1 files changed, 0 insertions, 1230 deletions

diff --git a/drivers/media/video/s5p-mfc/s5p_mfc.c b/drivers/media/video/s5p-mfc/s5p_mfc.c
deleted file mode 100644
index e3e616d..0000000
--- a/drivers/media/video/s5p-mfc/s5p_mfc.c
+++ /dev/null
@@ -1,1230 +0,0 @@
-/*
- * Samsung S5P Multi Format Codec v 5.1
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Kamil Debski, <k.debski@samsung.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; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/videodev2.h>
-#include <linux/workqueue.h>
-#include <media/videobuf2-core.h>
-#include "regs-mfc.h"
-#include "s5p_mfc_ctrl.h"
-#include "s5p_mfc_debug.h"
-#include "s5p_mfc_dec.h"
-#include "s5p_mfc_enc.h"
-#include "s5p_mfc_intr.h"
-#include "s5p_mfc_opr.h"
-#include "s5p_mfc_pm.h"
-#include "s5p_mfc_shm.h"
-
-#define S5P_MFC_NAME		"s5p-mfc"
-#define S5P_MFC_DEC_NAME	"s5p-mfc-dec"
-#define S5P_MFC_ENC_NAME	"s5p-mfc-enc"
-
-int debug;
-module_param(debug, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Debug level - higher value produces more verbose messages");
-
-/* Helper functions for interrupt processing */
-/* Remove from hw execution round robin */
-static void clear_work_bit(struct s5p_mfc_ctx *ctx)
-{
-	struct s5p_mfc_dev *dev = ctx->dev;
-
-	spin_lock(&dev->condlock);
-	clear_bit(ctx->num, &dev->ctx_work_bits);
-	spin_unlock(&dev->condlock);
-}
-
-/* Wake up context wait_queue */
-static void wake_up_ctx(struct s5p_mfc_ctx *ctx, unsigned int reason,
-			unsigned int err)
-{
-	ctx->int_cond = 1;
-	ctx->int_type = reason;
-	ctx->int_err = err;
-	wake_up(&ctx->queue);
-}
-
-/* Wake up device wait_queue */
-static void wake_up_dev(struct s5p_mfc_dev *dev, unsigned int reason,
-			unsigned int err)
-{
-	dev->int_cond = 1;
-	dev->int_type = reason;
-	dev->int_err = err;
-	wake_up(&dev->queue);
-}
-
-static void s5p_mfc_watchdog(unsigned long arg)
-{
-	struct s5p_mfc_dev *dev = (struct s5p_mfc_dev *)arg;
-
-	if (test_bit(0, &dev->hw_lock))
-		atomic_inc(&dev->watchdog_cnt);
-	if (atomic_read(&dev->watchdog_cnt) >= MFC_WATCHDOG_CNT) {
-		/* This means that hw is busy and no interrupts were
-		 * generated by hw for the Nth time of running this
-		 * watchdog timer. This usually means a serious hw
-		 * error. Now it is time to kill all instances and
-		 * reset the MFC. */
-		mfc_err("Time out during waiting for HW\n");
-		queue_work(dev->watchdog_workqueue, &dev->watchdog_work);
-	}
-	dev->watchdog_timer.expires = jiffies +
-					msecs_to_jiffies(MFC_WATCHDOG_INTERVAL);
-	add_timer(&dev->watchdog_timer);
-}
-
-static void s5p_mfc_watchdog_worker(struct work_struct *work)
-{
-	struct s5p_mfc_dev *dev;
-	struct s5p_mfc_ctx *ctx;
-	unsigned long flags;
-	int mutex_locked;
-	int i, ret;
-
-	dev = container_of(work, struct s5p_mfc_dev, watchdog_work);
-
-	mfc_err("Driver timeout error handling\n");
-	/* Lock the mutex that protects open and release.
-	 * This is necessary as they may load and unload firmware. */
-	mutex_locked = mutex_trylock(&dev->mfc_mutex);
-	if (!mutex_locked)
-		mfc_err("Error: some instance may be closing/opening\n");
-	spin_lock_irqsave(&dev->irqlock, flags);
-
-	s5p_mfc_clock_off();
-
-	for (i = 0; i < MFC_NUM_CONTEXTS; i++) {
-		ctx = dev->ctx[i];
-		if (!ctx)
-			continue;
-		ctx->state = MFCINST_ERROR;
-		s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
-		s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
-		clear_work_bit(ctx);
-		wake_up_ctx(ctx, S5P_FIMV_R2H_CMD_ERR_RET, 0);
-	}
-	clear_bit(0, &dev->hw_lock);
-	spin_unlock_irqrestore(&dev->irqlock, flags);
-	/* Double check if there is at least one instance running.
-	 * If no instance is in memory than no firmware should be present */
-	if (dev->num_inst > 0) {
-		ret = s5p_mfc_reload_firmware(dev);
-		if (ret) {
-			mfc_err("Failed to reload FW\n");
-			goto unlock;
-		}
-		s5p_mfc_clock_on();
-		ret = s5p_mfc_init_hw(dev);
-		if (ret)
-			mfc_err("Failed to reinit FW\n");
-	}
-unlock:
-	if (mutex_locked)
-		mutex_unlock(&dev->mfc_mutex);
-}
-
-static enum s5p_mfc_node_type s5p_mfc_get_node_type(struct file *file)
-{
-	struct video_device *vdev = video_devdata(file);
-
-	if (!vdev) {
-		mfc_err("failed to get video_device");
-		return MFCNODE_INVALID;
-	}
-	if (vdev->index == 0)
-		return MFCNODE_DECODER;
-	else if (vdev->index == 1)
-		return MFCNODE_ENCODER;
-	return MFCNODE_INVALID;
-}
-
-static void s5p_mfc_clear_int_flags(struct s5p_mfc_dev *dev)
-{
-	mfc_write(dev, 0, S5P_FIMV_RISC_HOST_INT);
-	mfc_write(dev, 0, S5P_FIMV_RISC2HOST_CMD);
-	mfc_write(dev, 0xffff, S5P_FIMV_SI_RTN_CHID);
-}
-
-static void s5p_mfc_handle_frame_all_extracted(struct s5p_mfc_ctx *ctx)
-{
-	struct s5p_mfc_buf *dst_buf;
-
-	ctx->state = MFCINST_FINISHED;
-	ctx->sequence++;
-	while (!list_empty(&ctx->dst_queue)) {
-		dst_buf = list_entry(ctx->dst_queue.next,
-				     struct s5p_mfc_buf, list);
-		mfc_debug(2, "Cleaning up buffer: %d\n",
-					  dst_buf->b->v4l2_buf.index);
-		vb2_set_plane_payload(dst_buf->b, 0, 0);
-		vb2_set_plane_payload(dst_buf->b, 1, 0);
-		list_del(&dst_buf->list);
-		ctx->dst_queue_cnt--;
-		dst_buf->b->v4l2_buf.sequence = (ctx->sequence++);
-
-		if (s5p_mfc_read_shm(ctx, PIC_TIME_TOP) ==
-			s5p_mfc_read_shm(ctx, PIC_TIME_BOT))
-			dst_buf->b->v4l2_buf.field = V4L2_FIELD_NONE;
-		else
-			dst_buf->b->v4l2_buf.field = V4L2_FIELD_INTERLACED;
-
-		ctx->dec_dst_flag &= ~(1 << dst_buf->b->v4l2_buf.index);
-		vb2_buffer_done(dst_buf->b, VB2_BUF_STATE_DONE);
-	}
-}
-
-static void s5p_mfc_handle_frame_copy_time(struct s5p_mfc_ctx *ctx)
-{
-	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_buf  *dst_buf, *src_buf;
-	size_t dec_y_addr = s5p_mfc_get_dec_y_adr();
-	unsigned int frame_type = s5p_mfc_get_frame_type();
-
-	/* Copy timestamp / timecode from decoded src to dst and set
-	   appropraite flags */
-	src_buf = list_entry(ctx->src_queue.next, struct s5p_mfc_buf, list);
-	list_for_each_entry(dst_buf, &ctx->dst_queue, list) {
-		if (vb2_dma_contig_plane_dma_addr(dst_buf->b, 0) == dec_y_addr) {
-			memcpy(&dst_buf->b->v4l2_buf.timecode,
-				&src_buf->b->v4l2_buf.timecode,
-				sizeof(struct v4l2_timecode));
-			memcpy(&dst_buf->b->v4l2_buf.timestamp,
-				&src_buf->b->v4l2_buf.timestamp,
-				sizeof(struct timeval));
-			switch (frame_type) {
-			case S5P_FIMV_DECODE_FRAME_I_FRAME:
-				dst_buf->b->v4l2_buf.flags |=
-						V4L2_BUF_FLAG_KEYFRAME;
-				break;
-			case S5P_FIMV_DECODE_FRAME_P_FRAME:
-				dst_buf->b->v4l2_buf.flags |=
-						V4L2_BUF_FLAG_PFRAME;
-				break;
-			case S5P_FIMV_DECODE_FRAME_B_FRAME:
-				dst_buf->b->v4l2_buf.flags |=
-						V4L2_BUF_FLAG_BFRAME;
-				break;
-			}
-			break;
-		}
-	}
-}
-
-static void s5p_mfc_handle_frame_new(struct s5p_mfc_ctx *ctx, unsigned int err)
-{
-	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_buf  *dst_buf;
-	size_t dspl_y_addr = s5p_mfc_get_dspl_y_adr();
-	unsigned int frame_type = s5p_mfc_get_frame_type();
-	unsigned int index;
-
-	/* If frame is same as previous then skip and do not dequeue */
-	if (frame_type == S5P_FIMV_DECODE_FRAME_SKIPPED) {
-		if (!ctx->after_packed_pb)
-			ctx->sequence++;
-		ctx->after_packed_pb = 0;
-		return;
-	}
-	ctx->sequence++;
-	/* The MFC returns address of the buffer, now we have to
-	 * check which videobuf does it correspond to */
-	list_for_each_entry(dst_buf, &ctx->dst_queue, list) {
-		/* Check if this is the buffer we're looking for */
-		if (vb2_dma_contig_plane_dma_addr(dst_buf->b, 0) == dspl_y_addr) {
-			list_del(&dst_buf->list);
-			ctx->dst_queue_cnt--;
-			dst_buf->b->v4l2_buf.sequence = ctx->sequence;
-			if (s5p_mfc_read_shm(ctx, PIC_TIME_TOP) ==
-				s5p_mfc_read_shm(ctx, PIC_TIME_BOT))
-				dst_buf->b->v4l2_buf.field = V4L2_FIELD_NONE;
-			else
-				dst_buf->b->v4l2_buf.field =
-							V4L2_FIELD_INTERLACED;
-			vb2_set_plane_payload(dst_buf->b, 0, ctx->luma_size);
-			vb2_set_plane_payload(dst_buf->b, 1, ctx->chroma_size);
-			clear_bit(dst_buf->b->v4l2_buf.index,
-							&ctx->dec_dst_flag);
-
-			vb2_buffer_done(dst_buf->b,
-				err ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
-
-			index = dst_buf->b->v4l2_buf.index;
-			break;
-		}
-	}
-}
-
-/* Handle frame decoding interrupt */
-static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
-					unsigned int reason, unsigned int err)
-{
-	struct s5p_mfc_dev *dev = ctx->dev;
-	unsigned int dst_frame_status;
-	struct s5p_mfc_buf *src_buf;
-	unsigned long flags;
-	unsigned int res_change;
-
-	unsigned int index;
-
-	dst_frame_status = s5p_mfc_get_dspl_status()
-				& S5P_FIMV_DEC_STATUS_DECODING_STATUS_MASK;
-	res_change = s5p_mfc_get_dspl_status()
-				& S5P_FIMV_DEC_STATUS_RESOLUTION_MASK;
-	mfc_debug(2, "Frame Status: %x\n", dst_frame_status);
-	if (ctx->state == MFCINST_RES_CHANGE_INIT)
-		ctx->state = MFCINST_RES_CHANGE_FLUSH;
-	if (res_change) {
-		ctx->state = MFCINST_RES_CHANGE_INIT;
-		s5p_mfc_clear_int_flags(dev);
-		wake_up_ctx(ctx, reason, err);
-		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-			BUG();
-		s5p_mfc_clock_off();
-		s5p_mfc_try_run(dev);
-		return;
-	}
-	if (ctx->dpb_flush_flag)
-		ctx->dpb_flush_flag = 0;
-
-	spin_lock_irqsave(&dev->irqlock, flags);
-	/* All frames remaining in the buffer have been extracted  */
-	if (dst_frame_status == S5P_FIMV_DEC_STATUS_DECODING_EMPTY) {
-		if (ctx->state == MFCINST_RES_CHANGE_FLUSH) {
-			s5p_mfc_handle_frame_all_extracted(ctx);
-			ctx->state = MFCINST_RES_CHANGE_END;
-			goto leave_handle_frame;
-		} else {
-			s5p_mfc_handle_frame_all_extracted(ctx);
-		}
-	}
-
-	if (dst_frame_status == S5P_FIMV_DEC_STATUS_DECODING_DISPLAY ||
-		dst_frame_status == S5P_FIMV_DEC_STATUS_DECODING_ONLY)
-		s5p_mfc_handle_frame_copy_time(ctx);
-
-	/* A frame has been decoded and is in the buffer  */
-	if (dst_frame_status == S5P_FIMV_DEC_STATUS_DISPLAY_ONLY ||
-	    dst_frame_status == S5P_FIMV_DEC_STATUS_DECODING_DISPLAY) {
-		s5p_mfc_handle_frame_new(ctx, err);
-	} else {
-		mfc_debug(2, "No frame decode\n");
-	}
-	/* Mark source buffer as complete */
-	if (dst_frame_status != S5P_FIMV_DEC_STATUS_DISPLAY_ONLY
-		&& !list_empty(&ctx->src_queue)) {
-		src_buf = list_entry(ctx->src_queue.next, struct s5p_mfc_buf,
-								list);
-		ctx->consumed_stream += s5p_mfc_get_consumed_stream();
-		if (ctx->codec_mode != S5P_FIMV_CODEC_H264_DEC &&
-			s5p_mfc_get_frame_type() == S5P_FIMV_DECODE_FRAME_P_FRAME
-					&& ctx->consumed_stream + STUFF_BYTE <
-					src_buf->b->v4l2_planes[0].bytesused) {
-			/* Run MFC again on the same buffer */
-			mfc_debug(2, "Running again the same buffer\n");
-			ctx->after_packed_pb = 1;
-		} else {
-			index = src_buf->b->v4l2_buf.index;
-			mfc_debug(2, "MFC needs next buffer\n");
-			ctx->consumed_stream = 0;
-			list_del(&src_buf->list);
-			ctx->src_queue_cnt--;
-			if (s5p_mfc_err_dec(err) > 0)
-				vb2_buffer_done(src_buf->b, VB2_BUF_STATE_ERROR);
-			else
-				vb2_buffer_done(src_buf->b, VB2_BUF_STATE_DONE);
-		}
-	}
-leave_handle_frame:
-	spin_unlock_irqrestore(&dev->irqlock, flags);
-	if ((ctx->src_queue_cnt == 0 && ctx->state != MFCINST_FINISHING)
-				    || ctx->dst_queue_cnt < ctx->dpb_count)
-		clear_work_bit(ctx);
-	s5p_mfc_clear_int_flags(dev);
-	wake_up_ctx(ctx, reason, err);
-	if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-		BUG();
-	s5p_mfc_clock_off();
-	s5p_mfc_try_run(dev);
-}
-
-/* Error handling for interrupt */
-static void s5p_mfc_handle_error(struct s5p_mfc_ctx *ctx,
-				 unsigned int reason, unsigned int err)
-{
-	struct s5p_mfc_dev *dev;
-	unsigned long flags;
-
-	/* If no context is available then all necessary
-	 * processing has been done. */
-	if (ctx == NULL)
-		return;
-
-	dev = ctx->dev;
-	mfc_err("Interrupt Error: %08x\n", err);
-	s5p_mfc_clear_int_flags(dev);
-	wake_up_dev(dev, reason, err);
-
-	/* Error recovery is dependent on the state of context */
-	switch (ctx->state) {
-	case MFCINST_INIT:
-		/* This error had to happen while acquireing instance */
-	case MFCINST_GOT_INST:
-		/* This error had to happen while parsing the header */
-	case MFCINST_HEAD_PARSED:
-		/* This error had to happen while setting dst buffers */
-	case MFCINST_RETURN_INST:
-		/* This error had to happen while releasing instance */
-		clear_work_bit(ctx);
-		wake_up_ctx(ctx, reason, err);
-		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-			BUG();
-		s5p_mfc_clock_off();
-		ctx->state = MFCINST_ERROR;
-		break;
-	case MFCINST_FINISHING:
-	case MFCINST_FINISHED:
-	case MFCINST_RUNNING:
-		/* It is higly probable that an error occured
-		 * while decoding a frame */
-		clear_work_bit(ctx);
-		ctx->state = MFCINST_ERROR;
-		/* Mark all dst buffers as having an error */
-		spin_lock_irqsave(&dev->irqlock, flags);
-		s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
-		/* Mark all src buffers as having an error */
-		s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
-		spin_unlock_irqrestore(&dev->irqlock, flags);
-		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-			BUG();
-		s5p_mfc_clock_off();
-		break;
-	default:
-		mfc_err("Encountered an error interrupt which had not been handled\n");
-		break;
-	}
-	return;
-}
-
-/* Header parsing interrupt handling */
-static void s5p_mfc_handle_seq_done(struct s5p_mfc_ctx *ctx,
-				 unsigned int reason, unsigned int err)
-{
-	struct s5p_mfc_dev *dev;
-	unsigned int guard_width, guard_height;
-
-	if (ctx == NULL)
-		return;
-	dev = ctx->dev;
-	if (ctx->c_ops->post_seq_start) {
-		if (ctx->c_ops->post_seq_start(ctx))
-			mfc_err("post_seq_start() failed\n");
-	} else {
-		ctx->img_width = s5p_mfc_get_img_width();
-		ctx->img_height = s5p_mfc_get_img_height();
-
-		ctx->buf_width = ALIGN(ctx->img_width,
-						S5P_FIMV_NV12MT_HALIGN);
-		ctx->buf_height = ALIGN(ctx->img_height,
-						S5P_FIMV_NV12MT_VALIGN);
-		mfc_debug(2, "SEQ Done: Movie dimensions %dx%d, "
-			"buffer dimensions: %dx%d\n", ctx->img_width,
-				ctx->img_height, ctx->buf_width,
-						ctx->buf_height);
-		if (ctx->codec_mode == S5P_FIMV_CODEC_H264_DEC) {
-			ctx->luma_size = ALIGN(ctx->buf_width *
-				ctx->buf_height, S5P_FIMV_DEC_BUF_ALIGN);
-			ctx->chroma_size = ALIGN(ctx->buf_width *
-					 ALIGN((ctx->img_height >> 1),
-					       S5P_FIMV_NV12MT_VALIGN),
-					       S5P_FIMV_DEC_BUF_ALIGN);
-			ctx->mv_size = ALIGN(ctx->buf_width *
-					ALIGN((ctx->buf_height >> 2),
-					S5P_FIMV_NV12MT_VALIGN),
-					S5P_FIMV_DEC_BUF_ALIGN);
-		} else {
-			guard_width = ALIGN(ctx->img_width + 24,
-					S5P_FIMV_NV12MT_HALIGN);
-			guard_height = ALIGN(ctx->img_height + 16,
-						S5P_FIMV_NV12MT_VALIGN);
-			ctx->luma_size = ALIGN(guard_width *
-				guard_height, S5P_FIMV_DEC_BUF_ALIGN);
-			guard_width = ALIGN(ctx->img_width + 16,
-						S5P_FIMV_NV12MT_HALIGN);
-			guard_height = ALIGN((ctx->img_height >> 1) + 4,
-						S5P_FIMV_NV12MT_VALIGN);
-			ctx->chroma_size = ALIGN(guard_width *
-				guard_height, S5P_FIMV_DEC_BUF_ALIGN);
-			ctx->mv_size = 0;
-		}
-		ctx->dpb_count = s5p_mfc_get_dpb_count();
-		if (ctx->img_width == 0 || ctx->img_height == 0)
-			ctx->state = MFCINST_ERROR;
-		else
-			ctx->state = MFCINST_HEAD_PARSED;
-	}
-	s5p_mfc_clear_int_flags(dev);
-	clear_work_bit(ctx);
-	if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-		BUG();
-	s5p_mfc_clock_off();
-	s5p_mfc_try_run(dev);
-	wake_up_ctx(ctx, reason, err);
-}
-
-/* Header parsing interrupt handling */
-static void s5p_mfc_handle_init_buffers(struct s5p_mfc_ctx *ctx,
-				 unsigned int reason, unsigned int err)
-{
-	struct s5p_mfc_buf *src_buf;
-	struct s5p_mfc_dev *dev;
-	unsigned long flags;
-
-	if (ctx == NULL)
-		return;
-	dev = ctx->dev;
-	s5p_mfc_clear_int_flags(dev);
-	ctx->int_type = reason;
-	ctx->int_err = err;
-	ctx->int_cond = 1;
-	spin_lock(&dev->condlock);
-	clear_bit(ctx->num, &dev->ctx_work_bits);
-	spin_unlock(&dev->condlock);
-	if (err == 0) {
-		ctx->state = MFCINST_RUNNING;
-		if (!ctx->dpb_flush_flag) {
-			spin_lock_irqsave(&dev->irqlock, flags);
-			if (!list_empty(&ctx->src_queue)) {
-				src_buf = list_entry(ctx->src_queue.next,
-					     struct s5p_mfc_buf, list);
-				list_del(&src_buf->list);
-				ctx->src_queue_cnt--;
-				vb2_buffer_done(src_buf->b,
-						VB2_BUF_STATE_DONE);
-			}
-			spin_unlock_irqrestore(&dev->irqlock, flags);
-		} else {
-			ctx->dpb_flush_flag = 0;
-		}
-		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-			BUG();
-
-		s5p_mfc_clock_off();
-
-		wake_up(&ctx->queue);
-		s5p_mfc_try_run(dev);
-	} else {
-		if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-			BUG();
-
-		s5p_mfc_clock_off();
-
-		wake_up(&ctx->queue);
-	}
-}
-
-/* Interrupt processing */
-static irqreturn_t s5p_mfc_irq(int irq, void *priv)
-{
-	struct s5p_mfc_dev *dev = priv;
-	struct s5p_mfc_ctx *ctx;
-	unsigned int reason;
-	unsigned int err;
-
-	mfc_debug_enter();
-	/* Reset the timeout watchdog */
-	atomic_set(&dev->watchdog_cnt, 0);
-	ctx = dev->ctx[dev->curr_ctx];
-	/* Get the reason of interrupt and the error code */
-	reason = s5p_mfc_get_int_reason();
-	err = s5p_mfc_get_int_err();
-	mfc_debug(1, "Int reason: %d (err: %08x)\n", reason, err);
-	switch (reason) {
-	case S5P_FIMV_R2H_CMD_ERR_RET:
-		/* An error has occured */
-		if (ctx->state == MFCINST_RUNNING &&
-			s5p_mfc_err_dec(err) >= S5P_FIMV_ERR_WARNINGS_START)
-			s5p_mfc_handle_frame(ctx, reason, err);
-		else
-			s5p_mfc_handle_error(ctx, reason, err);
-		clear_bit(0, &dev->enter_suspend);
-		break;
-
-	case S5P_FIMV_R2H_CMD_SLICE_DONE_RET:
-	case S5P_FIMV_R2H_CMD_FRAME_DONE_RET:
-		if (ctx->c_ops->post_frame_start) {
-			if (ctx->c_ops->post_frame_start(ctx))
-				mfc_err("post_frame_start() failed\n");
-			s5p_mfc_clear_int_flags(dev);
-			wake_up_ctx(ctx, reason, err);
-			if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-				BUG();
-			s5p_mfc_clock_off();
-			s5p_mfc_try_run(dev);
-		} else {
-			s5p_mfc_handle_frame(ctx, reason, err);
-		}
-		break;
-
-	case S5P_FIMV_R2H_CMD_SEQ_DONE_RET:
-		s5p_mfc_handle_seq_done(ctx, reason, err);
-		break;
-
-	case S5P_FIMV_R2H_CMD_OPEN_INSTANCE_RET:
-		ctx->inst_no = s5p_mfc_get_inst_no();
-		ctx->state = MFCINST_GOT_INST;
-		clear_work_bit(ctx);
-		wake_up(&ctx->queue);
-		goto irq_cleanup_hw;
-
-	case S5P_FIMV_R2H_CMD_CLOSE_INSTANCE_RET:
-		clear_work_bit(ctx);
-		ctx->state = MFCINST_FREE;
-		wake_up(&ctx->queue);
-		goto irq_cleanup_hw;
-
-	case S5P_FIMV_R2H_CMD_SYS_INIT_RET:
-	case S5P_FIMV_R2H_CMD_FW_STATUS_RET:
-	case S5P_FIMV_R2H_CMD_SLEEP_RET:
-	case S5P_FIMV_R2H_CMD_WAKEUP_RET:
-		if (ctx)
-			clear_work_bit(ctx);
-		s5p_mfc_clear_int_flags(dev);
-		wake_up_dev(dev, reason, err);
-		clear_bit(0, &dev->hw_lock);
-		clear_bit(0, &dev->enter_suspend);
-		break;
-
-	case S5P_FIMV_R2H_CMD_INIT_BUFFERS_RET:
-		s5p_mfc_handle_init_buffers(ctx, reason, err);
-		break;
-	default:
-		mfc_debug(2, "Unknown int reason\n");
-		s5p_mfc_clear_int_flags(dev);
-	}
-	mfc_debug_leave();
-	return IRQ_HANDLED;
-irq_cleanup_hw:
-	s5p_mfc_clear_int_flags(dev);
-	ctx->int_type = reason;
-	ctx->int_err = err;
-	ctx->int_cond = 1;
-	if (test_and_clear_bit(0, &dev->hw_lock) == 0)
-		mfc_err("Failed to unlock hw\n");
-
-	s5p_mfc_clock_off();
-
-	s5p_mfc_try_run(dev);
-	mfc_debug(2, "Exit via irq_cleanup_hw\n");
-	return IRQ_HANDLED;
-}
-
-/* Open an MFC node */
-static int s5p_mfc_open(struct file *file)
-{
-	struct s5p_mfc_dev *dev = video_drvdata(file);
-	struct s5p_mfc_ctx *ctx = NULL;
-	struct vb2_queue *q;
-	unsigned long flags;
-	int ret = 0;
-
-	mfc_debug_enter();
-	if (mutex_lock_interruptible(&dev->mfc_mutex))
-		return -ERESTARTSYS;
-	dev->num_inst++;	/* It is guarded by mfc_mutex in vfd */
-	/* Allocate memory for context */
-	ctx = kzalloc(sizeof *ctx, GFP_KERNEL);
-	if (!ctx) {
-		mfc_err("Not enough memory\n");
-		ret = -ENOMEM;
-		goto err_alloc;
-	}
-	v4l2_fh_init(&ctx->fh, video_devdata(file));
-	file->private_data = &ctx->fh;
-	v4l2_fh_add(&ctx->fh);
-	ctx->dev = dev;
-	INIT_LIST_HEAD(&ctx->src_queue);
-	INIT_LIST_HEAD(&ctx->dst_queue);
-	ctx->src_queue_cnt = 0;
-	ctx->dst_queue_cnt = 0;
-	/* Get context number */
-	ctx->num = 0;
-	while (dev->ctx[ctx->num]) {
-		ctx->num++;
-		if (ctx->num >= MFC_NUM_CONTEXTS) {
-			mfc_err("Too many open contexts\n");
-			ret = -EBUSY;
-			goto err_no_ctx;
-		}
-	}
-	/* Mark context as idle */
-	spin_lock_irqsave(&dev->condlock, flags);
-	clear_bit(ctx->num, &dev->ctx_work_bits);
-	spin_unlock_irqrestore(&dev->condlock, flags);
-	dev->ctx[ctx->num] = ctx;
-	if (s5p_mfc_get_node_type(file) == MFCNODE_DECODER) {
-		ctx->type = MFCINST_DECODER;
-		ctx->c_ops = get_dec_codec_ops();
-		/* Setup ctrl handler */
-		ret = s5p_mfc_dec_ctrls_setup(ctx);
-		if (ret) {
-			mfc_err("Failed to setup mfc controls\n");
-			goto err_ctrls_setup;
-		}
-	} else if (s5p_mfc_get_node_type(file) == MFCNODE_ENCODER) {
-		ctx->type = MFCINST_ENCODER;
-		ctx->c_ops = get_enc_codec_ops();
-		/* only for encoder */
-		INIT_LIST_HEAD(&ctx->ref_queue);
-		ctx->ref_queue_cnt = 0;
-		/* Setup ctrl handler */
-		ret = s5p_mfc_enc_ctrls_setup(ctx);
-		if (ret) {
-			mfc_err("Failed to setup mfc controls\n");
-			goto err_ctrls_setup;
-		}
-	} else {
-		ret = -ENOENT;
-		goto err_bad_node;
-	}
-	ctx->fh.ctrl_handler = &ctx->ctrl_handler;
-	ctx->inst_no = -1;
-	/* Load firmware if this is the first instance */
-	if (dev->num_inst == 1) {
-		dev->watchdog_timer.expires = jiffies +
-					msecs_to_jiffies(MFC_WATCHDOG_INTERVAL);
-		add_timer(&dev->watchdog_timer);
-		ret = s5p_mfc_power_on();
-		if (ret < 0) {
-			mfc_err("power on failed\n");
-			goto err_pwr_enable;
-		}
-		s5p_mfc_clock_on();
-		ret = s5p_mfc_alloc_and_load_firmware(dev);
-		if (ret)
-			goto err_alloc_fw;
-		/* Init the FW */
-		ret = s5p_mfc_init_hw(dev);
-		if (ret)
-			goto err_init_hw;
-		s5p_mfc_clock_off();
-	}
-	/* Init videobuf2 queue for CAPTURE */
-	q = &ctx->vq_dst;
-	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
-	q->drv_priv = &ctx->fh;
-	if (s5p_mfc_get_node_type(file) == MFCNODE_DECODER) {
-		q->io_modes = VB2_MMAP;
-		q->ops = get_dec_queue_ops();
-	} else if (s5p_mfc_get_node_type(file) == MFCNODE_ENCODER) {
-		q->io_modes = VB2_MMAP | VB2_USERPTR;
-		q->ops = get_enc_queue_ops();
-	} else {
-		ret = -ENOENT;
-		goto err_queue_init;
-	}
-	q->mem_ops = (struct vb2_mem_ops *)&vb2_dma_contig_memops;
-	ret = vb2_queue_init(q);
-	if (ret) {
-		mfc_err("Failed to initialize videobuf2 queue(capture)\n");
-		goto err_queue_init;
-	}
-	/* Init videobuf2 queue for OUTPUT */
-	q = &ctx->vq_src;
-	q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
-	q->io_modes = VB2_MMAP;
-	q->drv_priv = &ctx->fh;
-	if (s5p_mfc_get_node_type(file) == MFCNODE_DECODER) {
-		q->io_modes = VB2_MMAP;
-		q->ops = get_dec_queue_ops();
-	} else if (s5p_mfc_get_node_type(file) == MFCNODE_ENCODER) {
-		q->io_modes = VB2_MMAP | VB2_USERPTR;
-		q->ops = get_enc_queue_ops();
-	} else {
-		ret = -ENOENT;
-		goto err_queue_init;
-	}
-	q->mem_ops = (struct vb2_mem_ops *)&vb2_dma_contig_memops;
-	ret = vb2_queue_init(q);
-	if (ret) {
-		mfc_err("Failed to initialize videobuf2 queue(output)\n");
-		goto err_queue_init;
-	}
-	init_waitqueue_head(&ctx->queue);
-	mutex_unlock(&dev->mfc_mutex);
-	mfc_debug_leave();
-	return ret;
-	/* Deinit when failure occured */
-err_queue_init:
-err_init_hw:
-	s5p_mfc_release_firmware(dev);
-err_alloc_fw:
-	dev->ctx[ctx->num] = NULL;
-	del_timer_sync(&dev->watchdog_timer);
-	s5p_mfc_clock_off();
-err_pwr_enable:
-	if (dev->num_inst == 1) {
-		if (s5p_mfc_power_off() < 0)
-			mfc_err("power off failed\n");
-		s5p_mfc_release_firmware(dev);
-	}
-err_ctrls_setup:
-	s5p_mfc_dec_ctrls_delete(ctx);
-err_bad_node:
-err_no_ctx:
-	v4l2_fh_del(&ctx->fh);
-	v4l2_fh_exit(&ctx->fh);
-	kfree(ctx);
-err_alloc:
-	dev->num_inst--;
-	mutex_unlock(&dev->mfc_mutex);
-	mfc_debug_leave();
-	return ret;
-}
-
-/* Release MFC context */
-static int s5p_mfc_release(struct file *file)
-{
-	struct s5p_mfc_ctx *ctx = fh_to_ctx(file->private_data);
-	struct s5p_mfc_dev *dev = ctx->dev;
-	unsigned long flags;
-
-	mfc_debug_enter();
-	mutex_lock(&dev->mfc_mutex);
-	s5p_mfc_clock_on();
-	vb2_queue_release(&ctx->vq_src);
-	vb2_queue_release(&ctx->vq_dst);
-	/* Mark context as idle */
-	spin_lock_irqsave(&dev->condlock, flags);
-	clear_bit(ctx->num, &dev->ctx_work_bits);
-	spin_unlock_irqrestore(&dev->condlock, flags);
-	/* If instance was initialised then
-	 * return instance and free reosurces */
-	if (ctx->inst_no != MFC_NO_INSTANCE_SET) {
-		mfc_debug(2, "Has to free instance\n");
-		ctx->state = MFCINST_RETURN_INST;
-		spin_lock_irqsave(&dev->condlock, flags);
-		set_bit(ctx->num, &dev->ctx_work_bits);
-		spin_unlock_irqrestore(&dev->condlock, flags);
-		s5p_mfc_clean_ctx_int_flags(ctx);
-		s5p_mfc_try_run(dev);
-		/* Wait until instance is returned or timeout occured */
-		if (s5p_mfc_wait_for_done_ctx
-		    (ctx, S5P_FIMV_R2H_CMD_CLOSE_INSTANCE_RET, 0)) {
-			s5p_mfc_clock_off();
-			mfc_err("Err returning instance\n");
-		}
-		mfc_debug(2, "After free instance\n");
-		/* Free resources */
-		s5p_mfc_release_codec_buffers(ctx);
-		s5p_mfc_release_instance_buffer(ctx);
-		if (ctx->type == MFCINST_DECODER)
-			s5p_mfc_release_dec_desc_buffer(ctx);
-
-		ctx->inst_no = MFC_NO_INSTANCE_SET;
-	}
-	/* hardware locking scheme */
-	if (dev->curr_ctx == ctx->num)
-		clear_bit(0, &dev->hw_lock);
-	dev->num_inst--;
-	if (dev->num_inst == 0) {
-		mfc_debug(2, "Last instance - release firmware\n");
-		/* reset <-> F/W release */
-		s5p_mfc_reset(dev);
-		s5p_mfc_release_firmware(dev);
-		del_timer_sync(&dev->watchdog_timer);
-		if (s5p_mfc_power_off() < 0)
-			mfc_err("Power off failed\n");
-	}
-	mfc_debug(2, "Shutting down clock\n");
-	s5p_mfc_clock_off();
-	dev->ctx[ctx->num] = NULL;
-	s5p_mfc_dec_ctrls_delete(ctx);
-	v4l2_fh_del(&ctx->fh);
-	v4l2_fh_exit(&ctx->fh);
-	kfree(ctx);
-	mfc_debug_leave();
-	mutex_unlock(&dev->mfc_mutex);
-	return 0;
-}
-
-/* Poll */
-static unsigned int s5p_mfc_poll(struct file *file,
-				 struct poll_table_struct *wait)
-{
-	struct s5p_mfc_ctx *ctx = fh_to_ctx(file->private_data);
-	struct s5p_mfc_dev *dev = ctx->dev;
-	struct vb2_queue *src_q, *dst_q;
-	struct vb2_buffer *src_vb = NULL, *dst_vb = NULL;
-	unsigned int rc = 0;
-	unsigned long flags;
-
-	mutex_lock(&dev->mfc_mutex);
-	src_q = &ctx->vq_src;
-	dst_q = &ctx->vq_dst;
-	/*
-	 * There has to be at least one buffer queued on each queued_list, which
-	 * means either in driver already or waiting for driver to claim it
-	 * and start processing.
-	 */
-	if ((!src_q->streaming || list_empty(&src_q->queued_list))
-		&& (!dst_q->streaming || list_empty(&dst_q->queued_list))) {
-		rc = POLLERR;
-		goto end;
-	}
-	mutex_unlock(&dev->mfc_mutex);
-	poll_wait(file, &src_q->done_wq, wait);
-	poll_wait(file, &dst_q->done_wq, wait);
-	mutex_lock(&dev->mfc_mutex);
-	spin_lock_irqsave(&src_q->done_lock, flags);
-	if (!list_empty(&src_q->done_list))
-		src_vb = list_first_entry(&src_q->done_list, struct vb2_buffer,
-								done_entry);
-	if (src_vb && (src_vb->state == VB2_BUF_STATE_DONE
-				|| src_vb->state == VB2_BUF_STATE_ERROR))
-		rc |= POLLOUT | POLLWRNORM;
-	spin_unlock_irqrestore(&src_q->done_lock, flags);
-	spin_lock_irqsave(&dst_q->done_lock, flags);
-	if (!list_empty(&dst_q->done_list))
-		dst_vb = list_first_entry(&dst_q->done_list, struct vb2_buffer,
-								done_entry);
-	if (dst_vb && (dst_vb->state == VB2_BUF_STATE_DONE
-				|| dst_vb->state == VB2_BUF_STATE_ERROR))
-		rc |= POLLIN | POLLRDNORM;
-	spin_unlock_irqrestore(&dst_q->done_lock, flags);
-end:
-	mutex_unlock(&dev->mfc_mutex);
-	return rc;
-}
-
-/* Mmap */
-static int s5p_mfc_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct s5p_mfc_ctx *ctx = fh_to_ctx(file->private_data);
-	struct s5p_mfc_dev *dev = ctx->dev;
-	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-	int ret;
-
-	if (mutex_lock_interruptible(&dev->mfc_mutex))
-		return -ERESTARTSYS;
-	if (offset < DST_QUEUE_OFF_BASE) {
-		mfc_debug(2, "mmaping source\n");
-		ret = vb2_mmap(&ctx->vq_src, vma);
-	} else {		/* capture */
-		mfc_debug(2, "mmaping destination\n");
-		vma->vm_pgoff -= (DST_QUEUE_OFF_BASE >> PAGE_SHIFT);
-		ret = vb2_mmap(&ctx->vq_dst, vma);
-	}
-	mutex_unlock(&dev->mfc_mutex);
-	return ret;
-}
-
-/* v4l2 ops */
-static const struct v4l2_file_operations s5p_mfc_fops = {
-	.owner = THIS_MODULE,
-	.open = s5p_mfc_open,
-	.release = s5p_mfc_release,
-	.poll = s5p_mfc_poll,
-	.unlocked_ioctl = video_ioctl2,
-	.mmap = s5p_mfc_mmap,
-};
-
-static int match_child(struct device *dev, void *data)
-{
-	if (!dev_name(dev))
-		return 0;
-	return !strcmp(dev_name(dev), (char *)data);
-}
-
-/* MFC probe function */
-static int s5p_mfc_probe(struct platform_device *pdev)
-{
-	struct s5p_mfc_dev *dev;
-	struct video_device *vfd;
-	struct resource *res;
-	int ret;
-
-	pr_debug("%s++\n", __func__);
-	dev = devm_kzalloc(&pdev->dev, sizeof *dev, GFP_KERNEL);
-	if (!dev) {
-		dev_err(&pdev->dev, "Not enough memory for MFC device\n");
-		return -ENOMEM;
-	}
-
-	spin_lock_init(&dev->irqlock);
-	spin_lock_init(&dev->condlock);
-	dev->plat_dev = pdev;
-	if (!dev->plat_dev) {
-		dev_err(&pdev->dev, "No platform data specified\n");
-		return -ENODEV;
-	}
-
-	ret = s5p_mfc_init_pm(dev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to get mfc clock source\n");
-		return ret;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
-	dev->regs_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (dev->regs_base == NULL) {
-		dev_err(&pdev->dev, "Failed to obtain io memory\n");
-		return -ENOENT;
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "failed to get irq resource\n");
-		ret = -ENOENT;
-		goto err_res;
-	}
-	dev->irq = res->start;
-	ret = devm_request_irq(&pdev->dev, dev->irq, s5p_mfc_irq,
-					IRQF_DISABLED, pdev->name, dev);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to install irq (%d)\n", ret);
-		goto err_res;
-	}
-
-	dev->mem_dev_l = device_find_child(&dev->plat_dev->dev, "s5p-mfc-l",
-					   match_child);
-	if (!dev->mem_dev_l) {
-		mfc_err("Mem child (L) device get failed\n");
-		ret = -ENODEV;
-		goto err_res;
-	}
-	dev->mem_dev_r = device_find_child(&dev->plat_dev->dev, "s5p-mfc-r",
-					   match_child);
-	if (!dev->mem_dev_r) {
-		mfc_err("Mem child (R) device get failed\n");
-		ret = -ENODEV;
-		goto err_res;
-	}
-
-	dev->alloc_ctx[0] = vb2_dma_contig_init_ctx(dev->mem_dev_l);
-	if (IS_ERR_OR_NULL(dev->alloc_ctx[0])) {
-		ret = PTR_ERR(dev->alloc_ctx[0]);
-		goto err_res;
-	}
-	dev->alloc_ctx[1] = vb2_dma_contig_init_ctx(dev->mem_dev_r);
-	if (IS_ERR_OR_NULL(dev->alloc_ctx[1])) {
-		ret = PTR_ERR(dev->alloc_ctx[1]);
-		goto err_mem_init_ctx_1;
-	}
-
-	mutex_init(&dev->mfc_mutex);
-
-	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
-	if (ret)
-		goto err_v4l2_dev_reg;
-	init_waitqueue_head(&dev->queue);
-
-	/* decoder */
-	vfd = video_device_alloc();
-	if (!vfd) {
-		v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n");
-		ret = -ENOMEM;
-		goto err_dec_alloc;
-	}
-	vfd->fops	= &s5p_mfc_fops,
-	vfd->ioctl_ops	= get_dec_v4l2_ioctl_ops();
-	vfd->release	= video_device_release,
-	vfd->lock	= &dev->mfc_mutex;
-	vfd->v4l2_dev	= &dev->v4l2_dev;
-	snprintf(vfd->name, sizeof(vfd->name), "%s", S5P_MFC_DEC_NAME);
-	dev->vfd_dec	= vfd;
-	ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
-	if (ret) {
-		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
-		video_device_release(vfd);
-		goto err_dec_reg;
-	}
-	v4l2_info(&dev->v4l2_dev,
-		  "decoder registered as /dev/video%d\n", vfd->num);
-	video_set_drvdata(vfd, dev);
-
-	/* encoder */
-	vfd = video_device_alloc();
-	if (!vfd) {
-		v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n");
-		ret = -ENOMEM;
-		goto err_enc_alloc;
-	}
-	vfd->fops	= &s5p_mfc_fops,
-	vfd->ioctl_ops	= get_enc_v4l2_ioctl_ops();
-	vfd->release	= video_device_release,
-	vfd->lock	= &dev->mfc_mutex;
-	vfd->v4l2_dev	= &dev->v4l2_dev;
-	snprintf(vfd->name, sizeof(vfd->name), "%s", S5P_MFC_ENC_NAME);
-	dev->vfd_enc	= vfd;
-	ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
-	if (ret) {
-		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
-		video_device_release(vfd);
-		goto err_enc_reg;
-	}
-	v4l2_info(&dev->v4l2_dev,
-		  "encoder registered as /dev/video%d\n", vfd->num);
-	video_set_drvdata(vfd, dev);
-	platform_set_drvdata(pdev, dev);
-
-	dev->hw_lock = 0;
-	dev->watchdog_workqueue = create_singlethread_workqueue(S5P_MFC_NAME);
-	INIT_WORK(&dev->watchdog_work, s5p_mfc_watchdog_worker);
-	atomic_set(&dev->watchdog_cnt, 0);
-	init_timer(&dev->watchdog_timer);
-	dev->watchdog_timer.data = (unsigned long)dev;
-	dev->watchdog_timer.function = s5p_mfc_watchdog;
-
-	pr_debug("%s--\n", __func__);
-	return 0;
-
-/* Deinit MFC if probe had failed */
-err_enc_reg:
-	video_device_release(dev->vfd_enc);
-err_enc_alloc:
-	video_unregister_device(dev->vfd_dec);
-err_dec_reg:
-	video_device_release(dev->vfd_dec);
-err_dec_alloc:
-	v4l2_device_unregister(&dev->v4l2_dev);
-err_v4l2_dev_reg:
-	vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[1]);
-err_mem_init_ctx_1:
-	vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[0]);
-err_res:
-	s5p_mfc_final_pm(dev);
-
-	pr_debug("%s-- with error\n", __func__);
-	return ret;
-
-}
-
-/* Remove the driver */
-static int __devexit s5p_mfc_remove(struct platform_device *pdev)
-{
-	struct s5p_mfc_dev *dev = platform_get_drvdata(pdev);
-
-	v4l2_info(&dev->v4l2_dev, "Removing %s\n", pdev->name);
-
-	del_timer_sync(&dev->watchdog_timer);
-	flush_workqueue(dev->watchdog_workqueue);
-	destroy_workqueue(dev->watchdog_workqueue);
-
-	video_unregister_device(dev->vfd_enc);
-	video_unregister_device(dev->vfd_dec);
-	v4l2_device_unregister(&dev->v4l2_dev);
-	vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[0]);
-	vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[1]);
-
-	s5p_mfc_final_pm(dev);
-	return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-
-static int s5p_mfc_suspend(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_mfc_dev *m_dev = platform_get_drvdata(pdev);
-	int ret;
-
-	if (m_dev->num_inst == 0)
-		return 0;
-	return s5p_mfc_sleep(m_dev);
-	if (test_and_set_bit(0, &m_dev->enter_suspend) != 0) {
-		mfc_err("Error: going to suspend for a second time\n");
-		return -EIO;
-	}
-
-	/* Check if we're processing then wait if it necessary. */
-	while (test_and_set_bit(0, &m_dev->hw_lock) != 0) {
-		/* Try and lock the HW */
-		/* Wait on the interrupt waitqueue */
-		ret = wait_event_interruptible_timeout(m_dev->queue,
-			m_dev->int_cond || m_dev->ctx[m_dev->curr_ctx]->int_cond,
-			msecs_to_jiffies(MFC_INT_TIMEOUT));
-
-		if (ret == 0) {
-			mfc_err("Waiting for hardware to finish timed out\n");
-			return -EIO;
-		}
-	}
-	return 0;
-}
-
-static int s5p_mfc_resume(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_mfc_dev *m_dev = platform_get_drvdata(pdev);
-
-	if (m_dev->num_inst == 0)
-		return 0;
-	return s5p_mfc_wakeup(m_dev);
-}
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-static int s5p_mfc_runtime_suspend(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_mfc_dev *m_dev = platform_get_drvdata(pdev);
-
-	atomic_set(&m_dev->pm.power, 0);
-	return 0;
-}
-
-static int s5p_mfc_runtime_resume(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_mfc_dev *m_dev = platform_get_drvdata(pdev);
-	int pre_power;
-
-	if (!m_dev->alloc_ctx)
-		return 0;
-	pre_power = atomic_read(&m_dev->pm.power);
-	atomic_set(&m_dev->pm.power, 1);
-	return 0;
-}
-#endif
-
-/* Power management */
-static const struct dev_pm_ops s5p_mfc_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(s5p_mfc_suspend, s5p_mfc_resume)
-	SET_RUNTIME_PM_OPS(s5p_mfc_runtime_suspend, s5p_mfc_runtime_resume,
-			   NULL)
-};
-
-static struct platform_driver s5p_mfc_driver = {
-	.probe	= s5p_mfc_probe,
-	.remove	= __devexit_p(s5p_mfc_remove),
-	.driver	= {
-		.name	= S5P_MFC_NAME,
-		.owner	= THIS_MODULE,
-		.pm	= &s5p_mfc_pm_ops
-	},
-};
-
-module_platform_driver(s5p_mfc_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Kamil Debski <k.debski@samsung.com>");
-MODULE_DESCRIPTION("Samsung S5P Multi Format Codec V4L2 driver");
-