[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, 1690 deletions

diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
deleted file mode 100644
index 20f981008faf..000000000000
--- a/drivers/media/video/fsl-viu.c
+++ /dev/null
@@ -1,1690 +0,0 @@
-/*
- * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- *  Freescale VIU video driver
- *
- *  Authors: Hongjun Chen <hong-jun.chen@freescale.com>
- *	     Porting to 2.6.35 by DENX Software Engineering,
- *	     Anatolij Gustschin <agust@denx.de>
- *
- * 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.
- *
- */
-
-#include <linux/module.h>
-#include <linux/clk.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/of_platform.h>
-#include <linux/slab.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/videobuf-dma-contig.h>
-
-#define DRV_NAME		"fsl_viu"
-#define VIU_VERSION		"0.5.1"
-
-#define BUFFER_TIMEOUT		msecs_to_jiffies(500)  /* 0.5 seconds */
-
-#define	VIU_VID_MEM_LIMIT	4	/* Video memory limit, in Mb */
-
-/* I2C address of video decoder chip is 0x4A */
-#define VIU_VIDEO_DECODER_ADDR	0x25
-
-/* supported controls */
-static struct v4l2_queryctrl viu_qctrl[] = {
-	{
-		.id            = V4L2_CID_BRIGHTNESS,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-		.name          = "Brightness",
-		.minimum       = 0,
-		.maximum       = 255,
-		.step          = 1,
-		.default_value = 127,
-		.flags         = 0,
-	}, {
-		.id            = V4L2_CID_CONTRAST,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-		.name          = "Contrast",
-		.minimum       = 0,
-		.maximum       = 255,
-		.step          = 0x1,
-		.default_value = 0x10,
-		.flags         = 0,
-	}, {
-		.id            = V4L2_CID_SATURATION,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-		.name          = "Saturation",
-		.minimum       = 0,
-		.maximum       = 255,
-		.step          = 0x1,
-		.default_value = 127,
-		.flags         = 0,
-	}, {
-		.id            = V4L2_CID_HUE,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-		.name          = "Hue",
-		.minimum       = -128,
-		.maximum       = 127,
-		.step          = 0x1,
-		.default_value = 0,
-		.flags         = 0,
-	}
-};
-
-static int qctl_regs[ARRAY_SIZE(viu_qctrl)];
-
-static int info_level;
-
-#define dprintk(level, fmt, arg...)					\
-	do {								\
-		if (level <= info_level)				\
-			printk(KERN_DEBUG "viu: " fmt , ## arg);	\
-	} while (0)
-
-/*
- * Basic structures
- */
-struct viu_fmt {
-	char  name[32];
-	u32   fourcc;		/* v4l2 format id */
-	u32   pixelformat;
-	int   depth;
-};
-
-static struct viu_fmt formats[] = {
-	{
-		.name		= "RGB-16 (5/B-6/G-5/R)",
-		.fourcc		= V4L2_PIX_FMT_RGB565,
-		.pixelformat	= V4L2_PIX_FMT_RGB565,
-		.depth		= 16,
-	}, {
-		.name		= "RGB-32 (A-R-G-B)",
-		.fourcc		= V4L2_PIX_FMT_RGB32,
-		.pixelformat	= V4L2_PIX_FMT_RGB32,
-		.depth		= 32,
-	}
-};
-
-struct viu_dev;
-struct viu_buf;
-
-/* buffer for one video frame */
-struct viu_buf {
-	/* common v4l buffer stuff -- must be first */
-	struct videobuf_buffer vb;
-	struct viu_fmt *fmt;
-};
-
-struct viu_dmaqueue {
-	struct viu_dev		*dev;
-	struct list_head	active;
-	struct list_head	queued;
-	struct timer_list	timeout;
-};
-
-struct viu_status {
-	u32 field_irq;
-	u32 vsync_irq;
-	u32 hsync_irq;
-	u32 vstart_irq;
-	u32 dma_end_irq;
-	u32 error_irq;
-};
-
-struct viu_reg {
-	u32 status_cfg;
-	u32 luminance;
-	u32 chroma_r;
-	u32 chroma_g;
-	u32 chroma_b;
-	u32 field_base_addr;
-	u32 dma_inc;
-	u32 picture_count;
-	u32 req_alarm;
-	u32 alpha;
-} __attribute__ ((packed));
-
-struct viu_dev {
-	struct v4l2_device	v4l2_dev;
-	struct mutex		lock;
-	spinlock_t		slock;
-	int			users;
-
-	struct device		*dev;
-	/* various device info */
-	struct video_device	*vdev;
-	struct viu_dmaqueue	vidq;
-	enum v4l2_field		capfield;
-	int			field;
-	int			first;
-	int			dma_done;
-
-	/* Hardware register area */
-	struct viu_reg		*vr;
-
-	/* Interrupt vector */
-	int			irq;
-	struct viu_status	irqs;
-
-	/* video overlay */
-	struct v4l2_framebuffer	ovbuf;
-	struct viu_fmt		*ovfmt;
-	unsigned int		ovenable;
-	enum v4l2_field		ovfield;
-
-	/* crop */
-	struct v4l2_rect	crop_current;
-
-	/* clock pointer */
-	struct clk		*clk;
-
-	/* decoder */
-	struct v4l2_subdev	*decoder;
-
-	v4l2_std_id		std;
-};
-
-struct viu_fh {
-	struct viu_dev		*dev;
-
-	/* video capture */
-	struct videobuf_queue	vb_vidq;
-	spinlock_t		vbq_lock; /* spinlock for the videobuf queue */
-
-	/* video overlay */
-	struct v4l2_window	win;
-	struct v4l2_clip	clips[1];
-
-	/* video capture */
-	struct viu_fmt		*fmt;
-	int			width, height, sizeimage;
-	enum v4l2_buf_type	type;
-};
-
-static struct viu_reg reg_val;
-
-/*
- * Macro definitions of VIU registers
- */
-
-/* STATUS_CONFIG register */
-enum status_config {
-	SOFT_RST		= 1 << 0,
-
-	ERR_MASK		= 0x0f << 4,	/* Error code mask */
-	ERR_NO			= 0x00,		/* No error */
-	ERR_DMA_V		= 0x01 << 4,	/* DMA in vertical active */
-	ERR_DMA_VB		= 0x02 << 4,	/* DMA in vertical blanking */
-	ERR_LINE_TOO_LONG	= 0x04 << 4,	/* Line too long */
-	ERR_TOO_MANG_LINES	= 0x05 << 4,	/* Too many lines in field */
-	ERR_LINE_TOO_SHORT	= 0x06 << 4,	/* Line too short */
-	ERR_NOT_ENOUGH_LINE	= 0x07 << 4,	/* Not enough lines in field */
-	ERR_FIFO_OVERFLOW	= 0x08 << 4,	/* FIFO overflow */
-	ERR_FIFO_UNDERFLOW	= 0x09 << 4,	/* FIFO underflow */
-	ERR_1bit_ECC		= 0x0a << 4,	/* One bit ECC error */
-	ERR_MORE_ECC		= 0x0b << 4,	/* Two/more bits ECC error */
-
-	INT_FIELD_EN		= 0x01 << 8,	/* Enable field interrupt */
-	INT_VSYNC_EN		= 0x01 << 9,	/* Enable vsync interrupt */
-	INT_HSYNC_EN		= 0x01 << 10,	/* Enable hsync interrupt */
-	INT_VSTART_EN		= 0x01 << 11,	/* Enable vstart interrupt */
-	INT_DMA_END_EN		= 0x01 << 12,	/* Enable DMA end interrupt */
-	INT_ERROR_EN		= 0x01 << 13,	/* Enable error interrupt */
-	INT_ECC_EN		= 0x01 << 14,	/* Enable ECC interrupt */
-
-	INT_FIELD_STATUS	= 0x01 << 16,	/* field interrupt status */
-	INT_VSYNC_STATUS	= 0x01 << 17,	/* vsync interrupt status */
-	INT_HSYNC_STATUS	= 0x01 << 18,	/* hsync interrupt status */
-	INT_VSTART_STATUS	= 0x01 << 19,	/* vstart interrupt status */
-	INT_DMA_END_STATUS	= 0x01 << 20,	/* DMA end interrupt status */
-	INT_ERROR_STATUS	= 0x01 << 21,	/* error interrupt status */
-
-	DMA_ACT			= 0x01 << 27,	/* Enable DMA transfer */
-	FIELD_NO		= 0x01 << 28,	/* Field number */
-	DITHER_ON		= 0x01 << 29,	/* Dithering is on */
-	ROUND_ON		= 0x01 << 30,	/* Round is on */
-	MODE_32BIT		= 0x01 << 31,	/* Data in RGBa888,
-						 * 0 in RGB565
-						 */
-};
-
-#define norm_maxw()	720
-#define norm_maxh()	576
-
-#define INT_ALL_STATUS	(INT_FIELD_STATUS | INT_VSYNC_STATUS | \
-			 INT_HSYNC_STATUS | INT_VSTART_STATUS | \
-			 INT_DMA_END_STATUS | INT_ERROR_STATUS)
-
-#define NUM_FORMATS	ARRAY_SIZE(formats)
-
-static irqreturn_t viu_intr(int irq, void *dev_id);
-
-struct viu_fmt *format_by_fourcc(int fourcc)
-{
-	int i;
-
-	for (i = 0; i < NUM_FORMATS; i++) {
-		if (formats[i].pixelformat == fourcc)
-			return formats + i;
-	}
-
-	dprintk(0, "unknown pixelformat:'%4.4s'\n", (char *)&fourcc);
-	return NULL;
-}
-
-void viu_start_dma(struct viu_dev *dev)
-{
-	struct viu_reg *vr = dev->vr;
-
-	dev->field = 0;
-
-	/* Enable DMA operation */
-	out_be32(&vr->status_cfg, SOFT_RST);
-	out_be32(&vr->status_cfg, INT_FIELD_EN);
-}
-
-void viu_stop_dma(struct viu_dev *dev)
-{
-	struct viu_reg *vr = dev->vr;
-	int cnt = 100;
-	u32 status_cfg;
-
-	out_be32(&vr->status_cfg, 0);
-
-	/* Clear pending interrupts */
-	status_cfg = in_be32(&vr->status_cfg);
-	if (status_cfg & 0x3f0000)
-		out_be32(&vr->status_cfg, status_cfg & 0x3f0000);
-
-	if (status_cfg & DMA_ACT) {
-		do {
-			status_cfg = in_be32(&vr->status_cfg);
-			if (status_cfg & INT_DMA_END_STATUS)
-				break;
-		} while (cnt--);
-
-		if (cnt < 0) {
-			/* timed out, issue soft reset */
-			out_be32(&vr->status_cfg, SOFT_RST);
-			out_be32(&vr->status_cfg, 0);
-		} else {
-			/* clear DMA_END and other pending irqs */
-			out_be32(&vr->status_cfg, status_cfg & 0x3f0000);
-		}
-	}
-
-	dev->field = 0;
-}
-
-static int restart_video_queue(struct viu_dmaqueue *vidq)
-{
-	struct viu_buf *buf, *prev;
-
-	dprintk(1, "%s vidq=0x%08lx\n", __func__, (unsigned long)vidq);
-	if (!list_empty(&vidq->active)) {
-		buf = list_entry(vidq->active.next, struct viu_buf, vb.queue);
-		dprintk(2, "restart_queue [%p/%d]: restart dma\n",
-			buf, buf->vb.i);
-
-		viu_stop_dma(vidq->dev);
-
-		/* cancel all outstanding capture requests */
-		list_for_each_entry_safe(buf, prev, &vidq->active, vb.queue) {
-			list_del(&buf->vb.queue);
-			buf->vb.state = VIDEOBUF_ERROR;
-			wake_up(&buf->vb.done);
-		}
-		mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
-		return 0;
-	}
-
-	prev = NULL;
-	for (;;) {
-		if (list_empty(&vidq->queued))
-			return 0;
-		buf = list_entry(vidq->queued.next, struct viu_buf, vb.queue);
-		if (prev == NULL) {
-			list_del(&buf->vb.queue);
-			list_add_tail(&buf->vb.queue, &vidq->active);
-
-			dprintk(1, "Restarting video dma\n");
-			viu_stop_dma(vidq->dev);
-			viu_start_dma(vidq->dev);
-
-			buf->vb.state = VIDEOBUF_ACTIVE;
-			mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
-			dprintk(2, "[%p/%d] restart_queue - first active\n",
-				buf, buf->vb.i);
-
-		} else if (prev->vb.width  == buf->vb.width  &&
-			   prev->vb.height == buf->vb.height &&
-			   prev->fmt       == buf->fmt) {
-			list_del(&buf->vb.queue);
-			list_add_tail(&buf->vb.queue, &vidq->active);
-			buf->vb.state = VIDEOBUF_ACTIVE;
-			dprintk(2, "[%p/%d] restart_queue - move to active\n",
-				buf, buf->vb.i);
-		} else {
-			return 0;
-		}
-		prev = buf;
-	}
-}
-
-static void viu_vid_timeout(unsigned long data)
-{
-	struct viu_dev *dev = (struct viu_dev *)data;
-	struct viu_buf *buf;
-	struct viu_dmaqueue *vidq = &dev->vidq;
-
-	while (!list_empty(&vidq->active)) {
-		buf = list_entry(vidq->active.next, struct viu_buf, vb.queue);
-		list_del(&buf->vb.queue);
-		buf->vb.state = VIDEOBUF_ERROR;
-		wake_up(&buf->vb.done);
-		dprintk(1, "viu/0: [%p/%d] timeout\n", buf, buf->vb.i);
-	}
-
-	restart_video_queue(vidq);
-}
-
-/*
- * Videobuf operations
- */
-static int buffer_setup(struct videobuf_queue *vq, unsigned int *count,
-			unsigned int *size)
-{
-	struct viu_fh *fh = vq->priv_data;
-
-	*size = fh->width * fh->height * fh->fmt->depth >> 3;
-	if (*count == 0)
-		*count = 32;
-
-	while (*size * *count > VIU_VID_MEM_LIMIT * 1024 * 1024)
-		(*count)--;
-
-	dprintk(1, "%s, count=%d, size=%d\n", __func__, *count, *size);
-	return 0;
-}
-
-static void free_buffer(struct videobuf_queue *vq, struct viu_buf *buf)
-{
-	struct videobuf_buffer *vb = &buf->vb;
-	void *vaddr = NULL;
-
-	BUG_ON(in_interrupt());
-
-	videobuf_waiton(vq, &buf->vb, 0, 0);
-
-	if (vq->int_ops && vq->int_ops->vaddr)
-		vaddr = vq->int_ops->vaddr(vb);
-
-	if (vaddr)
-		videobuf_dma_contig_free(vq, &buf->vb);
-
-	buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-inline int buffer_activate(struct viu_dev *dev, struct viu_buf *buf)
-{
-	struct viu_reg *vr = dev->vr;
-	int bpp;
-
-	/* setup the DMA base address */
-	reg_val.field_base_addr = videobuf_to_dma_contig(&buf->vb);
-
-	dprintk(1, "buffer_activate [%p/%d]: dma addr 0x%lx\n",
-		buf, buf->vb.i, (unsigned long)reg_val.field_base_addr);
-
-	/* interlace is on by default, set horizontal DMA increment */
-	reg_val.status_cfg = 0;
-	bpp = buf->fmt->depth >> 3;
-	switch (bpp) {
-	case 2:
-		reg_val.status_cfg &= ~MODE_32BIT;
-		reg_val.dma_inc = buf->vb.width * 2;
-		break;
-	case 4:
-		reg_val.status_cfg |= MODE_32BIT;
-		reg_val.dma_inc = buf->vb.width * 4;
-		break;
-	default:
-		dprintk(0, "doesn't support color depth(%d)\n",
-			bpp * 8);
-		return -EINVAL;
-	}
-
-	/* setup picture_count register */
-	reg_val.picture_count = (buf->vb.height / 2) << 16 |
-				buf->vb.width;
-
-	reg_val.status_cfg |= DMA_ACT | INT_DMA_END_EN | INT_FIELD_EN;
-
-	buf->vb.state = VIDEOBUF_ACTIVE;
-	dev->capfield = buf->vb.field;
-
-	/* reset dma increment if needed */
-	if (!V4L2_FIELD_HAS_BOTH(buf->vb.field))
-		reg_val.dma_inc = 0;
-
-	out_be32(&vr->dma_inc, reg_val.dma_inc);
-	out_be32(&vr->picture_count, reg_val.picture_count);
-	out_be32(&vr->field_base_addr, reg_val.field_base_addr);
-	mod_timer(&dev->vidq.timeout, jiffies + BUFFER_TIMEOUT);
-	return 0;
-}
-
-static int buffer_prepare(struct videobuf_queue *vq,
-			  struct videobuf_buffer *vb,
-			  enum v4l2_field field)
-{
-	struct viu_fh  *fh  = vq->priv_data;
-	struct viu_buf *buf = container_of(vb, struct viu_buf, vb);
-	int rc;
-
-	BUG_ON(fh->fmt == NULL);
-
-	if (fh->width  < 48 || fh->width  > norm_maxw() ||
-	    fh->height < 32 || fh->height > norm_maxh())
-		return -EINVAL;
-	buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
-	if (buf->vb.baddr != 0 && buf->vb.bsize < buf->vb.size)
-		return -EINVAL;
-
-	if (buf->fmt       != fh->fmt	 ||
-	    buf->vb.width  != fh->width  ||
-	    buf->vb.height != fh->height ||
-	    buf->vb.field  != field) {
-		buf->fmt       = fh->fmt;
-		buf->vb.width  = fh->width;
-		buf->vb.height = fh->height;
-		buf->vb.field  = field;
-	}
-
-	if (buf->vb.state == VIDEOBUF_NEEDS_INIT) {
-		rc = videobuf_iolock(vq, &buf->vb, NULL);
-		if (rc != 0)
-			goto fail;
-
-		buf->vb.width  = fh->width;
-		buf->vb.height = fh->height;
-		buf->vb.field  = field;
-		buf->fmt       = fh->fmt;
-	}
-
-	buf->vb.state = VIDEOBUF_PREPARED;
-	return 0;
-
-fail:
-	free_buffer(vq, buf);
-	return rc;
-}
-
-static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
-	struct viu_buf       *buf     = container_of(vb, struct viu_buf, vb);
-	struct viu_fh        *fh      = vq->priv_data;
-	struct viu_dev       *dev     = fh->dev;
-	struct viu_dmaqueue  *vidq    = &dev->vidq;
-	struct viu_buf       *prev;
-
-	if (!list_empty(&vidq->queued)) {
-		dprintk(1, "adding vb queue=0x%08lx\n",
-				(unsigned long)&buf->vb.queue);
-		dprintk(1, "vidq pointer 0x%p, queued 0x%p\n",
-				vidq, &vidq->queued);
-		dprintk(1, "dev %p, queued: self %p, next %p, head %p\n",
-			dev, &vidq->queued, vidq->queued.next,
-			vidq->queued.prev);
-		list_add_tail(&buf->vb.queue, &vidq->queued);
-		buf->vb.state = VIDEOBUF_QUEUED;
-		dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
-			buf, buf->vb.i);
-	} else if (list_empty(&vidq->active)) {
-		dprintk(1, "adding vb active=0x%08lx\n",
-				(unsigned long)&buf->vb.queue);
-		list_add_tail(&buf->vb.queue, &vidq->active);
-		buf->vb.state = VIDEOBUF_ACTIVE;
-		mod_timer(&vidq->timeout, jiffies+BUFFER_TIMEOUT);
-		dprintk(2, "[%p/%d] buffer_queue - first active\n",
-			buf, buf->vb.i);
-
-		buffer_activate(dev, buf);
-	} else {
-		dprintk(1, "adding vb queue2=0x%08lx\n",
-				(unsigned long)&buf->vb.queue);
-		prev = list_entry(vidq->active.prev, struct viu_buf, vb.queue);
-		if (prev->vb.width  == buf->vb.width  &&
-		    prev->vb.height == buf->vb.height &&
-		    prev->fmt       == buf->fmt) {
-			list_add_tail(&buf->vb.queue, &vidq->active);
-			buf->vb.state = VIDEOBUF_ACTIVE;
-			dprintk(2, "[%p/%d] buffer_queue - append to active\n",
-				buf, buf->vb.i);
-		} else {
-			list_add_tail(&buf->vb.queue, &vidq->queued);
-			buf->vb.state = VIDEOBUF_QUEUED;
-			dprintk(2, "[%p/%d] buffer_queue - first queued\n",
-				buf, buf->vb.i);
-		}
-	}
-}
-
-static void buffer_release(struct videobuf_queue *vq,
-				struct videobuf_buffer *vb)
-{
-	struct viu_buf *buf  = container_of(vb, struct viu_buf, vb);
-	struct viu_fh  *fh   = vq->priv_data;
-	struct viu_dev *dev  = (struct viu_dev *)fh->dev;
-
-	viu_stop_dma(dev);
-	free_buffer(vq, buf);
-}
-
-static struct videobuf_queue_ops viu_video_qops = {
-	.buf_setup      = buffer_setup,
-	.buf_prepare    = buffer_prepare,
-	.buf_queue      = buffer_queue,
-	.buf_release    = buffer_release,
-};
-
-/*
- * IOCTL vidioc handling
- */
-static int vidioc_querycap(struct file *file, void *priv,
-			   struct v4l2_capability *cap)
-{
-	strcpy(cap->driver, "viu");
-	strcpy(cap->card, "viu");
-	cap->capabilities =	V4L2_CAP_VIDEO_CAPTURE |
-				V4L2_CAP_STREAMING     |
-				V4L2_CAP_VIDEO_OVERLAY |
-				V4L2_CAP_READWRITE;
-	return 0;
-}
-
-static int vidioc_enum_fmt(struct file *file, void  *priv,
-					struct v4l2_fmtdesc *f)
-{
-	int index = f->index;
-
-	if (f->index > NUM_FORMATS)
-		return -EINVAL;
-
-	strlcpy(f->description, formats[index].name, sizeof(f->description));
-	f->pixelformat = formats[index].fourcc;
-	return 0;
-}
-
-static int vidioc_g_fmt_cap(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct viu_fh *fh = priv;
-
-	f->fmt.pix.width        = fh->width;
-	f->fmt.pix.height       = fh->height;
-	f->fmt.pix.field        = fh->vb_vidq.field;
-	f->fmt.pix.pixelformat  = fh->fmt->pixelformat;
-	f->fmt.pix.bytesperline =
-			(f->fmt.pix.width * fh->fmt->depth) >> 3;
-	f->fmt.pix.sizeimage	= fh->sizeimage;
-	return 0;
-}
-
-static int vidioc_try_fmt_cap(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct viu_fmt *fmt;
-	enum v4l2_field field;
-	unsigned int maxw, maxh;
-
-	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
-	if (!fmt) {
-		dprintk(1, "Fourcc format (0x%08x) invalid.",
-			f->fmt.pix.pixelformat);
-		return -EINVAL;
-	}
-
-	field = f->fmt.pix.field;
-
-	if (field == V4L2_FIELD_ANY) {
-		field = V4L2_FIELD_INTERLACED;
-	} else if (field != V4L2_FIELD_INTERLACED) {
-		dprintk(1, "Field type invalid.\n");
-		return -EINVAL;
-	}
-
-	maxw  = norm_maxw();
-	maxh  = norm_maxh();
-
-	f->fmt.pix.field = field;
-	if (f->fmt.pix.height < 32)
-		f->fmt.pix.height = 32;
-	if (f->fmt.pix.height > maxh)
-		f->fmt.pix.height = maxh;
-	if (f->fmt.pix.width < 48)
-		f->fmt.pix.width = 48;
-	if (f->fmt.pix.width > maxw)
-		f->fmt.pix.width = maxw;
-	f->fmt.pix.width &= ~0x03;
-	f->fmt.pix.bytesperline =
-		(f->fmt.pix.width * fmt->depth) >> 3;
-
-	return 0;
-}
-
-static int vidioc_s_fmt_cap(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct viu_fh *fh = priv;
-	int ret;
-
-	ret = vidioc_try_fmt_cap(file, fh, f);
-	if (ret < 0)
-		return ret;
-
-	fh->fmt           = format_by_fourcc(f->fmt.pix.pixelformat);
-	fh->width         = f->fmt.pix.width;
-	fh->height        = f->fmt.pix.height;
-	fh->sizeimage     = f->fmt.pix.sizeimage;
-	fh->vb_vidq.field = f->fmt.pix.field;
-	fh->type          = f->type;
-	dprintk(1, "set to pixelformat '%4.6s'\n", (char *)&fh->fmt->name);
-	return 0;
-}
-
-static int vidioc_g_fmt_overlay(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct viu_fh *fh = priv;
-
-	f->fmt.win = fh->win;
-	return 0;
-}
-
-static int verify_preview(struct viu_dev *dev, struct v4l2_window *win)
-{
-	enum v4l2_field field;
-	int maxw, maxh;
-
-	if (dev->ovbuf.base == NULL)
-		return -EINVAL;
-	if (dev->ovfmt == NULL)
-		return -EINVAL;
-	if (win->w.width < 48 || win->w.height < 32)
-		return -EINVAL;
-
-	field = win->field;
-	maxw  = dev->crop_current.width;
-	maxh  = dev->crop_current.height;
-
-	if (field == V4L2_FIELD_ANY) {
-		field = (win->w.height > maxh/2)
-			? V4L2_FIELD_INTERLACED
-			: V4L2_FIELD_TOP;
-	}
-	switch (field) {
-	case V4L2_FIELD_TOP:
-	case V4L2_FIELD_BOTTOM:
-		maxh = maxh / 2;
-		break;
-	case V4L2_FIELD_INTERLACED:
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	win->field = field;
-	if (win->w.width > maxw)
-		win->w.width = maxw;
-	if (win->w.height > maxh)
-		win->w.height = maxh;
-	return 0;
-}
-
-inline void viu_activate_overlay(struct viu_reg *viu_reg)
-{
-	struct viu_reg *vr = viu_reg;
-
-	out_be32(&vr->field_base_addr, reg_val.field_base_addr);
-	out_be32(&vr->dma_inc, reg_val.dma_inc);
-	out_be32(&vr->picture_count, reg_val.picture_count);
-}
-
-static int viu_setup_preview(struct viu_dev *dev, struct viu_fh *fh)
-{
-	int bpp;
-
-	dprintk(1, "%s %dx%d %s\n", __func__,
-		fh->win.w.width, fh->win.w.height, dev->ovfmt->name);
-
-	reg_val.status_cfg = 0;
-
-	/* setup window */
-	reg_val.picture_count = (fh->win.w.height / 2) << 16 |
-				fh->win.w.width;
-
-	/* setup color depth and dma increment */
-	bpp = dev->ovfmt->depth / 8;
-	switch (bpp) {
-	case 2:
-		reg_val.status_cfg &= ~MODE_32BIT;
-		reg_val.dma_inc = fh->win.w.width * 2;
-		break;
-	case 4:
-		reg_val.status_cfg |= MODE_32BIT;
-		reg_val.dma_inc = fh->win.w.width * 4;
-		break;
-	default:
-		dprintk(0, "device doesn't support color depth(%d)\n",
-			bpp * 8);
-		return -EINVAL;
-	}
-
-	dev->ovfield = fh->win.field;
-	if (!V4L2_FIELD_HAS_BOTH(dev->ovfield))
-		reg_val.dma_inc = 0;
-
-	reg_val.status_cfg |= DMA_ACT | INT_DMA_END_EN | INT_FIELD_EN;
-
-	/* setup the base address of the overlay buffer */
-	reg_val.field_base_addr = (u32)dev->ovbuf.base;
-
-	return 0;
-}
-
-static int vidioc_s_fmt_overlay(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	struct viu_fh  *fh  = priv;
-	struct viu_dev *dev = (struct viu_dev *)fh->dev;
-	unsigned long  flags;
-	int err;
-
-	err = verify_preview(dev, &f->fmt.win);
-	if (err)
-		return err;
-
-	fh->win = f->fmt.win;
-
-	spin_lock_irqsave(&dev->slock, flags);
-	viu_setup_preview(dev, fh);
-	spin_unlock_irqrestore(&dev->slock, flags);
-	return 0;
-}
-
-static int vidioc_try_fmt_overlay(struct file *file, void *priv,
-					struct v4l2_format *f)
-{
-	return 0;
-}
-
-static int vidioc_overlay(struct file *file, void *priv, unsigned int on)
-{
-	struct viu_fh  *fh  = priv;
-	struct viu_dev *dev = (struct viu_dev *)fh->dev;
-	unsigned long  flags;
-
-	if (on) {
-		spin_lock_irqsave(&dev->slock, flags);
-		viu_activate_overlay(dev->vr);
-		dev->ovenable = 1;
-
-		/* start dma */
-		viu_start_dma(dev);
-		spin_unlock_irqrestore(&dev->slock, flags);
-	} else {
-		viu_stop_dma(dev);
-		dev->ovenable = 0;
-	}
-
-	return 0;
-}
-
-int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
-{
-	struct viu_fh  *fh = priv;
-	struct viu_dev *dev = fh->dev;
-	struct v4l2_framebuffer *fb = arg;
-
-	*fb = dev->ovbuf;
-	fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
-	return 0;
-}
-
-int vidioc_s_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
-{
-	struct viu_fh  *fh = priv;
-	struct viu_dev *dev = fh->dev;
-	struct v4l2_framebuffer *fb = arg;
-	struct viu_fmt *fmt;
-
-	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
-		return -EPERM;
-
-	/* check args */
-	fmt = format_by_fourcc(fb->fmt.pixelformat);
-	if (fmt == NULL)
-		return -EINVAL;
-
-	/* ok, accept it */
-	dev->ovbuf = *fb;
-	dev->ovfmt = fmt;
-	if (dev->ovbuf.fmt.bytesperline == 0) {
-		dev->ovbuf.fmt.bytesperline =
-			dev->ovbuf.fmt.width * fmt->depth / 8;
-	}
-	return 0;
-}
-
-static int vidioc_reqbufs(struct file *file, void *priv,
-				struct v4l2_requestbuffers *p)
-{
-	struct viu_fh *fh = priv;
-
-	return videobuf_reqbufs(&fh->vb_vidq, p);
-}
-
-static int vidioc_querybuf(struct file *file, void *priv,
-					struct v4l2_buffer *p)
-{
-	struct viu_fh *fh = priv;
-
-	return videobuf_querybuf(&fh->vb_vidq, p);
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	struct viu_fh *fh = priv;
-
-	return videobuf_qbuf(&fh->vb_vidq, p);
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	struct viu_fh *fh = priv;
-
-	return videobuf_dqbuf(&fh->vb_vidq, p,
-				file->f_flags & O_NONBLOCK);
-}
-
-static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
-{
-	struct viu_fh *fh = priv;
-	struct viu_dev *dev = fh->dev;
-
-	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-	if (fh->type != i)
-		return -EINVAL;
-
-	if (dev->ovenable)
-		dev->ovenable = 0;
-
-	viu_start_dma(fh->dev);
-
-	return videobuf_streamon(&fh->vb_vidq);
-}
-
-static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
-{
-	struct viu_fh  *fh = priv;
-
-	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-	if (fh->type != i)
-		return -EINVAL;
-
-	viu_stop_dma(fh->dev);
-
-	return videobuf_streamoff(&fh->vb_vidq);
-}
-
-#define decoder_call(viu, o, f, args...) \
-	v4l2_subdev_call(viu->decoder, o, f, ##args)
-
-static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
-{
-	struct viu_fh *fh = priv;
-
-	decoder_call(fh->dev, video, querystd, std_id);
-	return 0;
-}
-
-static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id)
-{
-	struct viu_fh *fh = priv;
-
-	fh->dev->std = *id;
-	decoder_call(fh->dev, core, s_std, *id);
-	return 0;
-}
-
-static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std_id)
-{
-	struct viu_fh *fh = priv;
-
-	*std_id = fh->dev->std;
-	return 0;
-}
-
-/* only one input in this driver */
-static int vidioc_enum_input(struct file *file, void *priv,
-					struct v4l2_input *inp)
-{
-	struct viu_fh *fh = priv;
-
-	if (inp->index != 0)
-		return -EINVAL;
-
-	inp->type = V4L2_INPUT_TYPE_CAMERA;
-	inp->std = fh->dev->vdev->tvnorms;
-	strcpy(inp->name, "Camera");
-	return 0;
-}
-
-static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
-{
-	*i = 0;
-	return 0;
-}
-
-static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
-{
-	struct viu_fh *fh = priv;
-
-	if (i > 1)
-		return -EINVAL;
-
-	decoder_call(fh->dev, video, s_routing, i, 0, 0);
-	return 0;
-}
-
-/* Controls */
-static int vidioc_queryctrl(struct file *file, void *priv,
-				struct v4l2_queryctrl *qc)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) {
-		if (qc->id && qc->id == viu_qctrl[i].id) {
-			memcpy(qc, &(viu_qctrl[i]), sizeof(*qc));
-			return 0;
-		}
-	}
-	return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
-				struct v4l2_control *ctrl)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) {
-		if (ctrl->id == viu_qctrl[i].id) {
-			ctrl->value = qctl_regs[i];
-			return 0;
-		}
-	}
-	return -EINVAL;
-}
-static int vidioc_s_ctrl(struct file *file, void *priv,
-				struct v4l2_control *ctrl)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++) {
-		if (ctrl->id == viu_qctrl[i].id) {
-			if (ctrl->value < viu_qctrl[i].minimum
-				|| ctrl->value > viu_qctrl[i].maximum)
-					return -ERANGE;
-			qctl_regs[i] = ctrl->value;
-			return 0;
-		}
-	}
-	return -EINVAL;
-}
-
-inline void viu_activate_next_buf(struct viu_dev *dev,
-				struct viu_dmaqueue *viuq)
-{
-	struct viu_dmaqueue *vidq = viuq;
-	struct viu_buf *buf;
-
-	/* launch another DMA operation for an active/queued buffer */
-	if (!list_empty(&vidq->active)) {
-		buf = list_entry(vidq->active.next, struct viu_buf,
-					vb.queue);
-		dprintk(1, "start another queued buffer: 0x%p\n", buf);
-		buffer_activate(dev, buf);
-	} else if (!list_empty(&vidq->queued)) {
-		buf = list_entry(vidq->queued.next, struct viu_buf,
-					vb.queue);
-		list_del(&buf->vb.queue);
-
-		dprintk(1, "start another queued buffer: 0x%p\n", buf);
-		list_add_tail(&buf->vb.queue, &vidq->active);
-		buf->vb.state = VIDEOBUF_ACTIVE;
-		buffer_activate(dev, buf);
-	}
-}
-
-inline void viu_default_settings(struct viu_reg *viu_reg)
-{
-	struct viu_reg *vr = viu_reg;
-
-	out_be32(&vr->luminance, 0x9512A254);
-	out_be32(&vr->chroma_r, 0x03310000);
-	out_be32(&vr->chroma_g, 0x06600F38);
-	out_be32(&vr->chroma_b, 0x00000409);
-	out_be32(&vr->alpha, 0x000000ff);
-	out_be32(&vr->req_alarm, 0x00000090);
-	dprintk(1, "status reg: 0x%08x, field base: 0x%08x\n",
-		in_be32(&vr->status_cfg), in_be32(&vr->field_base_addr));
-}
-
-static void viu_overlay_intr(struct viu_dev *dev, u32 status)
-{
-	struct viu_reg *vr = dev->vr;
-
-	if (status & INT_DMA_END_STATUS)
-		dev->dma_done = 1;
-
-	if (status & INT_FIELD_STATUS) {
-		if (dev->dma_done) {
-			u32 addr = reg_val.field_base_addr;
-
-			dev->dma_done = 0;
-			if (status & FIELD_NO)
-				addr += reg_val.dma_inc;
-
-			out_be32(&vr->field_base_addr, addr);
-			out_be32(&vr->dma_inc, reg_val.dma_inc);
-			out_be32(&vr->status_cfg,
-				 (status & 0xffc0ffff) |
-				 (status & INT_ALL_STATUS) |
-				 reg_val.status_cfg);
-		} else if (status & INT_VSYNC_STATUS) {
-			out_be32(&vr->status_cfg,
-				 (status & 0xffc0ffff) |
-				 (status & INT_ALL_STATUS) |
-				 reg_val.status_cfg);
-		}
-	}
-}
-
-static void viu_capture_intr(struct viu_dev *dev, u32 status)
-{
-	struct viu_dmaqueue *vidq = &dev->vidq;
-	struct viu_reg *vr = dev->vr;
-	struct viu_buf *buf;
-	int field_num;
-	int need_two;
-	int dma_done = 0;
-
-	field_num = status & FIELD_NO;
-	need_two = V4L2_FIELD_HAS_BOTH(dev->capfield);
-
-	if (status & INT_DMA_END_STATUS) {
-		dma_done = 1;
-		if (((field_num == 0) && (dev->field == 0)) ||
-		    (field_num && (dev->field == 1)))
-			dev->field++;
-	}
-
-	if (status & INT_FIELD_STATUS) {
-		dprintk(1, "irq: field %d, done %d\n",
-			!!field_num, dma_done);
-		if (unlikely(dev->first)) {
-			if (field_num == 0) {
-				dev->first = 0;
-				dprintk(1, "activate first buf\n");
-				viu_activate_next_buf(dev, vidq);
-			} else
-				dprintk(1, "wait field 0\n");
-			return;
-		}
-
-		/* setup buffer address for next dma operation */
-		if (!list_empty(&vidq->active)) {
-			u32 addr = reg_val.field_base_addr;
-
-			if (field_num && need_two) {
-				addr += reg_val.dma_inc;
-				dprintk(1, "field 1, 0x%lx, dev field %d\n",
-					(unsigned long)addr, dev->field);
-			}
-			out_be32(&vr->field_base_addr, addr);
-			out_be32(&vr->dma_inc, reg_val.dma_inc);
-			out_be32(&vr->status_cfg,
-				 (status & 0xffc0ffff) |
-				 (status & INT_ALL_STATUS) |
-				 reg_val.status_cfg);
-			return;
-		}
-	}
-
-	if (dma_done && field_num && (dev->field == 2)) {
-		dev->field = 0;
-		buf = list_entry(vidq->active.next,
-				 struct viu_buf, vb.queue);
-		dprintk(1, "viu/0: [%p/%d] 0x%lx/0x%lx: dma complete\n",
-			buf, buf->vb.i,
-			(unsigned long)videobuf_to_dma_contig(&buf->vb),
-			(unsigned long)in_be32(&vr->field_base_addr));
-
-		if (waitqueue_active(&buf->vb.done)) {
-			list_del(&buf->vb.queue);
-			do_gettimeofday(&buf->vb.ts);
-			buf->vb.state = VIDEOBUF_DONE;
-			buf->vb.field_count++;
-			wake_up(&buf->vb.done);
-		}
-		/* activate next dma buffer */
-		viu_activate_next_buf(dev, vidq);
-	}
-}
-
-static irqreturn_t viu_intr(int irq, void *dev_id)
-{
-	struct viu_dev *dev  = (struct viu_dev *)dev_id;
-	struct viu_reg *vr = dev->vr;
-	u32 status;
-	u32 error;
-
-	status = in_be32(&vr->status_cfg);
-
-	if (status & INT_ERROR_STATUS) {
-		dev->irqs.error_irq++;
-		error = status & ERR_MASK;
-		if (error)
-			dprintk(1, "Err: error(%d), times:%d!\n",
-				error >> 4, dev->irqs.error_irq);
-		/* Clear interrupt error bit and error flags */
-		out_be32(&vr->status_cfg,
-			 (status & 0xffc0ffff) | INT_ERROR_STATUS);
-	}
-
-	if (status & INT_DMA_END_STATUS) {
-		dev->irqs.dma_end_irq++;
-		dev->dma_done = 1;
-		dprintk(2, "VIU DMA end interrupt times: %d\n",
-					dev->irqs.dma_end_irq);
-	}
-
-	if (status & INT_HSYNC_STATUS)
-		dev->irqs.hsync_irq++;
-
-	if (status & INT_FIELD_STATUS) {
-		dev->irqs.field_irq++;
-		dprintk(2, "VIU field interrupt times: %d\n",
-					dev->irqs.field_irq);
-	}
-
-	if (status & INT_VSTART_STATUS)
-		dev->irqs.vstart_irq++;
-
-	if (status & INT_VSYNC_STATUS) {
-		dev->irqs.vsync_irq++;
-		dprintk(2, "VIU vsync interrupt times: %d\n",
-			dev->irqs.vsync_irq);
-	}
-
-	/* clear all pending irqs */
-	status = in_be32(&vr->status_cfg);
-	out_be32(&vr->status_cfg,
-		 (status & 0xffc0ffff) | (status & INT_ALL_STATUS));
-
-	if (dev->ovenable) {
-		viu_overlay_intr(dev, status);
-		return IRQ_HANDLED;
-	}
-
-	/* Capture mode */
-	viu_capture_intr(dev, status);
-	return IRQ_HANDLED;
-}
-
-/*
- * File operations for the device
- */
-static int viu_open(struct file *file)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct viu_dev *dev = video_get_drvdata(vdev);
-	struct viu_fh *fh;
-	struct viu_reg *vr;
-	int minor = vdev->minor;
-	u32 status_cfg;
-	int i;
-
-	dprintk(1, "viu: open (minor=%d)\n", minor);
-
-	dev->users++;
-	if (dev->users > 1) {
-		dev->users--;
-		return -EBUSY;
-	}
-
-	vr = dev->vr;
-
-	dprintk(1, "open minor=%d type=%s users=%d\n", minor,
-		v4l2_type_names[V4L2_BUF_TYPE_VIDEO_CAPTURE], dev->users);
-
-	if (mutex_lock_interruptible(&dev->lock)) {
-		dev->users--;
-		return -ERESTARTSYS;
-	}
-
-	/* allocate and initialize per filehandle data */
-	fh = kzalloc(sizeof(*fh), GFP_KERNEL);
-	if (!fh) {
-		dev->users--;
-		mutex_unlock(&dev->lock);
-		return -ENOMEM;
-	}
-
-	file->private_data = fh;
-	fh->dev = dev;
-
-	fh->type     = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_RGB32);
-	fh->width    = norm_maxw();
-	fh->height   = norm_maxh();
-	dev->crop_current.width  = fh->width;
-	dev->crop_current.height = fh->height;
-
-	/* Put all controls at a sane state */
-	for (i = 0; i < ARRAY_SIZE(viu_qctrl); i++)
-		qctl_regs[i] = viu_qctrl[i].default_value;
-
-	dprintk(1, "Open: fh=0x%08lx, dev=0x%08lx, dev->vidq=0x%08lx\n",
-		(unsigned long)fh, (unsigned long)dev,
-		(unsigned long)&dev->vidq);
-	dprintk(1, "Open: list_empty queued=%d\n",
-		list_empty(&dev->vidq.queued));
-	dprintk(1, "Open: list_empty active=%d\n",
-		list_empty(&dev->vidq.active));
-
-	viu_default_settings(vr);
-
-	status_cfg = in_be32(&vr->status_cfg);
-	out_be32(&vr->status_cfg,
-		 status_cfg & ~(INT_VSYNC_EN | INT_HSYNC_EN |
-				INT_FIELD_EN | INT_VSTART_EN |
-				INT_DMA_END_EN | INT_ERROR_EN | INT_ECC_EN));
-
-	status_cfg = in_be32(&vr->status_cfg);
-	out_be32(&vr->status_cfg, status_cfg | INT_ALL_STATUS);
-
-	spin_lock_init(&fh->vbq_lock);
-	videobuf_queue_dma_contig_init(&fh->vb_vidq, &viu_video_qops,
-				       dev->dev, &fh->vbq_lock,
-				       fh->type, V4L2_FIELD_INTERLACED,
-				       sizeof(struct viu_buf), fh,
-				       &fh->dev->lock);
-	mutex_unlock(&dev->lock);
-	return 0;
-}
-
-static ssize_t viu_read(struct file *file, char __user *data, size_t count,
-			loff_t *ppos)
-{
-	struct viu_fh *fh = file->private_data;
-	struct viu_dev *dev = fh->dev;
-	int ret = 0;
-
-	dprintk(2, "%s\n", __func__);
-	if (dev->ovenable)
-		dev->ovenable = 0;
-
-	if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-		if (mutex_lock_interruptible(&dev->lock))
-			return -ERESTARTSYS;
-		viu_start_dma(dev);
-		ret = videobuf_read_stream(&fh->vb_vidq, data, count,
-				ppos, 0, file->f_flags & O_NONBLOCK);
-		mutex_unlock(&dev->lock);
-		return ret;
-	}
-	return 0;
-}
-
-static unsigned int viu_poll(struct file *file, struct poll_table_struct *wait)
-{
-	struct viu_fh *fh = file->private_data;
-	struct videobuf_queue *q = &fh->vb_vidq;
-	struct viu_dev *dev = fh->dev;
-	unsigned int res;
-
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
-		return POLLERR;
-
-	mutex_lock(&dev->lock);
-	res = videobuf_poll_stream(file, q, wait);
-	mutex_unlock(&dev->lock);
-	return res;
-}
-
-static int viu_release(struct file *file)
-{
-	struct viu_fh *fh = file->private_data;
-	struct viu_dev *dev = fh->dev;
-	int minor = video_devdata(file)->minor;
-
-	mutex_lock(&dev->lock);
-	viu_stop_dma(dev);
-	videobuf_stop(&fh->vb_vidq);
-	videobuf_mmap_free(&fh->vb_vidq);
-	mutex_unlock(&dev->lock);
-
-	kfree(fh);
-
-	dev->users--;
-	dprintk(1, "close (minor=%d, users=%d)\n",
-		minor, dev->users);
-	return 0;
-}
-
-void viu_reset(struct viu_reg *reg)
-{
-	out_be32(&reg->status_cfg, 0);
-	out_be32(&reg->luminance, 0x9512a254);
-	out_be32(&reg->chroma_r, 0x03310000);
-	out_be32(&reg->chroma_g, 0x06600f38);
-	out_be32(&reg->chroma_b, 0x00000409);
-	out_be32(&reg->field_base_addr, 0);
-	out_be32(&reg->dma_inc, 0);
-	out_be32(&reg->picture_count, 0x01e002d0);
-	out_be32(&reg->req_alarm, 0x00000090);
-	out_be32(&reg->alpha, 0x000000ff);
-}
-
-static int viu_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct viu_fh *fh = file->private_data;
-	struct viu_dev *dev = fh->dev;
-	int ret;
-
-	dprintk(1, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
-
-	if (mutex_lock_interruptible(&dev->lock))
-		return -ERESTARTSYS;
-	ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
-	mutex_unlock(&dev->lock);
-
-	dprintk(1, "vma start=0x%08lx, size=%ld, ret=%d\n",
-		(unsigned long)vma->vm_start,
-		(unsigned long)vma->vm_end-(unsigned long)vma->vm_start,
-		ret);
-
-	return ret;
-}
-
-static struct v4l2_file_operations viu_fops = {
-	.owner		= THIS_MODULE,
-	.open		= viu_open,
-	.release	= viu_release,
-	.read		= viu_read,
-	.poll		= viu_poll,
-	.unlocked_ioctl	= video_ioctl2, /* V4L2 ioctl handler */
-	.mmap		= viu_mmap,
-};
-
-static const struct v4l2_ioctl_ops viu_ioctl_ops = {
-	.vidioc_querycap	= vidioc_querycap,
-	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt,
-	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_cap,
-	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_cap,
-	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_cap,
-	.vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt,
-	.vidioc_g_fmt_vid_overlay = vidioc_g_fmt_overlay,
-	.vidioc_try_fmt_vid_overlay = vidioc_try_fmt_overlay,
-	.vidioc_s_fmt_vid_overlay = vidioc_s_fmt_overlay,
-	.vidioc_overlay	      = vidioc_overlay,
-	.vidioc_g_fbuf	      = vidioc_g_fbuf,
-	.vidioc_s_fbuf	      = vidioc_s_fbuf,
-	.vidioc_reqbufs       = vidioc_reqbufs,
-	.vidioc_querybuf      = vidioc_querybuf,
-	.vidioc_qbuf          = vidioc_qbuf,
-	.vidioc_dqbuf         = vidioc_dqbuf,
-	.vidioc_g_std         = vidioc_g_std,
-	.vidioc_s_std         = vidioc_s_std,
-	.vidioc_querystd      = vidioc_querystd,
-	.vidioc_enum_input    = vidioc_enum_input,
-	.vidioc_g_input       = vidioc_g_input,
-	.vidioc_s_input       = vidioc_s_input,
-	.vidioc_queryctrl     = vidioc_queryctrl,
-	.vidioc_g_ctrl        = vidioc_g_ctrl,
-	.vidioc_s_ctrl        = vidioc_s_ctrl,
-	.vidioc_streamon      = vidioc_streamon,
-	.vidioc_streamoff     = vidioc_streamoff,
-};
-
-static struct video_device viu_template = {
-	.name		= "FSL viu",
-	.fops		= &viu_fops,
-	.minor		= -1,
-	.ioctl_ops	= &viu_ioctl_ops,
-	.release	= video_device_release,
-
-	.tvnorms        = V4L2_STD_NTSC_M | V4L2_STD_PAL,
-	.current_norm   = V4L2_STD_NTSC_M,
-};
-
-static int __devinit viu_of_probe(struct platform_device *op)
-{
-	struct viu_dev *viu_dev;
-	struct video_device *vdev;
-	struct resource r;
-	struct viu_reg __iomem *viu_regs;
-	struct i2c_adapter *ad;
-	int ret, viu_irq;
-
-	ret = of_address_to_resource(op->dev.of_node, 0, &r);
-	if (ret) {
-		dev_err(&op->dev, "Can't parse device node resource\n");
-		return -ENODEV;
-	}
-
-	viu_irq = irq_of_parse_and_map(op->dev.of_node, 0);
-	if (viu_irq == NO_IRQ) {
-		dev_err(&op->dev, "Error while mapping the irq\n");
-		return -EINVAL;
-	}
-
-	/* request mem region */
-	if (!devm_request_mem_region(&op->dev, r.start,
-				     sizeof(struct viu_reg), DRV_NAME)) {
-		dev_err(&op->dev, "Error while requesting mem region\n");
-		ret = -EBUSY;
-		goto err;
-	}
-
-	/* remap registers */
-	viu_regs = devm_ioremap(&op->dev, r.start, sizeof(struct viu_reg));
-	if (!viu_regs) {
-		dev_err(&op->dev, "Can't map register set\n");
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	/* Prepare our private structure */
-	viu_dev = devm_kzalloc(&op->dev, sizeof(struct viu_dev), GFP_ATOMIC);
-	if (!viu_dev) {
-		dev_err(&op->dev, "Can't allocate private structure\n");
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	viu_dev->vr = viu_regs;
-	viu_dev->irq = viu_irq;
-	viu_dev->dev = &op->dev;
-
-	/* init video dma queues */
-	INIT_LIST_HEAD(&viu_dev->vidq.active);
-	INIT_LIST_HEAD(&viu_dev->vidq.queued);
-
-	snprintf(viu_dev->v4l2_dev.name,
-		 sizeof(viu_dev->v4l2_dev.name), "%s", "VIU");
-	ret = v4l2_device_register(viu_dev->dev, &viu_dev->v4l2_dev);
-	if (ret < 0) {
-		dev_err(&op->dev, "v4l2_device_register() failed: %d\n", ret);
-		goto err;
-	}
-
-	ad = i2c_get_adapter(0);
-	viu_dev->decoder = v4l2_i2c_new_subdev(&viu_dev->v4l2_dev, ad,
-			"saa7113", VIU_VIDEO_DECODER_ADDR, NULL);
-
-	viu_dev->vidq.timeout.function = viu_vid_timeout;
-	viu_dev->vidq.timeout.data     = (unsigned long)viu_dev;
-	init_timer(&viu_dev->vidq.timeout);
-	viu_dev->first = 1;
-
-	/* Allocate memory for video device */
-	vdev = video_device_alloc();
-	if (vdev == NULL) {
-		ret = -ENOMEM;
-		goto err_vdev;
-	}
-
-	memcpy(vdev, &viu_template, sizeof(viu_template));
-
-	vdev->v4l2_dev = &viu_dev->v4l2_dev;
-
-	viu_dev->vdev = vdev;
-
-	/* initialize locks */
-	mutex_init(&viu_dev->lock);
-	viu_dev->vdev->lock = &viu_dev->lock;
-	spin_lock_init(&viu_dev->slock);
-
-	video_set_drvdata(viu_dev->vdev, viu_dev);
-
-	mutex_lock(&viu_dev->lock);
-
-	ret = video_register_device(viu_dev->vdev, VFL_TYPE_GRABBER, -1);
-	if (ret < 0) {
-		video_device_release(viu_dev->vdev);
-		goto err_vdev;
-	}
-
-	/* enable VIU clock */
-	viu_dev->clk = clk_get(&op->dev, "viu_clk");
-	if (IS_ERR(viu_dev->clk)) {
-		dev_err(&op->dev, "failed to find the clock module!\n");
-		ret = -ENODEV;
-		goto err_clk;
-	} else {
-		clk_enable(viu_dev->clk);
-	}
-
-	/* reset VIU module */
-	viu_reset(viu_dev->vr);
-
-	/* install interrupt handler */
-	if (request_irq(viu_dev->irq, viu_intr, 0, "viu", (void *)viu_dev)) {
-		dev_err(&op->dev, "Request VIU IRQ failed.\n");
-		ret = -ENODEV;
-		goto err_irq;
-	}
-
-	mutex_unlock(&viu_dev->lock);
-
-	dev_info(&op->dev, "Freescale VIU Video Capture Board\n");
-	return ret;
-
-err_irq:
-	clk_disable(viu_dev->clk);
-	clk_put(viu_dev->clk);
-err_clk:
-	video_unregister_device(viu_dev->vdev);
-err_vdev:
-	mutex_unlock(&viu_dev->lock);
-	i2c_put_adapter(ad);
-	v4l2_device_unregister(&viu_dev->v4l2_dev);
-err:
-	irq_dispose_mapping(viu_irq);
-	return ret;
-}
-
-static int __devexit viu_of_remove(struct platform_device *op)
-{
-	struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev);
-	struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev);
-	struct v4l2_subdev *sdev = list_entry(v4l2_dev->subdevs.next,
-					      struct v4l2_subdev, list);
-	struct i2c_client *client = v4l2_get_subdevdata(sdev);
-
-	free_irq(dev->irq, (void *)dev);
-	irq_dispose_mapping(dev->irq);
-
-	clk_disable(dev->clk);
-	clk_put(dev->clk);
-
-	video_unregister_device(dev->vdev);
-	i2c_put_adapter(client->adapter);
-	v4l2_device_unregister(&dev->v4l2_dev);
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int viu_suspend(struct platform_device *op, pm_message_t state)
-{
-	struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev);
-	struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev);
-
-	clk_disable(dev->clk);
-	return 0;
-}
-
-static int viu_resume(struct platform_device *op)
-{
-	struct v4l2_device *v4l2_dev = dev_get_drvdata(&op->dev);
-	struct viu_dev *dev = container_of(v4l2_dev, struct viu_dev, v4l2_dev);
-
-	clk_enable(dev->clk);
-	return 0;
-}
-#endif
-
-/*
- * Initialization and module stuff
- */
-static struct of_device_id mpc512x_viu_of_match[] = {
-	{
-		.compatible = "fsl,mpc5121-viu",
-	},
-	{},
-};
-MODULE_DEVICE_TABLE(of, mpc512x_viu_of_match);
-
-static struct platform_driver viu_of_platform_driver = {
-	.probe = viu_of_probe,
-	.remove = __devexit_p(viu_of_remove),
-#ifdef CONFIG_PM
-	.suspend = viu_suspend,
-	.resume = viu_resume,
-#endif
-	.driver = {
-		.name = DRV_NAME,
-		.owner = THIS_MODULE,
-		.of_match_table = mpc512x_viu_of_match,
-	},
-};
-
-module_platform_driver(viu_of_platform_driver);
-
-MODULE_DESCRIPTION("Freescale Video-In(VIU)");
-MODULE_AUTHOR("Hongjun Chen");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(VIU_VERSION);