift);
+		isppreview_enable_shadcomp(1);
+	} else
+		isppreview_enable_shadcomp(0);
+
+	dev_dbg(prev_dev, "prev_hw_setup L\n");
+	return 0;
+}
+
+/**
+ * prev_validate_params - Validate configuration parameters for Preview Wrapper
+ * @params: Structure containing configuration parameters
+ *
+ * Validate configuration parameters for Preview Wrapper
+ *
+ * Returns 0 if successful, or -EINVAL if a parameter value is invalid.
+ **/
+static int prev_validate_params(struct prev_params *params)
+{
+	if (!params) {
+		dev_err(prev_dev, "validate_params: error in argument");
+		goto err_einval;
+	}
+
+	if ((params->features & PREV_AVERAGER) == PREV_AVERAGER) {
+		if ((params->average != NO_AVE)
+					&& (params->average != AVE_2_PIX)
+					&& (params->average != AVE_4_PIX)
+					&& (params->average != AVE_8_PIX)) {
+			dev_err(prev_dev, "validate_params: wrong pix "
+								"average\n");
+			goto err_einval;
+		} else if (((params->average == AVE_2_PIX)
+					&& (params->size_params.hsize % 2))
+					|| ((params->average == AVE_4_PIX)
+					&& (params->size_params.hsize % 4))
+					|| ((params->average == AVE_8_PIX)
+					&& (params->size_params.hsize % 8))) {
+			dev_err(prev_dev, "validate_params: "
+					"wrong pix average for input size\n");
+			goto err_einval;
+		}
+	}
+
+	if ((params->size_params.pixsize != PREV_INWIDTH_8BIT)
+					&& (params->size_params.pixsize
+					!= PREV_INWIDTH_10BIT)) {
+		dev_err(prev_dev, "validate_params: wrong pixsize\n");
+		goto err_einval;
+	}
+
+	if (params->size_params.hsize > MAX_IMAGE_WIDTH
+					|| params->size_params.hsize < 0) {
+		dev_err(prev_dev, "validate_params: wrong hsize\n");
+		goto err_einval;
+	}
+
+	if ((params->pix_fmt != YCPOS_YCrYCb)
+					&& (YCPOS_YCbYCr != params->pix_fmt)
+					&& (YCPOS_CbYCrY != params->pix_fmt)
+					&& (YCPOS_CrYCbY != params->pix_fmt)) {
+		dev_err(prev_dev, "validate_params: wrong pix_fmt");
+		goto err_einval;
+	}
+
+	if ((params->features & PREV_DARK_FRAME_SUBTRACT)
+						&& (params->features
+						& PREV_DARK_FRAME_CAPTURE)) {
+		dev_err(prev_dev, "validate_params: DARK FRAME CAPTURE and "
+						"SUBSTRACT cannot be enabled "
+						"at same time\n");
+		goto err_einval;
+	}
+
+	if (params->features & PREV_DARK_FRAME_SUBTRACT)
+		if (!params->drkf_params.addr
+					|| (params->drkf_params.offset % 32)) {
+			dev_err(prev_dev, "validate_params: dark frame "
+								"address\n");
+			goto err_einval;
+		}
+
+	if (params->features & PREV_LENS_SHADING)
+		if ((params->lens_shading_shift > 7)
+					|| !params->drkf_params.addr
+					|| (params->drkf_params.offset % 32)) {
+			dev_err(prev_dev, "validate_params: lens shading "
+								"shift\n");
+			goto err_einval;
+		}
+
+	if ((params->size_params.in_pitch <= 0)
+				|| (params->size_params.in_pitch % 32)) {
+		params->size_params.in_pitch =
+				(params->size_params.hsize * 2) & 0xFFE0;
+		dev_err(prev_dev, "\nError in in_pitch; new value = %d",
+						params->size_params.in_pitch);
+	}
+
+	return 0;
+err_einval:
+	return -EINVAL;
+}
+
+/**
+ * preview_isr - Callback from ISP driver for ISP Preview Interrupt
+ * @status: ISP IRQ0STATUS register value
+ * @arg1: Structure containing ISP preview wrapper global information
+ * @arg2: Currently not used
+ **/
+static void preview_isr(unsigned long status, isp_vbq_callback_ptr arg1,
+								void *arg2)
+{
+	struct prev_device *device = (struct prev_device *)arg1;
+
+	if ((status & PREV_DONE) != PREV_DONE)
+		return;
+
+	if (device)
+		complete(&device->wfc);
+}
+
+/**
+ * prev_do_preview - Performs the Preview process
+ * @device: Structure containing ISP preview wrapper global information
+ * @arg: Currently not used
+ *
+ * Returns 0 if successful, or -EINVAL if the sent parameters are invalid.
+ **/
+static int prev_do_preview(struct prev_device *device, int *arg)
+{
+	int bpp, size;
+	int ret = 0;
+	u32 out_hsize, out_vsize, out_line_offset;
+
+	dev_dbg(prev_dev, "prev_do_preview E\n");
+
+	if (!device) {
+		dev_err(prev_dev, "preview: invalid parameters\n");
+		return -EINVAL;
+	}
+
+	if (device->params->size_params.pixsize == PREV_INWIDTH_8BIT)
+		bpp = 1;
+	else
+		bpp = 2;
+
+	size = device->params->size_params.hsize *
+		device->params->size_params.vsize * bpp;
+
+	ret = isppreview_set_inaddr(device->isp_addr_read);
+	if (ret)
+		goto out;
+
+	ret = isppreview_set_outaddr(device->isp_addr_read);
+	if (ret)
+		goto out;
+
+	isppreview_try_size(device->params->size_params.hsize,
+					device->params->size_params.vsize,
+					&out_hsize, &out_vsize);
+
+	ret = isppreview_config_inlineoffset(device->params->size_params.hsize
+						* bpp);
+	if (ret)
+		goto out;
+
+	out_line_offset = (out_hsize * bpp) & PREV_32BYTES_ALIGN_MASK;
+
+	ret = isppreview_config_outlineoffset(out_line_offset);
+	if (ret)
+		goto out;
+
+	ret = isppreview_config_size(device->params->size_params.hsize,
+					device->params->size_params.vsize,
+					out_hsize, out_vsize);
+	if (ret)
+		goto out;
+
+	isppreview_config_datapath(PRV_RAW_MEM, PREVIEW_MEM);
+
+	ret = isp_set_callback(CBK_PREV_DONE, preview_isr, (void *)device,
+								(void *)NULL);
+	if (ret) {
+		dev_err(prev_dev, "ERROR while setting Previewer callback!\n");
+		goto out;
+	}
+	isppreview_enable(1);
+
+	wait_for_completion_interruptible(&device->wfc);
+
+	if (device->isp_addr_read) {
+		ispmmu_vunmap(device->isp_addr_read);
+		device->isp_addr_read = 0;
+	}
+
+	ret = isp_unset_callback(CBK_PREV_DONE);
+
+	dev_dbg(prev_dev, "prev_do_preview L\n");
+out:
+	return ret;
+}
+
+/**
+ * previewer_vbq_release - Videobuffer queue release
+ * @q: Structure containing the videobuffer queue.
+ * @vb: Structure containing the videobuffer used for previewer processing.
+ **/
+static void previewer_vbq_release(struct videobuf_queue *q,
+						struct videobuf_buffer *vb)
+{
+	struct prev_fh *fh = q->priv_data;
+	struct prev_device *device = fh->device;
+
+	ispmmu_vunmap(device->isp_addr_read);
+	device->isp_addr_read = 0;
+	spin_lock(&device->vbq_lock);
+	vb->state = VIDEOBUF_NEEDS_INIT;
+	spin_unlock(&device->vbq_lock);
+	dev_dbg(prev_dev, "previewer_vbq_release\n");
+}
+
+/**
+ * previewer_vbq_setup - Sets up the videobuffer size and validates count.
+ * @q: Structure containing the videobuffer queue.
+ * @cnt: Number of buffers requested
+ * @size: Size in bytes of the buffer used for previewing
+ *
+ * Always returns 0.
+ **/
+static int previewer_vbq_setup(struct videobuf_queue *q,
+							unsigned int *cnt,
+							unsigned int *size)
+{
+	struct prev_fh *fh = q->priv_data;
+	struct prev_device *device = fh->device;
+	u32 bpp = 1;
+
+	spin_lock(&device->vbq_lock);
+	if (*cnt <= 0)
+		*cnt = VIDEO_MAX_FRAME;
+
+	if (*cnt > VIDEO_MAX_FRAME)
+		*cnt = VIDEO_MAX_FRAME;
+
+	if (!device->params->size_params.hsize ||
+		!device->params->size_params.vsize) {
+		dev_err(prev_dev, "Can't setup buffer size\n");
+		spin_unlock(&device->vbq_lock);
+		return -EINVAL;
+	}
+
+	if (device->params->size_params.pixsize == PREV_INWIDTH_10BIT)
+		bpp = 2;
+	*size = prev_bufsize = bpp * device->params->size_params.hsize
+					* device->params->size_params.vsize;
+	spin_unlock(&device->vbq_lock);
+	dev_dbg(prev_dev, "previewer_vbq_setup\n");
+	return 0;
+}
+
+/**
+ * previewer_vbq_prepare - Videobuffer is prepared and mmapped.
+ * @q: Structure containing the videobuffer queue.
+ * @vb: Structure containing the videobuffer used for previewer processing.
+ * @field: Type of field to set in videobuffer device.
+ *
+ * Returns 0 if successful, or -EINVAL if buffer couldn't get allocated, or
+ * -EIO if the ISP MMU mapping fails
+ **/
+static int previewer_vbq_prepare(struct videobuf_queue *q,
+						struct videobuf_buffer *vb,
+						enum v4l2_field field)
+{
+	struct prev_fh *fh = q->priv_data;
+	struct prev_device *device = fh->device;
+	int err = -EINVAL;
+	unsigned int isp_addr;
+	struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
+
+	dev_dbg(prev_dev, "previewer_vbq_prepare E\n");
+	spin_lock(&device->vbq_lock);
+	if (vb->baddr) {
+		vb->size = prev_bufsize;
+		vb->bsize = prev_bufsize;
+	} else {
+		spin_unlock(&device->vbq_lock);
+		dev_err(prev_dev, "No user buffer allocated\n");
+		goto out;
+	}
+
+	vb->width = device->params->size_params.hsize;
+	vb->height = device->params->size_params.vsize;
+	vb->field = field;
+	spin_unlock(&device->vbq_lock);
+
+	if (vb->state == VIDEOBUF_NEEDS_INIT) {
+		err = videobuf_iolock(q, vb, NULL);
+		if (!err) {
+			isp_addr = ispmmu_vmap(dma->sglist, dma->sglen);
+			if (!isp_addr)
+				err = -EIO;
+			else
+				device->isp_addr_read = isp_addr;
+		}
+	}
+
+	if (!err) {
+		vb->state = VIDEOBUF_PREPARED;
+		flush_cache_user_range(NULL, vb->baddr,
+					(vb->baddr + vb->bsize));
+	} else
+		previewer_vbq_release(q, vb);
+
+	dev_dbg(prev_dev, "previewer_vbq_prepare L\n");
+out:
+	return err;
+}
+
+static void previewer_vbq_queue(struct videobuf_queue *q,
+						struct videobuf_buffer *vb)
+{
+	return;
+}
+
+/**
+ * previewer_open - Initializes and opens the Preview Wrapper
+ * @inode: Inode structure associated with the Preview Wrapper
+ * @filp: File structure associated with the Preview Wrapper
+ *
+ * Returns 0 if successful, -EACCES if its unable to initialize default config,
+ * -EBUSY if its already opened or the ISP module is not available, or -ENOMEM
+ * if its unable to allocate the device in kernel space memory.
+ **/
+static int previewer_open(struct inode *inode, struct file *filp)
+{
+	int ret = 0;
+	struct prev_device *device = prevdevice;
+	struct prev_params *config = isppreview_get_config();
+	struct prev_fh *fh;
+
+	if (config == NULL) {
+		dev_err(prev_dev, "Unable to initialize default config "
+			"from isppreviewer\n\n");
+		return -EACCES;
+	}
+
+	if (device->opened || (filp->f_flags & O_NONBLOCK)) {
+		dev_err(prev_dev, "previewer_open: device is already "
+								"opened\n");
+		return -EBUSY;
+	}
+
+	fh = kzalloc(sizeof(struct prev_fh), GFP_KERNEL);
+	if (NULL == fh)
+		return -ENOMEM;
+
+	isp_get();
+	ret = isppreview_request();
+	if (ret) {
+		isp_put();
+		dev_err(prev_dev, "Can't acquire isppreview\n");
+		return ret;
+	}
+
+	device->params = config;
+	device->opened = 1;
+
+	filp->private_data = fh;
+	fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	fh->device = device;
+
+	videobuf_queue_sg_init(&fh->vbq, &device->vbq_ops, NULL,
+					&device->vbq_lock, fh->type,
+					V4L2_FIELD_NONE,
+					sizeof(struct videobuf_buffer), fh);
+
+	init_completion(&device->wfc);
+	device->wfc.done = 0;
+	mutex_init(&device->prevwrap_mutex);
+
+	return 0;
+}
+
+/**
+ * previewer_release - Releases Preview Wrapper and frees up allocated memory
+ * @inode: Inode structure associated with the Preview Wrapper
+ * @filp: File structure associated with the Preview Wrapper
+ *
+ * Always returns 0.
+ **/
+static int previewer_release(struct inode *inode, struct file *filp)
+{
+	struct prev_fh *fh = filp->private_data;
+	struct prev_device *device = fh->device;
+	struct videobuf_queue *q = &fh->vbq;
+
+	device->opened = 0;
+	device->params = NULL;
+	isppreview_free();
+	videobuf_mmap_free(q);
+	isp_put();
+	prev_bufsize = 0;
+	filp->private_data = NULL;
+	kfree(fh);
+
+	dev_dbg(prev_dev, "previewer_release\n");
+	return 0;
+}
+
+/**
+ * previewer_mmap - Memory maps the Preview Wrapper module.
+ * @file: File structure associated with the Preview Wrapper
+ * @vma: Virtual memory area structure.
+ *
+ * Returns 0 if successful, or returned value by the videobuf_mmap_mapper()
+ * function.
+ **/
+static int previewer_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct prev_fh *fh = file->private_data;
+	dev_dbg(prev_dev, "previewer_mmap\n");
+
+	return videobuf_mmap_mapper(&fh->vbq, vma);
+}
+
+/**
+ * previewer_ioctl - I/O control function for Preview Wrapper
+ * @inode: Inode structure associated with the Preview Wrapper.
+ * @file: File structure associated with the Preview Wrapper.
+ * @cmd: Type of command to execute.
+ * @arg: Argument to send to requested command.
+ *
+ * Returns 0 if successful, -1 if bad command passed or access is denied,
+ * -EFAULT if copy_from_user() or copy_to_user() fails, -EINVAL if parameter
+ * validation fails or parameter structure is not present
+ **/
+static int previewer_ioctl(struct inode *inode, struct file *file,
+					unsigned int cmd, unsigned long arg)
+{
+	int ret = 0;
+	struct prev_params params;
+	struct prev_fh *fh = file->private_data;
+	struct prev_device *device = fh->device;
+
+	dev_dbg(prev_dev, "Entering previewer_ioctl()\n");
+
+	if ((_IOC_TYPE(cmd) != PREV_IOC_BASE)
+					|| (_IOC_NR(cmd) > PREV_IOC_MAXNR)) {
+		dev_err(prev_dev, "Bad command Value \n");
+		goto err_minusone;
+	}
+
+	if (_IOC_DIR(cmd) & _IOC_READ)
+		ret = !access_ok(VERIFY_WRITE, (void *)arg, _IOC_SIZE(cmd));
+	else if (_IOC_DIR(cmd) & _IOC_WRITE)
+		ret = !access_ok(VERIFY_READ, (void *)arg, _IOC_SIZE(cmd));
+	if (ret) {
+		dev_err(prev_dev, "access denied\n");
+		goto err_minusone;
+	}
+
+	switch (cmd) {
+	case PREV_REQBUF:
+		if (mutex_lock_interruptible(&device->prevwrap_mutex))
+			goto err_eintr;
+		ret = videobuf_reqbufs(&fh->vbq, (void *)arg);
+		mutex_unlock(&device->prevwrap_mutex);
+		break;
+
+	case PREV_QUERYBUF:
+		if (mutex_lock_interruptible(&device->prevwrap_mutex))
+			goto err_eintr;
+		ret = videobuf_querybuf(&fh->vbq, (void *)arg);
+		mutex_unlock(&device->prevwrap_mutex);
+		break;
+
+	case PREV_QUEUEBUF:
+		if (mutex_lock_interruptible(&device->prevwrap_mutex))
+			goto err_eintr;
+		ret = videobuf_qbuf(&fh->vbq, (void *)arg);
+		mutex_unlock(&device->prevwrap_mutex);
+		break;
+
+	case PREV_SET_PARAM:
+		if (mutex_lock_interruptible(&device->prevwrap_mutex))
+			goto err_eintr;
+		if (copy_from_user(&params, (struct prev_params *)arg,
+						sizeof(struct prev_params))) {
+			mutex_unlock(&device->prevwrap_mutex);
+			return -EFAULT;
+		}
+		ret = prev_validate_params(&params);
+		if (ret < 0) {
+			dev_err(prev_dev, "Error validating parameters!\n");
+			mutex_unlock(&device->prevwrap_mutex);
+			goto out;
+		}
+		if (device->params)
+			memcpy(device->params, &params,
+						sizeof(struct prev_params));
+		else {
+			mutex_unlock(&device->prevwrap_mutex);
+			return -EINVAL;
+		}
+
+		ret = prev_hw_setup(device->params);
+		mutex_unlock(&device->prevwrap_mutex);
+		break;
+
+	case PREV_GET_PARAM:
+		if (copy_to_user((struct prev_params *)arg, device->params,
+						sizeof(struct prev_params)))
+			ret = -EFAULT;
+		break;
+
+	case PREV_GET_STATUS:
+		ret = prev_get_status((struct prev_status *)arg);
+		break;
+
+	case PREV_PREVIEW:
+		if (mutex_lock_interruptible(&device->prevwrap_mutex))
+			goto err_eintr;
+		ret = prev_do_preview(device, (int *)arg);
+		mutex_unlock(&device->prevwrap_mutex);
+		break;
+
+	case PREV_GET_CROPSIZE:
+		{
+		struct prev_cropsize outputsize;
+		prev_calculate_crop(device, &outputsize);
+		if (copy_to_user((struct prev_cropsize *)arg, &outputsize,
+						sizeof(struct prev_cropsize)))
+			ret = -EFAULT;
+		}
+		break;
+
+	default:
+		dev_err(prev_dev, "previewer_ioctl: Invalid Command Value\n");
+		ret = -EINVAL;
+	}
+out:
+	return ret;
+err_minusone:
+	return -1;
+err_eintr:
+	return -EINTR;
+}
+
+/**
+ * previewer_platform_release - Acts when Reference count is zero
+ * @device: Structure containing ISP preview wrapper global information
+ *
+ * This is called when the reference count goes to zero
+ **/
+static void previewer_platform_release(struct device *device)
+{
+	dev_dbg(prev_dev, "previewer_platform_release()\n");
+}
+
+static struct file_operations prev_fops = {
+	.owner = THIS_MODULE,
+	.open = previewer_open,
+	.release = previewer_release,
+	.mmap = previewer_mmap,
+	.ioctl = previewer_ioctl,
+};
+
+static struct platform_device omap_previewer_device = {
+	.name = OMAP_PREV_NAME,
+	.id = -1,
+	.dev = {
+		.release = previewer_platform_release,
+	}
+};
+
+/**
+ * previewer_probe - Checks for device presence
+ * @pdev: Structure containing details of the current device.
+ *
+ * Always returns 0
+ **/
+static int __init previewer_probe(struct platform_device *pdev)
+{
+	return 0;
+}
+
+/**
+ * previewer_remove - Handles the removal of the driver
+ * @pdev: Structure containing details of the current device.
+ *
+ * Always returns 0.
+ **/
+static int previewer_remove(struct platform_device *pdev)
+{
+	dev_dbg(prev_dev, "previewer_remove()\n");
+
+	platform_device_unregister(&omap_previewer_device);
+	platform_driver_unregister(&omap_previewer_driver);
+	unregister_chrdev(prev_major, OMAP_PREV_NAME);
+	return 0;
+}
+
+static struct platform_driver omap_previewer_driver = {
+	.probe = previewer_probe,
+	.remove = previewer_remove,
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = OMAP_PREV_NAME,
+	},
+};
+
+/**
+ * omap_previewer_init - Initialization of Preview Wrapper
+ *
+ * Returns 0 if successful, -ENOMEM if could not allocate memory, -ENODEV if
+ * could not register the wrapper as a character device, or other errors if the
+ * device or driver can't register.
+ **/
+static int __init omap_previewer_init(void)
+{
+	int ret;
+	struct prev_device *device;
+
+	device = kzalloc(sizeof(struct prev_device), GFP_KERNEL);
+	if (!device) {
+		dev_err(prev_dev, OMAP_PREV_NAME ": could not allocate"
+								" memory\n");
+		return -ENOMEM;
+	}
+	prev_major = register_chrdev(0, OMAP_PREV_NAME, &prev_fops);
+
+	if (prev_major < 0) {
+		dev_err(prev_dev, OMAP_PREV_NAME ": initialization "
+				"failed. could not register character "
+				"device\n");
+		return -ENODEV;
+	}
+
+	ret = platform_driver_register(&omap_previewer_driver);
+	if (ret) {
+		dev_err(prev_dev, OMAP_PREV_NAME
+			": failed to register platform driver!\n");
+		goto fail2;
+	}
+	ret = platform_device_register(&omap_previewer_device);
+	if (ret) {
+		dev_err(prev_dev, OMAP_PREV_NAME
+			": failed to register platform device!\n");
+		goto fail3;
+	}
+
+	prev_class = class_create(THIS_MODULE, OMAP_PREV_NAME);
+	if (!prev_class)
+		goto fail4;
+
+	prev_dev = device_create(prev_class, prev_dev,
+						(MKDEV(prev_major, 0)), NULL,
+						OMAP_PREV_NAME);
+	dev_dbg(prev_dev, OMAP_PREV_NAME ": Registered Previewer Wrapper\n");
+	device->opened = 0;
+
+	device->vbq_ops.buf_setup = previewer_vbq_setup;
+	device->vbq_ops.buf_prepare = previewer_vbq_prepare;
+	device->vbq_ops.buf_release = previewer_vbq_release;
+	device->vbq_ops.buf_queue = previewer_vbq_queue;
+	spin_lock_init(&device->vbq_lock);
+
+	prevdevice = device;
+	return 0;
+
+fail4:
+	platform_device_unregister(&omap_previewer_device);
+fail3:
+	platform_driver_unregister(&omap_previewer_driver);
+fail2:
+	unregister_chrdev(prev_major, OMAP_PREV_NAME);
+
+	return ret;
+}
+
+/**
+ * omap_previewer_exit - Close of Preview Wrapper
+ **/
+static void __exit omap_previewer_exit(void)
+{
+	previewer_remove(&omap_previewer_device);
+	kfree(prevdevice);
+	prev_major = -1;
+}
+
+module_init(omap_previewer_init);
+module_exit(omap_previewer_exit);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("OMAP ISP Previewer");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/video/isp/omap_previewer.h b/drivers/media/video/isp/omap_previewer.h
new file mode 100644
index 0000000..0bb31cd
--- /dev/null
+++ b/drivers/media/video/isp/omap_previewer.h
@@ -0,0 +1,162 @@
+/*
+ * drivers/media/video/isp/omap_previewer.h
+ *
+ * Header file for Preview module wrapper in TI's OMAP3430 ISP
+ *
+ * Copyright (C) 2008 Texas Instruments, Inc.
+ *
+ * Contributors:
+ * 	Leonides Martinez <leonides.martinez@ti.com>
+ * 	Sergio Aguirre <saaguirre@ti.com>
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include "isppreview.h"
+
+#ifndef OMAP_ISP_PREVIEW_WRAP_H
+#define OMAP_ISP_PREVIEW_WRAP_H
+
+#define PREV_IOC_BASE			'P'
+#define PREV_REQBUF			_IOWR(PREV_IOC_BASE, 1,\
+						struct v4l2_requestbuffers)
+#define PREV_QUERYBUF			_IOWR(PREV_IOC_BASE, 2,\
+							struct v4l2_buffer)
+#define PREV_SET_PARAM			_IOW(PREV_IOC_BASE, 3,\
+							struct prev_params)
+#define PREV_GET_PARAM			_IOWR(PREV_IOC_BASE, 4,\
+							struct prev_params)
+#define PREV_PREVIEW			_IOR(PREV_IOC_BASE, 5, int)
+#define PREV_GET_STATUS			_IOR(PREV_IOC_BASE, 6, char)
+#define PREV_GET_CROPSIZE		_IOR(PREV_IOC_BASE, 7,\
+							struct prev_cropsize)
+#define PREV_QUEUEBUF			_IOWR(PREV_IOC_BASE, 8,\
+							struct v4l2_buffer)
+#define PREV_IOC_MAXNR			8
+
+#define LUMA_TABLE_SIZE			128
+#define GAMMA_TABLE_SIZE		1024
+#define CFA_COEFF_TABLE_SIZE		576
+#define NOISE_FILTER_TABLE_SIZE		256
+
+#define MAX_IMAGE_WIDTH			3300
+
+#define PREV_INWIDTH_8BIT		0	/* pixel width of 8 bits */
+#define PREV_INWIDTH_10BIT		1	/* pixel width of 10 bits */
+
+#define PREV_32BYTES_ALIGN_MASK		0xFFFFFFE0
+#define PREV_16PIX_ALIGN_MASK		0xFFFFFFF0
+
+/**
+ * struct prev_rgbblending - Structure for RGB2RGB blending parameters
+ * @blending: Color correlation 3x3 matrix.
+ * @offset: Color correlation offsets.
+ */
+struct prev_rgbblending {
+	short blending[RGB_MAX][RGB_MAX];	/* color correlation 3x3
+						 * matrix.
+						 */
+	short offset[RGB_MAX];			/* color correlation offsets */
+};
+
+/**
+ * struct prev_cfa_coeffs - Structure for CFA coefficients
+ * @hthreshold: Horizontal threshold.
+ * @vthreshold: Vertical threshold.
+ * @coeffs: CFA coefficients
+ */
+struct prev_cfa_coeffs {
+	char hthreshold, vthreshold;
+	int coeffs[CFA_COEFF_TABLE_SIZE];
+};
+
+/**
+ * struct prev_gamma_coeffs - Structure for Gamma Coefficients
+ * @red: Table of gamma correction values for red color.
+ * @green: Table of gamma correction values for green color.
+ * @blue: Table of gamma correction values for blue color.
+ */
+struct prev_gamma_coeffs {
+	unsigned char red[GAMMA_TABLE_SIZE];
+	unsigned char green[GAMMA_TABLE_SIZE];
+	unsigned char blue[GAMMA_TABLE_SIZE];
+};
+
+/**
+ * struct prev_noiseflt_coeffs - Structure for Noise Filter Coefficients.
+ * @noise: Noise filter table.
+ * @strength: Used to find out weighted average.
+ */
+struct prev_noiseflt_coeffs {
+	unsigned char noise[NOISE_FILTER_TABLE_SIZE];
+	unsigned char strength;
+};
+
+/**
+ * struct prev_chroma_spr - Structure for Chroma Suppression.
+ * @hpfy: High passed version of Y or normal Y.
+ * @threshold: Threshold for chroma suppress.
+ * @gain: Chroma suppression gain
+ */
+struct prev_chroma_spr {
+	unsigned char hpfy;
+	char threshold;
+	unsigned char gain;
+};
+
+/**
+ * struct prev_status - Structure to know status of the hardware
+ * @hw_busy: Flag to indicate if Hardware is Busy.
+ */
+struct prev_status {
+	char hw_busy;
+};
+
+/**
+ * struct prev_cropsize - Structure to know crop size.
+ * @hcrop: Horizontal size of crop window.
+ * @vcrop: Vertical size of crop window.
+ */
+struct prev_cropsize {
+	int hcrop;
+	int vcrop;
+};
+
+/**
+ * struct prev_device - Global device information structure.
+ * @params: Pointer to structure containing preview parameters.
+ * @opened: State of the device.
+ * @wfc: Wait for completion. Used for locking operations.
+ * @prevwrap_mutex: Mutex for preview wrapper use.
+ * @vbq_lock: Spinlock for videobuf queues.
+ * @vbq_ops: Videobuf queue operations
+ * @isp_addr_read: Input/Output address
+ */
+struct prev_device {
+	struct prev_params *params;
+	unsigned char opened;
+	struct completion wfc;
+	struct mutex prevwrap_mutex; /* For generic internal use */
+	spinlock_t vbq_lock;	/* For videobuffer queue handling */
+	struct videobuf_queue_ops vbq_ops;
+	dma_addr_t isp_addr_read;
+};
+
+/**
+ * struct prev_fh - Per-filehandle data structure
+ * @type: Used buffer type.
+ * @vbq: Videobuffer queue.
+ * @device: Pointer to device information structure.
+ */
+struct prev_fh {
+	enum v4l2_buf_type type;
+	struct videobuf_queue vbq;
+	struct prev_device *device;
+};
+#endif
diff --git a/drivers/media/video/isp/omap_resizer.c b/drivers/media/video/isp/omap_resizer.c
new file mode 100644
index 0000000..54bc425
--- /dev/null
+++ b/drivers/media/video/isp/omap_resizer.c
@@ -0,0 +1,1634 @@
+/*
+ * drivers/media/video/isp/omap_resizer.c
+ *
+ * Wrapper for Resizer module in TI's OMAP3430 ISP
+ *
+ * Copyright (C) 2008 Texas Instruments, Inc.
+ *
+ * Contributors:
+ * 	Sergio Aguirre <saaguirre@ti.com>
+ * 	Troy Laramy <t-laramy@ti.com>
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <linux/mutex.h>
+#include <linux/cdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <media/v4l2-dev.h>
+#include <asm/cacheflush.h>
+
+#include "isp.h"
+#include "ispmmu.h"
+#include "ispreg.h"
+#include "ispresizer.h"
+#include <linux/omap_resizer.h>
+
+#define OMAP_REZR_NAME		"omap-resizer"
+
+/* Defines and Constants*/
+#define MAX_CHANNELS		16
+#define MAX_IMAGE_WIDTH		2047
+#define MAX_IMAGE_WIDTH_HIGH	2047
+#define ALIGNMENT		16
+#define CHANNEL_BUSY		1
+#define CHANNEL_FREE		0
+#define PIXEL_EVEN		2
+#define RATIO_MULTIPLIER	256
+/* Bit position Macro */
+/* macro for bit set and clear */
+#define BITSET(variable, bit)	((variable) | (1 << bit))
+#define BITRESET(variable, bit)	((variable) & ~(0x00000001 << (bit)))
+#define SET_BIT_INPUTRAM	28
+#define SET_BIT_CBLIN		29
+#define SET_BIT_INPTYP		27
+#define SET_BIT_YCPOS		26
+#define INPUT_RAM		1
+#define UP_RSZ_RATIO		64
+#define DOWN_RSZ_RATIO		512
+#define UP_RSZ_RATIO1		513
+#define DOWN_RSZ_RATIO1		1024
+#define RSZ_IN_SIZE_VERT_SHIFT	16
+#define MAX_HORZ_PIXEL_8BIT	31
+#define MAX_HORZ_PIXEL_16BIT	15
+#define NUM_PHASES		8
+#define NUM_TAPS		4
+#define NUM_D2PH		4	/* for downsampling * 2+x ~ 4x,
+					 * number of phases
+					 */
+#define NUM_D2TAPS		7 	/* for downsampling * 2+x ~ 4x,
+					 * number of taps
+					 */
+#define ALIGN32			32
+#define MAX_COEF_COUNTER	16
+#define COEFF_ADDRESS_OFFSET	0x04
+
+/* Global structure which contains information about number of channels
+   and protection variables */
+struct device_params {
+
+	unsigned char opened;			/* state of the device */
+	struct completion compl_isr;		/* Completion for interrupt */
+	struct mutex reszwrap_mutex;		/* Semaphore for array */
+
+	struct videobuf_queue_ops vbq_ops;	/* videobuf queue operations */
+};
+
+/* Register mapped structure which contains the every register
+   information */
+struct resizer_config {
+	u32 rsz_pcr;				/* pcr register mapping
+						 * variable.
+						 */
+	u32 rsz_in_start;			/* in_start register mapping
+						 * variable.
+						 */
+	u32 rsz_in_size;			/* in_size register mapping
+						 * variable.
+						 */
+	u32 rsz_out_size;			/* out_size register mapping
+						 * variable.
+						 */
+	u32 rsz_cnt;				/* rsz_cnt register mapping
+						 * variable.
+						 */
+	u32 rsz_sdr_inadd;			/* sdr_inadd register mapping
+						 * variable.
+						 */
+	u32 rsz_sdr_inoff;			/* sdr_inoff register mapping
+						 * variable.
+						 */
+	u32 rsz_sdr_outadd;			/* sdr_outadd register mapping
+						 * variable.
+						 */
+	u32 rsz_sdr_outoff;			/* sdr_outbuff register
+						 * mapping variable.
+						 */
+	u32 rsz_coeff_horz[16];			/* horizontal coefficients
+						 * mapping array.
+						 */
+	u32 rsz_coeff_vert[16];			/* vertical coefficients
+						 * mapping array.
+						 */
+	u32 rsz_yehn;				/* yehn(luma)register mapping
+						 * variable.
+						 */
+};
+
+struct rsz_mult {
+	int in_hsize;				/* input frame horizontal
+						 * size.
+						 */
+	int in_vsize;				/* input frame vertical size.
+						 */
+	int out_hsize;				/* output frame horizontal
+						 * size.
+						 */
+	int out_vsize;				/* output frame vertical
+						 * size.
+						 */
+	int in_pitch;				/* offset between two rows of
+						 * input frame.
+						 */
+	int out_pitch;				/* offset between two rows of
+						 * output frame.
+						 */
+	int end_hsize;
+	int end_vsize;
+	int num_htap;				/* 0 = 7tap; 1 = 4tap */
+	int num_vtap;				/* 0 = 7tap; 1 = 4tap */
+	int active;
+	int inptyp;
+	int vrsz;
+	int hrsz;
+	int hstph;				/* for specifying horizontal
+						 * starting phase.
+						 */
+	int vstph;
+	int pix_fmt;				/* # defined, UYVY or YUYV. */
+	int cbilin;				/* # defined, filter with luma
+						 * or bi-linear.
+						 */
+	u16 tap4filt_coeffs[32];		/* horizontal filter
+						 * coefficients.
+						 */
+	u16 tap7filt_coeffs[32];		/* vertical filter
+						 * coefficients.
+						 */
+};
+/* Channel specific structure contains information regarding
+   the every channel */
+struct channel_config {
+	struct resizer_config register_config;	/* Instance of register set
+						 * mapping structure
+						 */
+	int status;				/* Specifies whether the
+						 * channel is busy or not
+						 */
+	struct mutex chanprotection_mutex;
+	enum config_done config_state;
+	u8 input_buf_index;
+	u8 output_buf_index;
+
+};
+
+/* per-filehandle data structure */
+struct rsz_fh {
+	struct rsz_params *params;
+	struct channel_config *config;
+	struct rsz_mult *multipass;		/* Multipass to support
+						 * resizing ration outside
+						 * of 0.25x to 4x
+						 */
+	spinlock_t vbq_lock;			/* spinlock for videobuf
+						 * queues.
+						 */
+	enum v4l2_buf_type type;
+	struct videobuf_queue vbq;
+	struct device_params *device;
+
+	dma_addr_t isp_addr_read;		/* Input/Output address */
+	dma_addr_t isp_addr_write;		/* Input/Output address */
+	u32 rsz_bufsize;			/* channel specific buffersize
+						 */
+};
+
+static struct device_params *device_config;
+static struct device *rsz_device;
+static int rsz_major = -1;
+/* functions declaration */
+static void rsz_hardware_setup(struct channel_config *rsz_conf_chan);
+static int rsz_set_params(struct rsz_mult *multipass, struct rsz_params *,
+						struct channel_config *);
+static int rsz_get_params(struct rsz_params *, struct channel_config *);
+static void rsz_copy_data(struct rsz_mult *multipass,
+						struct rsz_params *params);
+static void rsz_isr(unsigned long status, isp_vbq_callback_ptr arg1,
+						void *arg2);
+static void rsz_calculate_crop(struct channel_config *rsz_conf_chan,
+					struct rsz_cropsize *cropsize);
+static int rsz_set_multipass(struct rsz_mult *multipass,
+					struct channel_config *rsz_conf_chan);
+static int rsz_set_ratio(struct rsz_mult *multipass,
+					struct channel_config *rsz_conf_chan);
+static void rsz_config_ratio(struct rsz_mult *multipass,
+					struct channel_config *rsz_conf_chan);
+
+/**
+ * rsz_hardware_setup - Sets hardware configuration registers
+ * @rsz_conf_chan: Structure containing channel configuration
+ *
+ * Set hardware configuration registers
+ **/
+static void rsz_hardware_setup(struct channel_config *rsz_conf_chan)
+{
+	int coeffcounter;
+	int coeffoffset = 0;
+
+	omap_writel(rsz_conf_chan->register_config.rsz_cnt,
+					OMAP3ISP_RESZ_REG(ISPRSZ_CNT));
+
+	omap_writel(rsz_conf_chan->register_config.rsz_in_start,
+					OMAP3ISP_RESZ_REG(ISPRSZ_IN_START));
+	omap_writel(rsz_conf_chan->register_config.rsz_in_size,
+					OMAP3ISP_RESZ_REG(ISPRSZ_IN_SIZE));
+
+	omap_writel(rsz_conf_chan->register_config.rsz_out_size,
+					OMAP3ISP_RESZ_REG(ISPRSZ_OUT_SIZE));
+	omap_writel(rsz_conf_chan->register_config.rsz_sdr_inadd,
+					OMAP3ISP_RESZ_REG(ISPRSZ_SDR_INADD));
+	omap_writel(rsz_conf_chan->register_config.rsz_sdr_inoff,
+					OMAP3ISP_RESZ_REG(ISPRSZ_SDR_INOFF));
+	omap_writel(rsz_conf_chan->register_config.rsz_sdr_outadd,
+					OMAP3ISP_RESZ_REG(ISPRSZ_SDR_OUTADD));
+	omap_writel(rsz_conf_chan->register_config.rsz_sdr_outoff,
+					OMAP3ISP_RESZ_REG(ISPRSZ_SDR_OUTOFF));
+	omap_writel(rsz_conf_chan->register_config.rsz_yehn, OMAP3ISP_RESZ_REG(ISPRSZ_YENH));
+
+	for (coeffcounter = 0; coeffcounter < MAX_COEF_COUNTER;
+							coeffcounter++) {
+		omap_writel(rsz_conf_chan->register_config.
+					rsz_coeff_horz[coeffcounter],
+					OMAP3ISP_RESZ_REG(ISPRSZ_HFILT10
+						+ coeffoffset));
+
+		omap_writel(rsz_conf_chan->register_config.
+					rsz_coeff_vert[coeffcounter],
+					OMAP3ISP_RESZ_REG(ISPRSZ_VFILT10
+						+ coeffoffset));
+		coeffoffset = coeffoffset + COEFF_ADDRESS_OFFSET;
+	}
+}
+
+/**
+ * rsz_start - Enables Resizer Wrapper
+ * @arg: Currently not used.
+ * @device: Structure containing ISP resizer wrapper global information
+ *
+ * Submits a resizing task specified by the rsz_resize structure. The call can
+ * either be blocked until the task is completed or returned immediately based
+ * on the value of the blocking argument in the rsz_resize structure. If it is
+ * blocking, the status of the task can be checked by calling ioctl
+ * RSZ_G_STATUS. Only one task can be outstanding for each logical channel.
+ *
+ * Returns 0 if successful, or -EINVAL if could not set callback for RSZR IRQ
+ * event or the state of the channel is not configured.
+ **/
+int rsz_start(int *arg, struct rsz_fh *fh)
+{
+	struct channel_config *rsz_conf_chan = fh->config;
+	struct rsz_mult *multipass = fh->multipass;
+	struct videobuf_queue *q = &fh->vbq;
+	int ret;
+
+	if (rsz_conf_chan->config_state) {
+		dev_err(rsz_device, "State not configured \n");
+		goto err_einval;
+	}
+
+	rsz_conf_chan->status = CHANNEL_BUSY;
+
+	rsz_hardware_setup(rsz_conf_chan);
+
+	if (isp_set_callback(CBK_RESZ_DONE, rsz_isr, (void *) NULL,
+							(void *)NULL)) {
+		dev_err(rsz_device, "No callback for RSZR\n");
+		goto err_einval;
+	}
+mult:
+	device_config->compl_isr.done = 0;
+
+	ispresizer_enable(1);
+
+	ret = wait_for_completion_interruptible(&device_config->compl_isr);
+	if (ret != 0) {
+		dev_dbg(rsz_device, "Unexpected exit from "
+				"wait_for_completion_interruptible\n");
+		wait_for_completion(&device_config->compl_isr);
+	}
+
+	if (multipass->active) {
+		rsz_set_multipass(multipass, rsz_conf_chan);
+		goto mult;
+	}
+
+	if (fh->isp_addr_read) {
+		ispmmu_vunmap(fh->isp_addr_read);
+		fh->isp_addr_read = 0;
+	}
+	if (fh->isp_addr_write) {
+		ispmmu_vunmap(fh->isp_addr_write);
+		fh->isp_addr_write = 0;
+	}
+
+	rsz_conf_chan->status = CHANNEL_FREE;
+	q->bufs[rsz_conf_chan->input_buf_index]->state = VIDEOBUF_NEEDS_INIT;
+	q->bufs[rsz_conf_chan->output_buf_index]->state = VIDEOBUF_NEEDS_INIT;
+	rsz_conf_chan->register_config.rsz_sdr_outadd = 0;
+	rsz_conf_chan->register_config.rsz_sdr_inadd = 0;
+
+	/* Unmap and free the DMA memory allocated for buffers */
+	videobuf_dma_unmap(q, videobuf_to_dma(
+				q->bufs[rsz_conf_chan->input_buf_index]));
+	videobuf_dma_unmap(q, videobuf_to_dma(
+				q->bufs[rsz_conf_chan->output_buf_index]));
+	videobuf_dma_free(videobuf_to_dma(
+				q->bufs[rsz_conf_chan->input_buf_index]));
+	videobuf_dma_free(videobuf_to_dma(
+				q->bufs[rsz_conf_chan->output_buf_index]));
+
+	isp_unset_callback(CBK_RESZ_DONE);
+
+	return 0;
+err_einval:
+	return -EINVAL;
+}
+
+/**
+ * rsz_set_multipass - Set resizer multipass
+ * @rsz_conf_chan: Structure containing channel configuration
+ *
+ * Returns always 0
+ **/
+static int rsz_set_multipass(struct rsz_mult *multipass,
+			struct channel_config *rsz_conf_chan)
+{
+	multipass->in_hsize = multipass->out_hsize;
+	multipass->in_vsize = multipass->out_vsize;
+	multipass->out_hsize = multipass->end_hsize;
+	multipass->out_vsize = multipass->end_vsize;
+
+	multipass->out_pitch = (multipass->inptyp ? multipass->out_hsize
+						: (multipass->out_hsize * 2));
+	multipass->in_pitch = (multipass->inptyp ? multipass->in_hsize
+						: (multipass->in_hsize * 2));
+
+	rsz_set_ratio(multipass, rsz_conf_chan);
+	rsz_config_ratio(multipass, rsz_conf_chan);
+	rsz_hardware_setup(rsz_conf_chan);
+	return 0;
+}
+
+/**
+ * rsz_copy_data - Copy data
+ * @params: Structure containing the Resizer Wrapper parameters
+ *
+ * Copy data
+ **/
+static void rsz_copy_data(struct rsz_mult *multipass, struct rsz_params *params)
+{
+	int i;
+	multipass->in_hsize = params->in_hsize;
+	multipass->in_vsize = params->in_vsize;
+	multipass->out_hsize = params->out_hsize;
+	multipass->out_vsize = params->out_vsize;
+	multipass->end_hsize = params->out_hsize;
+	multipass->end_vsize = params->out_vsize;
+	multipass->in_pitch = params->in_pitch;
+	multipass->out_pitch = params->out_pitch;
+	multipass->hstph = params->hstph;
+	multipass->vstph = params->vstph;
+	multipass->inptyp = params->inptyp;
+	multipass->pix_fmt = params->pix_fmt;
+	multipass->cbilin = params->cbilin;
+
+	for (i = 0; i < 32; i++) {
+		multipass->tap4filt_coeffs[i] = params->tap4filt_coeffs[i];
+		multipass->tap7filt_coeffs[i] = params->tap7filt_coeffs[i];
+	}
+}
+
+/**
+ * rsz_set_params - Set parameters for resizer wrapper
+ * @params: Structure containing the Resizer Wrapper parameters
+ * @rsz_conf_chan: Structure containing channel configuration
+ *
+ * Used to set the parameters of the Resizer hardware, including input and
+ * output image size, horizontal and vertical poly-phase filter coefficients,
+ * luma enchancement filter coefficients, etc.
+ **/
+static int rsz_set_params(struct rsz_mult *multipass, struct rsz_params *params,
+					struct channel_config *rsz_conf_chan)
+{
+	int mul = 1;
+	if ((params->yenh_params.type < 0) || (params->yenh_params.type > 2)) {
+		dev_err(rsz_device, "rsz_set_params: Wrong yenh type\n");
+		return -EINVAL;
+	}
+	if ((params->in_vsize <= 0) || (params->in_hsize <= 0) ||
+			(params->out_vsize <= 0) || (params->out_hsize <= 0) ||
+			(params->in_pitch <= 0) || (params->out_pitch <= 0)) {
+		dev_err(rsz_device, "rsz_set_params: Invalid size params\n");
+		return -EINVAL;
+	}
+	if ((params->inptyp != RSZ_INTYPE_YCBCR422_16BIT) &&
+			(params->inptyp != RSZ_INTYPE_PLANAR_8BIT)) {
+		dev_err(rsz_device, "rsz_set_params: Invalid input type\n");
+		return -EINVAL;
+	}
+	if ((params->pix_fmt != RSZ_PIX_FMT_UYVY) &&
+			(params->pix_fmt != RSZ_PIX_FMT_YUYV)) {
+		dev_err(rsz_device, "rsz_set_params: Invalid pixel format\n");
+		return -EINVAL;
+	}
+	if (params->inptyp == RSZ_INTYPE_YCBCR422_16BIT)
+		mul = 2;
+	else
+		mul = 1;
+	if (params->in_pitch < (params->in_hsize * mul)) {
+		dev_err(rsz_device, "rsz_set_params: Pitch is incorrect\n");
+		return -EINVAL;
+	}
+	if (params->out_pitch < (params->out_hsize * mul)) {
+		dev_err(rsz_device, "rsz_set_params: Out pitch cannot be less"
+					" than out hsize\n");
+		return -EINVAL;
+	}
+	/* Output H size should be even */
+	if ((params->out_hsize % PIXEL_EVEN) != 0) {
+		dev_err(rsz_device, "rsz_set_params: Output H size should"
+					" be even\n");
+		return -EINVAL;
+	}
+	if (params->horz_starting_pixel < 0) {
+		dev_err(rsz_device, "rsz_set_params: Horz start pixel cannot"
+					" be less than zero\n");
+		return -EINVAL;
+	}
+
+	rsz_copy_data(multipass, params);
+	if (0 != rsz_set_ratio(multipass, rsz_conf_chan))
+		goto err_einval;
+
+	if (params->yenh_params.type) {
+		if ((multipass->num_htap && multipass->out_hsize >
+				1280) ||
+				(!multipass->num_htap && multipass->out_hsize >
+				640))
+			goto err_einval;
+	}
+
+	if (INPUT_RAM)
+		params->vert_starting_pixel = 0;
+
+	rsz_conf_chan->register_config.rsz_in_start =
+						(params->vert_starting_pixel
+						<< ISPRSZ_IN_SIZE_VERT_SHIFT)
+						& ISPRSZ_IN_SIZE_VERT_MASK;
+
+	if (params->inptyp == RSZ_INTYPE_PLANAR_8BIT) {
+		if (params->horz_starting_pixel > MAX_HORZ_PIXEL_8BIT)
+			goto err_einval;
+	}
+	if (params->inptyp == RSZ_INTYPE_YCBCR422_16BIT) {
+		if (params->horz_starting_pixel > MAX_HORZ_PIXEL_16BIT)
+			goto err_einval;
+	}
+
+	rsz_conf_chan->register_config.rsz_in_start |=
+						params->horz_starting_pixel
+						& ISPRSZ_IN_START_HORZ_ST_MASK;
+
+	rsz_conf_chan->register_config.rsz_yehn =
+						(params->yenh_params.type
+						<< ISPRSZ_YENH_ALGO_SHIFT)
+						& ISPRSZ_YENH_ALGO_MASK;
+
+	if (params->yenh_params.type) {
+		rsz_conf_chan->register_config.rsz_yehn |=
+						params->yenh_params.core
+						& ISPRSZ_YENH_CORE_MASK;
+
+		rsz_conf_chan->register_config.rsz_yehn |=
+						(params->yenh_params.gain
+						<< ISPRSZ_YENH_GAIN_SHIFT)
+						& ISPRSZ_YENH_GAIN_MASK;
+
+		rsz_conf_chan->register_config.rsz_yehn |=
+						(params->yenh_params.slop
+						<< ISPRSZ_YENH_SLOP_SHIFT)
+						& ISPRSZ_YENH_SLOP_MASK;
+	}
+
+	rsz_config_ratio(multipass, rsz_conf_chan);
+
+	rsz_conf_chan->config_state = STATE_CONFIGURED;
+
+	return 0;
+err_einval:
+	return -EINVAL;
+}
+
+/**
+ * rsz_set_ratio - Set ratio
+ * @rsz_conf_chan: Structure containing channel configuration
+ *
+ * Returns 0 if successful, -EINVAL if invalid output size, upscaling ratio is
+ * being requested, or other ratio configuration value is out of bounds
+ **/
+static int rsz_set_ratio(struct rsz_mult *multipass,
+				struct channel_config *rsz_conf_chan)
+{
+	int alignment = 0;
+
+	rsz_conf_chan->register_config.rsz_cnt = 0;
+
+	if ((multipass->out_hsize > MAX_IMAGE_WIDTH) ||
+			(multipass->out_vsize > MAX_IMAGE_WIDTH)) {
+		dev_err(rsz_device, "Invalid output size!");
+		goto err_einval;
+	}
+	if (multipass->cbilin) {
+		rsz_conf_chan->register_config.rsz_cnt =
+				BITSET(rsz_conf_chan->register_config.rsz_cnt,
+				SET_BIT_CBLIN);
+	}
+	if (INPUT_RAM) {
+		rsz_conf_chan->register_config.rsz_cnt =
+				BITSET(rsz_conf_chan->register_config.rsz_cnt,
+				SET_BIT_INPUTRAM);
+	}
+	if (multipass->inptyp == RSZ_INTYPE_PLANAR_8BIT) {
+		rsz_conf_chan->register_config.rsz_cnt =
+				BITSET(rsz_conf_chan->register_config.rsz_cnt,
+				SET_BIT_INPTYP);
+	} else {
+		rsz_conf_chan->register_config.rsz_cnt =
+				BITRESET(rsz_conf_chan->register_config.
+				rsz_cnt, SET_BIT_INPTYP);
+
+		if (multipass->pix_fmt == RSZ_PIX_FMT_UYVY) {
+			rsz_conf_chan->register_config.rsz_cnt =
+				BITRESET(rsz_conf_chan->register_config.
+				rsz_cnt, SET_BIT_YCPOS);
+		} else if (multipass->pix_fmt == RSZ_PIX_FMT_YUYV) {
+			rsz_conf_chan->register_config.rsz_cnt =
+					BITSET(rsz_conf_chan->register_config.
+					rsz_cnt, SET_BIT_YCPOS);
+		}
+
+	}
+	multipass->vrsz =
+		(multipass->in_vsize * RATIO_MULTIPLIER) / multipass->out_vsize;
+	multipass->hrsz =
+		(multipass->in_hsize * RATIO_MULTIPLIER) / multipass->out_hsize;
+	if (UP_RSZ_RATIO > multipass->vrsz || UP_RSZ_RATIO > multipass->hrsz) {
+		dev_err(rsz_device, "Upscaling ratio not supported!");
+		goto err_einval;
+	}
+	multipass->vrsz = (multipass->in_vsize - NUM_D2TAPS) * RATIO_MULTIPLIER
+						/ (multipass->out_vsize - 1);
+	multipass->hrsz = ((multipass->in_hsize - NUM_D2TAPS)
+						* RATIO_MULTIPLIER) /
+						(multipass->out_hsize - 1);
+
+	if (multipass->hrsz <= 512) {
+		multipass->hrsz = (multipass->in_hsize - NUM_TAPS)
+						* RATIO_MULTIPLIER
+						/ (multipass->out_hsize - 1);
+		if (multipass->hrsz < 64)
+			multipass->hrsz = 64;
+		if (multipass->hrsz > 512)
+			multipass->hrsz = 512;
+		if (multipass->hstph > NUM_PHASES)
+			goto err_einval;
+		multipass->num_htap = 1;
+	} else if (multipass->hrsz >= 513 && multipass->hrsz <= 1024) {
+		if (multipass->hstph > NUM_D2PH)
+			goto err_einval;
+		multipass->num_htap = 0;
+	}
+
+	if (multipass->vrsz <= 512) {
+		multipass->vrsz = (multipass->in_vsize - NUM_TAPS)
+						* RATIO_MULTIPLIER
+						/ (multipass->out_vsize - 1);
+		if (multipass->vrsz < 64)
+			multipass->vrsz = 64;
+		if (multipass->vrsz > 512)
+			multipass->vrsz = 512;
+		if (multipass->vstph > NUM_PHASES)
+			goto err_einval;
+		multipass->num_vtap = 1;
+	} else if (multipass->vrsz >= 513 && multipass->vrsz <= 1024) {
+		if (multipass->vstph > NUM_D2PH)
+			goto err_einval;
+		multipass->num_vtap = 0;
+	}
+
+	if ((multipass->in_pitch) % ALIGN32) {
+		dev_err(rsz_device, "Invalid input pitch: %d \n",
+							multipass->in_pitch);
+		goto err_einval;
+	}
+	if ((multipass->out_pitch) % ALIGN32) {
+		dev_err(rsz_device, "Invalid output pitch %d \n",
+							multipass->out_pitch);
+		goto err_einval;
+	}
+
+	if (multipass->vrsz < 256 &&
+			(multipass->in_vsize < multipass->out_vsize)) {
+		if (multipass->inptyp == RSZ_INTYPE_PLANAR_8BIT)
+			alignment = ALIGNMENT;
+		else if (multipass->inptyp == RSZ_INTYPE_YCBCR422_16BIT)
+			alignment = (ALIGNMENT / 2);
+		else
+			dev_err(rsz_device, "Invalid input type\n");
+
+		if (!(((multipass->out_hsize % PIXEL_EVEN) == 0)
+				&& (multipass->out_hsize % alignment) == 0)) {
+			dev_err(rsz_device, "wrong hsize\n");
+			goto err_einval;
+		}
+	}
+	if (multipass->hrsz >= 64 && multipass->hrsz <= 1024) {
+		if (multipass->out_hsize > MAX_IMAGE_WIDTH) {
+			dev_err(rsz_device, "wrong width\n");
+			goto err_einval;
+		}
+		multipass->active = 0;
+
+	} else if (multipass->hrsz > 1024) {
+		if (multipass->out_hsize > MAX_IMAGE_WIDTH) {
+			dev_err(rsz_device, "wrong width\n");
+			goto err_einval;
+		}
+		if (multipass->hstph > NUM_D2PH)
+			goto err_einval;
+		multipass->num_htap = 0;
+		multipass->out_hsize = multipass->in_hsize * 256 / 1024;
+		if (multipass->out_hsize % ALIGN32) {
+			multipass->out_hsize +=
+				abs((multipass->out_hsize % ALIGN32) - ALIGN32);
+		}
+		multipass->out_pitch = ((multipass->inptyp) ?
+						multipass->out_hsize :
+						(multipass->out_hsize * 2));
+		multipass->hrsz = ((multipass->in_hsize - NUM_D2TAPS)
+						* RATIO_MULTIPLIER)
+						/ (multipass->out_hsize - 1);
+		multipass->active = 1;
+
+	}
+
+	if (multipass->vrsz > 1024) {
+		if (multipass->out_vsize > MAX_IMAGE_WIDTH_HIGH) {
+			dev_err(rsz_device, "wrong width\n");
+			goto err_einval;
+		}
+
+		multipass->out_vsize = multipass->in_vsize * 256 / 1024;
+		multipass->vrsz = ((multipass->in_vsize - NUM_D2TAPS)
+						* RATIO_MULTIPLIER)
+						/ (multipass->out_vsize - 1);
+		multipass->active = 1;
+		multipass->num_vtap = 0;
+
+	}
+	rsz_conf_chan->register_config.rsz_out_size =
+						multipass->out_hsize
+						& ISPRSZ_OUT_SIZE_HORZ_MASK;
+
+	rsz_conf_chan->register_config.rsz_out_size |=
+						(multipass->out_vsize
+						<< ISPRSZ_OUT_SIZE_VERT_SHIFT)
+						& ISPRSZ_OUT_SIZE_VERT_MASK;
+
+	rsz_conf_chan->register_config.rsz_sdr_inoff =
+						multipass->in_pitch
+						& ISPRSZ_SDR_INOFF_OFFSET_MASK;
+
+	rsz_conf_chan->register_config.rsz_sdr_outoff =
+					multipass->out_pitch
+					& ISPRSZ_SDR_OUTOFF_OFFSET_MASK;
+
+	if (multipass->hrsz >= 64 && multipass->hrsz <= 512) {
+		if (multipass->hstph > NUM_PHASES)
+			goto err_einval;
+	} else if (multipass->hrsz >= 64 && multipass->hrsz <= 512) {
+		if (multipass->hstph > NUM_D2PH)
+			goto err_einval;
+	}
+
+	rsz_conf_chan->register_config.rsz_cnt |=
+						(multipass->hstph
+						<< ISPRSZ_CNT_HSTPH_SHIFT)
+						& ISPRSZ_CNT_HSTPH_MASK;
+
+	if (multipass->vrsz >= 64 && multipass->hrsz <= 512) {
+		if (multipass->vstph > NUM_PHASES)
+			goto err_einval;
+	} else if (multipass->vrsz >= 64 && multipass->vrsz <= 512) {
+		if (multipass->vstph > NUM_D2PH)
+			goto err_einval;
+	}
+
+	rsz_conf_chan->register_config.rsz_cnt |=
+						(multipass->vstph
+						<< ISPRSZ_CNT_VSTPH_SHIFT)
+						& ISPRSZ_CNT_VSTPH_MASK;
+
+	rsz_conf_chan->register_config.rsz_cnt |=
+						(multipass->hrsz - 1)
+						& ISPRSZ_CNT_HRSZ_MASK;
+
+	rsz_conf_chan->register_config.rsz_cnt |=
+						((multipass->vrsz - 1)
+						<< ISPRSZ_CNT_VRSZ_SHIFT)
+						& ISPRSZ_CNT_VRSZ_MASK;
+
+	return 0;
+err_einval:
+	return -EINVAL;
+}
+
+/**
+ * rsz_config_ratio - Configure ratio
+ * @rsz_conf_chan: Structure containing channel configuration
+ *
+ * Configure ratio
+ **/
+static void rsz_config_ratio(struct rsz_mult *multipass,
+				struct channel_config *rsz_conf_chan)
+{
+	int hsize;
+	int vsize;
+	int coeffcounter;
+
+	if (multipass->hrsz <= 512) {
+		hsize = ((32 * multipass->hstph + (multipass->out_hsize - 1)
+					* multipass->hrsz + 16) >> 8) + 7;
+	} else {
+		hsize = ((64 * multipass->hstph + (multipass->out_hsize - 1)
+					* multipass->hrsz + 32) >> 8) + 7;
+	}
+	if (multipass->vrsz <= 512) {
+		vsize = ((32 * multipass->vstph + (multipass->out_vsize - 1)
+					* multipass->vrsz + 16) >> 8) + 4;
+	} else {
+		vsize = ((64 * multipass->vstph + (multipass->out_vsize - 1)
+					* multipass->vrsz + 32) >> 8) + 7;
+	}
+	rsz_conf_chan->register_config.rsz_in_size = hsize;
+
+	rsz_conf_chan->register_config.rsz_in_size |=
+					((vsize << ISPRSZ_IN_SIZE_VERT_SHIFT)
+					& ISPRSZ_IN_SIZE_VERT_MASK);
+
+	for (coeffcounter = 0; coeffcounter < MAX_COEF_COUNTER;
+							coeffcounter++) {
+		if (multipass->num_htap) {
+			rsz_conf_chan->register_config.
+					rsz_coeff_horz[coeffcounter] =
+					(multipass->tap4filt_coeffs[2
+					* coeffcounter]
+					& ISPRSZ_HFILT10_COEF0_MASK);
+			rsz_conf_chan->register_config.
+					rsz_coeff_horz[coeffcounter] |=
+					((multipass->tap4filt_coeffs[2
+					* coeffcounter + 1]
+					<< ISPRSZ_HFILT10_COEF1_SHIFT)
+					& ISPRSZ_HFILT10_COEF1_MASK);
+		} else {
+			rsz_conf_chan->register_config.
+					rsz_coeff_horz[coeffcounter] =
+					(multipass->tap7filt_coeffs[2
+					* coeffcounter]
+					& ISPRSZ_HFILT10_COEF0_MASK);
+
+			rsz_conf_chan->register_config.
+					rsz_coeff_horz[coeffcounter] |=
+					((multipass->tap7filt_coeffs[2
+					* coeffcounter + 1]
+					<< ISPRSZ_HFILT10_COEF1_SHIFT)
+					& ISPRSZ_HFILT10_COEF1_MASK);
+		}
+
+		if (multipass->num_vtap) {
+			rsz_conf_chan->register_config.
+					rsz_coeff_vert[coeffcounter] =
+					(multipass->tap4filt_coeffs[2
+					* coeffcounter]
+					& ISPRSZ_VFILT10_COEF0_MASK);
+
+			rsz_conf_chan->register_config.
+					rsz_coeff_vert[coeffcounter] |=
+					((multipass->tap4filt_coeffs[2
+					* coeffcounter + 1]
+					<< ISPRSZ_VFILT10_COEF1_SHIFT) &
+					ISPRSZ_VFILT10_COEF1_MASK);
+		} else {
+			rsz_conf_chan->register_config.
+					rsz_coeff_vert[coeffcounter] =
+					(multipass->tap7filt_coeffs[2
+					* coeffcounter]
+					& ISPRSZ_VFILT10_COEF0_MASK);
+			rsz_conf_chan->register_config.
+					rsz_coeff_vert[coeffcounter] |=
+					((multipass->tap7filt_coeffs[2
+					* coeffcounter + 1]
+					<< ISPRSZ_VFILT10_COEF1_SHIFT)
+					& ISPRSZ_VFILT10_COEF1_MASK);
+		}
+	}
+}
+
+/**
+ * rsz_get_params - Gets the parameter values
+ * @params: Structure containing the Resizer Wrapper parameters
+ * @rsz_conf_chan: Structure containing channel configuration
+ *
+ * Used to get the Resizer hardware settings associated with the
+ * current logical channel represented by fd.
+ **/
+static int rsz_get_params(struct rsz_params *params,
+					struct channel_config *rsz_conf_chan)
+{
+	int coeffcounter;
+
+	if (rsz_conf_chan->config_state) {
+		dev_err(rsz_device, "state not configured\n");
+		return -EINVAL;
+	}
+
+	params->in_hsize = rsz_conf_chan->register_config.rsz_in_size
+					& ISPRSZ_IN_SIZE_HORZ_MASK;
+	params->in_vsize = (rsz_conf_chan->register_config.rsz_in_size
+					& ISPRSZ_IN_SIZE_VERT_MASK)
+					>> ISPRSZ_IN_SIZE_VERT_SHIFT;
+
+	params->in_pitch = rsz_conf_chan->register_config.rsz_sdr_inoff
+					& ISPRSZ_SDR_INOFF_OFFSET_MASK;
+
+	params->out_hsize = rsz_conf_chan->register_config.rsz_out_size
+					& ISPRSZ_OUT_SIZE_HORZ_MASK;
+
+	params->out_vsize = (rsz_conf_chan->register_config.rsz_out_size
+					& ISPRSZ_OUT_SIZE_VERT_MASK)
+					>> ISPRSZ_OUT_SIZE_VERT_SHIFT;
+
+	params->out_pitch = rsz_conf_chan->register_config.rsz_sdr_outoff
+					& ISPRSZ_SDR_OUTOFF_OFFSET_MASK;
+
+	params->cbilin = (rsz_conf_chan->register_config.rsz_cnt
+					& SET_BIT_CBLIN) >> SET_BIT_CBLIN;
+
+	params->inptyp = (rsz_conf_chan->register_config.rsz_cnt
+					& ISPRSZ_CNT_INPTYP_MASK)
+					>> SET_BIT_INPTYP;
+	params->horz_starting_pixel = ((rsz_conf_chan->register_config.
+					rsz_in_start
+					& ISPRSZ_IN_START_HORZ_ST_MASK));
+	params->vert_starting_pixel = ((rsz_conf_chan->register_config.
+					rsz_in_start
+					& ISPRSZ_IN_START_VERT_ST_MASK)
+					>> ISPRSZ_IN_START_VERT_ST_SHIFT);
+
+	params->hstph = ((rsz_conf_chan->register_config.rsz_cnt
+					& ISPRSZ_CNT_HSTPH_MASK
+					>> ISPRSZ_CNT_HSTPH_SHIFT));
+	params->vstph = ((rsz_conf_chan->register_config.rsz_cnt
+					& ISPRSZ_CNT_VSTPH_MASK
+					>> ISPRSZ_CNT_VSTPH_SHIFT));
+
+	for (coeffcounter = 0; coeffcounter < MAX_COEF_COUNTER;
+							coeffcounter++) {
+		params->tap4filt_coeffs[2 * coeffcounter] =
+					rsz_conf_chan->register_config.
+					rsz_coeff_horz[coeffcounter]
+					& ISPRSZ_HFILT10_COEF0_MASK;
+
+		params->tap4filt_coeffs[2 * coeffcounter + 1] =
+					(rsz_conf_chan->register_config.
+					rsz_coeff_horz[coeffcounter]
+					& ISPRSZ_HFILT10_COEF1_MASK)
+					>> ISPRSZ_HFILT10_COEF1_SHIFT;
+
+		params->tap7filt_coeffs[2 * coeffcounter] =
+					rsz_conf_chan->register_config.
+					rsz_coeff_vert[coeffcounter]
+					& ISPRSZ_VFILT10_COEF0_MASK;
+
+		params->tap7filt_coeffs[2 * coeffcounter + 1] =
+					(rsz_conf_chan->register_config.
+					rsz_coeff_vert[coeffcounter]
+					& ISPRSZ_VFILT10_COEF1_MASK)
+					>> ISPRSZ_VFILT10_COEF1_SHIFT;
+
+	}
+
+	params->yenh_params.type = (rsz_conf_chan->register_config.rsz_yehn
+					& ISPRSZ_YENH_ALGO_MASK)
+					>> ISPRSZ_YENH_ALGO_SHIFT;
+
+	params->yenh_params.core = rsz_conf_chan->register_config.rsz_yehn
+					& ISPRSZ_YENH_CORE_MASK;
+
+	params->yenh_params.gain = (rsz_conf_chan->register_config.rsz_yehn
+					& ISPRSZ_YENH_GAIN_MASK)
+					>> ISPRSZ_YENH_GAIN_SHIFT;
+
+	params->yenh_params.slop = (rsz_conf_chan->register_config.rsz_yehn
+					& ISPRSZ_YENH_SLOP_MASK)
+					>> ISPRSZ_YENH_SLOP_SHIFT;
+
+	params->pix_fmt = ((rsz_conf_chan->register_config.rsz_cnt
+					& ISPRSZ_CNT_PIXFMT_MASK)
+					>> SET_BIT_YCPOS);
+
+	if (params->pix_fmt)
+		params->pix_fmt = RSZ_PIX_FMT_UYVY;
+	else
+		params->pix_fmt = RSZ_PIX_FMT_YUYV;
+
+	return 0;
+}
+
+/**
+ * rsz_calculate_crop - Calculate Crop values
+ * @rsz_conf_chan: Structure containing channel configuration
+ * @cropsize: Structure containing crop parameters
+ *
+ * Calculate Crop values
+ **/
+static void rsz_calculate_crop(struct channel_config *rsz_conf_chan,
+						struct rsz_cropsize *cropsize)
+{
+	int luma_enable;
+
+	cropsize->hcrop = 0;
+	cropsize->vcrop = 0;
+
+	luma_enable = (rsz_conf_chan->register_config.rsz_yehn
+						& ISPRSZ_YENH_ALGO_MASK)
+						>> ISPRSZ_YENH_ALGO_SHIFT;
+
+	if (luma_enable)
+		cropsize->hcrop += 2;
+}
+
+/**
+ * rsz_vbq_release - Videobuffer queue release
+ * @q: Structure containing the videobuffer queue file handle, and device
+ *     structure which contains the actual configuration.
+ * @vb: Structure containing the videobuffer used for resizer processing.
+ **/
+static void rsz_vbq_release(struct videobuf_queue *q,
+						struct videobuf_buffer *vb)
+{
+	int i;
+	struct rsz_fh *fh = q->priv_data;
+
+	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
+		struct videobuf_dmabuf *dma = NULL;
+		if (!q->bufs[i])
+			continue;
+		if (q->bufs[i]->memory != V4L2_MEMORY_MMAP)
+			continue;
+		dma = videobuf_to_dma(q->bufs[i]);
+		videobuf_dma_unmap(q, dma);
+		videobuf_dma_free(dma);
+	}
+
+	ispmmu_vunmap(fh->isp_addr_read);
+	ispmmu_vunmap(fh->isp_addr_write);
+	fh->isp_addr_read = 0;
+	fh->isp_addr_write = 0;
+	spin_lock(&fh->vbq_lock);
+	vb->state = VIDEOBUF_NEEDS_INIT;
+	spin_unlock(&fh->vbq_lock);
+
+}
+
+/**
+ * rsz_vbq_setup - Sets up the videobuffer size and validates count.
+ * @q: Structure containing the videobuffer queue file handle, and device
+ *     structure which contains the actual configuration.
+ * @cnt: Number of buffers requested
+ * @size: Size in bytes of the buffer used for previewing
+ *
+ * Always returns 0.
+ **/
+static int rsz_vbq_setup(struct videobuf_queue *q, unsigned int *cnt,
+							unsigned int *size)
+{
+	struct rsz_fh *fh = q->priv_data;
+	struct rsz_mult *multipass = fh->multipass;
+	u32 insize, outsize;
+
+	spin_lock(&fh->vbq_lock);
+	if (*cnt <= 0)
+		*cnt = VIDEO_MAX_FRAME;
+
+	if (*cnt > VIDEO_MAX_FRAME)
+		*cnt = VIDEO_MAX_FRAME;
+
+	outsize = multipass->out_pitch * multipass->out_vsize;
+	insize = multipass->in_pitch * multipass->in_vsize;
+	if (*cnt == 1 && (outsize > insize)) {
+		dev_err(rsz_device, "2 buffers are required for Upscaling "
+								"mode\n");
+		goto err_einval;
+	}
+	if (!fh->params->in_hsize || !fh->params->in_vsize) {
+		dev_err(rsz_device, "Can't setup buffer size\n");
+		goto err_einval;
+	} else {
+		if (outsize > insize)
+			*size = outsize;
+		else
+			*size = insize;
+
+		fh->rsz_bufsize = *size;
+	}
+	spin_unlock(&fh->vbq_lock);
+
+	return 0;
+err_einval:
+	spin_unlock(&fh->vbq_lock);
+	return -EINVAL;
+}
+
+/**
+ * rsz_vbq_prepare - Videobuffer is prepared and mmapped.
+ * @q: Structure containing the videobuffer queue file handle, and device
+ *     structure which contains the actual configuration.
+ * @vb: Structure containing the videobuffer used for resizer processing.
+ * @field: Type of field to set in videobuffer device.
+ *
+ * Returns 0 if successful, or -EINVAL if buffer couldn't get allocated, or
+ * -EIO if the ISP MMU mapping fails
+ **/
+static int rsz_vbq_prepare(struct videobuf_queue *q,
+						struct videobuf_buffer *vb,
+						enum v4l2_field field)
+{
+	struct rsz_fh *fh = q->priv_data;
+	struct channel_config *rsz_conf_chan = fh->config;
+	struct rsz_mult *multipass = fh->multipass;
+	int err = 0;
+	unsigned int isp_addr, insize, outsize;
+	struct videobuf_dmabuf *dma = videobuf_to_dma(vb);
+
+	spin_lock(&fh->vbq_lock);
+	if (vb->baddr) {
+		vb->size = fh->rsz_bufsize;
+		vb->bsize = fh->rsz_bufsize;
+	} else {
+		spin_unlock(&fh->vbq_lock);
+		dev_err(rsz_device, "No user buffer allocated\n");
+		goto out;
+	}
+	if (vb->i) {
+		vb->width = fh->params->out_hsize;
+		vb->height = fh->params->out_vsize;
+	} else {
+		vb->width = fh->params->in_hsize;
+		vb->height = fh->params->in_vsize;
+	}
+
+	vb->field = field;
+	spin_unlock(&fh->vbq_lock);
+
+	if (vb->state == VIDEOBUF_NEEDS_INIT) {
+		err = videobuf_iolock(q, vb, NULL);
+		if (!err) {
+			isp_addr = ispmmu_vmap(dma->sglist, dma->sglen);
+			if (!isp_addr)
+				err = -EIO;
+			else {
+				if (vb->i) {
+					rsz_conf_chan->register_config.
+							rsz_sdr_outadd
+							= isp_addr;
+					fh->isp_addr_write = isp_addr;
+					rsz_conf_chan->output_buf_index = vb->i;
+				} else {
+					rsz_conf_chan->register_config.
+							rsz_sdr_inadd
+							= isp_addr;
+					rsz_conf_chan->input_buf_index = vb->i;
+					outsize = multipass->out_pitch *
+							multipass->out_vsize;
+					insize = multipass->in_pitch *
+							multipass->in_vsize;
+					if (outsize < insize) {
+						rsz_conf_chan->register_config.
+								rsz_sdr_outadd
+								= isp_addr;
+						rsz_conf_chan->
+							output_buf_index =
+							vb->i;
+					}
+
+					fh->isp_addr_read = isp_addr;
+				}
+			}
+		}
+
+	}
+
+	if (!err) {
+		spin_lock(&fh->vbq_lock);
+		vb->state = VIDEOBUF_PREPARED;
+		spin_unlock(&fh->vbq_lock);
+		flush_cache_user_range(NULL, vb->baddr, (vb->baddr
+								+ vb->bsize));
+	} else
+		rsz_vbq_release(q, vb);
+
+out:
+	return err;
+}
+
+static void rsz_vbq_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+	return;
+}
+
+/**
+ * rsz_open - Initializes and opens the Resizer Wrapper
+ * @inode: Inode structure associated with the Resizer Wrapper
+ * @filp: File structure associated with the Resizer Wrapper
+ *
+ * Returns 0 if successful, -EBUSY if its already opened or the ISP module is
+ * not available, or -ENOMEM if its unable to allocate the device in kernel
+ * space memory.
+ **/
+static int rsz_open(struct inode *inode, struct file *filp)
+{
+	int ret = 0;
+	struct channel_config *rsz_conf_chan;
+	struct rsz_fh *fh;
+	struct device_params *device = device_config;
+	struct rsz_params *params;
+	struct rsz_mult *multipass;
+
+	if ((filp->f_flags & O_NONBLOCK) == O_NONBLOCK) {
+		printk(KERN_DEBUG "omap-resizer: Device is opened in "
+					"non blocking mode\n");
+	} else {
+		printk(KERN_DEBUG "omap-resizer: Device is opened in blocking "
+					"mode\n");
+	}
+	fh = kzalloc(sizeof(struct rsz_fh), GFP_KERNEL);
+	if (NULL == fh)
+		return -ENOMEM;
+
+	isp_get();
+
+	rsz_conf_chan = kzalloc(sizeof(struct channel_config), GFP_KERNEL);
+	if (rsz_conf_chan == NULL) {
+		dev_err(rsz_device, "\n cannot allocate memory to config");
+		ret = -ENOMEM;
+		goto err_enomem0;
+	}
+	params = kzalloc(sizeof(struct rsz_params), GFP_KERNEL);
+	if (params == NULL) {
+		dev_err(rsz_device, "\n cannot allocate memory to params");
+		ret = -ENOMEM;
+		goto err_enomem1;
+	}
+	multipass = kzalloc(sizeof(struct rsz_mult), GFP_KERNEL);
+	if (multipass == NULL) {
+		dev_err(rsz_device, "\n cannot allocate memory to multipass");
+		ret = -ENOMEM;
+		goto err_enomem2;
+	}
+
+	fh->multipass = multipass;
+	fh->params = params;
+	fh->config = rsz_conf_chan;
+
+	if (mutex_lock_interruptible(&device->reszwrap_mutex)) {
+		ret = -EINTR;
+		goto err_enomem2;
+	}
+	device->opened++;
+	mutex_unlock(&device->reszwrap_mutex);
+
+	rsz_conf_chan->config_state = STATE_NOT_CONFIGURED;
+	rsz_conf_chan->status = CHANNEL_FREE;
+
+	filp->private_data = fh;
+	fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	fh->device = device;
+
+	videobuf_queue_sg_init(&fh->vbq, &device->vbq_ops, NULL,
+					&fh->vbq_lock, fh->type,
+					V4L2_FIELD_NONE,
+					sizeof(struct videobuf_buffer), fh);
+
+	spin_lock_init(&fh->vbq_lock);
+	mutex_init(&rsz_conf_chan->chanprotection_mutex);
+
+	return 0;
+err_enomem2:
+	kfree(params);
+err_enomem1:
+	kfree(rsz_conf_chan);
+err_enomem0:
+	kfree(fh);
+	return ret;
+}
+
+/**
+ * rsz_release - Releases Resizer Wrapper and frees up allocated memory
+ * @inode: Inode structure associated with the Resizer Wrapper
+ * @filp: File structure associated with the Resizer Wrapper
+ *
+ * Returns 0 if successful, or -EBUSY if channel is being used.
+ **/
+static int rsz_release(struct inode *inode, struct file *filp)
+{
+	u32 timeout = 0;
+	struct rsz_fh *fh = filp->private_data;
+	struct channel_config *rsz_conf_chan = fh->config;
+	struct rsz_params *params = fh->params;
+	struct rsz_mult *multipass = fh->multipass;
+	struct videobuf_queue *q = &fh->vbq;
+
+	while ((rsz_conf_chan->status != CHANNEL_FREE) && (timeout < 20)) {
+		timeout++;
+		schedule();
+	}
+	if (mutex_lock_interruptible(&device_config->reszwrap_mutex))
+		return -EINTR;
+	device_config->opened--;
+	mutex_unlock(&device_config->reszwrap_mutex);
+	/* This will Free memory allocated to the buffers,
+	 * and flushes the queue
+	 */
+	videobuf_queue_cancel(q);
+	fh->params = NULL;
+	fh->config = NULL;
+
+	fh->rsz_bufsize = 0;
+	filp->private_data = NULL;
+
+	kfree(rsz_conf_chan);
+	kfree(params);
+	kfree(multipass);
+	kfree(fh);
+
+	isp_put();
+
+	return 0;
+}
+
+/**
+ * rsz_mmap - Memory maps the Resizer Wrapper module.
+ * @file: File structure associated with the Resizer Wrapper
+ * @vma: Virtual memory area structure.
+ *
+ * Returns 0 if successful, or returned value by the videobuf_mmap_mapper()
+ * function.
+ **/
+static int rsz_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct rsz_fh *fh = file->private_data;
+
+	return videobuf_mmap_mapper(&fh->vbq, vma);
+}
+
+/**
+ * rsz_ioctl - I/O control function for Resizer Wrapper
+ * @inode: Inode structure associated with the Resizer Wrapper.
+ * @file: File structure associated with the Resizer Wrapper.
+ * @cmd: Type of command to execute.
+ * @arg: Argument to send to requested command.
+ *
+ * Returns 0 if successful, -EBUSY if channel is being used, -1 if bad command
+ * passed or access is denied, -EFAULT if copy_from_user() or copy_to_user()
+ * fails, -EINVAL if parameter validation fails or parameter structure is not
+ * present.
+ **/
+static long rsz_unlocked_ioctl(struct file *file, unsigned int cmd,
+							unsigned long arg)
+{
+	int ret = 0;
+	struct rsz_fh *fh = file->private_data;
+	struct device_params *device = fh->device;
+	struct channel_config *rsz_conf_chan = fh->config;
+
+	if ((_IOC_TYPE(cmd) != RSZ_IOC_BASE)
+					|| (_IOC_NR(cmd) > RSZ_IOC_MAXNR)) {
+		dev_err(rsz_device, "Bad command value \n");
+		return -1;
+	}
+
+	if (_IOC_DIR(cmd) & _IOC_READ)
+		ret = !access_ok(VERIFY_WRITE, (void *)arg, _IOC_SIZE(cmd));
+	else if (_IOC_DIR(cmd) & _IOC_WRITE)
+		ret = !access_ok(VERIFY_READ, (void *)arg, _IOC_SIZE(cmd));
+
+	if (ret) {
+		dev_err(rsz_device, "Access denied\n");
+		return -1;
+	}
+
+	switch (cmd) {
+	case RSZ_REQBUF:
+	{
+		struct v4l2_requestbuffers req_buf;
+		if (copy_from_user(&req_buf, (struct v4l2_requestbuffers *)arg,
+					sizeof(struct v4l2_requestbuffers))) {
+			return -EFAULT;
+		}
+		if (mutex_lock_interruptible(&rsz_conf_chan->
+							chanprotection_mutex))
+			return -EINTR;
+		ret = videobuf_reqbufs(&fh->vbq, (void *)&req_buf);
+		mutex_unlock(&rsz_conf_chan->chanprotection_mutex);
+		break;
+	}
+	case RSZ_QUERYBUF:
+	{
+		struct v4l2_buffer buf;
+		if (copy_from_user(&buf, (struct v4l2_buffer *)arg,
+						sizeof(struct v4l2_buffer))) {
+			return -EFAULT;
+		}
+		if (mutex_lock_interruptible(&rsz_conf_chan->
+							chanprotection_mutex))
+			return -EINTR;
+		ret = videobuf_querybuf(&fh->vbq, (void *)&buf);
+		mutex_unlock(&rsz_conf_chan->chanprotection_mutex);
+		if (copy_to_user((struct v4l2_buffer *)arg, &buf,
+						sizeof(struct v4l2_buffer)))
+			return -EFAULT;
+		break;
+	}
+	case RSZ_QUEUEBUF:
+	{
+		struct v4l2_buffer buf;
+		if (copy_from_user(&buf, (struct v4l2_buffer *)arg,
+						sizeof(struct v4l2_buffer))) {
+			return -EFAULT;
+		}
+		if (mutex_lock_interruptible(&rsz_conf_chan->
+							chanprotection_mutex))
+			return -EINTR;
+		ret = videobuf_qbuf(&fh->vbq, (void *)&buf);
+		mutex_unlock(&rsz_conf_chan->chanprotection_mutex);
+		break;
+	}
+	case RSZ_S_PARAM:
+	{
+		struct rsz_params *params = fh->params;
+		if (copy_from_user(params, (struct rsz_params *)arg,
+						sizeof(struct rsz_params))) {
+			return -EFAULT;
+		}
+		if (mutex_lock_interruptible(&rsz_conf_chan->
+							chanprotection_mutex))
+			return -EINTR;
+		ret = rsz_set_params(fh->multipass, params, rsz_conf_chan);
+		mutex_unlock(&rsz_conf_chan->chanprotection_mutex);
+		break;
+	}
+	case RSZ_G_PARAM:
+		ret = rsz_get_params((struct rsz_params *)arg, rsz_conf_chan);
+		break;
+
+	case RSZ_G_STATUS:
+	{
+		struct rsz_status *status;
+		status = (struct rsz_status *)arg;
+		status->chan_busy = rsz_conf_chan->status;
+		status->hw_busy = ispresizer_busy();
+		status->src = INPUT_RAM;
+		break;
+	}
+	case RSZ_RESIZE:
+		if (file->f_flags & O_NONBLOCK) {
+			if (ispresizer_busy())
+				return -EBUSY;
+			else {
+				if (!mutex_trylock(&device->reszwrap_mutex))
+					return -EBUSY;
+			}
+		} else {
+			if (mutex_lock_interruptible(&device->reszwrap_mutex))
+				return -EINTR;
+		}
+		ret = rsz_start((int *)arg, fh);
+		mutex_unlock(&device->reszwrap_mutex);
+		break;
+	case RSZ_GET_CROPSIZE:
+		rsz_calculate_crop(rsz_conf_chan, (struct rsz_cropsize *)arg);
+		break;
+
+	default:
+		dev_err(rsz_device, "resizer_ioctl: Invalid Command Value");
+		return -EINVAL;
+	}
+
+	return (long)ret;
+}
+
+static struct file_operations rsz_fops = {
+	.owner = THIS_MODULE,
+	.open = rsz_open,
+	.release = rsz_release,
+	.mmap = rsz_mmap,
+	.unlocked_ioctl = rsz_unlocked_ioctl,
+};
+
+/**
+ * rsz_isr - Interrupt Service Routine for Resizer wrapper
+ * @status: ISP IRQ0STATUS register value
+ * @arg1: Currently not used
+ * @arg2: Currently not used
+ *
+ * Interrupt Service Routine for Resizer wrapper
+ **/
+static void rsz_isr(unsigned long status, isp_vbq_callback_ptr arg1, void *arg2)
+{
+
+	if ((status & RESZ_DONE) != RESZ_DONE)
+		return;
+
+	complete(&(device_config->compl_isr));
+
+}
+
+/**
+ * resizer_platform_release - Acts when Reference count is zero
+ * @device: Structure containing ISP resizer wrapper global information
+ *
+ * This is called when the reference count goes to zero.
+ **/
+static void resizer_platform_release(struct device *device)
+{
+}
+
+/**
+ * resizer_probe - Checks for device presence
+ * @device: Structure containing details of the current device.
+ *
+ * Always returns 0.
+ **/
+static int __init resizer_probe(struct platform_device *device)
+{
+	return 0;
+}
+
+/**
+ * resizer_remove - Handles the removal of the driver
+ * @omap_resizer_device: Structure containing details of the current device.
+ *
+ * Always returns 0.
+ **/
+static int resizer_remove(struct platform_device *omap_resizer_device)
+{
+	return 0;
+}
+
+static struct class *rsz_class;
+static struct cdev c_dev;
+static dev_t dev;
+static struct platform_device omap_resizer_device = {
+	.name = OMAP_REZR_NAME,
+	.id = 2,
+	.dev = {
+		.release = resizer_platform_release,}
+};
+
+static struct platform_driver omap_resizer_driver = {
+	.probe = resizer_probe,
+	.remove = resizer_remove,
+	.driver = {
+			.bus = &platform_bus_type,
+			.name = OMAP_REZR_NAME,
+	},
+};
+
+/**
+ * omap_rsz_init - Initialization of Resizer Wrapper
+ *
+ * Returns 0 if successful, -ENOMEM if could not allocate memory, -ENODEV if
+ * could not register the wrapper as a character device, or other errors if the
+ * device or driver can't register.
+ **/
+static int __init omap_rsz_init(void)
+{
+	int ret = 0;
+	struct device_params *device;
+	device = kzalloc(sizeof(struct device_params), GFP_KERNEL);
+	if (!device) {
+		dev_err(rsz_device, OMAP_REZR_NAME ": could not allocate "
+								"memory\n");
+		return -ENOMEM;
+	}
+
+	ret = alloc_chrdev_region(&dev, 0, 1, OMAP_REZR_NAME);
+	if (ret < 0) {
+		dev_err(rsz_device, OMAP_REZR_NAME ": intialization failed. "
+			"Could not allocate region "
+			"for character device\n");
+		kfree(device);
+		return -ENODEV;
+	}
+
+	/* Register the driver in the kernel */
+	/* Initialize of character device */
+	cdev_init(&c_dev, &rsz_fops);
+	c_dev.owner = THIS_MODULE;
+	c_dev.ops = &rsz_fops;
+
+	/* Addding character device */
+	ret = cdev_add(&c_dev, dev, 1);
+	if (ret) {
+		dev_err(rsz_device, OMAP_REZR_NAME ": Error adding "
+			"device - %d\n", ret);
+		goto fail2;
+	}
+	rsz_major = MAJOR(dev);
+
+	/* register driver as a platform driver */
+	ret = platform_driver_register(&omap_resizer_driver);
+	if (ret) {
+		dev_err(rsz_device, OMAP_REZR_NAME
+				": Failed to register platform driver!\n");
+		goto fail3;
+	}
+
+	/* Register the drive as a platform device */
+	ret = platform_device_register(&omap_resizer_device);
+	if (ret) {
+		dev_err(rsz_device, OMAP_REZR_NAME
+				": Failed to register platform device!\n");
+		goto fail4;
+	}
+
+	rsz_class = class_create(THIS_MODULE, OMAP_REZR_NAME);
+	if (!rsz_class) {
+		dev_err(rsz_device, OMAP_REZR_NAME
+			": Failed to create class!\n");
+		goto fail5;
+	}
+
+	/* make entry in the devfs */
+	rsz_device = device_create(rsz_class, rsz_device,
+						MKDEV(rsz_major, 0), NULL,
+						OMAP_REZR_NAME);
+	dev_dbg(rsz_device, OMAP_REZR_NAME ": Registered Resizer Wrapper\n");
+	device->opened = 0;
+
+	device->vbq_ops.buf_setup = rsz_vbq_setup;
+	device->vbq_ops.buf_prepare = rsz_vbq_prepare;
+	device->vbq_ops.buf_release = rsz_vbq_release;
+	device->vbq_ops.buf_queue = rsz_vbq_queue;
+	init_completion(&device->compl_isr);
+	mutex_init(&device->reszwrap_mutex);
+
+	device_config = device;
+	return 0;
+
+fail5:
+	platform_device_unregister(&omap_resizer_device);
+fail4:
+	platform_driver_unregister(&omap_resizer_driver);
+fail3:
+	cdev_del(&c_dev);
+fail2:
+	unregister_chrdev_region(dev, 1);
+	kfree(device);
+	return ret;
+}
+
+/**
+ * omap_rsz_exit - Close of Resizer Wrapper
+ **/
+void __exit omap_rsz_exit(void)
+{
+	device_destroy(rsz_class, dev);
+	class_destroy(rsz_class);
+	platform_device_unregister(&omap_resizer_device);
+	platform_driver_unregister(&omap_resizer_driver);
+	cdev_del(&c_dev);
+	unregister_chrdev_region(dev, 1);
+	kfree(device_config);
+}
+
+module_init(omap_rsz_init)
+module_exit(omap_rsz_exit)
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("OMAP ISP Resizer");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/omap_resizer.h b/include/linux/omap_resizer.h
new file mode 100644
index 0000000..5ac0c88
--- /dev/null
+++ b/include/linux/omap_resizer.h
@@ -0,0 +1,136 @@
+/*
+ * drivers/media/video/isp/omap_resizer.h
+ *
+ * Include file for Resizer module wrapper in TI's OMAP3430 ISP
+ *
+ * Copyright (C) 2008 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef OMAP_RESIZER_H
+#define OMAP_RESIZER_H
+
+#include <linux/types.h>
+
+/* ioctls definition */
+#define RSZ_IOC_BASE		'R'
+#define RSZ_IOC_MAXNR		8
+
+/*Ioctl options which are to be passed while calling the ioctl*/
+#define RSZ_REQBUF		_IOWR(RSZ_IOC_BASE, 1,\
+					struct v4l2_requestbuffers)
+#define RSZ_QUERYBUF		_IOWR(RSZ_IOC_BASE, 2, struct v4l2_buffer)
+#define RSZ_S_PARAM		_IOWR(RSZ_IOC_BASE, 3, struct rsz_params)
+#define RSZ_G_PARAM		_IOWR(RSZ_IOC_BASE, 4, struct rsz_params)
+#define RSZ_RESIZE		_IOWR(RSZ_IOC_BASE, 5, __s32)
+#define RSZ_G_STATUS		_IOWR(RSZ_IOC_BASE, 6, struct rsz_status)
+#define RSZ_QUEUEBUF		_IOWR(RSZ_IOC_BASE, 7, struct v4l2_buffer)
+#define RSZ_GET_CROPSIZE	_IOWR(RSZ_IOC_BASE, 8, struct rsz_cropsize)
+
+#define RSZ_INTYPE_YCBCR422_16BIT	0
+#define RSZ_INTYPE_PLANAR_8BIT		1
+#define RSZ_PIX_FMT_UYVY		1	/* cb:y:cr:y */
+#define RSZ_PIX_FMT_YUYV		0	/* y:cb:y:cr */
+
+enum config_done {
+	STATE_CONFIGURED,			/* Resizer driver configured
+						 * by application.
+						 */
+	STATE_NOT_CONFIGURED			/* Resizer driver not
+						 * configured by application.
+						 */
+};
+
+/* Structure Definitions */
+
+/* used to luma enhancement options */
+
+struct rsz_yenh {
+	__s32 type;				/* represents luma enable or
+						 * disable.
+						 */
+	__u8 gain;			/* represents gain. */
+	__u8 slop;			/* represents slop. */
+	__u8 core;			/* Represents core value. */
+};
+
+/* Conatins all the parameters for resizing. This structure
+ * is used to configure resiser parameters
+ */
+struct rsz_params {
+	__s32 in_hsize;				/* input frame horizontal
+						 * size.
+						 */
+	__s32 in_vsize;				/* input frame vertical size */
+	__s32 in_pitch;				/* offset between two rows of
+						 * input frame.
+						 */
+	__s32 inptyp;				/* for determining 16 bit or
+						 * 8 bit data.
+						 */
+	__s32 vert_starting_pixel;		/* for specifying vertical
+						 * starting pixel in input.
+						 */
+	__s32 horz_starting_pixel;		/* for specyfing horizontal
+						 * starting pixel in input.
+						 */
+	__s32 cbilin;				/* # defined, filter with luma
+						 * or bi-linear interpolation.
+						 */
+	__s32 pix_fmt;				/* # defined, UYVY or YUYV */
+	__s32 out_hsize;			/* output frame horizontal
+						 * size.
+						 */
+	__s32 out_vsize;				/* output frame vertical
+						 * size.
+						 */
+	__s32 out_pitch;			/* offset between two rows of
+						 * output frame.
+						 */
+	__s32 hstph;				/* for specifying horizontal
+						 * starting phase.
+						 */
+	__s32 vstph;				/* for specifying vertical
+						 * starting phase.
+						 */
+	__u16 tap4filt_coeffs[32];		/* horizontal filter
+						 * coefficients.
+						 */
+	__u16 tap7filt_coeffs[32];		/* vertical filter
+						 * coefficients.
+						 */
+	struct rsz_yenh yenh_params;
+};
+
+/* Contains the status of hardware and channel */
+struct rsz_status {
+	__s32 chan_busy;				/* 1: channel is busy,
+						 * 0: channel is not busy
+						 */
+	__s32 hw_busy;				/* 1: hardware is busy,
+						 * 0: hardware is not busy
+						 */
+	__s32 src;				/* # defined, can be either
+						 * SD-RAM or CCDC/PREVIEWER
+						 */
+};
+
+/* Passed by application for getting crop size */
+struct rsz_cropsize {
+	__u32 hcrop;			/* Number of pixels per line
+						 * cropped in output image.
+						 */
+
+	__u32 vcrop;			/* Number of lines cropped
+						 * in output image.
+						 */
+};
+
+#endif
-- 
1.6.0.3

--- /tmp/Kconfig	2009-04-06 10:56:27.000000000 +0200
+++ git/drivers/media/video/Kconfig	2009-04-06 10:57:25.000000000 +0200
@@ -711,6 +711,9 @@
 	  CMOS camera controller.  This is the controller found on first-
 	  generation OLPC systems.
 
+
+source "drivers/media/video/isp/Kconfig"
+
 config VIDEO_OMAP3
         tristate "OMAP 3 Camera support"
 	select VIDEOBUF_GEN