Merging upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

33 files changed, 249 insertions, 274 deletions

diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-capture.c b/drivers/media/platform/samsung/exynos4-is/fimc-capture.c
index 05cafba1c7..ffa4ea2138 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-capture.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-capture.c
@@ -180,7 +180,7 @@ void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf)
 	struct fimc_vid_cap *cap = &fimc->vid_cap;
 	struct fimc_pipeline *p = to_fimc_pipeline(cap->ve.pipe);
 	struct v4l2_subdev *csis = p->subdevs[IDX_CSIS];
-	struct fimc_frame *f = &cap->ctx->d_frame;
+	const struct fimc_frame *f = &cap->ctx->d_frame;
 	struct fimc_vid_buffer *v_buf;
 
 	if (test_and_clear_bit(ST_CAPT_SHUT, &fimc->state)) {
@@ -342,8 +342,8 @@ static int queue_setup(struct vb2_queue *vq,
 		       unsigned int sizes[], struct device *alloc_devs[])
 {
 	struct fimc_ctx *ctx = vq->drv_priv;
-	struct fimc_frame *frame = &ctx->d_frame;
-	struct fimc_fmt *fmt = frame->fmt;
+	const struct fimc_frame *frame = &ctx->d_frame;
+	const struct fimc_fmt *fmt = frame->fmt;
 	unsigned long wh = frame->f_width * frame->f_height;
 	int i;
 
@@ -559,18 +559,18 @@ static const struct v4l2_file_operations fimc_capture_fops = {
  * Format and crop negotiation helpers
  */
 
-static struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
-						u32 *width, u32 *height,
-						u32 *code, u32 *fourcc, int pad)
+static const struct fimc_fmt *fimc_capture_try_format(struct fimc_ctx *ctx,
+						      u32 *width, u32 *height,
+						      u32 *code, u32 *fourcc, int pad)
 {
 	bool rotation = ctx->rotation == 90 || ctx->rotation == 270;
 	struct fimc_dev *fimc = ctx->fimc_dev;
 	const struct fimc_variant *var = fimc->variant;
 	const struct fimc_pix_limit *pl = var->pix_limit;
-	struct fimc_frame *dst = &ctx->d_frame;
+	const struct fimc_frame *dst = &ctx->d_frame;
 	u32 depth, min_w, max_w, min_h, align_h = 3;
+	const struct fimc_fmt *ffmt;
 	u32 mask = FMT_FLAGS_CAM;
-	struct fimc_fmt *ffmt;
 
 	/* Conversion from/to JPEG or User Defined format is not supported */
 	if (code && ctx->s_frame.fmt && pad == FIMC_SD_PAD_SOURCE &&
@@ -644,7 +644,7 @@ static void fimc_capture_try_selection(struct fimc_ctx *ctx,
 	struct fimc_dev *fimc = ctx->fimc_dev;
 	const struct fimc_variant *var = fimc->variant;
 	const struct fimc_pix_limit *pl = var->pix_limit;
-	struct fimc_frame *sink = &ctx->s_frame;
+	const struct fimc_frame *sink = &ctx->s_frame;
 	u32 max_w, max_h, min_w = 0, min_h = 0, min_sz;
 	u32 align_sz = 0, align_h = 4;
 	u32 max_sc_h, max_sc_v;
@@ -722,7 +722,7 @@ static int fimc_cap_querycap(struct file *file, void *priv,
 static int fimc_cap_enum_fmt(struct file *file, void *priv,
 			     struct v4l2_fmtdesc *f)
 {
-	struct fimc_fmt *fmt;
+	const struct fimc_fmt *fmt;
 
 	fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM | FMT_FLAGS_M2M,
 			       f->index);
@@ -757,7 +757,7 @@ static struct media_entity *fimc_pipeline_get_head(struct media_entity *me)
  */
 static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
 				    struct v4l2_mbus_framefmt *tfmt,
-				    struct fimc_fmt **fmt_id,
+				    const struct fimc_fmt **fmt_id,
 				    bool set)
 {
 	struct fimc_dev *fimc = ctx->fimc_dev;
@@ -768,8 +768,8 @@ static int fimc_pipeline_try_format(struct fimc_ctx *ctx,
 		       : V4L2_SUBDEV_FORMAT_TRY,
 	};
 	struct v4l2_mbus_framefmt *mf = &sfmt.format;
+	const struct fimc_fmt *ffmt;
 	struct media_entity *me;
-	struct fimc_fmt *ffmt;
 	struct media_pad *pad;
 	int ret, i = 1;
 	u32 fcc;
@@ -903,8 +903,8 @@ static int fimc_cap_g_fmt_mplane(struct file *file, void *fh,
  */
 static int __video_try_or_set_format(struct fimc_dev *fimc,
 				     struct v4l2_format *f, bool try,
-				     struct fimc_fmt **inp_fmt,
-				     struct fimc_fmt **out_fmt)
+				     const struct fimc_fmt **inp_fmt,
+				     const struct fimc_fmt **out_fmt)
 {
 	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
 	struct fimc_vid_cap *vc = &fimc->vid_cap;
@@ -986,7 +986,7 @@ static int fimc_cap_try_fmt_mplane(struct file *file, void *fh,
 				   struct v4l2_format *f)
 {
 	struct fimc_dev *fimc = video_drvdata(file);
-	struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL;
+	const struct fimc_fmt *out_fmt = NULL, *inp_fmt = NULL;
 
 	return __video_try_or_set_format(fimc, f, true, &inp_fmt, &out_fmt);
 }
@@ -1010,9 +1010,9 @@ static int __fimc_capture_set_format(struct fimc_dev *fimc,
 {
 	struct fimc_vid_cap *vc = &fimc->vid_cap;
 	struct fimc_ctx *ctx = vc->ctx;
-	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+	const struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
 	struct fimc_frame *ff = &ctx->d_frame;
-	struct fimc_fmt *inp_fmt = NULL;
+	const struct fimc_fmt *inp_fmt = NULL;
 	int ret, i;
 
 	if (vb2_is_busy(&fimc->vid_cap.vbq))
@@ -1132,7 +1132,7 @@ static int fimc_pipeline_validate(struct fimc_dev *fimc)
 
 		/* Don't call FIMC subdev operation to avoid nested locking */
 		if (sd == &vc->subdev) {
-			struct fimc_frame *ff = &vc->ctx->s_frame;
+			const struct fimc_frame *ff = &vc->ctx->s_frame;
 			sink_fmt.format.width = ff->f_width;
 			sink_fmt.format.height = ff->f_height;
 			sink_fmt.format.code = ff->fmt ? ff->fmt->mbus_code : 0;
@@ -1158,7 +1158,7 @@ static int fimc_pipeline_validate(struct fimc_dev *fimc)
 		if (sd == p->subdevs[IDX_SENSOR] &&
 		    fimc_user_defined_mbus_fmt(src_fmt.format.code)) {
 			struct v4l2_plane_pix_format plane_fmt[FIMC_MAX_PLANES];
-			struct fimc_frame *frame = &vc->ctx->d_frame;
+			const struct fimc_frame *frame = &vc->ctx->d_frame;
 			unsigned int i;
 
 			ret = fimc_get_sensor_frame_desc(sd, plane_fmt,
@@ -1263,7 +1263,7 @@ static int fimc_cap_g_selection(struct file *file, void *fh,
 {
 	struct fimc_dev *fimc = video_drvdata(file);
 	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
-	struct fimc_frame *f = &ctx->s_frame;
+	const struct fimc_frame *f = &ctx->s_frame;
 
 	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		return -EINVAL;
@@ -1460,7 +1460,7 @@ static int fimc_subdev_enum_mbus_code(struct v4l2_subdev *sd,
 				      struct v4l2_subdev_state *sd_state,
 				      struct v4l2_subdev_mbus_code_enum *code)
 {
-	struct fimc_fmt *fmt;
+	const struct fimc_fmt *fmt;
 
 	fmt = fimc_find_format(NULL, NULL, FMT_FLAGS_CAM, code->index);
 	if (!fmt)
@@ -1475,7 +1475,7 @@ static int fimc_subdev_get_fmt(struct v4l2_subdev *sd,
 {
 	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
 	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
-	struct fimc_frame *ff = &ctx->s_frame;
+	const struct fimc_frame *ff = &ctx->s_frame;
 	struct v4l2_mbus_framefmt *mf;
 
 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
@@ -1519,7 +1519,7 @@ static int fimc_subdev_set_fmt(struct v4l2_subdev *sd,
 	struct fimc_vid_cap *vc = &fimc->vid_cap;
 	struct fimc_ctx *ctx = vc->ctx;
 	struct fimc_frame *ff;
-	struct fimc_fmt *ffmt;
+	const struct fimc_fmt *ffmt;
 
 	dbg("pad%d: code: 0x%x, %dx%d",
 	    fmt->pad, mf->code, mf->width, mf->height);
@@ -1582,7 +1582,7 @@ static int fimc_subdev_get_selection(struct v4l2_subdev *sd,
 {
 	struct fimc_dev *fimc = v4l2_get_subdevdata(sd);
 	struct fimc_ctx *ctx = fimc->vid_cap.ctx;
-	struct fimc_frame *f = &ctx->s_frame;
+	const struct fimc_frame *f = &ctx->s_frame;
 	struct v4l2_rect *r = &sel->r;
 	struct v4l2_rect *try_sel;
 
@@ -1715,9 +1715,9 @@ static int fimc_register_capture_device(struct fimc_dev *fimc,
 {
 	struct video_device *vfd = &fimc->vid_cap.ve.vdev;
 	struct vb2_queue *q = &fimc->vid_cap.vbq;
-	struct fimc_ctx *ctx;
 	struct fimc_vid_cap *vid_cap;
-	struct fimc_fmt *fmt;
+	const struct fimc_fmt *fmt;
+	struct fimc_ctx *ctx;
 	int ret = -ENOMEM;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-core.c b/drivers/media/platform/samsung/exynos4-is/fimc-core.c
index 0be687b01c..aae74b501a 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-core.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-core.c
@@ -29,11 +29,11 @@
 #include "fimc-reg.h"
 #include "media-dev.h"
 
-static char *fimc_clocks[MAX_FIMC_CLOCKS] = {
+static const char *fimc_clocks[MAX_FIMC_CLOCKS] = {
 	"sclk_fimc", "fimc"
 };
 
-static struct fimc_fmt fimc_formats[] = {
+static const struct fimc_fmt fimc_formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_RGB565,
 		.depth		= { 16 },
@@ -180,7 +180,7 @@ static struct fimc_fmt fimc_formats[] = {
 	},
 };
 
-struct fimc_fmt *fimc_get_format(unsigned int index)
+const struct fimc_fmt *fimc_get_format(unsigned int index)
 {
 	if (index >= ARRAY_SIZE(fimc_formats))
 		return NULL;
@@ -228,8 +228,8 @@ int fimc_set_scaler_info(struct fimc_ctx *ctx)
 	const struct fimc_variant *variant = ctx->fimc_dev->variant;
 	struct device *dev = &ctx->fimc_dev->pdev->dev;
 	struct fimc_scaler *sc = &ctx->scaler;
-	struct fimc_frame *s_frame = &ctx->s_frame;
-	struct fimc_frame *d_frame = &ctx->d_frame;
+	const struct fimc_frame *s_frame = &ctx->s_frame;
+	const struct fimc_frame *d_frame = &ctx->d_frame;
 	int tx, ty, sx, sy;
 	int ret;
 
@@ -326,7 +326,7 @@ out:
 
 /* The color format (colplanes, memplanes) must be already configured. */
 int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
-		      struct fimc_frame *frame, struct fimc_addr *addr)
+		      const struct fimc_frame *frame, struct fimc_addr *addr)
 {
 	int ret = 0;
 	u32 pix_size;
@@ -670,7 +670,7 @@ void fimc_alpha_ctrl_update(struct fimc_ctx *ctx)
 	v4l2_ctrl_unlock(ctrl);
 }
 
-void __fimc_get_format(struct fimc_frame *frame, struct v4l2_format *f)
+void __fimc_get_format(const struct fimc_frame *frame, struct v4l2_format *f)
 {
 	struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
 	int i;
@@ -695,7 +695,7 @@ void __fimc_get_format(struct fimc_frame *frame, struct v4l2_format *f)
  * @height: requested pixel height
  * @pix: multi-plane format to adjust
  */
-void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
+void fimc_adjust_mplane_format(const struct fimc_fmt *fmt, u32 width, u32 height,
 			       struct v4l2_pix_format_mplane *pix)
 {
 	u32 bytesperline = 0;
@@ -752,10 +752,11 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
  * @mask: the color flags to match
  * @index: offset in the fimc_formats array, ignored if negative
  */
-struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
-				  unsigned int mask, int index)
+const struct fimc_fmt *fimc_find_format(const u32 *pixelformat,
+					const u32 *mbus_code,
+					unsigned int mask, int index)
 {
-	struct fimc_fmt *fmt, *def_fmt = NULL;
+	const struct fimc_fmt *fmt, *def_fmt = NULL;
 	unsigned int i;
 	int id = 0;
 
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-core.h b/drivers/media/platform/samsung/exynos4-is/fimc-core.h
index 2b0760add0..63385152a2 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-core.h
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-core.h
@@ -257,7 +257,7 @@ struct fimc_frame {
 	unsigned int		bytesperline[VIDEO_MAX_PLANES];
 	struct fimc_addr	addr;
 	struct fimc_dma_offset	dma_offset;
-	struct fimc_fmt		*fmt;
+	const struct fimc_fmt	*fmt;
 	u8			alpha;
 };
 
@@ -515,7 +515,7 @@ static inline void set_frame_crop(struct fimc_frame *f,
 	f->height = height;
 }
 
-static inline u32 fimc_get_format_depth(struct fimc_fmt *ff)
+static inline u32 fimc_get_format_depth(const struct fimc_fmt *ff)
 {
 	u32 i, depth = 0;
 
@@ -557,7 +557,7 @@ static inline bool fimc_ctx_state_is_set(u32 mask, struct fimc_ctx *ctx)
 	return ret;
 }
 
-static inline int tiled_fmt(struct fimc_fmt *fmt)
+static inline int tiled_fmt(const struct fimc_fmt *fmt)
 {
 	return fmt->fourcc == V4L2_PIX_FMT_NV12MT;
 }
@@ -575,7 +575,7 @@ static inline bool fimc_user_defined_mbus_fmt(u32 code)
 }
 
 /* Return the alpha component bit mask */
-static inline int fimc_get_alpha_mask(struct fimc_fmt *fmt)
+static inline int fimc_get_alpha_mask(const struct fimc_fmt *fmt)
 {
 	switch (fmt->color) {
 	case FIMC_FMT_RGB444:	return 0x0f;
@@ -610,25 +610,24 @@ static inline struct fimc_frame *ctx_get_frame(struct fimc_ctx *ctx,
 
 /* -----------------------------------------------------*/
 /* fimc-core.c */
-int fimc_vidioc_enum_fmt_mplane(struct file *file, void *priv,
-				struct v4l2_fmtdesc *f);
 int fimc_ctrls_create(struct fimc_ctx *ctx);
 void fimc_ctrls_delete(struct fimc_ctx *ctx);
 void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active);
 void fimc_alpha_ctrl_update(struct fimc_ctx *ctx);
-void __fimc_get_format(struct fimc_frame *frame, struct v4l2_format *f);
-void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height,
+void __fimc_get_format(const struct fimc_frame *frame, struct v4l2_format *f);
+void fimc_adjust_mplane_format(const struct fimc_fmt *fmt, u32 width, u32 height,
 			       struct v4l2_pix_format_mplane *pix);
-struct fimc_fmt *fimc_find_format(const u32 *pixelformat, const u32 *mbus_code,
-				  unsigned int mask, int index);
-struct fimc_fmt *fimc_get_format(unsigned int index);
+const struct fimc_fmt *fimc_find_format(const u32 *pixelformat,
+					const u32 *mbus_code,
+					unsigned int mask, int index);
+const struct fimc_fmt *fimc_get_format(unsigned int index);
 
 int fimc_check_scaler_ratio(struct fimc_ctx *ctx, int sw, int sh,
 			    int dw, int dh, int rotation);
 int fimc_set_scaler_info(struct fimc_ctx *ctx);
 int fimc_prepare_config(struct fimc_ctx *ctx, u32 flags);
 int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
-		      struct fimc_frame *frame, struct fimc_addr *addr);
+		      const struct fimc_frame *frame, struct fimc_addr *addr);
 void fimc_prepare_dma_offset(struct fimc_ctx *ctx, struct fimc_frame *f);
 void fimc_set_yuv_order(struct fimc_ctx *ctx);
 void fimc_capture_irq_handler(struct fimc_dev *fimc, int deq_buf);
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-is.c b/drivers/media/platform/samsung/exynos4-is/fimc-is.c
index a08c87ef6e..39aab66791 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-is.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-is.c
@@ -175,7 +175,7 @@ static int fimc_is_parse_sensor_config(struct fimc_is *is, unsigned int index,
 		return -EINVAL;
 	}
 
-	ep = of_graph_get_next_endpoint(node, NULL);
+	ep = of_graph_get_endpoint_by_regs(node, 0, -1);
 	if (!ep)
 		return -ENXIO;
 
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-isp-video.c b/drivers/media/platform/samsung/exynos4-is/fimc-isp-video.c
index 8fa26969c4..06c4352562 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-isp-video.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-isp-video.c
@@ -40,7 +40,7 @@ static int isp_video_capture_queue_setup(struct vb2_queue *vq,
 			unsigned int sizes[], struct device *alloc_devs[])
 {
 	struct fimc_isp *isp = vb2_get_drv_priv(vq);
-	struct v4l2_pix_format_mplane *vid_fmt = &isp->video_capture.pixfmt;
+	const struct v4l2_pix_format_mplane *vid_fmt = &isp->video_capture.pixfmt;
 	const struct fimc_fmt *fmt = isp->video_capture.format;
 	unsigned int wh, i;
 
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c
index 57996b4104..2483277a6c 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c
@@ -124,7 +124,7 @@ static const u32 src_pixfmt_map[8][3] = {
 };
 
 /* Set camera input pixel format and resolution */
-void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
+void flite_hw_set_source_format(struct fimc_lite *dev, const struct flite_frame *f)
 {
 	u32 pixelcode = f->fmt->mbus_code;
 	int i = ARRAY_SIZE(src_pixfmt_map);
@@ -155,7 +155,7 @@ void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f)
 }
 
 /* Set the camera host input window offsets (cropping) */
-void flite_hw_set_window_offset(struct fimc_lite *dev, struct flite_frame *f)
+void flite_hw_set_window_offset(struct fimc_lite *dev, const struct flite_frame *f)
 {
 	u32 hoff2, voff2;
 	u32 cfg;
@@ -186,7 +186,7 @@ static void flite_hw_set_camera_port(struct fimc_lite *dev, int id)
 
 /* Select serial or parallel bus, camera port (A,B) and set signals polarity */
 void flite_hw_set_camera_bus(struct fimc_lite *dev,
-			     struct fimc_source_info *si)
+			     const struct fimc_source_info *si)
 {
 	u32 cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
 	unsigned int flags = si->flags;
@@ -226,7 +226,8 @@ static void flite_hw_set_pack12(struct fimc_lite *dev, int on)
 	writel(cfg, dev->regs + FLITE_REG_CIODMAFMT);
 }
 
-static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
+static void flite_hw_set_out_order(struct fimc_lite *dev,
+				   const struct flite_frame *f)
 {
 	static const u32 pixcode[4][2] = {
 		{ MEDIA_BUS_FMT_YUYV8_2X8, FLITE_REG_CIODMAFMT_YCBYCR },
@@ -244,7 +245,7 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f)
 	writel(cfg | pixcode[i][1], dev->regs + FLITE_REG_CIODMAFMT);
 }
 
-void flite_hw_set_dma_window(struct fimc_lite *dev, struct flite_frame *f)
+void flite_hw_set_dma_window(struct fimc_lite *dev, const struct flite_frame *f)
 {
 	u32 cfg;
 
@@ -294,7 +295,7 @@ void flite_hw_mask_dma_buffer(struct fimc_lite *dev, u32 index)
 }
 
 /* Enable/disable output DMA, set output pixel size and offsets (composition) */
-void flite_hw_set_output_dma(struct fimc_lite *dev, struct flite_frame *f,
+void flite_hw_set_output_dma(struct fimc_lite *dev, const struct flite_frame *f,
 			     bool enable)
 {
 	u32 cfg = readl(dev->regs + FLITE_REG_CIGCTRL);
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h
index c5656e9027..c5ec36dfb2 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h
@@ -133,15 +133,13 @@ void flite_hw_set_interrupt_mask(struct fimc_lite *dev);
 void flite_hw_capture_start(struct fimc_lite *dev);
 void flite_hw_capture_stop(struct fimc_lite *dev);
 void flite_hw_set_camera_bus(struct fimc_lite *dev,
-			     struct fimc_source_info *s_info);
-void flite_hw_set_camera_polarity(struct fimc_lite *dev,
-				  struct fimc_source_info *cam);
-void flite_hw_set_window_offset(struct fimc_lite *dev, struct flite_frame *f);
-void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f);
+			     const struct fimc_source_info *s_info);
+void flite_hw_set_window_offset(struct fimc_lite *dev, const struct flite_frame *f);
+void flite_hw_set_source_format(struct fimc_lite *dev, const struct flite_frame *f);
 
-void flite_hw_set_output_dma(struct fimc_lite *dev, struct flite_frame *f,
+void flite_hw_set_output_dma(struct fimc_lite *dev, const struct flite_frame *f,
 			     bool enable);
-void flite_hw_set_dma_window(struct fimc_lite *dev, struct flite_frame *f);
+void flite_hw_set_dma_window(struct fimc_lite *dev, const struct flite_frame *f);
 void flite_hw_set_test_pattern(struct fimc_lite *dev, bool on);
 void flite_hw_dump_regs(struct fimc_lite *dev, const char *label);
 void flite_hw_set_dma_buffer(struct fimc_lite *dev, struct flite_buffer *buf);
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-lite.c b/drivers/media/platform/samsung/exynos4-is/fimc-lite.c
index 7898c9bebb..d1d860fa34 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-lite.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-lite.c
@@ -738,7 +738,7 @@ static int fimc_lite_try_fmt_mplane(struct file *file, void *fh,
 static int fimc_lite_s_fmt_mplane(struct file *file, void *priv,
 				  struct v4l2_format *f)
 {
-	struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
+	const struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
 	struct fimc_lite *fimc = video_drvdata(file);
 	struct flite_frame *frame = &fimc->out_frame;
 	const struct fimc_fmt *fmt = NULL;
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-lite.h b/drivers/media/platform/samsung/exynos4-is/fimc-lite.h
index ddf29e0b5b..2d96fb00a5 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-lite.h
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-lite.h
@@ -117,8 +117,6 @@ struct flite_buffer {
  * @ctrl_handler: v4l2 control handler
  * @test_pattern: test pattern controls
  * @index: FIMC-LITE platform device index
- * @pipeline: video capture pipeline data structure
- * @pipeline_ops: media pipeline ops for the video node driver
  * @slock: spinlock protecting this data structure and the hw registers
  * @lock: mutex serializing video device and the subdev operations
  * @clock: FIMC-LITE gate clock
@@ -134,7 +132,6 @@ struct flite_buffer {
  * @active_buf_q: the queue head of buffers scheduled in hardware
  * @vb_queue: vb2 buffers queue
  * @buf_index: helps to keep track of the DMA start address register index
- * @active_buf_count: number of video buffers scheduled in hardware
  * @frame_count: the captured frames counter
  * @reqbufs_count: the number of buffers requested with REQBUFS ioctl
  * @events: event info
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-m2m.c b/drivers/media/platform/samsung/exynos4-is/fimc-m2m.c
index df8e2aa454..199997eec1 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-m2m.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-m2m.c
@@ -170,7 +170,7 @@ static int fimc_queue_setup(struct vb2_queue *vq,
 			    unsigned int sizes[], struct device *alloc_devs[])
 {
 	struct fimc_ctx *ctx = vb2_get_drv_priv(vq);
-	struct fimc_frame *f;
+	const struct fimc_frame *f;
 	int i;
 
 	f = ctx_get_frame(ctx, vq->type);
@@ -192,7 +192,7 @@ static int fimc_queue_setup(struct vb2_queue *vq,
 static int fimc_buf_prepare(struct vb2_buffer *vb)
 {
 	struct fimc_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
-	struct fimc_frame *frame;
+	const struct fimc_frame *frame;
 	int i;
 
 	frame = ctx_get_frame(ctx, vb->vb2_queue->type);
@@ -237,7 +237,7 @@ static int fimc_m2m_querycap(struct file *file, void *fh,
 static int fimc_m2m_enum_fmt(struct file *file, void *priv,
 			     struct v4l2_fmtdesc *f)
 {
-	struct fimc_fmt *fmt;
+	const struct fimc_fmt *fmt;
 
 	fmt = fimc_find_format(NULL, NULL, get_m2m_fmt_flags(f->type),
 			       f->index);
@@ -252,7 +252,7 @@ static int fimc_m2m_g_fmt_mplane(struct file *file, void *fh,
 				 struct v4l2_format *f)
 {
 	struct fimc_ctx *ctx = fh_to_ctx(fh);
-	struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
+	const struct fimc_frame *frame = ctx_get_frame(ctx, f->type);
 
 	if (IS_ERR(frame))
 		return PTR_ERR(frame);
@@ -266,7 +266,7 @@ static int fimc_try_fmt_mplane(struct fimc_ctx *ctx, struct v4l2_format *f)
 	struct fimc_dev *fimc = ctx->fimc_dev;
 	const struct fimc_variant *variant = fimc->variant;
 	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
-	struct fimc_fmt *fmt;
+	const struct fimc_fmt *fmt;
 	u32 max_w, mod_x, mod_y;
 
 	if (!IS_M2M(f->type))
@@ -314,8 +314,9 @@ static int fimc_m2m_try_fmt_mplane(struct file *file, void *fh,
 	return fimc_try_fmt_mplane(ctx, f);
 }
 
-static void __set_frame_format(struct fimc_frame *frame, struct fimc_fmt *fmt,
-			       struct v4l2_pix_format_mplane *pixm)
+static void __set_frame_format(struct fimc_frame *frame,
+			       const struct fimc_fmt *fmt,
+			       const struct v4l2_pix_format_mplane *pixm)
 {
 	int i;
 
@@ -340,7 +341,7 @@ static int fimc_m2m_s_fmt_mplane(struct file *file, void *fh,
 {
 	struct fimc_ctx *ctx = fh_to_ctx(fh);
 	struct fimc_dev *fimc = ctx->fimc_dev;
-	struct fimc_fmt *fmt;
+	const struct fimc_fmt *fmt;
 	struct vb2_queue *vq;
 	struct fimc_frame *frame;
 	int ret;
@@ -378,7 +379,7 @@ static int fimc_m2m_g_selection(struct file *file, void *fh,
 				struct v4l2_selection *s)
 {
 	struct fimc_ctx *ctx = fh_to_ctx(fh);
-	struct fimc_frame *frame;
+	const struct fimc_frame *frame;
 
 	frame = ctx_get_frame(ctx, s->type);
 	if (IS_ERR(frame))
@@ -428,7 +429,7 @@ static int fimc_m2m_try_selection(struct fimc_ctx *ctx,
 				  struct v4l2_selection *s)
 {
 	struct fimc_dev *fimc = ctx->fimc_dev;
-	struct fimc_frame *f;
+	const struct fimc_frame *f;
 	u32 min_size, halign, depth = 0;
 	int i;
 
@@ -588,7 +589,7 @@ static int fimc_m2m_set_default_format(struct fimc_ctx *ctx)
 			.sizeimage = 800 * 4 * 600,
 		},
 	};
-	struct fimc_fmt *fmt;
+	const struct fimc_fmt *fmt;
 
 	fmt = fimc_find_format(&pixm.pixelformat, NULL, FMT_FLAGS_M2M, 0);
 	if (!fmt)
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-reg.c b/drivers/media/platform/samsung/exynos4-is/fimc-reg.c
index 95165a2cc7..b4ee39e471 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-reg.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-reg.c
@@ -105,7 +105,7 @@ void fimc_hw_set_target_format(struct fimc_ctx *ctx)
 {
 	u32 cfg;
 	struct fimc_dev *dev = ctx->fimc_dev;
-	struct fimc_frame *frame = &ctx->d_frame;
+	const struct fimc_frame *frame = &ctx->d_frame;
 
 	dbg("w= %d, h= %d color: %d", frame->width,
 	    frame->height, frame->fmt->color);
@@ -147,7 +147,7 @@ void fimc_hw_set_target_format(struct fimc_ctx *ctx)
 static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
 {
 	struct fimc_dev *dev = ctx->fimc_dev;
-	struct fimc_frame *frame = &ctx->d_frame;
+	const struct fimc_frame *frame = &ctx->d_frame;
 	u32 cfg;
 
 	cfg = (frame->f_height << 16) | frame->f_width;
@@ -166,9 +166,9 @@ static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
 void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
 {
 	struct fimc_dev *dev = ctx->fimc_dev;
-	struct fimc_frame *frame = &ctx->d_frame;
-	struct fimc_dma_offset *offset = &frame->dma_offset;
-	struct fimc_fmt *fmt = frame->fmt;
+	const struct fimc_frame *frame = &ctx->d_frame;
+	const struct fimc_dma_offset *offset = &frame->dma_offset;
+	const struct fimc_fmt *fmt = frame->fmt;
 	u32 cfg;
 
 	/* Set the input dma offsets. */
@@ -248,8 +248,8 @@ static void fimc_hw_set_scaler(struct fimc_ctx *ctx)
 {
 	struct fimc_dev *dev = ctx->fimc_dev;
 	struct fimc_scaler *sc = &ctx->scaler;
-	struct fimc_frame *src_frame = &ctx->s_frame;
-	struct fimc_frame *dst_frame = &ctx->d_frame;
+	const struct fimc_frame *src_frame = &ctx->s_frame;
+	const struct fimc_frame *dst_frame = &ctx->d_frame;
 
 	u32 cfg = readl(dev->regs + FIMC_REG_CISCCTRL);
 
@@ -388,7 +388,7 @@ void fimc_hw_set_effect(struct fimc_ctx *ctx)
 void fimc_hw_set_rgb_alpha(struct fimc_ctx *ctx)
 {
 	struct fimc_dev *dev = ctx->fimc_dev;
-	struct fimc_frame *frame = &ctx->d_frame;
+	const struct fimc_frame *frame = &ctx->d_frame;
 	u32 cfg;
 
 	if (!(frame->fmt->flags & FMT_HAS_ALPHA))
@@ -403,7 +403,7 @@ void fimc_hw_set_rgb_alpha(struct fimc_ctx *ctx)
 static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx)
 {
 	struct fimc_dev *dev = ctx->fimc_dev;
-	struct fimc_frame *frame = &ctx->s_frame;
+	const struct fimc_frame *frame = &ctx->s_frame;
 	u32 cfg_o = 0;
 	u32 cfg_r = 0;
 
@@ -420,8 +420,8 @@ static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx)
 void fimc_hw_set_in_dma(struct fimc_ctx *ctx)
 {
 	struct fimc_dev *dev = ctx->fimc_dev;
-	struct fimc_frame *frame = &ctx->s_frame;
-	struct fimc_dma_offset *offset = &frame->dma_offset;
+	const struct fimc_frame *frame = &ctx->s_frame;
+	const struct fimc_dma_offset *offset = &frame->dma_offset;
 	u32 cfg;
 
 	/* Set the pixel offsets. */
@@ -526,7 +526,7 @@ void fimc_hw_set_output_path(struct fimc_ctx *ctx)
 	writel(cfg, dev->regs + FIMC_REG_CISCCTRL);
 }
 
-void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *addr)
+void fimc_hw_set_input_addr(struct fimc_dev *dev, const struct fimc_addr *addr)
 {
 	u32 cfg = readl(dev->regs + FIMC_REG_CIREAL_ISIZE);
 	cfg |= FIMC_REG_CIREAL_ISIZE_ADDR_CH_DIS;
@@ -541,7 +541,7 @@ void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *addr)
 }
 
 void fimc_hw_set_output_addr(struct fimc_dev *dev,
-			     struct fimc_addr *addr, int index)
+			     const struct fimc_addr *addr, int index)
 {
 	int i = (index == -1) ? 0 : index;
 	do {
@@ -554,7 +554,7 @@ void fimc_hw_set_output_addr(struct fimc_dev *dev,
 }
 
 int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
-				struct fimc_source_info *cam)
+				const struct fimc_source_info *cam)
 {
 	u32 cfg = readl(fimc->regs + FIMC_REG_CIGCTRL);
 
@@ -598,8 +598,8 @@ static const struct mbus_pixfmt_desc pix_desc[] = {
 int fimc_hw_set_camera_source(struct fimc_dev *fimc,
 			      struct fimc_source_info *source)
 {
-	struct fimc_vid_cap *vc = &fimc->vid_cap;
-	struct fimc_frame *f = &vc->ctx->s_frame;
+	const struct fimc_vid_cap *vc = &fimc->vid_cap;
+	const struct fimc_frame *f = &vc->ctx->s_frame;
 	u32 bus_width, cfg = 0;
 	int i;
 
@@ -648,7 +648,7 @@ int fimc_hw_set_camera_source(struct fimc_dev *fimc,
 	return 0;
 }
 
-void fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f)
+void fimc_hw_set_camera_offset(struct fimc_dev *fimc, const struct fimc_frame *f)
 {
 	u32 hoff2, voff2;
 
@@ -668,9 +668,9 @@ void fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f)
 }
 
 int fimc_hw_set_camera_type(struct fimc_dev *fimc,
-			    struct fimc_source_info *source)
+			    const struct fimc_source_info *source)
 {
-	struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
+	const struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
 	u32 csis_data_alignment = 32;
 	u32 cfg, tmp;
 
diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-reg.h b/drivers/media/platform/samsung/exynos4-is/fimc-reg.h
index b9b33aa1f1..9714f43096 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-reg.h
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-reg.h
@@ -302,16 +302,16 @@ void fimc_hw_set_rgb_alpha(struct fimc_ctx *ctx);
 void fimc_hw_set_in_dma(struct fimc_ctx *ctx);
 void fimc_hw_set_input_path(struct fimc_ctx *ctx);
 void fimc_hw_set_output_path(struct fimc_ctx *ctx);
-void fimc_hw_set_input_addr(struct fimc_dev *fimc, struct fimc_addr *addr);
-void fimc_hw_set_output_addr(struct fimc_dev *fimc, struct fimc_addr *addr,
+void fimc_hw_set_input_addr(struct fimc_dev *fimc, const struct fimc_addr *addr);
+void fimc_hw_set_output_addr(struct fimc_dev *fimc, const struct fimc_addr *addr,
 			     int index);
 int fimc_hw_set_camera_source(struct fimc_dev *fimc,
 			      struct fimc_source_info *cam);
-void fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f);
+void fimc_hw_set_camera_offset(struct fimc_dev *fimc, const struct fimc_frame *f);
 int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
-				struct fimc_source_info *cam);
+				const struct fimc_source_info *cam);
 int fimc_hw_set_camera_type(struct fimc_dev *fimc,
-			    struct fimc_source_info *cam);
+			    const struct fimc_source_info *cam);
 void fimc_hw_clear_irq(struct fimc_dev *dev);
 void fimc_hw_enable_scaler(struct fimc_dev *dev, bool on);
 void fimc_hw_activate_input_dma(struct fimc_dev *dev, bool on);
diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c
index aae8a8b2c0..4b9b20ba35 100644
--- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c
@@ -727,7 +727,8 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 				 &state->max_num_lanes))
 		return -EINVAL;
 
-	node = of_graph_get_next_endpoint(node, NULL);
+	/* from port@3 or port@4 */
+	node = of_graph_get_endpoint_by_regs(node, -1, -1);
 	if (!node) {
 		dev_err(&pdev->dev, "No port node at %pOF\n",
 				pdev->dev.of_node);
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c
index fbb047eadf..50451984d5 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc.c
@@ -183,7 +183,7 @@ static void s5p_mfc_watchdog_worker(struct work_struct *work)
 		mfc_err("Error: some instance may be closing/opening\n");
 	spin_lock_irqsave(&dev->irqlock, flags);
 
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 
 	for (i = 0; i < MFC_NUM_CONTEXTS; i++) {
 		ctx = dev->ctx[i];
@@ -211,9 +211,9 @@ static void s5p_mfc_watchdog_worker(struct work_struct *work)
 			mfc_err("Failed to reload FW\n");
 			goto unlock;
 		}
-		s5p_mfc_clock_on();
+		s5p_mfc_clock_on(dev);
 		ret = s5p_mfc_init_hw(dev);
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		if (ret)
 			mfc_err("Failed to reinit FW\n");
 	}
@@ -393,7 +393,7 @@ static void s5p_mfc_handle_frame(struct s5p_mfc_ctx *ctx,
 		s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 		wake_up_ctx(ctx, reason, err);
 		WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 		return;
 	}
@@ -465,7 +465,7 @@ leave_handle_frame:
 	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	wake_up_ctx(ctx, reason, err);
 	WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	/* if suspending, wake up device and do not try_run again*/
 	if (test_bit(0, &dev->enter_suspend))
 		wake_up_dev(dev, reason, err);
@@ -509,7 +509,7 @@ static void s5p_mfc_handle_error(struct s5p_mfc_dev *dev,
 	}
 	WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
 	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	wake_up_dev(dev, reason, err);
 }
 
@@ -565,7 +565,7 @@ static void s5p_mfc_handle_seq_done(struct s5p_mfc_ctx *ctx,
 	s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 	clear_work_bit(ctx);
 	WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 	wake_up_ctx(ctx, reason, err);
 }
@@ -601,7 +601,7 @@ static void s5p_mfc_handle_init_buffers(struct s5p_mfc_ctx *ctx,
 		}
 		WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
 
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 
 		wake_up(&ctx->queue);
 		if (ctx->src_queue_cnt >= 1 && ctx->dst_queue_cnt >= 1)
@@ -610,7 +610,7 @@ static void s5p_mfc_handle_init_buffers(struct s5p_mfc_ctx *ctx,
 	} else {
 		WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
 
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 
 		wake_up(&ctx->queue);
 	}
@@ -638,7 +638,7 @@ static void s5p_mfc_handle_stream_complete(struct s5p_mfc_ctx *ctx)
 
 	WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
 
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	wake_up(&ctx->queue);
 	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 }
@@ -690,7 +690,7 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv)
 			}
 			s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);
 			WARN_ON(test_and_clear_bit(0, &dev->hw_lock) == 0);
-			s5p_mfc_clock_off();
+			s5p_mfc_clock_off(dev);
 			wake_up_ctx(ctx, reason, err);
 			s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 		} else {
@@ -754,7 +754,7 @@ irq_cleanup_hw:
 	if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 		mfc_err("Failed to unlock hw\n");
 
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	clear_work_bit(ctx);
 	wake_up(&ctx->queue);
 
@@ -841,20 +841,20 @@ static int s5p_mfc_open(struct file *file)
 		dev->watchdog_timer.expires = jiffies +
 					msecs_to_jiffies(MFC_WATCHDOG_INTERVAL);
 		add_timer(&dev->watchdog_timer);
-		ret = s5p_mfc_power_on();
+		ret = s5p_mfc_power_on(dev);
 		if (ret < 0) {
 			mfc_err("power on failed\n");
 			goto err_pwr_enable;
 		}
-		s5p_mfc_clock_on();
+		s5p_mfc_clock_on(dev);
 		ret = s5p_mfc_load_firmware(dev);
 		if (ret) {
-			s5p_mfc_clock_off();
+			s5p_mfc_clock_off(dev);
 			goto err_load_fw;
 		}
 		/* Init the FW */
 		ret = s5p_mfc_init_hw(dev);
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		if (ret)
 			goto err_init_hw;
 	}
@@ -931,7 +931,7 @@ err_init_hw:
 err_load_fw:
 err_pwr_enable:
 	if (dev->num_inst == 1) {
-		if (s5p_mfc_power_off() < 0)
+		if (s5p_mfc_power_off(dev) < 0)
 			mfc_err("power off failed\n");
 		del_timer_sync(&dev->watchdog_timer);
 	}
@@ -963,7 +963,7 @@ static int s5p_mfc_release(struct file *file)
 	vb2_queue_release(&ctx->vq_src);
 	vb2_queue_release(&ctx->vq_dst);
 	if (dev) {
-		s5p_mfc_clock_on();
+		s5p_mfc_clock_on(dev);
 
 		/* Mark context as idle */
 		clear_work_bit_irqsave(ctx);
@@ -983,12 +983,12 @@ static int s5p_mfc_release(struct file *file)
 			mfc_debug(2, "Last instance\n");
 			s5p_mfc_deinit_hw(dev);
 			del_timer_sync(&dev->watchdog_timer);
-			s5p_mfc_clock_off();
-			if (s5p_mfc_power_off() < 0)
+			s5p_mfc_clock_off(dev);
+			if (s5p_mfc_power_off(dev) < 0)
 				mfc_err("Power off failed\n");
 		} else {
 			mfc_debug(2, "Shutting down clock\n");
-			s5p_mfc_clock_off();
+			s5p_mfc_clock_off(dev);
 		}
 	}
 	if (dev)
@@ -1520,20 +1520,20 @@ static const struct dev_pm_ops s5p_mfc_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(s5p_mfc_suspend, s5p_mfc_resume)
 };
 
-static struct s5p_mfc_buf_size_v5 mfc_buf_size_v5 = {
+static const struct s5p_mfc_buf_size_v5 mfc_buf_size_v5 = {
 	.h264_ctx	= MFC_H264_CTX_BUF_SIZE,
 	.non_h264_ctx	= MFC_CTX_BUF_SIZE,
 	.dsc		= DESC_BUF_SIZE,
 	.shm		= SHARED_BUF_SIZE,
 };
 
-static struct s5p_mfc_buf_size buf_size_v5 = {
+static const struct s5p_mfc_buf_size buf_size_v5 = {
 	.fw	= MAX_FW_SIZE,
 	.cpb	= MAX_CPB_SIZE,
 	.priv	= &mfc_buf_size_v5,
 };
 
-static struct s5p_mfc_variant mfc_drvdata_v5 = {
+static const struct s5p_mfc_variant mfc_drvdata_v5 = {
 	.version	= MFC_VERSION,
 	.version_bit	= MFC_V5_BIT,
 	.port_num	= MFC_NUM_PORTS,
@@ -1544,7 +1544,7 @@ static struct s5p_mfc_variant mfc_drvdata_v5 = {
 	.use_clock_gating = true,
 };
 
-static struct s5p_mfc_buf_size_v6 mfc_buf_size_v6 = {
+static const struct s5p_mfc_buf_size_v6 mfc_buf_size_v6 = {
 	.dev_ctx	= MFC_CTX_BUF_SIZE_V6,
 	.h264_dec_ctx	= MFC_H264_DEC_CTX_BUF_SIZE_V6,
 	.other_dec_ctx	= MFC_OTHER_DEC_CTX_BUF_SIZE_V6,
@@ -1552,13 +1552,13 @@ static struct s5p_mfc_buf_size_v6 mfc_buf_size_v6 = {
 	.other_enc_ctx	= MFC_OTHER_ENC_CTX_BUF_SIZE_V6,
 };
 
-static struct s5p_mfc_buf_size buf_size_v6 = {
+static const struct s5p_mfc_buf_size buf_size_v6 = {
 	.fw	= MAX_FW_SIZE_V6,
 	.cpb	= MAX_CPB_SIZE_V6,
 	.priv	= &mfc_buf_size_v6,
 };
 
-static struct s5p_mfc_variant mfc_drvdata_v6 = {
+static const struct s5p_mfc_variant mfc_drvdata_v6 = {
 	.version	= MFC_VERSION_V6,
 	.version_bit	= MFC_V6_BIT,
 	.port_num	= MFC_NUM_PORTS_V6,
@@ -1573,7 +1573,7 @@ static struct s5p_mfc_variant mfc_drvdata_v6 = {
 	.num_clocks	= 1,
 };
 
-static struct s5p_mfc_buf_size_v6 mfc_buf_size_v7 = {
+static const struct s5p_mfc_buf_size_v6 mfc_buf_size_v7 = {
 	.dev_ctx	= MFC_CTX_BUF_SIZE_V7,
 	.h264_dec_ctx	= MFC_H264_DEC_CTX_BUF_SIZE_V7,
 	.other_dec_ctx	= MFC_OTHER_DEC_CTX_BUF_SIZE_V7,
@@ -1581,13 +1581,13 @@ static struct s5p_mfc_buf_size_v6 mfc_buf_size_v7 = {
 	.other_enc_ctx	= MFC_OTHER_ENC_CTX_BUF_SIZE_V7,
 };
 
-static struct s5p_mfc_buf_size buf_size_v7 = {
+static const struct s5p_mfc_buf_size buf_size_v7 = {
 	.fw	= MAX_FW_SIZE_V7,
 	.cpb	= MAX_CPB_SIZE_V7,
 	.priv	= &mfc_buf_size_v7,
 };
 
-static struct s5p_mfc_variant mfc_drvdata_v7 = {
+static const struct s5p_mfc_variant mfc_drvdata_v7 = {
 	.version	= MFC_VERSION_V7,
 	.version_bit	= MFC_V7_BIT,
 	.port_num	= MFC_NUM_PORTS_V7,
@@ -1597,7 +1597,7 @@ static struct s5p_mfc_variant mfc_drvdata_v7 = {
 	.num_clocks	= 1,
 };
 
-static struct s5p_mfc_variant mfc_drvdata_v7_3250 = {
+static const struct s5p_mfc_variant mfc_drvdata_v7_3250 = {
 	.version        = MFC_VERSION_V7,
 	.version_bit    = MFC_V7_BIT,
 	.port_num       = MFC_NUM_PORTS_V7,
@@ -1607,7 +1607,7 @@ static struct s5p_mfc_variant mfc_drvdata_v7_3250 = {
 	.num_clocks     = 2,
 };
 
-static struct s5p_mfc_buf_size_v6 mfc_buf_size_v8 = {
+static const struct s5p_mfc_buf_size_v6 mfc_buf_size_v8 = {
 	.dev_ctx	= MFC_CTX_BUF_SIZE_V8,
 	.h264_dec_ctx	= MFC_H264_DEC_CTX_BUF_SIZE_V8,
 	.other_dec_ctx	= MFC_OTHER_DEC_CTX_BUF_SIZE_V8,
@@ -1615,13 +1615,13 @@ static struct s5p_mfc_buf_size_v6 mfc_buf_size_v8 = {
 	.other_enc_ctx	= MFC_OTHER_ENC_CTX_BUF_SIZE_V8,
 };
 
-static struct s5p_mfc_buf_size buf_size_v8 = {
+static const struct s5p_mfc_buf_size buf_size_v8 = {
 	.fw	= MAX_FW_SIZE_V8,
 	.cpb	= MAX_CPB_SIZE_V8,
 	.priv	= &mfc_buf_size_v8,
 };
 
-static struct s5p_mfc_variant mfc_drvdata_v8 = {
+static const struct s5p_mfc_variant mfc_drvdata_v8 = {
 	.version	= MFC_VERSION_V8,
 	.version_bit	= MFC_V8_BIT,
 	.port_num	= MFC_NUM_PORTS_V8,
@@ -1631,7 +1631,7 @@ static struct s5p_mfc_variant mfc_drvdata_v8 = {
 	.num_clocks	= 1,
 };
 
-static struct s5p_mfc_variant mfc_drvdata_v8_5433 = {
+static const struct s5p_mfc_variant mfc_drvdata_v8_5433 = {
 	.version	= MFC_VERSION_V8,
 	.version_bit	= MFC_V8_BIT,
 	.port_num	= MFC_NUM_PORTS_V8,
@@ -1641,7 +1641,7 @@ static struct s5p_mfc_variant mfc_drvdata_v8_5433 = {
 	.num_clocks	= 3,
 };
 
-static struct s5p_mfc_buf_size_v6 mfc_buf_size_v10 = {
+static const struct s5p_mfc_buf_size_v6 mfc_buf_size_v10 = {
 	.dev_ctx        = MFC_CTX_BUF_SIZE_V10,
 	.h264_dec_ctx   = MFC_H264_DEC_CTX_BUF_SIZE_V10,
 	.other_dec_ctx  = MFC_OTHER_DEC_CTX_BUF_SIZE_V10,
@@ -1650,13 +1650,13 @@ static struct s5p_mfc_buf_size_v6 mfc_buf_size_v10 = {
 	.other_enc_ctx  = MFC_OTHER_ENC_CTX_BUF_SIZE_V10,
 };
 
-static struct s5p_mfc_buf_size buf_size_v10 = {
+static const struct s5p_mfc_buf_size buf_size_v10 = {
 	.fw     = MAX_FW_SIZE_V10,
 	.cpb    = MAX_CPB_SIZE_V10,
 	.priv   = &mfc_buf_size_v10,
 };
 
-static struct s5p_mfc_variant mfc_drvdata_v10 = {
+static const struct s5p_mfc_variant mfc_drvdata_v10 = {
 	.version        = MFC_VERSION_V10,
 	.version_bit    = MFC_V10_BIT,
 	.port_num       = MFC_NUM_PORTS_V10,
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.c
index 774c573dc0..196d8c9964 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.c
@@ -12,14 +12,10 @@
 #include "s5p_mfc_cmd_v5.h"
 #include "s5p_mfc_cmd_v6.h"
 
-static struct s5p_mfc_hw_cmds *s5p_mfc_cmds;
-
 void s5p_mfc_init_hw_cmds(struct s5p_mfc_dev *dev)
 {
 	if (IS_MFCV6_PLUS(dev))
-		s5p_mfc_cmds = s5p_mfc_init_hw_cmds_v6();
+		dev->mfc_cmds = s5p_mfc_init_hw_cmds_v6();
 	else
-		s5p_mfc_cmds = s5p_mfc_init_hw_cmds_v5();
-
-	dev->mfc_cmds = s5p_mfc_cmds;
+		dev->mfc_cmds = s5p_mfc_init_hw_cmds_v5();
 }
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.h
index 945d12fdce..172c5a63b5 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd.h
@@ -19,7 +19,7 @@ struct s5p_mfc_cmd_args {
 
 struct s5p_mfc_hw_cmds {
 	int (*cmd_host2risc)(struct s5p_mfc_dev *dev, int cmd,
-				struct s5p_mfc_cmd_args *args);
+			     const struct s5p_mfc_cmd_args *args);
 	int (*sys_init_cmd)(struct s5p_mfc_dev *dev);
 	int (*sleep_cmd)(struct s5p_mfc_dev *dev);
 	int (*wakeup_cmd)(struct s5p_mfc_dev *dev);
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.c
index 327e54e706..82ee6d300c 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.c
@@ -14,7 +14,7 @@
 
 /* This function is used to send a command to the MFC */
 static int s5p_mfc_cmd_host2risc_v5(struct s5p_mfc_dev *dev, int cmd,
-				struct s5p_mfc_cmd_args *args)
+				    const struct s5p_mfc_cmd_args *args)
 {
 	int cur_cmd;
 	unsigned long timeout;
@@ -148,7 +148,7 @@ static int s5p_mfc_close_inst_cmd_v5(struct s5p_mfc_ctx *ctx)
 }
 
 /* Initialize cmd function pointers for MFC v5 */
-static struct s5p_mfc_hw_cmds s5p_mfc_cmds_v5 = {
+static const struct s5p_mfc_hw_cmds s5p_mfc_cmds_v5 = {
 	.cmd_host2risc = s5p_mfc_cmd_host2risc_v5,
 	.sys_init_cmd = s5p_mfc_sys_init_cmd_v5,
 	.sleep_cmd = s5p_mfc_sleep_cmd_v5,
@@ -157,7 +157,7 @@ static struct s5p_mfc_hw_cmds s5p_mfc_cmds_v5 = {
 	.close_inst_cmd = s5p_mfc_close_inst_cmd_v5,
 };
 
-struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v5(void)
+const struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v5(void)
 {
 	return &s5p_mfc_cmds_v5;
 }
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.h
index 6eafa514ae..c626376053 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v5.h
@@ -11,6 +11,6 @@
 
 #include "s5p_mfc_common.h"
 
-struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v5(void);
+const struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v5(void);
 
 #endif /* S5P_MFC_CMD_H_ */
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.c
index f8588e52df..47bc3014b5 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.c
@@ -15,7 +15,7 @@
 #include "s5p_mfc_cmd_v6.h"
 
 static int s5p_mfc_cmd_host2risc_v6(struct s5p_mfc_dev *dev, int cmd,
-				struct s5p_mfc_cmd_args *args)
+				    const struct s5p_mfc_cmd_args *args)
 {
 	mfc_debug(2, "Issue the command: %d\n", cmd);
 
@@ -32,7 +32,7 @@ static int s5p_mfc_cmd_host2risc_v6(struct s5p_mfc_dev *dev, int cmd,
 static int s5p_mfc_sys_init_cmd_v6(struct s5p_mfc_dev *dev)
 {
 	struct s5p_mfc_cmd_args h2r_args;
-	struct s5p_mfc_buf_size_v6 *buf_size = dev->variant->buf_size->priv;
+	const struct s5p_mfc_buf_size_v6 *buf_size = dev->variant->buf_size->priv;
 	int ret;
 
 	ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_dev_context_buffer, dev);
@@ -154,7 +154,7 @@ static int s5p_mfc_close_inst_cmd_v6(struct s5p_mfc_ctx *ctx)
 }
 
 /* Initialize cmd function pointers for MFC v6 */
-static struct s5p_mfc_hw_cmds s5p_mfc_cmds_v6 = {
+static const struct s5p_mfc_hw_cmds s5p_mfc_cmds_v6 = {
 	.cmd_host2risc = s5p_mfc_cmd_host2risc_v6,
 	.sys_init_cmd = s5p_mfc_sys_init_cmd_v6,
 	.sleep_cmd = s5p_mfc_sleep_cmd_v6,
@@ -163,7 +163,7 @@ static struct s5p_mfc_hw_cmds s5p_mfc_cmds_v6 = {
 	.close_inst_cmd = s5p_mfc_close_inst_cmd_v6,
 };
 
-struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v6(void)
+const struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v6(void)
 {
 	return &s5p_mfc_cmds_v6;
 }
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.h
index 9dc44460cc..29083436f5 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_cmd_v6.h
@@ -11,6 +11,6 @@
 
 #include "s5p_mfc_common.h"
 
-struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v6(void);
+const struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v6(void);
 
 #endif /* S5P_MFC_CMD_H_ */
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h
index 59450b324f..3cc2a4f5c4 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_common.h
@@ -221,15 +221,15 @@ struct s5p_mfc_buf_size_v6 {
 struct s5p_mfc_buf_size {
 	unsigned int fw;
 	unsigned int cpb;
-	void *priv;
+	const void *priv;
 };
 
 struct s5p_mfc_variant {
 	unsigned int version;
 	unsigned int port_num;
 	u32 version_bit;
-	struct s5p_mfc_buf_size *buf_size;
-	char	*fw_name[MFC_FW_MAX_VERSIONS];
+	const struct s5p_mfc_buf_size *buf_size;
+	const char	*fw_name[MFC_FW_MAX_VERSIONS];
 	const char	*clk_names[MFC_MAX_CLOCKS];
 	int		num_clocks;
 	bool		use_clock_gating;
@@ -340,8 +340,8 @@ struct s5p_mfc_dev {
 
 	struct s5p_mfc_priv_buf ctx_buf;
 	int warn_start;
-	struct s5p_mfc_hw_ops *mfc_ops;
-	struct s5p_mfc_hw_cmds *mfc_cmds;
+	const struct s5p_mfc_hw_ops *mfc_ops;
+	const struct s5p_mfc_hw_cmds *mfc_cmds;
 	const struct s5p_mfc_regs *mfc_regs;
 	enum s5p_mfc_fw_ver fw_ver;
 	bool fw_get_done;
@@ -612,7 +612,6 @@ struct s5p_mfc_codec_ops {
  * @chroma_dpb_size:	dpb buffer size for chroma
  * @me_buffer_size:	size of the motion estimation buffer
  * @tmv_buffer_size:	size of temporal predictor motion vector buffer
- * @frame_type:		used to force the type of the next encoded frame
  * @ref_queue:		list of the reference buffers for encoding
  * @force_frame_type:	encoder's frame type forcing control
  * @ref_queue_cnt:	number of the buffers in the reference list
@@ -639,8 +638,8 @@ struct s5p_mfc_ctx {
 	unsigned int int_err;
 	wait_queue_head_t queue;
 
-	struct s5p_mfc_fmt *src_fmt;
-	struct s5p_mfc_fmt *dst_fmt;
+	const struct s5p_mfc_fmt *src_fmt;
+	const struct s5p_mfc_fmt *dst_fmt;
 
 	struct vb2_queue vq_src;
 	struct vb2_queue vq_dst;
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c
index 503487f34a..625d77b2be 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_ctrl.c
@@ -221,7 +221,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
 
 	/* 0. MFC reset */
 	mfc_debug(2, "MFC reset..\n");
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 	dev->risc_on = 0;
 	ret = s5p_mfc_reset(dev);
 	if (ret) {
@@ -249,7 +249,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
 	if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_FW_STATUS_RET)) {
 		mfc_err("Failed to load firmware\n");
 		s5p_mfc_reset(dev);
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		return -EIO;
 	}
 	s5p_mfc_clean_dev_int_flags(dev);
@@ -258,14 +258,14 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
 	if (ret) {
 		mfc_err("Failed to send command to MFC - timeout\n");
 		s5p_mfc_reset(dev);
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		return ret;
 	}
 	mfc_debug(2, "Ok, now will wait for completion of hardware init\n");
 	if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_SYS_INIT_RET)) {
 		mfc_err("Failed to init hardware\n");
 		s5p_mfc_reset(dev);
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		return -EIO;
 	}
 	dev->int_cond = 0;
@@ -275,7 +275,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
 		mfc_err("Failed to init firmware - error: %d int: %d\n",
 						dev->int_err, dev->int_type);
 		s5p_mfc_reset(dev);
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		return -EIO;
 	}
 	if (IS_MFCV6_PLUS(dev))
@@ -285,7 +285,7 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
 
 	mfc_debug(2, "MFC F/W version : %02xyy, %02xmm, %02xdd\n",
 		(ver >> 16) & 0xFF, (ver >> 8) & 0xFF, ver & 0xFF);
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	mfc_debug_leave();
 	return 0;
 }
@@ -294,12 +294,12 @@ int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
 /* Deinitialize hardware */
 void s5p_mfc_deinit_hw(struct s5p_mfc_dev *dev)
 {
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 
 	s5p_mfc_reset(dev);
 	s5p_mfc_hw_call(dev->mfc_ops, release_dev_context_buffer, dev);
 
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 }
 
 int s5p_mfc_sleep(struct s5p_mfc_dev *dev)
@@ -307,7 +307,7 @@ int s5p_mfc_sleep(struct s5p_mfc_dev *dev)
 	int ret;
 
 	mfc_debug_enter();
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 	s5p_mfc_clean_dev_int_flags(dev);
 	ret = s5p_mfc_hw_call(dev->mfc_cmds, sleep_cmd, dev);
 	if (ret) {
@@ -318,7 +318,7 @@ int s5p_mfc_sleep(struct s5p_mfc_dev *dev)
 		mfc_err("Failed to sleep\n");
 		return -EIO;
 	}
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	dev->int_cond = 0;
 	if (dev->int_err != 0 || dev->int_type !=
 						S5P_MFC_R2H_CMD_SLEEP_RET) {
@@ -390,12 +390,12 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
 	mfc_debug_enter();
 	/* 0. MFC reset */
 	mfc_debug(2, "MFC reset..\n");
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 	dev->risc_on = 0;
 	ret = s5p_mfc_reset(dev);
 	if (ret) {
 		mfc_err("Failed to reset MFC - timeout\n");
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 		return ret;
 	}
 	mfc_debug(2, "Done MFC reset..\n");
@@ -410,7 +410,7 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
 	else
 		ret = s5p_mfc_wait_wakeup(dev);
 
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	if (ret)
 		return ret;
 
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c
index 3957f28d45..91e102d4ec 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c
@@ -27,7 +27,7 @@
 #include "s5p_mfc_opr.h"
 #include "s5p_mfc_pm.h"
 
-static struct s5p_mfc_fmt formats[] = {
+static const struct s5p_mfc_fmt formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_NV12MT_16X16,
 		.codec_mode	= S5P_MFC_CODEC_NONE,
@@ -177,7 +177,7 @@ static struct s5p_mfc_fmt formats[] = {
 #define NUM_FORMATS ARRAY_SIZE(formats)
 
 /* Find selected format description */
-static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
+static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
 {
 	unsigned int i;
 
@@ -406,7 +406,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
 {
 	struct s5p_mfc_dev *dev = video_drvdata(file);
-	struct s5p_mfc_fmt *fmt;
+	const struct s5p_mfc_fmt *fmt;
 
 	mfc_debug(2, "Type is %d\n", f->type);
 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
@@ -445,7 +445,7 @@ static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 	int ret = 0;
 	struct v4l2_pix_format_mplane *pix_mp;
-	struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
+	const struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
 
 	mfc_debug_enter();
 	ret = vidioc_try_fmt(file, priv, f);
@@ -496,7 +496,7 @@ static int reqbufs_output(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
 {
 	int ret = 0;
 
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 
 	if (reqbufs->count == 0) {
 		mfc_debug(2, "Freeing buffers\n");
@@ -533,7 +533,7 @@ static int reqbufs_output(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
 		ret = -EINVAL;
 	}
 out:
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	if (ret)
 		mfc_err("Failed allocating buffers for OUTPUT queue\n");
 	return ret;
@@ -544,7 +544,7 @@ static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
 {
 	int ret = 0;
 
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 
 	if (reqbufs->count == 0) {
 		mfc_debug(2, "Freeing buffers\n");
@@ -587,7 +587,7 @@ static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
 		ret = -EINVAL;
 	}
 out:
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(dev);
 	if (ret)
 		mfc_err("Failed allocating buffers for CAPTURE queue\n");
 	return ret;
@@ -1159,7 +1159,7 @@ static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
 	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 }
 
-static struct vb2_ops s5p_mfc_dec_qops = {
+static const struct vb2_ops s5p_mfc_dec_qops = {
 	.queue_setup		= s5p_mfc_queue_setup,
 	.wait_prepare		= vb2_ops_wait_prepare,
 	.wait_finish		= vb2_ops_wait_finish,
@@ -1174,7 +1174,7 @@ const struct s5p_mfc_codec_ops *get_dec_codec_ops(void)
 	return &decoder_codec_ops;
 }
 
-struct vb2_ops *get_dec_queue_ops(void)
+const struct vb2_ops *get_dec_queue_ops(void)
 {
 	return &s5p_mfc_dec_qops;
 }
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.h
index 0c52ab46cf..47a6eb9a8f 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.h
@@ -10,9 +10,8 @@
 #define S5P_MFC_DEC_H_
 
 const struct s5p_mfc_codec_ops *get_dec_codec_ops(void);
-struct vb2_ops *get_dec_queue_ops(void);
+const struct vb2_ops *get_dec_queue_ops(void);
 const struct v4l2_ioctl_ops *get_dec_v4l2_ioctl_ops(void);
-struct s5p_mfc_fmt *get_dec_def_fmt(bool src);
 int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx);
 void s5p_mfc_dec_ctrls_delete(struct s5p_mfc_ctx *ctx);
 void s5p_mfc_dec_init(struct s5p_mfc_ctx *ctx);
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c
index ef8bb40b97..81cbb36fb3 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.c
@@ -30,7 +30,7 @@
 #define DEF_SRC_FMT_ENC	V4L2_PIX_FMT_NV12M
 #define DEF_DST_FMT_ENC	V4L2_PIX_FMT_H264
 
-static struct s5p_mfc_fmt formats[] = {
+static const struct s5p_mfc_fmt formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_NV12MT_16X16,
 		.codec_mode	= S5P_MFC_CODEC_NONE,
@@ -111,7 +111,7 @@ static struct s5p_mfc_fmt formats[] = {
 };
 
 #define NUM_FORMATS ARRAY_SIZE(formats)
-static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
+static const struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
 {
 	unsigned int i;
 
@@ -1431,7 +1431,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
 {
 	struct s5p_mfc_dev *dev = video_drvdata(file);
-	struct s5p_mfc_fmt *fmt;
+	const struct s5p_mfc_fmt *fmt;
 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
 
 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
@@ -2392,7 +2392,7 @@ static const struct v4l2_ioctl_ops s5p_mfc_enc_ioctl_ops = {
 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 };
 
-static int check_vb_with_fmt(struct s5p_mfc_fmt *fmt, struct vb2_buffer *vb)
+static int check_vb_with_fmt(const struct s5p_mfc_fmt *fmt, struct vb2_buffer *vb)
 {
 	int i;
 
@@ -2650,7 +2650,7 @@ static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
 	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 }
 
-static struct vb2_ops s5p_mfc_enc_qops = {
+static const struct vb2_ops s5p_mfc_enc_qops = {
 	.queue_setup		= s5p_mfc_queue_setup,
 	.wait_prepare		= vb2_ops_wait_prepare,
 	.wait_finish		= vb2_ops_wait_finish,
@@ -2666,7 +2666,7 @@ const struct s5p_mfc_codec_ops *get_enc_codec_ops(void)
 	return &encoder_codec_ops;
 }
 
-struct vb2_ops *get_enc_queue_ops(void)
+const struct vb2_ops *get_enc_queue_ops(void)
 {
 	return &s5p_mfc_enc_qops;
 }
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.h
index 3f1b1a037a..62d6db67fd 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_enc.h
@@ -10,9 +10,8 @@
 #define S5P_MFC_ENC_H_
 
 const struct s5p_mfc_codec_ops *get_enc_codec_ops(void);
-struct vb2_ops *get_enc_queue_ops(void);
+const struct vb2_ops *get_enc_queue_ops(void);
 const struct v4l2_ioctl_ops *get_enc_v4l2_ioctl_ops(void);
-struct s5p_mfc_fmt *get_enc_def_fmt(bool src);
 int s5p_mfc_enc_ctrls_setup(struct s5p_mfc_ctx *ctx);
 void s5p_mfc_enc_ctrls_delete(struct s5p_mfc_ctx *ctx);
 void s5p_mfc_enc_init(struct s5p_mfc_ctx *ctx);
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr.c
index 6739623011..5ba791fa36 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr.c
@@ -14,18 +14,15 @@
 #include "s5p_mfc_opr_v5.h"
 #include "s5p_mfc_opr_v6.h"
 
-static struct s5p_mfc_hw_ops *s5p_mfc_ops;
-
 void s5p_mfc_init_hw_ops(struct s5p_mfc_dev *dev)
 {
 	if (IS_MFCV6_PLUS(dev)) {
-		s5p_mfc_ops = s5p_mfc_init_hw_ops_v6();
+		dev->mfc_ops = s5p_mfc_init_hw_ops_v6();
 		dev->warn_start = S5P_FIMV_ERR_WARNINGS_START_V6;
 	} else {
-		s5p_mfc_ops = s5p_mfc_init_hw_ops_v5();
+		dev->mfc_ops = s5p_mfc_init_hw_ops_v5();
 		dev->warn_start = S5P_FIMV_ERR_WARNINGS_START;
 	}
-	dev->mfc_ops = s5p_mfc_ops;
 }
 
 void s5p_mfc_init_regs(struct s5p_mfc_dev *dev)
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c
index fcfaf125a5..365f552e60 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.c
@@ -34,7 +34,7 @@
 static int s5p_mfc_alloc_dec_temp_buffers_v5(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_buf_size_v5 *buf_size = dev->variant->buf_size->priv;
+	const struct s5p_mfc_buf_size_v5 *buf_size = dev->variant->buf_size->priv;
 	int ret;
 
 	ctx->dsc.size = buf_size->dsc;
@@ -200,7 +200,7 @@ static void s5p_mfc_release_codec_buffers_v5(struct s5p_mfc_ctx *ctx)
 static int s5p_mfc_alloc_instance_buffer_v5(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_buf_size_v5 *buf_size = dev->variant->buf_size->priv;
+	const struct s5p_mfc_buf_size_v5 *buf_size = dev->variant->buf_size->priv;
 	int ret;
 
 	if (ctx->codec_mode == S5P_MFC_CODEC_H264_DEC ||
@@ -345,7 +345,7 @@ static void s5p_mfc_enc_calc_src_size_v5(struct s5p_mfc_ctx *ctx)
 static void s5p_mfc_set_dec_desc_buffer(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_buf_size_v5 *buf_size = dev->variant->buf_size->priv;
+	const struct s5p_mfc_buf_size_v5 *buf_size = dev->variant->buf_size->priv;
 
 	mfc_write(dev, OFFSETA(ctx->dsc.dma), S5P_FIMV_SI_CH0_DESC_ADR);
 	mfc_write(dev, buf_size->dsc, S5P_FIMV_SI_CH0_DESC_SIZE);
@@ -676,7 +676,7 @@ static int s5p_mfc_set_enc_ref_buffer_v5(struct s5p_mfc_ctx *ctx)
 static int s5p_mfc_set_enc_params(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
 	unsigned int reg;
 	unsigned int shm;
 
@@ -759,8 +759,8 @@ static int s5p_mfc_set_enc_params(struct s5p_mfc_ctx *ctx)
 static int s5p_mfc_set_enc_params_h264(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
-	struct s5p_mfc_h264_enc_params *p_264 = &p->codec.h264;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_h264_enc_params *p_264 = &p->codec.h264;
 	unsigned int reg;
 	unsigned int shm;
 
@@ -916,8 +916,8 @@ static int s5p_mfc_set_enc_params_h264(struct s5p_mfc_ctx *ctx)
 static int s5p_mfc_set_enc_params_mpeg4(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
-	struct s5p_mfc_mpeg4_enc_params *p_mpeg4 = &p->codec.mpeg4;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_mpeg4_enc_params *p_mpeg4 = &p->codec.mpeg4;
 	unsigned int reg;
 	unsigned int shm;
 	unsigned int framerate;
@@ -995,8 +995,8 @@ static int s5p_mfc_set_enc_params_mpeg4(struct s5p_mfc_ctx *ctx)
 static int s5p_mfc_set_enc_params_h263(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
-	struct s5p_mfc_mpeg4_enc_params *p_h263 = &p->codec.mpeg4;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_mpeg4_enc_params *p_h263 = &p->codec.mpeg4;
 	unsigned int reg;
 	unsigned int shm;
 
@@ -1348,7 +1348,7 @@ static void s5p_mfc_try_run_v5(struct s5p_mfc_dev *dev)
 	 * Last frame has already been sent to MFC.
 	 * Now obtaining frames from MFC buffer
 	 */
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 	s5p_mfc_clean_ctx_int_flags(ctx);
 
 	if (ctx->type == MFCINST_DECODER) {
@@ -1424,7 +1424,7 @@ static void s5p_mfc_try_run_v5(struct s5p_mfc_dev *dev)
 		 * scheduled, reduce the clock count as no one will
 		 * ever do this, because no interrupt related to this try_run
 		 * will ever come from hardware. */
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 	}
 }
 
@@ -1593,7 +1593,7 @@ static unsigned int s5p_mfc_get_crop_info_v_v5(struct s5p_mfc_ctx *ctx)
 }
 
 /* Initialize opr function pointers for MFC v5 */
-static struct s5p_mfc_hw_ops s5p_mfc_ops_v5 = {
+static const struct s5p_mfc_hw_ops s5p_mfc_ops_v5 = {
 	.alloc_dec_temp_buffers = s5p_mfc_alloc_dec_temp_buffers_v5,
 	.release_dec_desc_buffer = s5p_mfc_release_dec_desc_buffer_v5,
 	.alloc_codec_buffers = s5p_mfc_alloc_codec_buffers_v5,
@@ -1633,7 +1633,7 @@ static struct s5p_mfc_hw_ops s5p_mfc_ops_v5 = {
 	.get_crop_info_v = s5p_mfc_get_crop_info_v_v5,
 };
 
-struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v5(void)
+const struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v5(void)
 {
 	return &s5p_mfc_ops_v5;
 }
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.h
index b53d376ead..0b98c61967 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v5.h
@@ -78,5 +78,5 @@ enum MFC_SHM_OFS {
 	FRAME_PACK_SEI_INFO	= 0x17c, /* E */
 };
 
-struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v5(void);
+const struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v5(void);
 #endif /* S5P_MFC_OPR_H_ */
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c
index fd945211d2..73f7af674c 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c
@@ -383,7 +383,7 @@ static void s5p_mfc_release_codec_buffers_v6(struct s5p_mfc_ctx *ctx)
 static int s5p_mfc_alloc_instance_buffer_v6(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
-	struct s5p_mfc_buf_size_v6 *buf_size = dev->variant->buf_size->priv;
+	const struct s5p_mfc_buf_size_v6 *buf_size = dev->variant->buf_size->priv;
 	int ret;
 
 	mfc_debug_enter();
@@ -443,7 +443,7 @@ static void s5p_mfc_release_instance_buffer_v6(struct s5p_mfc_ctx *ctx)
 /* Allocate context buffers for SYS_INIT */
 static int s5p_mfc_alloc_dev_context_buffer_v6(struct s5p_mfc_dev *dev)
 {
-	struct s5p_mfc_buf_size_v6 *buf_size = dev->variant->buf_size->priv;
+	const struct s5p_mfc_buf_size_v6 *buf_size = dev->variant->buf_size->priv;
 	int ret;
 
 	mfc_debug_enter();
@@ -587,7 +587,7 @@ static int s5p_mfc_set_dec_stream_buffer_v6(struct s5p_mfc_ctx *ctx,
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	const struct s5p_mfc_regs *mfc_regs = dev->mfc_regs;
-	struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
+	const struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
 
 	mfc_debug_enter();
 	mfc_debug(2, "inst_no: %d, buf_addr: 0x%08x,\n"
@@ -863,7 +863,7 @@ static int s5p_mfc_set_enc_params(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	const struct s5p_mfc_regs *mfc_regs = dev->mfc_regs;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
 	unsigned int reg = 0;
 
 	mfc_debug_enter();
@@ -1349,8 +1349,8 @@ static int s5p_mfc_set_enc_params_mpeg4(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	const struct s5p_mfc_regs *mfc_regs = dev->mfc_regs;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
-	struct s5p_mfc_mpeg4_enc_params *p_mpeg4 = &p->codec.mpeg4;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_mpeg4_enc_params *p_mpeg4 = &p->codec.mpeg4;
 	unsigned int reg = 0;
 
 	mfc_debug_enter();
@@ -1431,8 +1431,8 @@ static int s5p_mfc_set_enc_params_h263(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	const struct s5p_mfc_regs *mfc_regs = dev->mfc_regs;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
-	struct s5p_mfc_mpeg4_enc_params *p_h263 = &p->codec.mpeg4;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_mpeg4_enc_params *p_h263 = &p->codec.mpeg4;
 	unsigned int reg = 0;
 
 	mfc_debug_enter();
@@ -1501,8 +1501,8 @@ static int s5p_mfc_set_enc_params_vp8(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	const struct s5p_mfc_regs *mfc_regs = dev->mfc_regs;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
-	struct s5p_mfc_vp8_enc_params *p_vp8 = &p->codec.vp8;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_vp8_enc_params *p_vp8 = &p->codec.vp8;
 	unsigned int reg = 0;
 	unsigned int val = 0;
 
@@ -1897,8 +1897,8 @@ static int s5p_mfc_h264_set_aso_slice_order_v6(struct s5p_mfc_ctx *ctx)
 {
 	struct s5p_mfc_dev *dev = ctx->dev;
 	const struct s5p_mfc_regs *mfc_regs = dev->mfc_regs;
-	struct s5p_mfc_enc_params *p = &ctx->enc_params;
-	struct s5p_mfc_h264_enc_params *p_h264 = &p->codec.h264;
+	const struct s5p_mfc_enc_params *p = &ctx->enc_params;
+	const struct s5p_mfc_h264_enc_params *p_h264 = &p->codec.h264;
 	int i;
 
 	if (p_h264->aso) {
@@ -2165,7 +2165,7 @@ static void s5p_mfc_try_run_v6(struct s5p_mfc_dev *dev)
 	/* Last frame has already been sent to MFC
 	 * Now obtaining frames from MFC buffer */
 
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(dev);
 	s5p_mfc_clean_ctx_int_flags(ctx);
 
 	if (ctx->type == MFCINST_DECODER) {
@@ -2245,7 +2245,7 @@ static void s5p_mfc_try_run_v6(struct s5p_mfc_dev *dev)
 		 * scheduled, reduce the clock count as no one will
 		 * ever do this, because no interrupt related to this try_run
 		 * will ever come from hardware. */
-		s5p_mfc_clock_off();
+		s5p_mfc_clock_off(dev);
 	}
 }
 
@@ -2261,9 +2261,9 @@ s5p_mfc_read_info_v6(struct s5p_mfc_ctx *ctx, unsigned long ofs)
 {
 	int ret;
 
-	s5p_mfc_clock_on();
+	s5p_mfc_clock_on(ctx->dev);
 	ret = readl((void __iomem *)ofs);
-	s5p_mfc_clock_off();
+	s5p_mfc_clock_off(ctx->dev);
 
 	return ret;
 }
@@ -2657,7 +2657,7 @@ done:
 }
 
 /* Initialize opr function pointers for MFC v6 */
-static struct s5p_mfc_hw_ops s5p_mfc_ops_v6 = {
+static const struct s5p_mfc_hw_ops s5p_mfc_ops_v6 = {
 	.alloc_dec_temp_buffers = s5p_mfc_alloc_dec_temp_buffers_v6,
 	.release_dec_desc_buffer = s5p_mfc_release_dec_desc_buffer_v6,
 	.alloc_codec_buffers = s5p_mfc_alloc_codec_buffers_v6,
@@ -2701,7 +2701,7 @@ static struct s5p_mfc_hw_ops s5p_mfc_ops_v6 = {
 	.get_e_min_scratch_buf_size = s5p_mfc_get_e_min_scratch_buf_size,
 };
 
-struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v6(void)
+const struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v6(void)
 {
 	return &s5p_mfc_ops_v6;
 }
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h
index 94ecb0e6e7..7fc1307675 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.h
@@ -51,6 +51,6 @@
 
 #define FRAME_DELTA_DEFAULT		1
 
-struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v6(void);
+const struct s5p_mfc_hw_ops *s5p_mfc_init_hw_ops_v6(void);
 const struct s5p_mfc_regs *s5p_mfc_init_regs_v6_plus(struct s5p_mfc_dev *dev);
 #endif /* S5P_MFC_OPR_V6_H_ */
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c
index 187849841a..ae42414083 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.c
@@ -14,17 +14,11 @@
 #include "s5p_mfc_debug.h"
 #include "s5p_mfc_pm.h"
 
-static struct s5p_mfc_pm *pm;
-static struct s5p_mfc_dev *p_dev;
-static atomic_t clk_ref;
-
 int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
 {
+	struct s5p_mfc_pm *pm = &dev->pm;
 	int i;
 
-	pm = &dev->pm;
-	p_dev = dev;
-
 	pm->num_clocks = dev->variant->num_clocks;
 	pm->clk_names = dev->variant->clk_names;
 	pm->device = &dev->plat_dev->dev;
@@ -49,70 +43,63 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
 		pm->clock_gate = pm->clocks[0];
 
 	pm_runtime_enable(pm->device);
-	atomic_set(&clk_ref, 0);
 	return 0;
 }
 
 void s5p_mfc_final_pm(struct s5p_mfc_dev *dev)
 {
-	pm_runtime_disable(pm->device);
+	pm_runtime_disable(dev->pm.device);
 }
 
-int s5p_mfc_clock_on(void)
+int s5p_mfc_clock_on(struct s5p_mfc_dev *dev)
 {
-	atomic_inc(&clk_ref);
-	mfc_debug(3, "+ %d\n", atomic_read(&clk_ref));
-
-	return clk_enable(pm->clock_gate);
+	return clk_enable(dev->pm.clock_gate);
 }
 
-void s5p_mfc_clock_off(void)
+void s5p_mfc_clock_off(struct s5p_mfc_dev *dev)
 {
-	atomic_dec(&clk_ref);
-	mfc_debug(3, "- %d\n", atomic_read(&clk_ref));
-
-	clk_disable(pm->clock_gate);
+	clk_disable(dev->pm.clock_gate);
 }
 
-int s5p_mfc_power_on(void)
+int s5p_mfc_power_on(struct s5p_mfc_dev *dev)
 {
 	int i, ret = 0;
 
-	ret = pm_runtime_resume_and_get(pm->device);
+	ret = pm_runtime_resume_and_get(dev->pm.device);
 	if (ret < 0)
 		return ret;
 
 	/* clock control */
-	for (i = 0; i < pm->num_clocks; i++) {
-		ret = clk_prepare_enable(pm->clocks[i]);
+	for (i = 0; i < dev->pm.num_clocks; i++) {
+		ret = clk_prepare_enable(dev->pm.clocks[i]);
 		if (ret < 0) {
 			mfc_err("clock prepare failed for clock: %s\n",
-				pm->clk_names[i]);
+				dev->pm.clk_names[i]);
 			goto err;
 		}
 	}
 
 	/* prepare for software clock gating */
-	clk_disable(pm->clock_gate);
+	clk_disable(dev->pm.clock_gate);
 
 	return 0;
 err:
 	while (--i >= 0)
-		clk_disable_unprepare(pm->clocks[i]);
-	pm_runtime_put(pm->device);
+		clk_disable_unprepare(dev->pm.clocks[i]);
+	pm_runtime_put(dev->pm.device);
 	return ret;
 }
 
-int s5p_mfc_power_off(void)
+int s5p_mfc_power_off(struct s5p_mfc_dev *dev)
 {
 	int i;
 
 	/* finish software clock gating */
-	clk_enable(pm->clock_gate);
+	clk_enable(dev->pm.clock_gate);
 
-	for (i = 0; i < pm->num_clocks; i++)
-		clk_disable_unprepare(pm->clocks[i]);
+	for (i = 0; i < dev->pm.num_clocks; i++)
+		clk_disable_unprepare(dev->pm.clocks[i]);
 
-	return pm_runtime_put_sync(pm->device);
+	return pm_runtime_put_sync(dev->pm.device);
 }
 
diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h
index 4159d2364e..9c71036f03 100644
--- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h
+++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_pm.h
@@ -12,9 +12,9 @@
 int s5p_mfc_init_pm(struct s5p_mfc_dev *dev);
 void s5p_mfc_final_pm(struct s5p_mfc_dev *dev);
 
-int s5p_mfc_clock_on(void);
-void s5p_mfc_clock_off(void);
-int s5p_mfc_power_on(void);
-int s5p_mfc_power_off(void);
+int s5p_mfc_clock_on(struct s5p_mfc_dev *dev);
+void s5p_mfc_clock_off(struct s5p_mfc_dev *dev);
+int s5p_mfc_power_on(struct s5p_mfc_dev *dev);
+int s5p_mfc_power_off(struct s5p_mfc_dev *dev);
 
 #endif /* S5P_MFC_PM_H_ */