media: platform: rename davinci/ to ti/davinci/

As the end goal is to have platform drivers split by vendor,
rename davinci/ to ti/davinci/.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

1 files changed, 0 insertions, 1408 deletions

diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c
deleted file mode 100644
index fca148b66471..000000000000
--- a/drivers/media/platform/davinci/vpif_display.c
+++ /dev/null
@@ -1,1408 +0,0 @@
-/*
- * vpif-display - VPIF display driver
- * Display driver for TI DaVinci VPIF
- *
- * Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com/
- * Copyright (C) 2014 Lad, Prabhakar <prabhakar.csengg@gmail.com>
- *
- * 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 version 2.
- *
- * This program is distributed .as is. WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-
-#include <media/v4l2-ioctl.h>
-
-#include "vpif.h"
-#include "vpif_display.h"
-
-MODULE_DESCRIPTION("TI DaVinci VPIF Display driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(VPIF_DISPLAY_VERSION);
-
-#define VPIF_V4L2_STD (V4L2_STD_525_60 | V4L2_STD_625_50)
-
-#define vpif_err(fmt, arg...)	v4l2_err(&vpif_obj.v4l2_dev, fmt, ## arg)
-#define vpif_dbg(level, debug, fmt, arg...)	\
-		v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg)
-
-static int debug = 1;
-
-module_param(debug, int, 0644);
-
-MODULE_PARM_DESC(debug, "Debug level 0-1");
-
-#define VPIF_DRIVER_NAME	"vpif_display"
-MODULE_ALIAS("platform:" VPIF_DRIVER_NAME);
-
-/* Is set to 1 in case of SDTV formats, 2 in case of HDTV formats. */
-static int ycmux_mode;
-
-static u8 channel_first_int[VPIF_NUMOBJECTS][2] = { {1, 1} };
-
-static struct vpif_device vpif_obj = { {NULL} };
-static struct device *vpif_dev;
-static void vpif_calculate_offsets(struct channel_obj *ch);
-static void vpif_config_addr(struct channel_obj *ch, int muxmode);
-
-static inline
-struct vpif_disp_buffer *to_vpif_buffer(struct vb2_v4l2_buffer *vb)
-{
-	return container_of(vb, struct vpif_disp_buffer, vb);
-}
-
-/**
- * vpif_buffer_prepare :  callback function for buffer prepare
- * @vb: ptr to vb2_buffer
- *
- * This is the callback function for buffer prepare when vb2_qbuf()
- * function is called. The buffer is prepared and user space virtual address
- * or user address is converted into  physical address
- */
-static int vpif_buffer_prepare(struct vb2_buffer *vb)
-{
-	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
-	struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue);
-	struct common_obj *common;
-
-	common = &ch->common[VPIF_VIDEO_INDEX];
-
-	vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage);
-	if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
-		return -EINVAL;
-
-	vbuf->field = common->fmt.fmt.pix.field;
-
-	if (vb->vb2_queue->type != V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) {
-		unsigned long addr = vb2_dma_contig_plane_dma_addr(vb, 0);
-
-		if (!ISALIGNED(addr + common->ytop_off) ||
-			!ISALIGNED(addr + common->ybtm_off) ||
-			!ISALIGNED(addr + common->ctop_off) ||
-			!ISALIGNED(addr + common->cbtm_off)) {
-			vpif_err("buffer offset not aligned to 8 bytes\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-/**
- * vpif_buffer_queue_setup : Callback function for buffer setup.
- * @vq: vb2_queue ptr
- * @nbuffers: ptr to number of buffers requested by application
- * @nplanes: contains number of distinct video planes needed to hold a frame
- * @sizes: contains the size (in bytes) of each plane.
- * @alloc_devs: ptr to allocation context
- *
- * This callback function is called when reqbuf() is called to adjust
- * the buffer count and buffer size
- */
-static int vpif_buffer_queue_setup(struct vb2_queue *vq,
-				unsigned int *nbuffers, unsigned int *nplanes,
-				unsigned int sizes[], struct device *alloc_devs[])
-{
-	struct channel_obj *ch = vb2_get_drv_priv(vq);
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	unsigned size = common->fmt.fmt.pix.sizeimage;
-
-	if (*nplanes) {
-		if (sizes[0] < size)
-			return -EINVAL;
-		size = sizes[0];
-	}
-
-	if (vq->num_buffers + *nbuffers < 3)
-		*nbuffers = 3 - vq->num_buffers;
-
-	*nplanes = 1;
-	sizes[0] = size;
-
-	/* Calculate the offset for Y and C data  in the buffer */
-	vpif_calculate_offsets(ch);
-
-	return 0;
-}
-
-/**
- * vpif_buffer_queue : Callback function to add buffer to DMA queue
- * @vb: ptr to vb2_buffer
- *
- * This callback function queues the buffer to DMA engine
- */
-static void vpif_buffer_queue(struct vb2_buffer *vb)
-{
-	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
-	struct vpif_disp_buffer *buf = to_vpif_buffer(vbuf);
-	struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue);
-	struct common_obj *common;
-	unsigned long flags;
-
-	common = &ch->common[VPIF_VIDEO_INDEX];
-
-	/* add the buffer to the DMA queue */
-	spin_lock_irqsave(&common->irqlock, flags);
-	list_add_tail(&buf->list, &common->dma_queue);
-	spin_unlock_irqrestore(&common->irqlock, flags);
-}
-
-/**
- * vpif_start_streaming : Starts the DMA engine for streaming
- * @vq: ptr to vb2_buffer
- * @count: number of buffers
- */
-static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
-{
-	struct vpif_display_config *vpif_config_data =
-					vpif_dev->platform_data;
-	struct channel_obj *ch = vb2_get_drv_priv(vq);
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	struct vpif_params *vpif = &ch->vpifparams;
-	struct vpif_disp_buffer *buf, *tmp;
-	unsigned long addr, flags;
-	int ret;
-
-	spin_lock_irqsave(&common->irqlock, flags);
-
-	/* Initialize field_id */
-	ch->field_id = 0;
-
-	/* clock settings */
-	if (vpif_config_data->set_clock) {
-		ret = vpif_config_data->set_clock(ch->vpifparams.std_info.
-		ycmux_mode, ch->vpifparams.std_info.hd_sd);
-		if (ret < 0) {
-			vpif_err("can't set clock\n");
-			goto err;
-		}
-	}
-
-	/* set the parameters and addresses */
-	ret = vpif_set_video_params(vpif, ch->channel_id + 2);
-	if (ret < 0)
-		goto err;
-
-	ycmux_mode = ret;
-	vpif_config_addr(ch, ret);
-	/* Get the next frame from the buffer queue */
-	common->next_frm = common->cur_frm =
-			    list_entry(common->dma_queue.next,
-				       struct vpif_disp_buffer, list);
-
-	list_del(&common->cur_frm->list);
-	spin_unlock_irqrestore(&common->irqlock, flags);
-
-	addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb.vb2_buf, 0);
-	common->set_addr((addr + common->ytop_off),
-			    (addr + common->ybtm_off),
-			    (addr + common->ctop_off),
-			    (addr + common->cbtm_off));
-
-	/*
-	 * Set interrupt for both the fields in VPIF
-	 * Register enable channel in VPIF register
-	 */
-	channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1;
-	if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
-		channel2_intr_assert();
-		channel2_intr_enable(1);
-		enable_channel2(1);
-		if (vpif_config_data->chan_config[VPIF_CHANNEL2_VIDEO].clip_en)
-			channel2_clipping_enable(1);
-	}
-
-	if (VPIF_CHANNEL3_VIDEO == ch->channel_id || ycmux_mode == 2) {
-		channel3_intr_assert();
-		channel3_intr_enable(1);
-		enable_channel3(1);
-		if (vpif_config_data->chan_config[VPIF_CHANNEL3_VIDEO].clip_en)
-			channel3_clipping_enable(1);
-	}
-
-	return 0;
-
-err:
-	list_for_each_entry_safe(buf, tmp, &common->dma_queue, list) {
-		list_del(&buf->list);
-		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED);
-	}
-	spin_unlock_irqrestore(&common->irqlock, flags);
-
-	return ret;
-}
-
-/**
- * vpif_stop_streaming : Stop the DMA engine
- * @vq: ptr to vb2_queue
- *
- * This callback stops the DMA engine and any remaining buffers
- * in the DMA queue are released.
- */
-static void vpif_stop_streaming(struct vb2_queue *vq)
-{
-	struct channel_obj *ch = vb2_get_drv_priv(vq);
-	struct common_obj *common;
-	unsigned long flags;
-
-	common = &ch->common[VPIF_VIDEO_INDEX];
-
-	/* Disable channel */
-	if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
-		enable_channel2(0);
-		channel2_intr_enable(0);
-	}
-	if (VPIF_CHANNEL3_VIDEO == ch->channel_id || ycmux_mode == 2) {
-		enable_channel3(0);
-		channel3_intr_enable(0);
-	}
-
-	/* release all active buffers */
-	spin_lock_irqsave(&common->irqlock, flags);
-	if (common->cur_frm == common->next_frm) {
-		vb2_buffer_done(&common->cur_frm->vb.vb2_buf,
-				VB2_BUF_STATE_ERROR);
-	} else {
-		if (common->cur_frm)
-			vb2_buffer_done(&common->cur_frm->vb.vb2_buf,
-					VB2_BUF_STATE_ERROR);
-		if (common->next_frm)
-			vb2_buffer_done(&common->next_frm->vb.vb2_buf,
-					VB2_BUF_STATE_ERROR);
-	}
-
-	while (!list_empty(&common->dma_queue)) {
-		common->next_frm = list_entry(common->dma_queue.next,
-						struct vpif_disp_buffer, list);
-		list_del(&common->next_frm->list);
-		vb2_buffer_done(&common->next_frm->vb.vb2_buf,
-				VB2_BUF_STATE_ERROR);
-	}
-	spin_unlock_irqrestore(&common->irqlock, flags);
-}
-
-static const struct vb2_ops video_qops = {
-	.queue_setup		= vpif_buffer_queue_setup,
-	.wait_prepare		= vb2_ops_wait_prepare,
-	.wait_finish		= vb2_ops_wait_finish,
-	.buf_prepare		= vpif_buffer_prepare,
-	.start_streaming	= vpif_start_streaming,
-	.stop_streaming		= vpif_stop_streaming,
-	.buf_queue		= vpif_buffer_queue,
-};
-
-static void process_progressive_mode(struct common_obj *common)
-{
-	unsigned long addr;
-
-	spin_lock(&common->irqlock);
-	/* Get the next buffer from buffer queue */
-	common->next_frm = list_entry(common->dma_queue.next,
-				struct vpif_disp_buffer, list);
-	/* Remove that buffer from the buffer queue */
-	list_del(&common->next_frm->list);
-	spin_unlock(&common->irqlock);
-
-	/* Set top and bottom field addrs in VPIF registers */
-	addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb.vb2_buf, 0);
-	common->set_addr(addr + common->ytop_off,
-				 addr + common->ybtm_off,
-				 addr + common->ctop_off,
-				 addr + common->cbtm_off);
-}
-
-static void process_interlaced_mode(int fid, struct common_obj *common)
-{
-	/* device field id and local field id are in sync */
-	/* If this is even field */
-	if (0 == fid) {
-		if (common->cur_frm == common->next_frm)
-			return;
-
-		/* one frame is displayed If next frame is
-		 *  available, release cur_frm and move on */
-		/* Copy frame display time */
-		common->cur_frm->vb.vb2_buf.timestamp = ktime_get_ns();
-		/* Change status of the cur_frm */
-		vb2_buffer_done(&common->cur_frm->vb.vb2_buf,
-					VB2_BUF_STATE_DONE);
-		/* Make cur_frm pointing to next_frm */
-		common->cur_frm = common->next_frm;
-
-	} else if (1 == fid) {	/* odd field */
-		spin_lock(&common->irqlock);
-		if (list_empty(&common->dma_queue)
-		    || (common->cur_frm != common->next_frm)) {
-			spin_unlock(&common->irqlock);
-			return;
-		}
-		spin_unlock(&common->irqlock);
-		/* one field is displayed configure the next
-		 * frame if it is available else hold on current
-		 * frame */
-		/* Get next from the buffer queue */
-		process_progressive_mode(common);
-	}
-}
-
-/*
- * vpif_channel_isr: It changes status of the displayed buffer, takes next
- * buffer from the queue and sets its address in VPIF registers
- */
-static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
-{
-	struct vpif_device *dev = &vpif_obj;
-	struct channel_obj *ch;
-	struct common_obj *common;
-	int fid = -1, i;
-	int channel_id;
-
-	channel_id = *(int *)(dev_id);
-	if (!vpif_intr_status(channel_id + 2))
-		return IRQ_NONE;
-
-	ch = dev->dev[channel_id];
-	for (i = 0; i < VPIF_NUMOBJECTS; i++) {
-		common = &ch->common[i];
-		/* If streaming is started in this channel */
-
-		if (1 == ch->vpifparams.std_info.frm_fmt) {
-			spin_lock(&common->irqlock);
-			if (list_empty(&common->dma_queue)) {
-				spin_unlock(&common->irqlock);
-				continue;
-			}
-			spin_unlock(&common->irqlock);
-
-			/* Progressive mode */
-			if (!channel_first_int[i][channel_id]) {
-				/* Mark status of the cur_frm to
-				 * done and unlock semaphore on it */
-				common->cur_frm->vb.vb2_buf.timestamp =
-						ktime_get_ns();
-				vb2_buffer_done(&common->cur_frm->vb.vb2_buf,
-						VB2_BUF_STATE_DONE);
-				/* Make cur_frm pointing to next_frm */
-				common->cur_frm = common->next_frm;
-			}
-
-			channel_first_int[i][channel_id] = 0;
-			process_progressive_mode(common);
-		} else {
-			/* Interlaced mode */
-			/* If it is first interrupt, ignore it */
-
-			if (channel_first_int[i][channel_id]) {
-				channel_first_int[i][channel_id] = 0;
-				continue;
-			}
-
-			if (0 == i) {
-				ch->field_id ^= 1;
-				/* Get field id from VPIF registers */
-				fid = vpif_channel_getfid(ch->channel_id + 2);
-				/* If fid does not match with stored field id */
-				if (fid != ch->field_id) {
-					/* Make them in sync */
-					if (0 == fid)
-						ch->field_id = fid;
-
-					return IRQ_HANDLED;
-				}
-			}
-			process_interlaced_mode(fid, common);
-		}
-	}
-
-	return IRQ_HANDLED;
-}
-
-static int vpif_update_std_info(struct channel_obj *ch)
-{
-	struct video_obj *vid_ch = &ch->video;
-	struct vpif_params *vpifparams = &ch->vpifparams;
-	struct vpif_channel_config_params *std_info = &vpifparams->std_info;
-	const struct vpif_channel_config_params *config;
-
-	int i;
-
-	for (i = 0; i < vpif_ch_params_count; i++) {
-		config = &vpif_ch_params[i];
-		if (config->hd_sd == 0) {
-			vpif_dbg(2, debug, "SD format\n");
-			if (config->stdid & vid_ch->stdid) {
-				memcpy(std_info, config, sizeof(*config));
-				break;
-			}
-		}
-	}
-
-	if (i == vpif_ch_params_count) {
-		vpif_dbg(1, debug, "Format not found\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int vpif_update_resolution(struct channel_obj *ch)
-{
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	struct video_obj *vid_ch = &ch->video;
-	struct vpif_params *vpifparams = &ch->vpifparams;
-	struct vpif_channel_config_params *std_info = &vpifparams->std_info;
-
-	if (!vid_ch->stdid && !vid_ch->dv_timings.bt.height)
-		return -EINVAL;
-
-	if (vid_ch->stdid) {
-		if (vpif_update_std_info(ch))
-			return -EINVAL;
-	}
-
-	common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
-	common->fmt.fmt.pix.width = std_info->width;
-	common->fmt.fmt.pix.height = std_info->height;
-	vpif_dbg(1, debug, "Pixel details: Width = %d,Height = %d\n",
-			common->fmt.fmt.pix.width, common->fmt.fmt.pix.height);
-
-	/* Set height and width paramateres */
-	common->height = std_info->height;
-	common->width = std_info->width;
-	common->fmt.fmt.pix.sizeimage = common->height * common->width * 2;
-
-	if (vid_ch->stdid)
-		common->fmt.fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
-	else
-		common->fmt.fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
-
-	if (ch->vpifparams.std_info.frm_fmt)
-		common->fmt.fmt.pix.field = V4L2_FIELD_NONE;
-	else
-		common->fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
-
-	return 0;
-}
-
-/*
- * vpif_calculate_offsets: This function calculates buffers offset for Y and C
- * in the top and bottom field
- */
-static void vpif_calculate_offsets(struct channel_obj *ch)
-{
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	struct vpif_params *vpifparams = &ch->vpifparams;
-	enum v4l2_field field = common->fmt.fmt.pix.field;
-	struct video_obj *vid_ch = &ch->video;
-	unsigned int hpitch, sizeimage;
-
-	if (V4L2_FIELD_ANY == common->fmt.fmt.pix.field) {
-		if (ch->vpifparams.std_info.frm_fmt)
-			vid_ch->buf_field = V4L2_FIELD_NONE;
-		else
-			vid_ch->buf_field = V4L2_FIELD_INTERLACED;
-	} else {
-		vid_ch->buf_field = common->fmt.fmt.pix.field;
-	}
-
-	sizeimage = common->fmt.fmt.pix.sizeimage;
-
-	hpitch = common->fmt.fmt.pix.bytesperline;
-	if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
-	    (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) {
-		common->ytop_off = 0;
-		common->ybtm_off = hpitch;
-		common->ctop_off = sizeimage / 2;
-		common->cbtm_off = sizeimage / 2 + hpitch;
-	} else if (V4L2_FIELD_SEQ_TB == vid_ch->buf_field) {
-		common->ytop_off = 0;
-		common->ybtm_off = sizeimage / 4;
-		common->ctop_off = sizeimage / 2;
-		common->cbtm_off = common->ctop_off + sizeimage / 4;
-	} else if (V4L2_FIELD_SEQ_BT == vid_ch->buf_field) {
-		common->ybtm_off = 0;
-		common->ytop_off = sizeimage / 4;
-		common->cbtm_off = sizeimage / 2;
-		common->ctop_off = common->cbtm_off + sizeimage / 4;
-	}
-
-	if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
-	    (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) {
-		vpifparams->video_params.storage_mode = 1;
-	} else {
-		vpifparams->video_params.storage_mode = 0;
-	}
-
-	if (ch->vpifparams.std_info.frm_fmt == 1) {
-		vpifparams->video_params.hpitch =
-		    common->fmt.fmt.pix.bytesperline;
-	} else {
-		if ((field == V4L2_FIELD_ANY) ||
-			(field == V4L2_FIELD_INTERLACED))
-			vpifparams->video_params.hpitch =
-			    common->fmt.fmt.pix.bytesperline * 2;
-		else
-			vpifparams->video_params.hpitch =
-			    common->fmt.fmt.pix.bytesperline;
-	}
-
-	ch->vpifparams.video_params.stdid = ch->vpifparams.std_info.stdid;
-}
-
-static void vpif_config_addr(struct channel_obj *ch, int muxmode)
-{
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
-	if (VPIF_CHANNEL3_VIDEO == ch->channel_id) {
-		common->set_addr = ch3_set_videobuf_addr;
-	} else {
-		if (2 == muxmode)
-			common->set_addr = ch2_set_videobuf_addr_yc_nmux;
-		else
-			common->set_addr = ch2_set_videobuf_addr;
-	}
-}
-
-/* functions implementing ioctls */
-/**
- * vpif_querycap() - QUERYCAP handler
- * @file: file ptr
- * @priv: file handle
- * @cap: ptr to v4l2_capability structure
- */
-static int vpif_querycap(struct file *file, void  *priv,
-				struct v4l2_capability *cap)
-{
-	struct vpif_display_config *config = vpif_dev->platform_data;
-
-	strscpy(cap->driver, VPIF_DRIVER_NAME, sizeof(cap->driver));
-	snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
-		 dev_name(vpif_dev));
-	strscpy(cap->card, config->card_name, sizeof(cap->card));
-
-	return 0;
-}
-
-static int vpif_enum_fmt_vid_out(struct file *file, void  *priv,
-					struct v4l2_fmtdesc *fmt)
-{
-	if (fmt->index != 0)
-		return -EINVAL;
-
-	/* Fill in the information about format */
-	fmt->pixelformat = V4L2_PIX_FMT_YUV422P;
-	return 0;
-}
-
-static int vpif_g_fmt_vid_out(struct file *file, void *priv,
-				struct v4l2_format *fmt)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
-	/* Check the validity of the buffer type */
-	if (common->fmt.type != fmt->type)
-		return -EINVAL;
-
-	if (vpif_update_resolution(ch))
-		return -EINVAL;
-	*fmt = common->fmt;
-	return 0;
-}
-
-static int vpif_try_fmt_vid_out(struct file *file, void *priv,
-				struct v4l2_format *fmt)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
-
-	/*
-	 * to suppress v4l-compliance warnings silently correct
-	 * the pixelformat
-	 */
-	if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P)
-		pixfmt->pixelformat = common->fmt.fmt.pix.pixelformat;
-
-	if (vpif_update_resolution(ch))
-		return -EINVAL;
-
-	pixfmt->colorspace = common->fmt.fmt.pix.colorspace;
-	pixfmt->field = common->fmt.fmt.pix.field;
-	pixfmt->bytesperline = common->fmt.fmt.pix.width;
-	pixfmt->width = common->fmt.fmt.pix.width;
-	pixfmt->height = common->fmt.fmt.pix.height;
-	pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height * 2;
-
-	return 0;
-}
-
-static int vpif_s_fmt_vid_out(struct file *file, void *priv,
-				struct v4l2_format *fmt)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
-	int ret;
-
-	if (vb2_is_busy(&common->buffer_queue))
-		return -EBUSY;
-
-	ret = vpif_try_fmt_vid_out(file, priv, fmt);
-	if (ret)
-		return ret;
-
-	/* store the pix format in the channel object */
-	common->fmt.fmt.pix = *pixfmt;
-
-	/* store the format in the channel object */
-	common->fmt = *fmt;
-	return 0;
-}
-
-static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)
-{
-	struct vpif_display_config *config = vpif_dev->platform_data;
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	struct vpif_display_chan_config *chan_cfg;
-	struct v4l2_output output;
-	int ret;
-
-	if (!config->chan_config[ch->channel_id].outputs)
-		return -ENODATA;
-
-	chan_cfg = &config->chan_config[ch->channel_id];
-	output = chan_cfg->outputs[ch->output_idx].output;
-	if (output.capabilities != V4L2_OUT_CAP_STD)
-		return -ENODATA;
-
-	if (vb2_is_busy(&common->buffer_queue))
-		return -EBUSY;
-
-
-	if (!(std_id & VPIF_V4L2_STD))
-		return -EINVAL;
-
-	/* Call encoder subdevice function to set the standard */
-	ch->video.stdid = std_id;
-	memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings));
-	/* Get the information about the standard */
-	if (vpif_update_resolution(ch))
-		return -EINVAL;
-
-	common->fmt.fmt.pix.bytesperline = common->fmt.fmt.pix.width;
-
-	ret = v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 1, video,
-						s_std_output, std_id);
-	if (ret < 0) {
-		vpif_err("Failed to set output standard\n");
-		return ret;
-	}
-
-	ret = v4l2_device_call_until_err(&vpif_obj.v4l2_dev, 1, video,
-							s_std, std_id);
-	if (ret < 0)
-		vpif_err("Failed to set standard for sub devices\n");
-	return ret;
-}
-
-static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
-{
-	struct vpif_display_config *config = vpif_dev->platform_data;
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct vpif_display_chan_config *chan_cfg;
-	struct v4l2_output output;
-
-	if (!config->chan_config[ch->channel_id].outputs)
-		return -ENODATA;
-
-	chan_cfg = &config->chan_config[ch->channel_id];
-	output = chan_cfg->outputs[ch->output_idx].output;
-	if (output.capabilities != V4L2_OUT_CAP_STD)
-		return -ENODATA;
-
-	*std = ch->video.stdid;
-	return 0;
-}
-
-static int vpif_enum_output(struct file *file, void *fh,
-				struct v4l2_output *output)
-{
-
-	struct vpif_display_config *config = vpif_dev->platform_data;
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct vpif_display_chan_config *chan_cfg;
-
-	chan_cfg = &config->chan_config[ch->channel_id];
-	if (output->index >= chan_cfg->output_count) {
-		vpif_dbg(1, debug, "Invalid output index\n");
-		return -EINVAL;
-	}
-
-	*output = chan_cfg->outputs[output->index].output;
-	return 0;
-}
-
-/**
- * vpif_output_to_subdev() - Maps output to sub device
- * @vpif_cfg: global config ptr
- * @chan_cfg: channel config ptr
- * @index: Given output index from application
- *
- * lookup the sub device information for a given output index.
- * we report all the output to application. output table also
- * has sub device name for the each output
- */
-static int
-vpif_output_to_subdev(struct vpif_display_config *vpif_cfg,
-		      struct vpif_display_chan_config *chan_cfg, int index)
-{
-	struct vpif_subdev_info *subdev_info;
-	const char *subdev_name;
-	int i;
-
-	vpif_dbg(2, debug, "vpif_output_to_subdev\n");
-
-	if (!chan_cfg->outputs)
-		return -1;
-
-	subdev_name = chan_cfg->outputs[index].subdev_name;
-	if (!subdev_name)
-		return -1;
-
-	/* loop through the sub device list to get the sub device info */
-	for (i = 0; i < vpif_cfg->subdev_count; i++) {
-		subdev_info = &vpif_cfg->subdevinfo[i];
-		if (!strcmp(subdev_info->name, subdev_name))
-			return i;
-	}
-	return -1;
-}
-
-/**
- * vpif_set_output() - Select an output
- * @vpif_cfg: global config ptr
- * @ch: channel
- * @index: Given output index from application
- *
- * Select the given output.
- */
-static int vpif_set_output(struct vpif_display_config *vpif_cfg,
-		      struct channel_obj *ch, int index)
-{
-	struct vpif_display_chan_config *chan_cfg =
-		&vpif_cfg->chan_config[ch->channel_id];
-	struct v4l2_subdev *sd = NULL;
-	u32 input = 0, output = 0;
-	int sd_index;
-	int ret;
-
-	sd_index = vpif_output_to_subdev(vpif_cfg, chan_cfg, index);
-	if (sd_index >= 0)
-		sd = vpif_obj.sd[sd_index];
-
-	if (sd) {
-		input = chan_cfg->outputs[index].input_route;
-		output = chan_cfg->outputs[index].output_route;
-		ret = v4l2_subdev_call(sd, video, s_routing, input, output, 0);
-		if (ret < 0 && ret != -ENOIOCTLCMD) {
-			vpif_err("Failed to set output\n");
-			return ret;
-		}
-
-	}
-	ch->output_idx = index;
-	ch->sd = sd;
-	if (chan_cfg->outputs)
-		/* update tvnorms from the sub device output info */
-		ch->video_dev.tvnorms = chan_cfg->outputs[index].output.std;
-	return 0;
-}
-
-static int vpif_s_output(struct file *file, void *priv, unsigned int i)
-{
-	struct vpif_display_config *config = vpif_dev->platform_data;
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct vpif_display_chan_config *chan_cfg;
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-
-	if (vb2_is_busy(&common->buffer_queue))
-		return -EBUSY;
-
-	chan_cfg = &config->chan_config[ch->channel_id];
-
-	if (i >= chan_cfg->output_count)
-		return -EINVAL;
-
-	return vpif_set_output(config, ch, i);
-}
-
-static int vpif_g_output(struct file *file, void *priv, unsigned int *i)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-
-	*i = ch->output_idx;
-
-	return 0;
-}
-
-/**
- * vpif_enum_dv_timings() - ENUM_DV_TIMINGS handler
- * @file: file ptr
- * @priv: file handle
- * @timings: input timings
- */
-static int
-vpif_enum_dv_timings(struct file *file, void *priv,
-		     struct v4l2_enum_dv_timings *timings)
-{
-	struct vpif_display_config *config = vpif_dev->platform_data;
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct vpif_display_chan_config *chan_cfg;
-	struct v4l2_output output;
-	int ret;
-
-	if (!config->chan_config[ch->channel_id].outputs)
-		return -ENODATA;
-
-	chan_cfg = &config->chan_config[ch->channel_id];
-	output = chan_cfg->outputs[ch->output_idx].output;
-	if (output.capabilities != V4L2_OUT_CAP_DV_TIMINGS)
-		return -ENODATA;
-
-	timings->pad = 0;
-
-	ret = v4l2_subdev_call(ch->sd, pad, enum_dv_timings, timings);
-	if (ret == -ENOIOCTLCMD || ret == -ENODEV)
-		return -EINVAL;
-	return ret;
-}
-
-/**
- * vpif_s_dv_timings() - S_DV_TIMINGS handler
- * @file: file ptr
- * @priv: file handle
- * @timings: digital video timings
- */
-static int vpif_s_dv_timings(struct file *file, void *priv,
-		struct v4l2_dv_timings *timings)
-{
-	struct vpif_display_config *config = vpif_dev->platform_data;
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct vpif_params *vpifparams = &ch->vpifparams;
-	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
-	struct vpif_channel_config_params *std_info = &vpifparams->std_info;
-	struct video_obj *vid_ch = &ch->video;
-	struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt;
-	struct vpif_display_chan_config *chan_cfg;
-	struct v4l2_output output;
-	int ret;
-
-	if (!config->chan_config[ch->channel_id].outputs)
-		return -ENODATA;
-
-	chan_cfg = &config->chan_config[ch->channel_id];
-	output = chan_cfg->outputs[ch->output_idx].output;
-	if (output.capabilities != V4L2_OUT_CAP_DV_TIMINGS)
-		return -ENODATA;
-
-	if (vb2_is_busy(&common->buffer_queue))
-		return -EBUSY;
-
-	if (timings->type != V4L2_DV_BT_656_1120) {
-		vpif_dbg(2, debug, "Timing type not defined\n");
-		return -EINVAL;
-	}
-
-	/* Configure subdevice timings, if any */
-	ret = v4l2_subdev_call(ch->sd, video, s_dv_timings, timings);
-	if (ret == -ENOIOCTLCMD || ret == -ENODEV)
-		ret = 0;
-	if (ret < 0) {
-		vpif_dbg(2, debug, "Error setting custom DV timings\n");
-		return ret;
-	}
-
-	if (!(timings->bt.width && timings->bt.height &&
-				(timings->bt.hbackporch ||
-				 timings->bt.hfrontporch ||
-				 timings->bt.hsync) &&
-				timings->bt.vfrontporch &&
-				(timings->bt.vbackporch ||
-				 timings->bt.vsync))) {
-		vpif_dbg(2, debug, "Timings for width, height, horizontal back porch, horizontal sync, horizontal front porch, vertical back porch, vertical sync and vertical back porch must be defined\n");
-		return -EINVAL;
-	}
-
-	vid_ch->dv_timings = *timings;
-
-	/* Configure video port timings */
-
-	std_info->eav2sav = V4L2_DV_BT_BLANKING_WIDTH(bt) - 8;
-	std_info->sav2eav = bt->width;
-
-	std_info->l1 = 1;
-	std_info->l3 = bt->vsync + bt->vbackporch + 1;
-
-	std_info->vsize = V4L2_DV_BT_FRAME_HEIGHT(bt);
-	if (bt->interlaced) {
-		if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) {
-			std_info->l5 = std_info->vsize/2 -
-				(bt->vfrontporch - 1);
-			std_info->l7 = std_info->vsize/2 + 1;
-			std_info->l9 = std_info->l7 + bt->il_vsync +
-				bt->il_vbackporch + 1;
-			std_info->l11 = std_info->vsize -
-				(bt->il_vfrontporch - 1);
-		} else {
-			vpif_dbg(2, debug, "Required timing values for interlaced BT format missing\n");
-			return -EINVAL;
-		}
-	} else {
-		std_info->l5 = std_info->vsize - (bt->vfrontporch - 1);
-	}
-	strscpy(std_info->name, "Custom timings BT656/1120",
-		sizeof(std_info->name));
-	std_info->width = bt->width;
-	std_info->height = bt->height;
-	std_info->frm_fmt = bt->interlaced ? 0 : 1;
-	std_info->ycmux_mode = 0;
-	std_info->capture_format = 0;
-	std_info->vbi_supported = 0;
-	std_info->hd_sd = 1;
-	std_info->stdid = 0;
-	vid_ch->stdid = 0;
-
-	return 0;
-}
-
-/**
- * vpif_g_dv_timings() - G_DV_TIMINGS handler
- * @file: file ptr
- * @priv: file handle
- * @timings: digital video timings
- */
-static int vpif_g_dv_timings(struct file *file, void *priv,
-		struct v4l2_dv_timings *timings)
-{
-	struct vpif_display_config *config = vpif_dev->platform_data;
-	struct video_device *vdev = video_devdata(file);
-	struct channel_obj *ch = video_get_drvdata(vdev);
-	struct vpif_display_chan_config *chan_cfg;
-	struct video_obj *vid_ch = &ch->video;
-	struct v4l2_output output;
-
-	if (!config->chan_config[ch->channel_id].outputs)
-		goto error;
-
-	chan_cfg = &config->chan_config[ch->channel_id];
-	output = chan_cfg->outputs[ch->output_idx].output;
-
-	if (output.capabilities != V4L2_OUT_CAP_DV_TIMINGS)
-		goto error;
-
-	*timings = vid_ch->dv_timings;
-
-	return 0;
-error:
-	return -ENODATA;
-}
-
-/*
- * vpif_log_status() - Status information
- * @file: file ptr
- * @priv: file handle
- *
- * Returns zero.
- */
-static int vpif_log_status(struct file *filep, void *priv)
-{
-	/* status for sub devices */
-	v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status);
-
-	return 0;
-}
-
-/* vpif display ioctl operations */
-static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
-	.vidioc_querycap		= vpif_querycap,
-	.vidioc_enum_fmt_vid_out	= vpif_enum_fmt_vid_out,
-	.vidioc_g_fmt_vid_out		= vpif_g_fmt_vid_out,
-	.vidioc_s_fmt_vid_out		= vpif_s_fmt_vid_out,
-	.vidioc_try_fmt_vid_out		= vpif_try_fmt_vid_out,
-
-	.vidioc_reqbufs			= vb2_ioctl_reqbufs,
-	.vidioc_create_bufs		= vb2_ioctl_create_bufs,
-	.vidioc_querybuf		= vb2_ioctl_querybuf,
-	.vidioc_qbuf			= vb2_ioctl_qbuf,
-	.vidioc_dqbuf			= vb2_ioctl_dqbuf,
-	.vidioc_expbuf			= vb2_ioctl_expbuf,
-	.vidioc_streamon		= vb2_ioctl_streamon,
-	.vidioc_streamoff		= vb2_ioctl_streamoff,
-
-	.vidioc_s_std			= vpif_s_std,
-	.vidioc_g_std			= vpif_g_std,
-
-	.vidioc_enum_output		= vpif_enum_output,
-	.vidioc_s_output		= vpif_s_output,
-	.vidioc_g_output		= vpif_g_output,
-
-	.vidioc_enum_dv_timings		= vpif_enum_dv_timings,
-	.vidioc_s_dv_timings		= vpif_s_dv_timings,
-	.vidioc_g_dv_timings		= vpif_g_dv_timings,
-
-	.vidioc_log_status		= vpif_log_status,
-};
-
-static const struct v4l2_file_operations vpif_fops = {
-	.owner		= THIS_MODULE,
-	.open		= v4l2_fh_open,
-	.release	= vb2_fop_release,
-	.unlocked_ioctl	= video_ioctl2,
-	.mmap		= vb2_fop_mmap,
-	.poll		= vb2_fop_poll
-};
-
-/*Configure the channels, buffer sizei, request irq */
-static int initialize_vpif(void)
-{
-	int free_channel_objects_index;
-	int err, i, j;
-
-	/* Allocate memory for six channel objects */
-	for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
-		vpif_obj.dev[i] =
-		    kzalloc(sizeof(struct channel_obj), GFP_KERNEL);
-		/* If memory allocation fails, return error */
-		if (!vpif_obj.dev[i]) {
-			free_channel_objects_index = i;
-			err = -ENOMEM;
-			goto vpif_init_free_channel_objects;
-		}
-	}
-
-	return 0;
-
-vpif_init_free_channel_objects:
-	for (j = 0; j < free_channel_objects_index; j++)
-		kfree(vpif_obj.dev[j]);
-	return err;
-}
-
-static void free_vpif_objs(void)
-{
-	int i;
-
-	for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++)
-		kfree(vpif_obj.dev[i]);
-}
-
-static int vpif_probe_complete(void)
-{
-	struct common_obj *common;
-	struct video_device *vdev;
-	struct channel_obj *ch;
-	struct vb2_queue *q;
-	int j, err, k;
-
-	for (j = 0; j < VPIF_DISPLAY_MAX_DEVICES; j++) {
-		ch = vpif_obj.dev[j];
-		/* Initialize field of the channel objects */
-		for (k = 0; k < VPIF_NUMOBJECTS; k++) {
-			common = &ch->common[k];
-			spin_lock_init(&common->irqlock);
-			mutex_init(&common->lock);
-			common->set_addr = NULL;
-			common->ytop_off = 0;
-			common->ybtm_off = 0;
-			common->ctop_off = 0;
-			common->cbtm_off = 0;
-			common->cur_frm = NULL;
-			common->next_frm = NULL;
-			memset(&common->fmt, 0, sizeof(common->fmt));
-		}
-		ch->initialized = 0;
-		if (vpif_obj.config->subdev_count)
-			ch->sd = vpif_obj.sd[0];
-		ch->channel_id = j;
-
-		memset(&ch->vpifparams, 0, sizeof(ch->vpifparams));
-
-		ch->common[VPIF_VIDEO_INDEX].fmt.type =
-						V4L2_BUF_TYPE_VIDEO_OUTPUT;
-
-		/* select output 0 */
-		err = vpif_set_output(vpif_obj.config, ch, 0);
-		if (err)
-			goto probe_out;
-
-		/* set initial format */
-		ch->video.stdid = V4L2_STD_525_60;
-		memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings));
-		vpif_update_resolution(ch);
-
-		/* Initialize vb2 queue */
-		q = &common->buffer_queue;
-		q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
-		q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
-		q->drv_priv = ch;
-		q->ops = &video_qops;
-		q->mem_ops = &vb2_dma_contig_memops;
-		q->buf_struct_size = sizeof(struct vpif_disp_buffer);
-		q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-		q->min_buffers_needed = 1;
-		q->lock = &common->lock;
-		q->dev = vpif_dev;
-		err = vb2_queue_init(q);
-		if (err) {
-			vpif_err("vpif_display: vb2_queue_init() failed\n");
-			goto probe_out;
-		}
-
-		INIT_LIST_HEAD(&common->dma_queue);
-
-		/* register video device */
-		vpif_dbg(1, debug, "channel=%p,channel->video_dev=%p\n",
-			 ch, &ch->video_dev);
-
-		/* Initialize the video_device structure */
-		vdev = &ch->video_dev;
-		strscpy(vdev->name, VPIF_DRIVER_NAME, sizeof(vdev->name));
-		vdev->release = video_device_release_empty;
-		vdev->fops = &vpif_fops;
-		vdev->ioctl_ops = &vpif_ioctl_ops;
-		vdev->v4l2_dev = &vpif_obj.v4l2_dev;
-		vdev->vfl_dir = VFL_DIR_TX;
-		vdev->queue = q;
-		vdev->lock = &common->lock;
-		vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
-		video_set_drvdata(&ch->video_dev, ch);
-		err = video_register_device(vdev, VFL_TYPE_VIDEO,
-					    (j ? 3 : 2));
-		if (err < 0)
-			goto probe_out;
-	}
-
-	return 0;
-
-probe_out:
-	for (k = 0; k < j; k++) {
-		ch = vpif_obj.dev[k];
-		video_unregister_device(&ch->video_dev);
-	}
-	return err;
-}
-
-/*
- * vpif_probe: This function creates device entries by register itself to the
- * V4L2 driver and initializes fields of each channel objects
- */
-static __init int vpif_probe(struct platform_device *pdev)
-{
-	struct vpif_subdev_info *subdevdata;
-	struct i2c_adapter *i2c_adap;
-	int subdev_count;
-	int res_idx = 0;
-	int i, err;
-
-	if (!pdev->dev.platform_data) {
-		dev_warn(&pdev->dev, "Missing platform data.  Giving up.\n");
-		return -EINVAL;
-	}
-
-	vpif_dev = &pdev->dev;
-	err = initialize_vpif();
-
-	if (err) {
-		v4l2_err(vpif_dev->driver, "Error initializing vpif\n");
-		return err;
-	}
-
-	err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev);
-	if (err) {
-		v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n");
-		goto vpif_free;
-	}
-
-	do {
-		int irq;
-
-		err = platform_get_irq_optional(pdev, res_idx);
-		if (err < 0 && err != -ENXIO)
-			goto vpif_unregister;
-		if (err > 0)
-			irq = err;
-		else
-			break;
-
-		err = devm_request_irq(&pdev->dev, irq, vpif_channel_isr,
-				       IRQF_SHARED, VPIF_DRIVER_NAME,
-				       (void *)(&vpif_obj.dev[res_idx]->channel_id));
-		if (err) {
-			vpif_err("VPIF IRQ request failed\n");
-			goto vpif_unregister;
-		}
-	} while (++res_idx);
-
-	vpif_obj.config = pdev->dev.platform_data;
-	subdev_count = vpif_obj.config->subdev_count;
-	subdevdata = vpif_obj.config->subdevinfo;
-	vpif_obj.sd = kcalloc(subdev_count, sizeof(*vpif_obj.sd), GFP_KERNEL);
-	if (!vpif_obj.sd) {
-		err = -ENOMEM;
-		goto vpif_unregister;
-	}
-
-	i2c_adap = i2c_get_adapter(vpif_obj.config->i2c_adapter_id);
-	for (i = 0; i < subdev_count; i++) {
-		vpif_obj.sd[i] =
-			v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
-						  i2c_adap,
-						  &subdevdata[i].board_info,
-						  NULL);
-		if (!vpif_obj.sd[i]) {
-			vpif_err("Error registering v4l2 subdevice\n");
-			err = -ENODEV;
-			goto probe_subdev_out;
-		}
-
-		if (vpif_obj.sd[i])
-			vpif_obj.sd[i]->grp_id = 1 << i;
-	}
-	err = vpif_probe_complete();
-	if (err)
-		goto probe_subdev_out;
-
-	return 0;
-
-probe_subdev_out:
-	kfree(vpif_obj.sd);
-vpif_unregister:
-	v4l2_device_unregister(&vpif_obj.v4l2_dev);
-vpif_free:
-	free_vpif_objs();
-
-	return err;
-}
-
-/*
- * vpif_remove: It un-register channels from V4L2 driver
- */
-static int vpif_remove(struct platform_device *device)
-{
-	struct channel_obj *ch;
-	int i;
-
-	v4l2_device_unregister(&vpif_obj.v4l2_dev);
-
-	kfree(vpif_obj.sd);
-	/* un-register device */
-	for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
-		/* Get the pointer to the channel object */
-		ch = vpif_obj.dev[i];
-		/* Unregister video device */
-		video_unregister_device(&ch->video_dev);
-	}
-	free_vpif_objs();
-
-	return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int vpif_suspend(struct device *dev)
-{
-	struct common_obj *common;
-	struct channel_obj *ch;
-	int i;
-
-	for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
-		/* Get the pointer to the channel object */
-		ch = vpif_obj.dev[i];
-		common = &ch->common[VPIF_VIDEO_INDEX];
-
-		if (!vb2_start_streaming_called(&common->buffer_queue))
-			continue;
-
-		mutex_lock(&common->lock);
-		/* Disable channel */
-		if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
-			enable_channel2(0);
-			channel2_intr_enable(0);
-		}
-		if (ch->channel_id == VPIF_CHANNEL3_VIDEO ||
-			ycmux_mode == 2) {
-			enable_channel3(0);
-			channel3_intr_enable(0);
-		}
-		mutex_unlock(&common->lock);
-	}
-
-	return 0;
-}
-
-static int vpif_resume(struct device *dev)
-{
-
-	struct common_obj *common;
-	struct channel_obj *ch;
-	int i;
-
-	for (i = 0; i < VPIF_DISPLAY_MAX_DEVICES; i++) {
-		/* Get the pointer to the channel object */
-		ch = vpif_obj.dev[i];
-		common = &ch->common[VPIF_VIDEO_INDEX];
-
-		if (!vb2_start_streaming_called(&common->buffer_queue))
-			continue;
-
-		mutex_lock(&common->lock);
-		/* Enable channel */
-		if (ch->channel_id == VPIF_CHANNEL2_VIDEO) {
-			enable_channel2(1);
-			channel2_intr_enable(1);
-		}
-		if (ch->channel_id == VPIF_CHANNEL3_VIDEO ||
-				ycmux_mode == 2) {
-			enable_channel3(1);
-			channel3_intr_enable(1);
-		}
-		mutex_unlock(&common->lock);
-	}
-
-	return 0;
-}
-
-#endif
-
-static SIMPLE_DEV_PM_OPS(vpif_pm_ops, vpif_suspend, vpif_resume);
-
-static __refdata struct platform_driver vpif_driver = {
-	.driver	= {
-			.name	= VPIF_DRIVER_NAME,
-			.pm	= &vpif_pm_ops,
-	},
-	.probe	= vpif_probe,
-	.remove	= vpif_remove,
-};
-
-module_platform_driver(vpif_driver);