media: chips-media: wave5: Add the v4l2 layer

Add the decoder and encoder implementing the v4l2
API. This patch also adds the Makefile and the VIDEO_WAVE_VPU config
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Signed-off-by: Nas Chung <nas.chung@chipsnmedia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/chips-media/Kconfig

@@ -3,3 +3,4 @@
 comment "Chips&Media media platform drivers"
 
 source "drivers/media/platform/chips-media/coda/Kconfig"
+source "drivers/media/platform/chips-media/wave5/Kconfig"

drivers/media/platform/chips-media/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
 
 obj-y += coda/
+obj-y += wave5/

drivers/media/platform/chips-media/wave5/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+config VIDEO_WAVE_VPU
+	tristate "Chips&Media Wave Codec Driver"
+	depends on VIDEO_DEV
+	select VIDEOBUF2_DMA_CONTIG
+	select VIDEOBUF2_VMALLOC
+	select V4L2_MEM2MEM_DEV
+	help
+	  Chips&Media stateful encoder and decoder driver.
+	  The driver supports HEVC and H264 formats.
+	  To compile this driver as modules, choose M here: the
+	  modules will be called wave5.

drivers/media/platform/chips-media/wave5/Makefile

+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_VIDEO_WAVE_VPU) += wave5.o
+wave5-objs +=  	wave5-hw.o \
+		wave5-vpuapi.o \
+		wave5-vdi.o \
+		wave5-vpu-dec.o \
+		wave5-vpu.o \
+		wave5-vpu-enc.o \
+		wave5-helper.o

drivers/media/platform/chips-media/wave5/wave5-helper.c

+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Wave5 series multi-standard codec IP - decoder interface
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+
+#include "wave5-helper.h"
+
+const char *state_to_str(enum vpu_instance_state state)
+{
+	switch (state) {
+	case VPU_INST_STATE_NONE:
+		return "NONE";
+	case VPU_INST_STATE_OPEN:
+		return "OPEN";
+	case VPU_INST_STATE_INIT_SEQ:
+		return "INIT_SEQ";
+	case VPU_INST_STATE_PIC_RUN:
+		return "PIC_RUN";
+	case VPU_INST_STATE_STOP:
+		return "STOP";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+void wave5_cleanup_instance(struct vpu_instance *inst)
+{
+	int i;
+
+	if (list_is_singular(&inst->list))
+		wave5_vdi_free_sram(inst->dev);
+
+	for (i = 0; i < inst->fbc_buf_count; i++)
+		wave5_vpu_dec_reset_framebuffer(inst, i);
+
+	wave5_vdi_free_dma_memory(inst->dev, &inst->bitstream_vbuf);
+	v4l2_ctrl_handler_free(&inst->v4l2_ctrl_hdl);
+	if (inst->v4l2_fh.vdev) {
+		v4l2_fh_del(&inst->v4l2_fh);
+		v4l2_fh_exit(&inst->v4l2_fh);
+	}
+	list_del_init(&inst->list);
+	ida_free(&inst->dev->inst_ida, inst->id);
+	kfree(inst->codec_info);
+	kfree(inst);
+}
+
+int wave5_vpu_release_device(struct file *filp,
+			     int (*close_func)(struct vpu_instance *inst, u32 *fail_res),
+			     char *name)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(filp->private_data);
+
+	v4l2_m2m_ctx_release(inst->v4l2_fh.m2m_ctx);
+	if (inst->state != VPU_INST_STATE_NONE) {
+		u32 fail_res;
+		int ret;
+
+		ret = close_func(inst, &fail_res);
+		if (fail_res == WAVE5_SYSERR_VPU_STILL_RUNNING) {
+			dev_err(inst->dev->dev, "%s close failed, device is still running\n",
+				name);
+			return -EBUSY;
+		}
+		if (ret && ret != -EIO) {
+			dev_err(inst->dev->dev, "%s close, fail: %d\n", name, ret);
+			return ret;
+		}
+	}
+
+	wave5_cleanup_instance(inst);
+
+	return 0;
+}
+
+int wave5_vpu_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq,
+			 const struct vb2_ops *ops)
+{
+	struct vpu_instance *inst = priv;
+	int ret;
+
+	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+	src_vq->mem_ops = &vb2_dma_contig_memops;
+	src_vq->ops = ops;
+	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	src_vq->buf_struct_size = sizeof(struct vpu_src_buffer);
+	src_vq->drv_priv = inst;
+	src_vq->lock = &inst->dev->dev_lock;
+	src_vq->dev = inst->dev->v4l2_dev.dev;
+	ret = vb2_queue_init(src_vq);
+	if (ret)
+		return ret;
+
+	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
+	dst_vq->mem_ops = &vb2_dma_contig_memops;
+	dst_vq->ops = ops;
+	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	dst_vq->buf_struct_size = sizeof(struct vpu_src_buffer);
+	dst_vq->drv_priv = inst;
+	dst_vq->lock = &inst->dev->dev_lock;
+	dst_vq->dev = inst->dev->v4l2_dev.dev;
+	ret = vb2_queue_init(dst_vq);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int wave5_vpu_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	bool is_decoder = inst->type == VPU_INST_TYPE_DEC;
+
+	dev_dbg(inst->dev->dev, "%s: [%s] type: %u id: %u | flags: %u\n", __func__,
+		is_decoder ? "decoder" : "encoder", sub->type, sub->id, sub->flags);
+
+	switch (sub->type) {
+	case V4L2_EVENT_EOS:
+		return v4l2_event_subscribe(fh, sub, 0, NULL);
+	case V4L2_EVENT_SOURCE_CHANGE:
+		if (is_decoder)
+			return v4l2_src_change_event_subscribe(fh, sub);
+		return -EINVAL;
+	case V4L2_EVENT_CTRL:
+		return v4l2_ctrl_subscribe_event(fh, sub);
+	default:
+		return -EINVAL;
+	}
+}
+
+int wave5_vpu_g_fmt_out(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i;
+
+	f->fmt.pix_mp.width = inst->src_fmt.width;
+	f->fmt.pix_mp.height = inst->src_fmt.height;
+	f->fmt.pix_mp.pixelformat = inst->src_fmt.pixelformat;
+	f->fmt.pix_mp.field = inst->src_fmt.field;
+	f->fmt.pix_mp.flags = inst->src_fmt.flags;
+	f->fmt.pix_mp.num_planes = inst->src_fmt.num_planes;
+	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
+		f->fmt.pix_mp.plane_fmt[i].bytesperline = inst->src_fmt.plane_fmt[i].bytesperline;
+		f->fmt.pix_mp.plane_fmt[i].sizeimage = inst->src_fmt.plane_fmt[i].sizeimage;
+	}
+
+	f->fmt.pix_mp.colorspace = inst->colorspace;
+	f->fmt.pix_mp.ycbcr_enc = inst->ycbcr_enc;
+	f->fmt.pix_mp.quantization = inst->quantization;
+	f->fmt.pix_mp.xfer_func = inst->xfer_func;
+
+	return 0;
+}
+
+const struct vpu_format *wave5_find_vpu_fmt(unsigned int v4l2_pix_fmt,
+					    const struct vpu_format fmt_list[MAX_FMTS])
+{
+	unsigned int index;
+
+	for (index = 0; index < MAX_FMTS; index++) {
+		if (fmt_list[index].v4l2_pix_fmt == v4l2_pix_fmt)
+			return &fmt_list[index];
+	}
+
+	return NULL;
+}
+
+const struct vpu_format *wave5_find_vpu_fmt_by_idx(unsigned int idx,
+						   const struct vpu_format fmt_list[MAX_FMTS])
+{
+	if (idx >= MAX_FMTS)
+		return NULL;
+
+	if (!fmt_list[idx].v4l2_pix_fmt)
+		return NULL;
+
+	return &fmt_list[idx];
+}
+
+enum wave_std wave5_to_vpu_std(unsigned int v4l2_pix_fmt, enum vpu_instance_type type)
+{
+	switch (v4l2_pix_fmt) {
+	case V4L2_PIX_FMT_H264:
+		return type == VPU_INST_TYPE_DEC ? W_AVC_DEC : W_AVC_ENC;
+	case V4L2_PIX_FMT_HEVC:
+		return type == VPU_INST_TYPE_DEC ? W_HEVC_DEC : W_HEVC_ENC;
+	default:
+		return STD_UNKNOWN;
+	}
+}
+
+void wave5_return_bufs(struct vb2_queue *q, u32 state)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct v4l2_ctrl_handler v4l2_ctrl_hdl = inst->v4l2_ctrl_hdl;
+	struct vb2_v4l2_buffer *vbuf;
+
+	for (;;) {
+		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+			vbuf = v4l2_m2m_src_buf_remove(m2m_ctx);
+		else
+			vbuf = v4l2_m2m_dst_buf_remove(m2m_ctx);
+		if (!vbuf)
+			return;
+		v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req, &v4l2_ctrl_hdl);
+		v4l2_m2m_buf_done(vbuf, state);
+	}
+}

drivers/media/platform/chips-media/wave5/wave5-helper.h

+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Wave5 series multi-standard codec IP - basic types
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+
+#ifndef __WAVE_HELPER_H__
+#define __WAVE_HELPER_H__
+
+#include "wave5-vpu.h"
+
+#define FMT_TYPES	2
+#define MAX_FMTS	12
+
+const char *state_to_str(enum vpu_instance_state state);
+void wave5_cleanup_instance(struct vpu_instance *inst);
+int wave5_vpu_release_device(struct file *filp,
+			     int (*close_func)(struct vpu_instance *inst, u32 *fail_res),
+			     char *name);
+int wave5_vpu_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq,
+			 const struct vb2_ops *ops);
+int wave5_vpu_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub);
+int wave5_vpu_g_fmt_out(struct file *file, void *fh, struct v4l2_format *f);
+const struct vpu_format *wave5_find_vpu_fmt(unsigned int v4l2_pix_fmt,
+					    const struct vpu_format fmt_list[MAX_FMTS]);
+const struct vpu_format *wave5_find_vpu_fmt_by_idx(unsigned int idx,
+						   const struct vpu_format fmt_list[MAX_FMTS]);
+enum wave_std wave5_to_vpu_std(unsigned int v4l2_pix_fmt, enum vpu_instance_type type);
+void wave5_return_bufs(struct vb2_queue *q, u32 state);
+#endif

drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c

+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Wave5 series multi-standard codec IP - decoder interface
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+
+#include "wave5-helper.h"
+
+#define VPU_DEC_DEV_NAME "C&M Wave5 VPU decoder"
+#define VPU_DEC_DRV_NAME "wave5-dec"
+
+#define DEFAULT_SRC_SIZE(width, height) ({			\
+	(width) * (height) / 8 * 3;					\
+})
+
+static const struct vpu_format dec_fmt_list[FMT_TYPES][MAX_FMTS] = {
+	[VPU_FMT_TYPE_CODEC] = {
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_HEVC,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_H264,
+			.max_width = 8192,
+			.min_width = 32,
+			.max_height = 4320,
+			.min_height = 32,
+		},
+	},
+	[VPU_FMT_TYPE_RAW] = {
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_YUV420,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV12,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV21,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_YUV422P,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV16,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV61,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_YUV420M,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV12M,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV21M,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_YUV422M,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV16M,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV61M,
+			.max_width = 8192,
+			.min_width = 8,
+			.max_height = 4320,
+			.min_height = 8,
+		},
+	}
+};
+
+/*
+ * Make sure that the state switch is allowed and add logging for debugging
+ * purposes
+ */
+static int switch_state(struct vpu_instance *inst, enum vpu_instance_state state)
+{
+	switch (state) {
+	case VPU_INST_STATE_NONE:
+		break;
+	case VPU_INST_STATE_OPEN:
+		if (inst->state != VPU_INST_STATE_NONE)
+			goto invalid_state_switch;
+		goto valid_state_switch;
+	case VPU_INST_STATE_INIT_SEQ:
+		if (inst->state != VPU_INST_STATE_OPEN && inst->state != VPU_INST_STATE_STOP)
+			goto invalid_state_switch;
+		goto valid_state_switch;
+	case VPU_INST_STATE_PIC_RUN:
+		if (inst->state != VPU_INST_STATE_INIT_SEQ)
+			goto invalid_state_switch;
+		goto valid_state_switch;
+	case VPU_INST_STATE_STOP:
+		goto valid_state_switch;
+	}
+invalid_state_switch:
+	WARN(1, "Invalid state switch from %s to %s.\n",
+	     state_to_str(inst->state), state_to_str(state));
+	return -EINVAL;
+valid_state_switch:
+	dev_dbg(inst->dev->dev, "Switch state from %s to %s.\n",
+		state_to_str(inst->state), state_to_str(state));
+	inst->state = state;
+	return 0;
+}
+
+static int wave5_vpu_dec_set_eos_on_firmware(struct vpu_instance *inst)
+{
+	int ret;
+
+	ret = wave5_vpu_dec_update_bitstream_buffer(inst, 0);
+	if (ret) {
+		/*
+		 * To set the EOS flag, a command is sent to the firmware.
+		 * That command may never return (timeout) or may report an error.
+		 */
+		dev_err(inst->dev->dev,
+			"Setting EOS for the bitstream, fail: %d\n", ret);
+		return ret;
+	}
+	return 0;
+}
+
+static bool wave5_last_src_buffer_consumed(struct v4l2_m2m_ctx *m2m_ctx)
+{
+	struct vpu_src_buffer *vpu_buf;
+
+	if (!m2m_ctx->last_src_buf)
+		return false;
+
+	vpu_buf = wave5_to_vpu_src_buf(m2m_ctx->last_src_buf);
+	return vpu_buf->consumed;
+}
+
+static void wave5_handle_src_buffer(struct vpu_instance *inst, dma_addr_t rd_ptr)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct v4l2_m2m_buffer *buf, *n;
+	size_t consumed_bytes = 0;
+
+	if (rd_ptr >= inst->last_rd_ptr) {
+		consumed_bytes = rd_ptr - inst->last_rd_ptr;
+	} else {
+		size_t rd_offs = rd_ptr - inst->bitstream_vbuf.daddr;
+		size_t last_rd_offs = inst->last_rd_ptr - inst->bitstream_vbuf.daddr;
+
+		consumed_bytes = rd_offs + (inst->bitstream_vbuf.size - last_rd_offs);
+	}
+
+	inst->last_rd_ptr = rd_ptr;
+	consumed_bytes += inst->remaining_consumed_bytes;
+
+	dev_dbg(inst->dev->dev, "%s: %zu bytes of bitstream was consumed", __func__,
+		consumed_bytes);
+
+	v4l2_m2m_for_each_src_buf_safe(m2m_ctx, buf, n) {
+		struct vb2_v4l2_buffer *src_buf = &buf->vb;
+		size_t src_size = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
+
+		if (src_size > consumed_bytes)
+			break;
+
+		dev_dbg(inst->dev->dev, "%s: removing src buffer %i",
+			__func__, src_buf->vb2_buf.index);
+		src_buf = v4l2_m2m_src_buf_remove(m2m_ctx);
+		inst->timestamp = src_buf->vb2_buf.timestamp;
+		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
+		consumed_bytes -= src_size;
+
+		/* Handle the case the last bitstream buffer has been picked */
+		if (src_buf == m2m_ctx->last_src_buf) {
+			int ret;
+
+			m2m_ctx->last_src_buf = NULL;
+			ret = wave5_vpu_dec_set_eos_on_firmware(inst);
+			if (ret)
+				dev_warn(inst->dev->dev,
+					 "Setting EOS for the bitstream, fail: %d\n", ret);
+			break;
+		}
+	}
+
+	inst->remaining_consumed_bytes = consumed_bytes;
+}
+
+static void wave5_update_pix_fmt(struct v4l2_pix_format_mplane *pix_mp, unsigned int width,
+				 unsigned int height)
+{
+	switch (pix_mp->pixelformat) {
+	case V4L2_PIX_FMT_YUV420:
+	case V4L2_PIX_FMT_NV12:
+	case V4L2_PIX_FMT_NV21:
+		pix_mp->width = round_up(width, 32);
+		pix_mp->height = round_up(height, 16);
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = width * height * 3 / 2;
+		break;
+	case V4L2_PIX_FMT_YUV422P:
+	case V4L2_PIX_FMT_NV16:
+	case V4L2_PIX_FMT_NV61:
+		pix_mp->width = round_up(width, 32);
+		pix_mp->height = round_up(height, 16);
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = width * height * 2;
+		break;
+	case V4L2_PIX_FMT_YUV420M:
+		pix_mp->width = round_up(width, 32);
+		pix_mp->height = round_up(height, 16);
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = width * height;
+		pix_mp->plane_fmt[1].bytesperline = round_up(width, 32) / 2;
+		pix_mp->plane_fmt[1].sizeimage = width * height / 4;
+		pix_mp->plane_fmt[2].bytesperline = round_up(width, 32) / 2;
+		pix_mp->plane_fmt[2].sizeimage = width * height / 4;
+		break;
+	case V4L2_PIX_FMT_NV12M:
+	case V4L2_PIX_FMT_NV21M:
+		pix_mp->width = round_up(width, 32);
+		pix_mp->height = round_up(height, 16);
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = width * height;
+		pix_mp->plane_fmt[1].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[1].sizeimage = width * height / 2;
+		break;
+	case V4L2_PIX_FMT_YUV422M:
+		pix_mp->width = round_up(width, 32);
+		pix_mp->height = round_up(height, 16);
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = width * height;
+		pix_mp->plane_fmt[1].bytesperline = round_up(width, 32) / 2;
+		pix_mp->plane_fmt[1].sizeimage = width * height / 2;
+		pix_mp->plane_fmt[2].bytesperline = round_up(width, 32) / 2;
+		pix_mp->plane_fmt[2].sizeimage = width * height / 2;
+		break;
+	case V4L2_PIX_FMT_NV16M:
+	case V4L2_PIX_FMT_NV61M:
+		pix_mp->width = round_up(width, 32);
+		pix_mp->height = round_up(height, 16);
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = width * height;
+		pix_mp->plane_fmt[1].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[1].sizeimage = width * height;
+		break;
+	default:
+		pix_mp->width = width;
+		pix_mp->height = height;
+		pix_mp->plane_fmt[0].bytesperline = 0;
+		pix_mp->plane_fmt[0].sizeimage = max(DEFAULT_SRC_SIZE(width, height),
+						     pix_mp->plane_fmt[0].sizeimage);
+		break;
+	}
+}
+
+static int start_decode(struct vpu_instance *inst, u32 *fail_res)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	int ret = 0;
+
+	ret = wave5_vpu_dec_start_one_frame(inst, fail_res);
+	if (ret) {
+		struct vb2_v4l2_buffer *src_buf;
+
+		src_buf = v4l2_m2m_src_buf_remove(m2m_ctx);
+		if (src_buf)
+			v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
+		switch_state(inst, VPU_INST_STATE_STOP);
+
+		dev_dbg(inst->dev->dev, "%s: pic run failed / finish job", __func__);
+		v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+	}
+
+	return ret;
+}
+
+static void flag_last_buffer_done(struct vpu_instance *inst)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct vb2_v4l2_buffer *vb;
+	int i;
+
+	lockdep_assert_held(&inst->state_spinlock);
+
+	vb = v4l2_m2m_dst_buf_remove(m2m_ctx);
+	if (!vb) {
+		m2m_ctx->is_draining = true;
+		m2m_ctx->next_buf_last = true;
+		return;
+	}
+
+	for (i = 0; i < vb->vb2_buf.num_planes; i++)
+		vb2_set_plane_payload(&vb->vb2_buf, i, 0);
+	vb->field = V4L2_FIELD_NONE;
+
+	v4l2_m2m_last_buffer_done(m2m_ctx, vb);
+}
+
+static void send_eos_event(struct vpu_instance *inst)
+{
+	static const struct v4l2_event vpu_event_eos = {
+		.type = V4L2_EVENT_EOS
+	};
+
+	lockdep_assert_held(&inst->state_spinlock);
+
+	v4l2_event_queue_fh(&inst->v4l2_fh, &vpu_event_eos);
+	inst->eos = false;
+}
+
+static int handle_dynamic_resolution_change(struct vpu_instance *inst)
+{
+	struct v4l2_fh *fh = &inst->v4l2_fh;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	static const struct v4l2_event vpu_event_src_ch = {
+		.type = V4L2_EVENT_SOURCE_CHANGE,
+		.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
+	};
+	struct dec_info *p_dec_info = &inst->codec_info->dec_info;
+	struct dec_initial_info *initial_info = &inst->codec_info->dec_info.initial_info;
+
+	lockdep_assert_held(&inst->state_spinlock);
+
+	dev_dbg(inst->dev->dev, "%s: rd_ptr %pad", __func__, &initial_info->rd_ptr);
+
+	dev_dbg(inst->dev->dev, "%s: width: %u height: %u profile: %u | minbuffer: %u\n",
+		__func__, initial_info->pic_width, initial_info->pic_height,
+		initial_info->profile, initial_info->min_frame_buffer_count);
+
+	inst->needs_reallocation = true;
+	inst->fbc_buf_count = initial_info->min_frame_buffer_count + 1;
+	if (inst->fbc_buf_count != v4l2_m2m_num_dst_bufs_ready(m2m_ctx)) {
+		struct v4l2_ctrl *ctrl;
+
+		ctrl = v4l2_ctrl_find(&inst->v4l2_ctrl_hdl,
+				      V4L2_CID_MIN_BUFFERS_FOR_CAPTURE);
+		if (ctrl)
+			v4l2_ctrl_s_ctrl(ctrl, inst->fbc_buf_count);
+	}
+
+	if (p_dec_info->initial_info_obtained) {
+		inst->conf_win.left = initial_info->pic_crop_rect.left;
+		inst->conf_win.top = initial_info->pic_crop_rect.top;
+		inst->conf_win.width = initial_info->pic_width -
+			initial_info->pic_crop_rect.left - initial_info->pic_crop_rect.right;
+		inst->conf_win.height = initial_info->pic_height -
+			initial_info->pic_crop_rect.top - initial_info->pic_crop_rect.bottom;
+
+		wave5_update_pix_fmt(&inst->src_fmt, initial_info->pic_width,
+				     initial_info->pic_height);
+		wave5_update_pix_fmt(&inst->dst_fmt, initial_info->pic_width,
+				     initial_info->pic_height);
+	}
+
+	v4l2_event_queue_fh(fh, &vpu_event_src_ch);
+
+	return 0;
+}
+
+static void wave5_vpu_dec_finish_decode(struct vpu_instance *inst)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct dec_output_info dec_info;
+	int ret;
+	struct vb2_v4l2_buffer *dec_buf = NULL;
+	struct vb2_v4l2_buffer *disp_buf = NULL;
+	struct vb2_queue *dst_vq = v4l2_m2m_get_dst_vq(m2m_ctx);
+	struct queue_status_info q_status;
+
+	dev_dbg(inst->dev->dev, "%s: Fetch output info from firmware.", __func__);
+
+	ret = wave5_vpu_dec_get_output_info(inst, &dec_info);
+	if (ret) {
+		dev_warn(inst->dev->dev, "%s: could not get output info.", __func__);
+		v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+		return;
+	}
+
+	dev_dbg(inst->dev->dev, "%s: rd_ptr %pad wr_ptr %pad", __func__, &dec_info.rd_ptr,
+		&dec_info.wr_ptr);
+	wave5_handle_src_buffer(inst, dec_info.rd_ptr);
+
+	dev_dbg(inst->dev->dev, "%s: dec_info dec_idx %i disp_idx %i", __func__,
+		dec_info.index_frame_decoded, dec_info.index_frame_display);
+
+	if (!vb2_is_streaming(dst_vq)) {
+		dev_dbg(inst->dev->dev, "%s: capture is not streaming..", __func__);
+		v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+		return;
+	}
+
+	/* Remove decoded buffer from the ready queue now that it has been
+	 * decoded.
+	 */
+	if (dec_info.index_frame_decoded >= 0) {
+		struct vb2_buffer *vb = vb2_get_buffer(dst_vq,
+						       dec_info.index_frame_decoded);
+		if (vb) {
+			dec_buf = to_vb2_v4l2_buffer(vb);
+			dec_buf->vb2_buf.timestamp = inst->timestamp;
+		} else {
+			dev_warn(inst->dev->dev, "%s: invalid decoded frame index %i",
+				 __func__, dec_info.index_frame_decoded);
+		}
+	}
+
+	if (dec_info.index_frame_display >= 0) {
+		disp_buf = v4l2_m2m_dst_buf_remove_by_idx(m2m_ctx, dec_info.index_frame_display);
+		if (!disp_buf)
+			dev_warn(inst->dev->dev, "%s: invalid display frame index %i",
+				 __func__, dec_info.index_frame_display);
+	}
+
+	/* If there is anything to display, do that now */
+	if (disp_buf) {
+		struct vpu_dst_buffer *dst_vpu_buf = wave5_to_vpu_dst_buf(disp_buf);
+
+		if (inst->dst_fmt.num_planes == 1) {
+			vb2_set_plane_payload(&disp_buf->vb2_buf, 0,
+					      inst->dst_fmt.plane_fmt[0].sizeimage);
+		} else if (inst->dst_fmt.num_planes == 2) {
+			vb2_set_plane_payload(&disp_buf->vb2_buf, 0,
+					      inst->dst_fmt.plane_fmt[0].sizeimage);
+			vb2_set_plane_payload(&disp_buf->vb2_buf, 1,
+					      inst->dst_fmt.plane_fmt[1].sizeimage);
+		} else if (inst->dst_fmt.num_planes == 3) {
+			vb2_set_plane_payload(&disp_buf->vb2_buf, 0,
+					      inst->dst_fmt.plane_fmt[0].sizeimage);
+			vb2_set_plane_payload(&disp_buf->vb2_buf, 1,
+					      inst->dst_fmt.plane_fmt[1].sizeimage);
+			vb2_set_plane_payload(&disp_buf->vb2_buf, 2,
+					      inst->dst_fmt.plane_fmt[2].sizeimage);
+		}
+
+		/* TODO implement interlace support */
+		disp_buf->field = V4L2_FIELD_NONE;
+		dst_vpu_buf->display = true;
+		v4l2_m2m_buf_done(disp_buf, VB2_BUF_STATE_DONE);
+
+		dev_dbg(inst->dev->dev, "%s: frame_cycle %8u (payload %lu)\n",
+			__func__, dec_info.frame_cycle,
+			vb2_get_plane_payload(&disp_buf->vb2_buf, 0));
+	}
+
+	if ((dec_info.index_frame_display == DISPLAY_IDX_FLAG_SEQ_END ||
+	     dec_info.sequence_changed)) {
+		unsigned long flags;
+
+		spin_lock_irqsave(&inst->state_spinlock, flags);
+		if (!v4l2_m2m_has_stopped(m2m_ctx)) {
+			switch_state(inst, VPU_INST_STATE_STOP);
+
+			if (dec_info.sequence_changed)
+				handle_dynamic_resolution_change(inst);
+			else
+				send_eos_event(inst);
+
+			flag_last_buffer_done(inst);
+		}
+		spin_unlock_irqrestore(&inst->state_spinlock, flags);
+	}
+
+	/*
+	 * During a resolution change and while draining, the firmware may flush
+	 * the reorder queue regardless of having a matching decoding operation
+	 * pending. Only terminate the job if there are no more IRQ coming.
+	 */
+	wave5_vpu_dec_give_command(inst, DEC_GET_QUEUE_STATUS, &q_status);
+	if (q_status.report_queue_count == 0 &&
+	    (q_status.instance_queue_count == 0 || dec_info.sequence_changed)) {
+		dev_dbg(inst->dev->dev, "%s: finishing job.\n", __func__);
+		v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+	}
+}
+
+static int wave5_vpu_dec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
+{
+	strscpy(cap->driver, VPU_DEC_DRV_NAME, sizeof(cap->driver));
+	strscpy(cap->card, VPU_DEC_DRV_NAME, sizeof(cap->card));
+
+	return 0;
+}
+
+static int wave5_vpu_dec_enum_framesizes(struct file *f, void *fh, struct v4l2_frmsizeenum *fsize)
+{
+	const struct vpu_format *vpu_fmt;
+
+	if (fsize->index)
+		return -EINVAL;
+
+	vpu_fmt = wave5_find_vpu_fmt(fsize->pixel_format, dec_fmt_list[VPU_FMT_TYPE_CODEC]);
+	if (!vpu_fmt) {
+		vpu_fmt = wave5_find_vpu_fmt(fsize->pixel_format, dec_fmt_list[VPU_FMT_TYPE_RAW]);
+		if (!vpu_fmt)
+			return -EINVAL;
+	}
+
+	fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
+	fsize->stepwise.min_width = vpu_fmt->min_width;
+	fsize->stepwise.max_width = vpu_fmt->max_width;
+	fsize->stepwise.step_width = 1;
+	fsize->stepwise.min_height = vpu_fmt->min_height;
+	fsize->stepwise.max_height = vpu_fmt->max_height;
+	fsize->stepwise.step_height = 1;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_enum_fmt_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+	const struct vpu_format *vpu_fmt;
+
+	vpu_fmt = wave5_find_vpu_fmt_by_idx(f->index, dec_fmt_list[VPU_FMT_TYPE_RAW]);
+	if (!vpu_fmt)
+		return -EINVAL;
+
+	f->pixelformat = vpu_fmt->v4l2_pix_fmt;
+	f->flags = 0;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_try_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	struct dec_info *p_dec_info = &inst->codec_info->dec_info;
+	const struct vpu_format *vpu_fmt;
+	int width, height;
+
+	dev_dbg(inst->dev->dev,
+		"%s: fourcc: %u width: %u height: %u nm planes: %u colorspace: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.colorspace, f->fmt.pix_mp.field);
+
+	vpu_fmt = wave5_find_vpu_fmt(f->fmt.pix_mp.pixelformat, dec_fmt_list[VPU_FMT_TYPE_RAW]);
+	if (!vpu_fmt) {
+		width = inst->dst_fmt.width;
+		height = inst->dst_fmt.height;
+		f->fmt.pix_mp.pixelformat = inst->dst_fmt.pixelformat;
+		f->fmt.pix_mp.num_planes = inst->dst_fmt.num_planes;
+	} else {
+		const struct v4l2_format_info *info = v4l2_format_info(vpu_fmt->v4l2_pix_fmt);
+
+		width = clamp(f->fmt.pix_mp.width, vpu_fmt->min_width, vpu_fmt->max_width);
+		height = clamp(f->fmt.pix_mp.height, vpu_fmt->min_height, vpu_fmt->max_height);
+		f->fmt.pix_mp.pixelformat = vpu_fmt->v4l2_pix_fmt;
+		f->fmt.pix_mp.num_planes = info->mem_planes;
+	}
+
+	if (p_dec_info->initial_info_obtained) {
+		width = inst->dst_fmt.width;
+		height = inst->dst_fmt.height;
+	}
+
+	wave5_update_pix_fmt(&f->fmt.pix_mp, width, height);
+	f->fmt.pix_mp.flags = 0;
+	f->fmt.pix_mp.field = V4L2_FIELD_NONE;
+	f->fmt.pix_mp.colorspace = inst->colorspace;
+	f->fmt.pix_mp.ycbcr_enc = inst->ycbcr_enc;
+	f->fmt.pix_mp.quantization = inst->quantization;
+	f->fmt.pix_mp.xfer_func = inst->xfer_func;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_s_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i, ret;
+
+	dev_dbg(inst->dev->dev,
+		"%s: fourcc: %u width: %u height: %u num_planes: %u colorspace: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.colorspace, f->fmt.pix_mp.field);
+
+	ret = wave5_vpu_dec_try_fmt_cap(file, fh, f);
+	if (ret)
+		return ret;
+
+	inst->dst_fmt.width = f->fmt.pix_mp.width;
+	inst->dst_fmt.height = f->fmt.pix_mp.height;
+	inst->dst_fmt.pixelformat = f->fmt.pix_mp.pixelformat;
+	inst->dst_fmt.field = f->fmt.pix_mp.field;
+	inst->dst_fmt.flags = f->fmt.pix_mp.flags;
+	inst->dst_fmt.num_planes = f->fmt.pix_mp.num_planes;
+	for (i = 0; i < inst->dst_fmt.num_planes; i++) {
+		inst->dst_fmt.plane_fmt[i].bytesperline = f->fmt.pix_mp.plane_fmt[i].bytesperline;
+		inst->dst_fmt.plane_fmt[i].sizeimage = f->fmt.pix_mp.plane_fmt[i].sizeimage;
+	}
+
+	if (inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV12 ||
+	    inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV12M) {
+		inst->cbcr_interleave = true;
+		inst->nv21 = false;
+		inst->output_format = FORMAT_420;
+	} else if (inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV21 ||
+		   inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV21M) {
+		inst->cbcr_interleave = true;
+		inst->nv21 = true;
+		inst->output_format = FORMAT_420;
+	} else if (inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV16 ||
+		   inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV16M) {
+		inst->cbcr_interleave = true;
+		inst->nv21 = false;
+		inst->output_format = FORMAT_422;
+	} else if (inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV61 ||
+		   inst->dst_fmt.pixelformat == V4L2_PIX_FMT_NV61M) {
+		inst->cbcr_interleave = true;
+		inst->nv21 = true;
+		inst->output_format = FORMAT_422;
+	} else if (inst->dst_fmt.pixelformat == V4L2_PIX_FMT_YUV422P ||
+		   inst->dst_fmt.pixelformat == V4L2_PIX_FMT_YUV422M) {
+		inst->cbcr_interleave = false;
+		inst->nv21 = false;
+		inst->output_format = FORMAT_422;
+	} else {
+		inst->cbcr_interleave = false;
+		inst->nv21 = false;
+		inst->output_format = FORMAT_420;
+	}
+
+	return 0;
+}
+
+static int wave5_vpu_dec_g_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i;
+
+	f->fmt.pix_mp.width = inst->dst_fmt.width;
+	f->fmt.pix_mp.height = inst->dst_fmt.height;
+	f->fmt.pix_mp.pixelformat = inst->dst_fmt.pixelformat;
+	f->fmt.pix_mp.field = inst->dst_fmt.field;
+	f->fmt.pix_mp.flags = inst->dst_fmt.flags;
+	f->fmt.pix_mp.num_planes = inst->dst_fmt.num_planes;
+	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
+		f->fmt.pix_mp.plane_fmt[i].bytesperline = inst->dst_fmt.plane_fmt[i].bytesperline;
+		f->fmt.pix_mp.plane_fmt[i].sizeimage = inst->dst_fmt.plane_fmt[i].sizeimage;
+	}
+
+	f->fmt.pix_mp.colorspace = inst->colorspace;
+	f->fmt.pix_mp.ycbcr_enc = inst->ycbcr_enc;
+	f->fmt.pix_mp.quantization = inst->quantization;
+	f->fmt.pix_mp.xfer_func = inst->xfer_func;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_enum_fmt_out(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	const struct vpu_format *vpu_fmt;
+
+	dev_dbg(inst->dev->dev, "%s: index: %u\n", __func__, f->index);
+
+	vpu_fmt = wave5_find_vpu_fmt_by_idx(f->index, dec_fmt_list[VPU_FMT_TYPE_CODEC]);
+	if (!vpu_fmt)
+		return -EINVAL;
+
+	f->pixelformat = vpu_fmt->v4l2_pix_fmt;
+	f->flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_try_fmt_out(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	const struct vpu_format *vpu_fmt;
+
+	dev_dbg(inst->dev->dev,
+		"%s: fourcc: %u width: %u height: %u num_planes: %u colorspace: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.colorspace, f->fmt.pix_mp.field);
+
+	vpu_fmt = wave5_find_vpu_fmt(f->fmt.pix_mp.pixelformat, dec_fmt_list[VPU_FMT_TYPE_CODEC]);
+	if (!vpu_fmt) {
+		f->fmt.pix_mp.pixelformat = inst->src_fmt.pixelformat;
+		f->fmt.pix_mp.num_planes = inst->src_fmt.num_planes;
+		wave5_update_pix_fmt(&f->fmt.pix_mp, inst->src_fmt.width, inst->src_fmt.height);
+	} else {
+		int width = clamp(f->fmt.pix_mp.width, vpu_fmt->min_width, vpu_fmt->max_width);
+		int height = clamp(f->fmt.pix_mp.height, vpu_fmt->min_height, vpu_fmt->max_height);
+
+		f->fmt.pix_mp.pixelformat = vpu_fmt->v4l2_pix_fmt;
+		f->fmt.pix_mp.num_planes = 1;
+		wave5_update_pix_fmt(&f->fmt.pix_mp, width, height);
+	}
+
+	f->fmt.pix_mp.flags = 0;
+	f->fmt.pix_mp.field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_s_fmt_out(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i, ret;
+
+	dev_dbg(inst->dev->dev,
+		"%s: fourcc: %u width: %u height: %u num_planes: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.field);
+
+	ret = wave5_vpu_dec_try_fmt_out(file, fh, f);
+	if (ret)
+		return ret;
+
+	inst->std = wave5_to_vpu_std(f->fmt.pix_mp.pixelformat, inst->type);
+	if (inst->std == STD_UNKNOWN) {
+		dev_warn(inst->dev->dev, "unsupported pixelformat: %.4s\n",
+			 (char *)&f->fmt.pix_mp.pixelformat);
+		return -EINVAL;
+	}
+
+	inst->src_fmt.width = f->fmt.pix_mp.width;
+	inst->src_fmt.height = f->fmt.pix_mp.height;
+	inst->src_fmt.pixelformat = f->fmt.pix_mp.pixelformat;
+	inst->src_fmt.field = f->fmt.pix_mp.field;
+	inst->src_fmt.flags = f->fmt.pix_mp.flags;
+	inst->src_fmt.num_planes = f->fmt.pix_mp.num_planes;
+	for (i = 0; i < inst->src_fmt.num_planes; i++) {
+		inst->src_fmt.plane_fmt[i].bytesperline = f->fmt.pix_mp.plane_fmt[i].bytesperline;
+		inst->src_fmt.plane_fmt[i].sizeimage = f->fmt.pix_mp.plane_fmt[i].sizeimage;
+	}
+
+	inst->colorspace = f->fmt.pix_mp.colorspace;
+	inst->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+	inst->quantization = f->fmt.pix_mp.quantization;
+	inst->xfer_func = f->fmt.pix_mp.xfer_func;
+
+	wave5_update_pix_fmt(&inst->dst_fmt, f->fmt.pix_mp.width, f->fmt.pix_mp.height);
+
+	return 0;
+}
+
+static int wave5_vpu_dec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+
+	dev_dbg(inst->dev->dev, "%s: type: %u | target: %u\n", __func__, s->type, s->target);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	switch (s->target) {
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+	case V4L2_SEL_TGT_COMPOSE_PADDED:
+		s->r.left = 0;
+		s->r.top = 0;
+		s->r.width = inst->dst_fmt.width;
+		s->r.height = inst->dst_fmt.height;
+		break;
+	case V4L2_SEL_TGT_COMPOSE:
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+		s->r.left = 0;
+		s->r.top = 0;
+		if (inst->state > VPU_INST_STATE_OPEN) {
+			s->r = inst->conf_win;
+		} else {
+			s->r.width = inst->src_fmt.width;
+			s->r.height = inst->src_fmt.height;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int wave5_vpu_dec_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	if (s->target != V4L2_SEL_TGT_COMPOSE)
+		return -EINVAL;
+
+	dev_dbg(inst->dev->dev, "V4L2_SEL_TGT_COMPOSE w: %u h: %u\n",
+		s->r.width, s->r.height);
+
+	s->r.left = 0;
+	s->r.top = 0;
+	s->r.width = inst->dst_fmt.width;
+	s->r.height = inst->dst_fmt.height;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_stop(struct vpu_instance *inst)
+{
+	int ret = 0;
+	unsigned long flags;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	spin_lock_irqsave(&inst->state_spinlock, flags);
+
+	if (m2m_ctx->is_draining) {
+		ret = -EBUSY;
+		goto unlock_and_return;
+	}
+
+	if (inst->state != VPU_INST_STATE_NONE) {
+		/*
+		 * Temporarily release the state_spinlock so that subsequent
+		 * calls do not block on a mutex while inside this spinlock.
+		 */
+		spin_unlock_irqrestore(&inst->state_spinlock, flags);
+		ret = wave5_vpu_dec_set_eos_on_firmware(inst);
+		if (ret)
+			return ret;
+
+		spin_lock_irqsave(&inst->state_spinlock, flags);
+		/*
+		 * TODO eliminate this check by using a separate check for
+		 * draining triggered by a resolution change.
+		 */
+		if (m2m_ctx->is_draining) {
+			ret = -EBUSY;
+			goto unlock_and_return;
+		}
+	}
+
+	/*
+	 * Used to remember the EOS state after the streamoff/on transition on
+	 * the capture queue.
+	 */
+	inst->eos = true;
+
+	if (m2m_ctx->has_stopped)
+		goto unlock_and_return;
+
+	m2m_ctx->last_src_buf = v4l2_m2m_last_src_buf(m2m_ctx);
+	m2m_ctx->is_draining = true;
+
+	/*
+	 * Deferred to device run in case it wasn't in the ring buffer
+	 * yet. In other case, we have to send the EOS signal to the
+	 * firmware so that any pending PIC_RUN ends without new
+	 * bitstream buffer.
+	 */
+	if (m2m_ctx->last_src_buf)
+		goto unlock_and_return;
+
+	if (inst->state == VPU_INST_STATE_NONE) {
+		send_eos_event(inst);
+		flag_last_buffer_done(inst);
+	}
+
+unlock_and_return:
+	spin_unlock_irqrestore(&inst->state_spinlock, flags);
+	return ret;
+}
+
+static int wave5_vpu_dec_start(struct vpu_instance *inst)
+{
+	int ret = 0;
+	unsigned long flags;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct vb2_queue *dst_vq = v4l2_m2m_get_dst_vq(m2m_ctx);
+
+	spin_lock_irqsave(&inst->state_spinlock, flags);
+
+	if (m2m_ctx->is_draining) {
+		ret = -EBUSY;
+		goto unlock_and_return;
+	}
+
+	if (m2m_ctx->has_stopped)
+		m2m_ctx->has_stopped = false;
+
+	vb2_clear_last_buffer_dequeued(dst_vq);
+	inst->eos = false;
+
+unlock_and_return:
+	spin_unlock_irqrestore(&inst->state_spinlock, flags);
+	return ret;
+}
+
+static int wave5_vpu_dec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *dc)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	int ret;
+
+	dev_dbg(inst->dev->dev, "decoder command: %u\n", dc->cmd);
+
+	ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc);
+	if (ret)
+		return ret;
+
+	switch (dc->cmd) {
+	case V4L2_DEC_CMD_STOP:
+		ret = wave5_vpu_dec_stop(inst);
+		/* Just in case we don't have anything to decode anymore */
+		v4l2_m2m_try_schedule(m2m_ctx);
+		break;
+	case V4L2_DEC_CMD_START:
+		ret = wave5_vpu_dec_start(inst);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static const struct v4l2_ioctl_ops wave5_vpu_dec_ioctl_ops = {
+	.vidioc_querycap = wave5_vpu_dec_querycap,
+	.vidioc_enum_framesizes = wave5_vpu_dec_enum_framesizes,
+
+	.vidioc_enum_fmt_vid_cap	= wave5_vpu_dec_enum_fmt_cap,
+	.vidioc_s_fmt_vid_cap_mplane = wave5_vpu_dec_s_fmt_cap,
+	.vidioc_g_fmt_vid_cap_mplane = wave5_vpu_dec_g_fmt_cap,
+	.vidioc_try_fmt_vid_cap_mplane = wave5_vpu_dec_try_fmt_cap,
+
+	.vidioc_enum_fmt_vid_out	= wave5_vpu_dec_enum_fmt_out,
+	.vidioc_s_fmt_vid_out_mplane = wave5_vpu_dec_s_fmt_out,
+	.vidioc_g_fmt_vid_out_mplane = wave5_vpu_g_fmt_out,
+	.vidioc_try_fmt_vid_out_mplane = wave5_vpu_dec_try_fmt_out,
+
+	.vidioc_g_selection = wave5_vpu_dec_g_selection,
+	.vidioc_s_selection = wave5_vpu_dec_s_selection,
+
+	.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
+	/*
+	 * Firmware does not support CREATE_BUFS for CAPTURE queue. Since
+	 * there is no immediate use-case for supporting CREATE_BUFS on
+	 * just the OUTPUT queue, disable CREATE_BUFS altogether.
+	 */
+	.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
+	.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
+	.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+	.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
+	.vidioc_streamon = v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd,
+	.vidioc_decoder_cmd = wave5_vpu_dec_decoder_cmd,
+
+	.vidioc_subscribe_event = wave5_vpu_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static int wave5_vpu_dec_queue_setup(struct vb2_queue *q, unsigned int *num_buffers,
+				     unsigned int *num_planes, unsigned int sizes[],
+				     struct device *alloc_devs[])
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_pix_format_mplane inst_format =
+		(q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ? inst->src_fmt : inst->dst_fmt;
+
+	dev_dbg(inst->dev->dev, "%s: num_buffers: %u | num_planes: %u | type: %u\n", __func__,
+		*num_buffers, *num_planes, q->type);
+
+	*num_planes = inst_format.num_planes;
+
+	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+		sizes[0] = inst_format.plane_fmt[0].sizeimage;
+		dev_dbg(inst->dev->dev, "%s: size[0]: %u\n", __func__, sizes[0]);
+	} else if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+		if (*num_buffers < inst->fbc_buf_count)
+			*num_buffers = inst->fbc_buf_count;
+
+		if (*num_planes == 1) {
+			if (inst->output_format == FORMAT_422)
+				sizes[0] = inst_format.width * inst_format.height * 2;
+			else
+				sizes[0] = inst_format.width * inst_format.height * 3 / 2;
+			dev_dbg(inst->dev->dev, "%s: size[0]: %u\n", __func__, sizes[0]);
+		} else if (*num_planes == 2) {
+			sizes[0] = inst_format.width * inst_format.height;
+			if (inst->output_format == FORMAT_422)
+				sizes[1] = inst_format.width * inst_format.height;
+			else
+				sizes[1] = inst_format.width * inst_format.height / 2;
+			dev_dbg(inst->dev->dev, "%s: size[0]: %u | size[1]: %u\n",
+				__func__, sizes[0], sizes[1]);
+		} else if (*num_planes == 3) {
+			sizes[0] = inst_format.width * inst_format.height;
+			if (inst->output_format == FORMAT_422) {
+				sizes[1] = inst_format.width * inst_format.height / 2;
+				sizes[2] = inst_format.width * inst_format.height / 2;
+			} else {
+				sizes[1] = inst_format.width * inst_format.height / 4;
+				sizes[2] = inst_format.width * inst_format.height / 4;
+			}
+			dev_dbg(inst->dev->dev, "%s: size[0]: %u | size[1]: %u | size[2]: %u\n",
+				__func__, sizes[0], sizes[1], sizes[2]);
+		}
+	}
+
+	return 0;
+}
+
+static int wave5_prepare_fb(struct vpu_instance *inst)
+{
+	int linear_num;
+	int non_linear_num;
+	int fb_stride = 0, fb_height = 0;
+	int luma_size, chroma_size;
+	int ret, i;
+	struct v4l2_m2m_buffer *buf, *n;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	linear_num = v4l2_m2m_num_dst_bufs_ready(m2m_ctx);
+	non_linear_num = inst->fbc_buf_count;
+
+	for (i = 0; i < non_linear_num; i++) {
+		struct frame_buffer *frame = &inst->frame_buf[i];
+		struct vpu_buf *vframe = &inst->frame_vbuf[i];
+
+		fb_stride = inst->dst_fmt.width;
+		fb_height = ALIGN(inst->dst_fmt.height, 32);
+		luma_size = fb_stride * fb_height;
+
+		chroma_size = ALIGN(fb_stride / 2, 16) * fb_height;
+
+		if (vframe->size == (luma_size + chroma_size))
+			continue;
+
+		if (vframe->size)
+			wave5_vpu_dec_reset_framebuffer(inst, i);
+
+		vframe->size = luma_size + chroma_size;
+		ret = wave5_vdi_allocate_dma_memory(inst->dev, vframe);
+		if (ret) {
+			dev_dbg(inst->dev->dev,
+				"%s: Allocating FBC buf of size %zu, fail: %d\n",
+				__func__, vframe->size, ret);
+			return ret;
+		}
+
+		frame->buf_y = vframe->daddr;
+		frame->buf_cb = vframe->daddr + luma_size;
+		frame->buf_cr = (dma_addr_t)-1;
+		frame->size = vframe->size;
+		frame->width = inst->src_fmt.width;
+		frame->stride = fb_stride;
+		frame->map_type = COMPRESSED_FRAME_MAP;
+		frame->update_fb_info = true;
+	}
+	/* In case the count has reduced, clean up leftover framebuffer memory */
+	for (i = non_linear_num; i < MAX_REG_FRAME; i++) {
+		ret = wave5_vpu_dec_reset_framebuffer(inst, i);
+		if (ret)
+			break;
+	}
+
+	for (i = 0; i < linear_num; i++) {
+		struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+		struct vb2_queue *dst_vq = v4l2_m2m_get_dst_vq(m2m_ctx);
+		struct vb2_buffer *vb = vb2_get_buffer(dst_vq, i);
+		struct frame_buffer *frame = &inst->frame_buf[non_linear_num + i];
+		dma_addr_t buf_addr_y = 0, buf_addr_cb = 0, buf_addr_cr = 0;
+		u32 buf_size = 0;
+		u32 fb_stride = inst->dst_fmt.width;
+		u32 luma_size = fb_stride * inst->dst_fmt.height;
+		u32 chroma_size;
+
+		if (inst->output_format == FORMAT_422)
+			chroma_size = fb_stride * inst->dst_fmt.height / 2;
+		else
+			chroma_size = fb_stride * inst->dst_fmt.height / 4;
+
+		if (inst->dst_fmt.num_planes == 1) {
+			buf_size = vb2_plane_size(vb, 0);
+			buf_addr_y = vb2_dma_contig_plane_dma_addr(vb, 0);
+			buf_addr_cb = buf_addr_y + luma_size;
+			buf_addr_cr = buf_addr_cb + chroma_size;
+		} else if (inst->dst_fmt.num_planes == 2) {
+			buf_size = vb2_plane_size(vb, 0) +
+				vb2_plane_size(vb, 1);
+			buf_addr_y = vb2_dma_contig_plane_dma_addr(vb, 0);
+			buf_addr_cb = vb2_dma_contig_plane_dma_addr(vb, 1);
+			buf_addr_cr = buf_addr_cb + chroma_size;
+		} else if (inst->dst_fmt.num_planes == 3) {
+			buf_size = vb2_plane_size(vb, 0) +
+				vb2_plane_size(vb, 1) +
+				vb2_plane_size(vb, 2);
+			buf_addr_y = vb2_dma_contig_plane_dma_addr(vb, 0);
+			buf_addr_cb = vb2_dma_contig_plane_dma_addr(vb, 1);
+			buf_addr_cr = vb2_dma_contig_plane_dma_addr(vb, 2);
+		}
+
+		frame->buf_y = buf_addr_y;
+		frame->buf_cb = buf_addr_cb;
+		frame->buf_cr = buf_addr_cr;
+		frame->size = buf_size;
+		frame->width = inst->src_fmt.width;
+		frame->stride = fb_stride;
+		frame->map_type = LINEAR_FRAME_MAP;
+		frame->update_fb_info = true;
+	}
+
+	ret = wave5_vpu_dec_register_frame_buffer_ex(inst, non_linear_num, linear_num,
+						     fb_stride, inst->dst_fmt.height);
+	if (ret) {
+		dev_dbg(inst->dev->dev, "%s: vpu_dec_register_frame_buffer_ex fail: %d",
+			__func__, ret);
+		return ret;
+	}
+
+	/*
+	 * Mark all frame buffers as out of display, to avoid using them before
+	 * the application have them queued.
+	 */
+	for (i = 0; i < v4l2_m2m_num_dst_bufs_ready(m2m_ctx); i++) {
+		ret = wave5_vpu_dec_set_disp_flag(inst, i);
+		if (ret) {
+			dev_dbg(inst->dev->dev,
+				"%s: Setting display flag of buf index: %u, fail: %d\n",
+				__func__, i, ret);
+		}
+	}
+
+	v4l2_m2m_for_each_dst_buf_safe(m2m_ctx, buf, n) {
+		struct vb2_v4l2_buffer *vbuf = &buf->vb;
+
+		ret = wave5_vpu_dec_clr_disp_flag(inst, vbuf->vb2_buf.index);
+		if (ret)
+			dev_dbg(inst->dev->dev,
+				"%s: Clearing display flag of buf index: %u, fail: %d\n",
+				__func__, i, ret);
+	}
+
+	return 0;
+}
+
+static int write_to_ringbuffer(struct vpu_instance *inst, void *buffer, size_t buffer_size,
+			       struct vpu_buf *ring_buffer, dma_addr_t wr_ptr)
+{
+	size_t size;
+	size_t offset = wr_ptr - ring_buffer->daddr;
+	int ret;
+
+	if (wr_ptr + buffer_size > ring_buffer->daddr + ring_buffer->size) {
+		size = ring_buffer->daddr + ring_buffer->size - wr_ptr;
+		ret = wave5_vdi_write_memory(inst->dev, ring_buffer, offset, (u8 *)buffer, size);
+		if (ret < 0)
+			return ret;
+
+		ret = wave5_vdi_write_memory(inst->dev, ring_buffer, 0, (u8 *)buffer + size,
+					     buffer_size - size);
+		if (ret < 0)
+			return ret;
+	} else {
+		ret = wave5_vdi_write_memory(inst->dev, ring_buffer, offset, (u8 *)buffer,
+					     buffer_size);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int fill_ringbuffer(struct vpu_instance *inst)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct v4l2_m2m_buffer *buf, *n;
+	int ret;
+
+	if (m2m_ctx->last_src_buf)  {
+		struct vpu_src_buffer *vpu_buf = wave5_to_vpu_src_buf(m2m_ctx->last_src_buf);
+
+		if (vpu_buf->consumed) {
+			dev_dbg(inst->dev->dev, "last src buffer already written\n");
+			return 0;
+		}
+	}
+
+	v4l2_m2m_for_each_src_buf_safe(m2m_ctx, buf, n) {
+		struct vb2_v4l2_buffer *vbuf = &buf->vb;
+		struct vpu_src_buffer *vpu_buf = wave5_to_vpu_src_buf(vbuf);
+		struct vpu_buf *ring_buffer = &inst->bitstream_vbuf;
+		size_t src_size = vb2_get_plane_payload(&vbuf->vb2_buf, 0);
+		void *src_buf = vb2_plane_vaddr(&vbuf->vb2_buf, 0);
+		dma_addr_t rd_ptr = 0;
+		dma_addr_t wr_ptr = 0;
+		size_t remain_size = 0;
+
+		if (vpu_buf->consumed) {
+			dev_dbg(inst->dev->dev, "already copied src buf (%u) to the ring buffer\n",
+				vbuf->vb2_buf.index);
+			continue;
+		}
+
+		if (!src_buf) {
+			dev_dbg(inst->dev->dev,
+				"%s: Acquiring kernel pointer to src buf (%u), fail\n",
+				__func__, vbuf->vb2_buf.index);
+			break;
+		}
+
+		ret = wave5_vpu_dec_get_bitstream_buffer(inst, &rd_ptr, &wr_ptr, &remain_size);
+		if (ret) {
+			/* Unable to acquire the mutex */
+			dev_err(inst->dev->dev, "Getting the bitstream buffer, fail: %d\n",
+				ret);
+			return ret;
+		}
+
+		dev_dbg(inst->dev->dev, "%s: rd_ptr %pad wr_ptr %pad", __func__, &rd_ptr, &wr_ptr);
+
+		if (remain_size < src_size) {
+			dev_dbg(inst->dev->dev,
+				"%s: remaining size: %zu < source size: %zu for src buf (%u)\n",
+				__func__, remain_size, src_size, vbuf->vb2_buf.index);
+			break;
+		}
+
+		ret = write_to_ringbuffer(inst, src_buf, src_size, ring_buffer, wr_ptr);
+		if (ret) {
+			dev_err(inst->dev->dev, "Write src buf (%u) to ring buffer, fail: %d\n",
+				vbuf->vb2_buf.index, ret);
+			return ret;
+		}
+
+		ret = wave5_vpu_dec_update_bitstream_buffer(inst, src_size);
+		if (ret) {
+			dev_dbg(inst->dev->dev,
+				"update_bitstream_buffer fail: %d for src buf (%u)\n",
+				ret, vbuf->vb2_buf.index);
+			break;
+		}
+
+		vpu_buf->consumed = true;
+
+		/* Don't write buffers passed the last one while draining. */
+		if (v4l2_m2m_is_last_draining_src_buf(m2m_ctx, vbuf)) {
+			dev_dbg(inst->dev->dev, "last src buffer written to the ring bufferur\n");
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static void wave5_vpu_dec_buf_queue_src(struct vb2_buffer *vb)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(vb->vb2_queue);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vpu_src_buffer *vpu_buf = wave5_to_vpu_src_buf(vbuf);
+
+	vpu_buf->consumed = false;
+	vbuf->sequence = inst->queued_src_buf_num++;
+
+	v4l2_m2m_buf_queue(m2m_ctx, vbuf);
+}
+
+static void wave5_vpu_dec_buf_queue_dst(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vpu_instance *inst = vb2_get_drv_priv(vb->vb2_queue);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	vbuf->sequence = inst->queued_dst_buf_num++;
+
+	if (inst->state == VPU_INST_STATE_PIC_RUN) {
+		struct vpu_dst_buffer *vpu_buf = wave5_to_vpu_dst_buf(vbuf);
+		int ret;
+
+		/*
+		 * The buffer is already registered just clear the display flag
+		 * to let the firmware know it can be used.
+		 */
+		vpu_buf->display = false;
+		ret = wave5_vpu_dec_clr_disp_flag(inst, vb->index);
+		if (ret) {
+			dev_dbg(inst->dev->dev,
+				"%s: Clearing the display flag of buffer index: %u, fail: %d\n",
+				__func__, vb->index, ret);
+		}
+	}
+
+	if (vb2_is_streaming(vb->vb2_queue) && v4l2_m2m_dst_buf_is_last(m2m_ctx)) {
+		unsigned int i;
+
+		for (i = 0; i < vb->num_planes; i++)
+			vb2_set_plane_payload(vb, i, 0);
+
+		vbuf->field = V4L2_FIELD_NONE;
+
+		send_eos_event(inst);
+		v4l2_m2m_last_buffer_done(m2m_ctx, vbuf);
+	} else {
+		v4l2_m2m_buf_queue(m2m_ctx, vbuf);
+	}
+}
+
+static void wave5_vpu_dec_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vpu_instance *inst = vb2_get_drv_priv(vb->vb2_queue);
+
+	dev_dbg(inst->dev->dev, "%s: type: %4u index: %4u size: ([0]=%4lu, [1]=%4lu, [2]=%4lu)\n",
+		__func__, vb->type, vb->index, vb2_plane_size(&vbuf->vb2_buf, 0),
+		vb2_plane_size(&vbuf->vb2_buf, 1), vb2_plane_size(&vbuf->vb2_buf, 2));
+
+	if (vb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		wave5_vpu_dec_buf_queue_src(vb);
+	else if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+		wave5_vpu_dec_buf_queue_dst(vb);
+}
+
+static int wave5_vpu_dec_allocate_ring_buffer(struct vpu_instance *inst)
+{
+	int ret;
+	struct vpu_buf *ring_buffer = &inst->bitstream_vbuf;
+
+	ring_buffer->size = ALIGN(inst->src_fmt.plane_fmt[0].sizeimage, 1024) * 4;
+	ret = wave5_vdi_allocate_dma_memory(inst->dev, ring_buffer);
+	if (ret) {
+		dev_dbg(inst->dev->dev, "%s: allocate ring buffer of size %zu fail: %d\n",
+			__func__, ring_buffer->size, ret);
+		return ret;
+	}
+
+	inst->last_rd_ptr = ring_buffer->daddr;
+
+	return 0;
+}
+
+static int wave5_vpu_dec_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	int ret = 0;
+
+	dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, q->type);
+
+	v4l2_m2m_update_start_streaming_state(m2m_ctx, q);
+
+	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE && inst->state == VPU_INST_STATE_NONE) {
+		struct dec_open_param open_param;
+
+		memset(&open_param, 0, sizeof(struct dec_open_param));
+
+		ret = wave5_vpu_dec_allocate_ring_buffer(inst);
+		if (ret)
+			goto return_buffers;
+
+		open_param.bitstream_buffer = inst->bitstream_vbuf.daddr;
+		open_param.bitstream_buffer_size = inst->bitstream_vbuf.size;
+
+		ret = wave5_vpu_dec_open(inst, &open_param);
+		if (ret) {
+			dev_dbg(inst->dev->dev, "%s: decoder opening, fail: %d\n",
+				__func__, ret);
+			goto free_bitstream_vbuf;
+		}
+
+		ret = switch_state(inst, VPU_INST_STATE_OPEN);
+		if (ret)
+			goto free_bitstream_vbuf;
+	} else if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+		struct dec_initial_info *initial_info =
+			&inst->codec_info->dec_info.initial_info;
+
+		if (inst->state == VPU_INST_STATE_STOP)
+			ret = switch_state(inst, VPU_INST_STATE_INIT_SEQ);
+		if (ret)
+			goto return_buffers;
+
+		if (inst->state == VPU_INST_STATE_INIT_SEQ) {
+			if (initial_info->luma_bitdepth != 8) {
+				dev_info(inst->dev->dev, "%s: no support for %d bit depth",
+					 __func__, initial_info->luma_bitdepth);
+				ret = -EINVAL;
+				goto return_buffers;
+			}
+		}
+	}
+
+	return ret;
+
+free_bitstream_vbuf:
+	wave5_vdi_free_dma_memory(inst->dev, &inst->bitstream_vbuf);
+return_buffers:
+	wave5_return_bufs(q, VB2_BUF_STATE_QUEUED);
+	return ret;
+}
+
+static int streamoff_output(struct vb2_queue *q)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct vb2_v4l2_buffer *buf;
+	int ret;
+	dma_addr_t new_rd_ptr;
+
+	while ((buf = v4l2_m2m_src_buf_remove(m2m_ctx))) {
+		dev_dbg(inst->dev->dev, "%s: (Multiplanar) buf type %4u | index %4u\n",
+			__func__, buf->vb2_buf.type, buf->vb2_buf.index);
+		v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
+	}
+
+	ret = wave5_vpu_flush_instance(inst);
+	if (ret)
+		return ret;
+
+	/* Reset the ring buffer information */
+	new_rd_ptr = wave5_vpu_dec_get_rd_ptr(inst);
+	inst->last_rd_ptr = new_rd_ptr;
+	inst->codec_info->dec_info.stream_rd_ptr = new_rd_ptr;
+	inst->codec_info->dec_info.stream_wr_ptr = new_rd_ptr;
+
+	if (v4l2_m2m_has_stopped(m2m_ctx))
+		send_eos_event(inst);
+
+	/* streamoff on output cancels any draining operation */
+	inst->eos = false;
+
+	return 0;
+}
+
+static int streamoff_capture(struct vb2_queue *q)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct vb2_v4l2_buffer *buf;
+	unsigned int i;
+	int ret = 0;
+
+	for (i = 0; i < v4l2_m2m_num_dst_bufs_ready(m2m_ctx); i++) {
+		ret = wave5_vpu_dec_set_disp_flag(inst, i);
+		if (ret)
+			dev_dbg(inst->dev->dev,
+				"%s: Setting display flag of buf index: %u, fail: %d\n",
+				__func__, i, ret);
+	}
+
+	while ((buf = v4l2_m2m_dst_buf_remove(m2m_ctx))) {
+		u32 plane;
+
+		dev_dbg(inst->dev->dev, "%s: buf type %4u | index %4u\n",
+			__func__, buf->vb2_buf.type, buf->vb2_buf.index);
+
+		for (plane = 0; plane < inst->dst_fmt.num_planes; plane++)
+			vb2_set_plane_payload(&buf->vb2_buf, plane, 0);
+
+		v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
+	}
+
+	if (inst->needs_reallocation) {
+		wave5_vpu_dec_give_command(inst, DEC_RESET_FRAMEBUF_INFO, NULL);
+		inst->needs_reallocation = false;
+	}
+
+	if (v4l2_m2m_has_stopped(m2m_ctx)) {
+		ret = switch_state(inst, VPU_INST_STATE_INIT_SEQ);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void wave5_vpu_dec_stop_streaming(struct vb2_queue *q)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	bool check_cmd = TRUE;
+
+	dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, q->type);
+
+	while (check_cmd) {
+		struct queue_status_info q_status;
+		struct dec_output_info dec_output_info;
+
+		wave5_vpu_dec_give_command(inst, DEC_GET_QUEUE_STATUS, &q_status);
+
+		if (q_status.report_queue_count == 0)
+			break;
+
+		if (wave5_vpu_wait_interrupt(inst, VPU_DEC_TIMEOUT) < 0)
+			break;
+
+		if (wave5_vpu_dec_get_output_info(inst, &dec_output_info))
+			dev_dbg(inst->dev->dev, "Getting decoding results from fw, fail\n");
+	}
+
+	v4l2_m2m_update_stop_streaming_state(m2m_ctx, q);
+
+	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		streamoff_output(q);
+	else
+		streamoff_capture(q);
+}
+
+static const struct vb2_ops wave5_vpu_dec_vb2_ops = {
+	.queue_setup = wave5_vpu_dec_queue_setup,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+	.buf_queue = wave5_vpu_dec_buf_queue,
+	.start_streaming = wave5_vpu_dec_start_streaming,
+	.stop_streaming = wave5_vpu_dec_stop_streaming,
+};
+
+static void wave5_set_default_format(struct v4l2_pix_format_mplane *src_fmt,
+				     struct v4l2_pix_format_mplane *dst_fmt)
+{
+	unsigned int dst_pix_fmt = dec_fmt_list[VPU_FMT_TYPE_RAW][0].v4l2_pix_fmt;
+	const struct v4l2_format_info *dst_fmt_info = v4l2_format_info(dst_pix_fmt);
+
+	src_fmt->pixelformat = dec_fmt_list[VPU_FMT_TYPE_CODEC][0].v4l2_pix_fmt;
+	src_fmt->field = V4L2_FIELD_NONE;
+	src_fmt->flags = 0;
+	src_fmt->num_planes = 1;
+	wave5_update_pix_fmt(src_fmt, 720, 480);
+
+	dst_fmt->pixelformat = dst_pix_fmt;
+	dst_fmt->field = V4L2_FIELD_NONE;
+	dst_fmt->flags = 0;
+	dst_fmt->num_planes = dst_fmt_info->mem_planes;
+	wave5_update_pix_fmt(dst_fmt, 736, 480);
+}
+
+static int wave5_vpu_dec_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
+{
+	return wave5_vpu_queue_init(priv, src_vq, dst_vq, &wave5_vpu_dec_vb2_ops);
+}
+
+static const struct vpu_instance_ops wave5_vpu_dec_inst_ops = {
+	.finish_process = wave5_vpu_dec_finish_decode,
+};
+
+static int initialize_sequence(struct vpu_instance *inst)
+{
+	struct dec_initial_info initial_info;
+	int ret = 0;
+
+	memset(&initial_info, 0, sizeof(struct dec_initial_info));
+
+	ret = wave5_vpu_dec_issue_seq_init(inst);
+	if (ret) {
+		dev_dbg(inst->dev->dev, "%s: wave5_vpu_dec_issue_seq_init, fail: %d\n",
+			__func__, ret);
+		return ret;
+	}
+
+	if (wave5_vpu_wait_interrupt(inst, VPU_DEC_TIMEOUT) < 0)
+		dev_dbg(inst->dev->dev, "%s: failed to call vpu_wait_interrupt()\n", __func__);
+
+	ret = wave5_vpu_dec_complete_seq_init(inst, &initial_info);
+	if (ret) {
+		dev_dbg(inst->dev->dev, "%s: vpu_dec_complete_seq_init, fail: %d, reason: %u\n",
+			__func__, ret, initial_info.seq_init_err_reason);
+		wave5_handle_src_buffer(inst, initial_info.rd_ptr);
+		return ret;
+	}
+
+	handle_dynamic_resolution_change(inst);
+
+	return 0;
+}
+
+static bool wave5_is_draining_or_eos(struct vpu_instance *inst)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	lockdep_assert_held(&inst->state_spinlock);
+	return m2m_ctx->is_draining || inst->eos;
+}
+
+static void wave5_vpu_dec_device_run(void *priv)
+{
+	struct vpu_instance *inst = priv;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct queue_status_info q_status;
+	u32 fail_res = 0;
+	int ret = 0;
+
+	dev_dbg(inst->dev->dev, "%s: Fill the ring buffer with new bitstream data", __func__);
+
+	ret = fill_ringbuffer(inst);
+	if (ret) {
+		dev_warn(inst->dev->dev, "Filling ring buffer failed\n");
+		goto finish_job_and_return;
+	}
+
+	switch (inst->state) {
+	case VPU_INST_STATE_OPEN:
+		ret = initialize_sequence(inst);
+		if (ret) {
+			unsigned long flags;
+
+			spin_lock_irqsave(&inst->state_spinlock, flags);
+			if (wave5_is_draining_or_eos(inst) &&
+			    wave5_last_src_buffer_consumed(m2m_ctx)) {
+				struct vb2_queue *dst_vq = v4l2_m2m_get_dst_vq(m2m_ctx);
+
+				switch_state(inst, VPU_INST_STATE_STOP);
+
+				if (vb2_is_streaming(dst_vq))
+					send_eos_event(inst);
+				else
+					handle_dynamic_resolution_change(inst);
+
+				flag_last_buffer_done(inst);
+			}
+			spin_unlock_irqrestore(&inst->state_spinlock, flags);
+		} else {
+			switch_state(inst, VPU_INST_STATE_INIT_SEQ);
+		}
+
+		break;
+
+	case VPU_INST_STATE_INIT_SEQ:
+		/*
+		 * Do this early, preparing the fb can trigger an IRQ before
+		 * we had a chance to switch, which leads to an invalid state
+		 * change.
+		 */
+		switch_state(inst, VPU_INST_STATE_PIC_RUN);
+
+		/*
+		 * During DRC, the picture decoding remains pending, so just leave the job
+		 * active until this decode operation completes.
+		 */
+		wave5_vpu_dec_give_command(inst, DEC_GET_QUEUE_STATUS, &q_status);
+
+		/*
+		 * The sequence must be analyzed first to calculate the proper
+		 * size of the auxiliary buffers.
+		 */
+		ret = wave5_prepare_fb(inst);
+		if (ret) {
+			dev_warn(inst->dev->dev, "Framebuffer preparation, fail: %d\n", ret);
+			switch_state(inst, VPU_INST_STATE_STOP);
+			break;
+		}
+
+		if (q_status.instance_queue_count) {
+			dev_dbg(inst->dev->dev, "%s: leave with active job", __func__);
+			return;
+		}
+
+		fallthrough;
+	case VPU_INST_STATE_PIC_RUN:
+		ret = start_decode(inst, &fail_res);
+		if (ret) {
+			dev_err(inst->dev->dev,
+				"Frame decoding on m2m context (%p), fail: %d (result: %d)\n",
+				m2m_ctx, ret, fail_res);
+			break;
+		}
+		/* Return so that we leave this job active */
+		dev_dbg(inst->dev->dev, "%s: leave with active job", __func__);
+		return;
+	default:
+		WARN(1, "Execution of a job in state %s illegal.\n", state_to_str(inst->state));
+		break;
+	}
+
+finish_job_and_return:
+	dev_dbg(inst->dev->dev, "%s: leave and finish job", __func__);
+	v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+}
+
+static void wave5_vpu_dec_job_abort(void *priv)
+{
+	struct vpu_instance *inst = priv;
+	int ret;
+
+	ret = switch_state(inst, VPU_INST_STATE_STOP);
+	if (ret)
+		return;
+
+	ret = wave5_vpu_dec_set_eos_on_firmware(inst);
+	if (ret)
+		dev_warn(inst->dev->dev,
+			 "Setting EOS for the bitstream, fail: %d\n", ret);
+}
+
+static int wave5_vpu_dec_job_ready(void *priv)
+{
+	struct vpu_instance *inst = priv;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&inst->state_spinlock, flags);
+
+	switch (inst->state) {
+	case VPU_INST_STATE_NONE:
+		dev_dbg(inst->dev->dev, "Decoder must be open to start queueing M2M jobs!\n");
+		break;
+	case VPU_INST_STATE_OPEN:
+		if (wave5_is_draining_or_eos(inst) || !v4l2_m2m_has_stopped(m2m_ctx) ||
+		    v4l2_m2m_num_src_bufs_ready(m2m_ctx) > 0) {
+			ret = 1;
+			break;
+		}
+
+		dev_dbg(inst->dev->dev,
+			"Decoder must be draining or >= 1 OUTPUT queue buffer must be queued!\n");
+		break;
+	case VPU_INST_STATE_INIT_SEQ:
+	case VPU_INST_STATE_PIC_RUN:
+		if (!m2m_ctx->cap_q_ctx.q.streaming) {
+			dev_dbg(inst->dev->dev, "CAPTURE queue must be streaming to queue jobs!\n");
+			break;
+		} else if (v4l2_m2m_num_dst_bufs_ready(m2m_ctx) < (inst->fbc_buf_count - 1)) {
+			dev_dbg(inst->dev->dev,
+				"No capture buffer ready to decode!\n");
+			break;
+		} else if (!wave5_is_draining_or_eos(inst) &&
+			   !v4l2_m2m_num_src_bufs_ready(m2m_ctx)) {
+			dev_dbg(inst->dev->dev,
+				"No bitstream data to decode!\n");
+			break;
+		}
+		ret = 1;
+		break;
+	case VPU_INST_STATE_STOP:
+		dev_dbg(inst->dev->dev, "Decoder is stopped, not running.\n");
+		break;
+	}
+
+	spin_unlock_irqrestore(&inst->state_spinlock, flags);
+
+	return ret;
+}
+
+static const struct v4l2_m2m_ops wave5_vpu_dec_m2m_ops = {
+	.device_run = wave5_vpu_dec_device_run,
+	.job_abort = wave5_vpu_dec_job_abort,
+	.job_ready = wave5_vpu_dec_job_ready,
+};
+
+static int wave5_vpu_open_dec(struct file *filp)
+{
+	struct video_device *vdev = video_devdata(filp);
+	struct vpu_device *dev = video_drvdata(filp);
+	struct vpu_instance *inst = NULL;
+	struct v4l2_m2m_ctx *m2m_ctx;
+	int ret = 0;
+
+	inst = kzalloc(sizeof(*inst), GFP_KERNEL);
+	if (!inst)
+		return -ENOMEM;
+
+	inst->dev = dev;
+	inst->type = VPU_INST_TYPE_DEC;
+	inst->ops = &wave5_vpu_dec_inst_ops;
+
+	spin_lock_init(&inst->state_spinlock);
+
+	inst->codec_info = kzalloc(sizeof(*inst->codec_info), GFP_KERNEL);
+	if (!inst->codec_info)
+		return -ENOMEM;
+
+	v4l2_fh_init(&inst->v4l2_fh, vdev);
+	filp->private_data = &inst->v4l2_fh;
+	v4l2_fh_add(&inst->v4l2_fh);
+
+	INIT_LIST_HEAD(&inst->list);
+	list_add_tail(&inst->list, &dev->instances);
+
+	inst->v4l2_m2m_dev = inst->dev->v4l2_m2m_dec_dev;
+	inst->v4l2_fh.m2m_ctx =
+		v4l2_m2m_ctx_init(inst->v4l2_m2m_dev, inst, wave5_vpu_dec_queue_init);
+	if (IS_ERR(inst->v4l2_fh.m2m_ctx)) {
+		ret = PTR_ERR(inst->v4l2_fh.m2m_ctx);
+		goto cleanup_inst;
+	}
+	m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	v4l2_m2m_set_src_buffered(m2m_ctx, true);
+	v4l2_m2m_set_dst_buffered(m2m_ctx, true);
+	/*
+	 * We use the M2M job queue to ensure synchronization of steps where
+	 * needed, as IOCTLs can occur at anytime and we need to run commands on
+	 * the firmware in a specified order.
+	 * In order to initialize the sequence on the firmware within an M2M
+	 * job, the M2M framework needs to be able to queue jobs before
+	 * the CAPTURE queue has been started, because we need the results of the
+	 * initialization to properly prepare the CAPTURE queue with the correct
+	 * amount of buffers.
+	 * By setting ignore_cap_streaming to true the m2m framework will call
+	 * job_ready as soon as the OUTPUT queue is streaming, instead of
+	 * waiting until both the CAPTURE and OUTPUT queues are streaming.
+	 */
+	m2m_ctx->ignore_cap_streaming = true;
+
+	v4l2_ctrl_handler_init(&inst->v4l2_ctrl_hdl, 10);
+	v4l2_ctrl_new_std(&inst->v4l2_ctrl_hdl, NULL,
+			  V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1, 32, 1, 1);
+
+	if (inst->v4l2_ctrl_hdl.error) {
+		ret = -ENODEV;
+		goto cleanup_inst;
+	}
+
+	inst->v4l2_fh.ctrl_handler = &inst->v4l2_ctrl_hdl;
+	v4l2_ctrl_handler_setup(&inst->v4l2_ctrl_hdl);
+
+	wave5_set_default_format(&inst->src_fmt, &inst->dst_fmt);
+	inst->colorspace = V4L2_COLORSPACE_REC709;
+	inst->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+	inst->quantization = V4L2_QUANTIZATION_DEFAULT;
+	inst->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+
+	init_completion(&inst->irq_done);
+
+	inst->id = ida_alloc(&inst->dev->inst_ida, GFP_KERNEL);
+	if (inst->id < 0) {
+		dev_warn(inst->dev->dev, "Allocating instance ID, fail: %d\n", inst->id);
+		ret = inst->id;
+		goto cleanup_inst;
+	}
+
+	wave5_vdi_allocate_sram(inst->dev);
+
+	return 0;
+
+cleanup_inst:
+	wave5_cleanup_instance(inst);
+	return ret;
+}
+
+static int wave5_vpu_dec_release(struct file *filp)
+{
+	return wave5_vpu_release_device(filp, wave5_vpu_dec_close, "decoder");
+}
+
+static const struct v4l2_file_operations wave5_vpu_dec_fops = {
+	.owner = THIS_MODULE,
+	.open = wave5_vpu_open_dec,
+	.release = wave5_vpu_dec_release,
+	.unlocked_ioctl = video_ioctl2,
+	.poll = v4l2_m2m_fop_poll,
+	.mmap = v4l2_m2m_fop_mmap,
+};
+
+int wave5_vpu_dec_register_device(struct vpu_device *dev)
+{
+	struct video_device *vdev_dec;
+	int ret;
+
+	vdev_dec = devm_kzalloc(dev->v4l2_dev.dev, sizeof(*vdev_dec), GFP_KERNEL);
+	if (!vdev_dec)
+		return -ENOMEM;
+
+	dev->v4l2_m2m_dec_dev = v4l2_m2m_init(&wave5_vpu_dec_m2m_ops);
+	if (IS_ERR(dev->v4l2_m2m_dec_dev)) {
+		ret = PTR_ERR(dev->v4l2_m2m_dec_dev);
+		dev_err(dev->dev, "v4l2_m2m_init, fail: %d\n", ret);
+		return -EINVAL;
+	}
+
+	dev->video_dev_dec = vdev_dec;
+
+	strscpy(vdev_dec->name, VPU_DEC_DEV_NAME, sizeof(vdev_dec->name));
+	vdev_dec->fops = &wave5_vpu_dec_fops;
+	vdev_dec->ioctl_ops = &wave5_vpu_dec_ioctl_ops;
+	vdev_dec->release = video_device_release_empty;
+	vdev_dec->v4l2_dev = &dev->v4l2_dev;
+	vdev_dec->vfl_dir = VFL_DIR_M2M;
+	vdev_dec->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
+	vdev_dec->lock = &dev->dev_lock;
+
+	ret = video_register_device(vdev_dec, VFL_TYPE_VIDEO, -1);
+	if (ret)
+		return ret;
+
+	video_set_drvdata(vdev_dec, dev);
+
+	return 0;
+}
+
+void wave5_vpu_dec_unregister_device(struct vpu_device *dev)
+{
+	video_unregister_device(dev->video_dev_dec);
+	if (dev->v4l2_m2m_dec_dev)
+		v4l2_m2m_release(dev->v4l2_m2m_dec_dev);
+}

drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c

+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Wave5 series multi-standard codec IP - encoder interface
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+
+#include "wave5-helper.h"
+
+#define VPU_ENC_DEV_NAME "C&M Wave5 VPU encoder"
+#define VPU_ENC_DRV_NAME "wave5-enc"
+
+static const struct vpu_format enc_fmt_list[FMT_TYPES][MAX_FMTS] = {
+	[VPU_FMT_TYPE_CODEC] = {
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_HEVC,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_H264,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+	},
+	[VPU_FMT_TYPE_RAW] = {
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_YUV420,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV12,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV21,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_YUV420M,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV12M,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+		{
+			.v4l2_pix_fmt = V4L2_PIX_FMT_NV21M,
+			.max_width = W5_MAX_ENC_PIC_WIDTH,
+			.min_width = W5_MIN_ENC_PIC_WIDTH,
+			.max_height = W5_MAX_ENC_PIC_HEIGHT,
+			.min_height = W5_MIN_ENC_PIC_HEIGHT,
+		},
+	}
+};
+
+static int switch_state(struct vpu_instance *inst, enum vpu_instance_state state)
+{
+	switch (state) {
+	case VPU_INST_STATE_NONE:
+		goto invalid_state_switch;
+	case VPU_INST_STATE_OPEN:
+		if (inst->state != VPU_INST_STATE_NONE)
+			goto invalid_state_switch;
+		break;
+	case VPU_INST_STATE_INIT_SEQ:
+		if (inst->state != VPU_INST_STATE_OPEN && inst->state != VPU_INST_STATE_STOP)
+			goto invalid_state_switch;
+		break;
+	case VPU_INST_STATE_PIC_RUN:
+		if (inst->state != VPU_INST_STATE_INIT_SEQ)
+			goto invalid_state_switch;
+		break;
+	case VPU_INST_STATE_STOP:
+		break;
+	};
+
+	dev_dbg(inst->dev->dev, "Switch state from %s to %s.\n",
+		state_to_str(inst->state), state_to_str(state));
+	inst->state = state;
+	return 0;
+
+invalid_state_switch:
+	WARN(1, "Invalid state switch from %s to %s.\n",
+	     state_to_str(inst->state), state_to_str(state));
+	return -EINVAL;
+}
+
+static void wave5_update_pix_fmt(struct v4l2_pix_format_mplane *pix_mp, unsigned int width,
+				 unsigned int height)
+{
+	switch (pix_mp->pixelformat) {
+	case V4L2_PIX_FMT_YUV420:
+	case V4L2_PIX_FMT_NV12:
+	case V4L2_PIX_FMT_NV21:
+		pix_mp->width = width;
+		pix_mp->height = height;
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = round_up(width, 32) * height * 3 / 2;
+		break;
+	case V4L2_PIX_FMT_YUV420M:
+		pix_mp->width = width;
+		pix_mp->height = height;
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = round_up(width, 32) * height;
+		pix_mp->plane_fmt[1].bytesperline = round_up(width, 32) / 2;
+		pix_mp->plane_fmt[1].sizeimage = round_up(width, 32) * height / 4;
+		pix_mp->plane_fmt[2].bytesperline = round_up(width, 32) / 2;
+		pix_mp->plane_fmt[2].sizeimage = round_up(width, 32) * height / 4;
+		break;
+	case V4L2_PIX_FMT_NV12M:
+	case V4L2_PIX_FMT_NV21M:
+		pix_mp->width = width;
+		pix_mp->height = height;
+		pix_mp->plane_fmt[0].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[0].sizeimage = round_up(width, 32) * height;
+		pix_mp->plane_fmt[1].bytesperline = round_up(width, 32);
+		pix_mp->plane_fmt[1].sizeimage = round_up(width, 32) * height / 2;
+		break;
+	default:
+		pix_mp->width = width;
+		pix_mp->height = height;
+		pix_mp->plane_fmt[0].bytesperline = 0;
+		pix_mp->plane_fmt[0].sizeimage = width * height / 8 * 3;
+		break;
+	}
+}
+
+static int start_encode(struct vpu_instance *inst, u32 *fail_res)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	int ret;
+	struct vb2_v4l2_buffer *src_buf;
+	struct vb2_v4l2_buffer *dst_buf;
+	struct frame_buffer frame_buf;
+	struct enc_param pic_param;
+	u32 stride = ALIGN(inst->dst_fmt.width, 32);
+	u32 luma_size = (stride * inst->dst_fmt.height);
+	u32 chroma_size = ((stride / 2) * (inst->dst_fmt.height / 2));
+
+	memset(&pic_param, 0, sizeof(struct enc_param));
+	memset(&frame_buf, 0, sizeof(struct frame_buffer));
+
+	dst_buf = v4l2_m2m_next_dst_buf(m2m_ctx);
+	if (!dst_buf) {
+		dev_dbg(inst->dev->dev, "%s: No destination buffer found\n", __func__);
+		return -EAGAIN;
+	}
+
+	pic_param.pic_stream_buffer_addr =
+		vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
+	pic_param.pic_stream_buffer_size =
+		vb2_plane_size(&dst_buf->vb2_buf, 0);
+
+	src_buf = v4l2_m2m_next_src_buf(m2m_ctx);
+	if (!src_buf) {
+		dev_dbg(inst->dev->dev, "%s: No source buffer found\n", __func__);
+		if (m2m_ctx->is_draining)
+			pic_param.src_end_flag = 1;
+		else
+			return -EAGAIN;
+	} else {
+		if (inst->src_fmt.num_planes == 1) {
+			frame_buf.buf_y =
+				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
+			frame_buf.buf_cb = frame_buf.buf_y + luma_size;
+			frame_buf.buf_cr = frame_buf.buf_cb + chroma_size;
+		} else if (inst->src_fmt.num_planes == 2) {
+			frame_buf.buf_y =
+				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
+			frame_buf.buf_cb =
+				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 1);
+			frame_buf.buf_cr = frame_buf.buf_cb + chroma_size;
+		} else if (inst->src_fmt.num_planes == 3) {
+			frame_buf.buf_y =
+				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
+			frame_buf.buf_cb =
+				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 1);
+			frame_buf.buf_cr =
+				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 2);
+		}
+		frame_buf.stride = stride;
+		pic_param.src_idx = src_buf->vb2_buf.index;
+	}
+
+	pic_param.source_frame = &frame_buf;
+	pic_param.code_option.implicit_header_encode = 1;
+	pic_param.code_option.encode_aud = inst->encode_aud;
+	ret = wave5_vpu_enc_start_one_frame(inst, &pic_param, fail_res);
+	if (ret) {
+		if (*fail_res == WAVE5_SYSERR_QUEUEING_FAIL)
+			return -EINVAL;
+
+		dev_dbg(inst->dev->dev, "%s: wave5_vpu_enc_start_one_frame fail: %d\n",
+			__func__, ret);
+		src_buf = v4l2_m2m_src_buf_remove(m2m_ctx);
+		if (!src_buf) {
+			dev_dbg(inst->dev->dev,
+				"%s: Removing src buf failed, the queue is empty\n",
+				__func__);
+			return -EINVAL;
+		}
+		dst_buf = v4l2_m2m_dst_buf_remove(m2m_ctx);
+		if (!dst_buf) {
+			dev_dbg(inst->dev->dev,
+				"%s: Removing dst buf failed, the queue is empty\n",
+				__func__);
+			return -EINVAL;
+		}
+		switch_state(inst, VPU_INST_STATE_STOP);
+		dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
+		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
+		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
+	} else {
+		dev_dbg(inst->dev->dev, "%s: wave5_vpu_enc_start_one_frame success\n",
+			__func__);
+		/*
+		 * Remove the source buffer from the ready-queue now and finish
+		 * it in the videobuf2 framework once the index is returned by the
+		 * firmware in finish_encode
+		 */
+		if (src_buf)
+			v4l2_m2m_src_buf_remove_by_idx(m2m_ctx, src_buf->vb2_buf.index);
+	}
+
+	return 0;
+}
+
+static void wave5_vpu_enc_finish_encode(struct vpu_instance *inst)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	int ret;
+	struct enc_output_info enc_output_info;
+	struct vb2_v4l2_buffer *src_buf = NULL;
+	struct vb2_v4l2_buffer *dst_buf = NULL;
+
+	ret = wave5_vpu_enc_get_output_info(inst, &enc_output_info);
+	if (ret) {
+		dev_dbg(inst->dev->dev,
+			"%s: vpu_enc_get_output_info fail: %d  reason: %u | info: %u\n",
+			__func__, ret, enc_output_info.error_reason, enc_output_info.warn_info);
+		return;
+	}
+
+	dev_dbg(inst->dev->dev,
+		"%s: pic_type %i recon_idx %i src_idx %i pic_byte %u pts %llu\n",
+		__func__,  enc_output_info.pic_type, enc_output_info.recon_frame_index,
+		enc_output_info.enc_src_idx, enc_output_info.enc_pic_byte, enc_output_info.pts);
+
+	/*
+	 * The source buffer will not be found in the ready-queue as it has been
+	 * dropped after sending of the encode firmware command, locate it in
+	 * the videobuf2 queue directly
+	 */
+	if (enc_output_info.enc_src_idx >= 0) {
+		struct vb2_buffer *vb = vb2_get_buffer(v4l2_m2m_get_src_vq(m2m_ctx),
+						       enc_output_info.enc_src_idx);
+		if (vb->state != VB2_BUF_STATE_ACTIVE)
+			dev_warn(inst->dev->dev,
+				 "%s: encoded buffer (%d) was not in ready queue %i.",
+				 __func__, enc_output_info.enc_src_idx, vb->state);
+		else
+			src_buf = to_vb2_v4l2_buffer(vb);
+
+		if (src_buf) {
+			inst->timestamp = src_buf->vb2_buf.timestamp;
+			v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
+		} else {
+			dev_warn(inst->dev->dev, "%s: no source buffer with index: %d found\n",
+				 __func__, enc_output_info.enc_src_idx);
+		}
+	}
+
+	dst_buf = v4l2_m2m_dst_buf_remove(m2m_ctx);
+	if (enc_output_info.recon_frame_index == RECON_IDX_FLAG_ENC_END) {
+		static const struct v4l2_event vpu_event_eos = {
+			.type = V4L2_EVENT_EOS
+		};
+
+		if (!WARN_ON(!dst_buf)) {
+			vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
+			dst_buf->field = V4L2_FIELD_NONE;
+			v4l2_m2m_last_buffer_done(m2m_ctx, dst_buf);
+		}
+
+		v4l2_event_queue_fh(&inst->v4l2_fh, &vpu_event_eos);
+
+		v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+	} else {
+		if (!dst_buf) {
+			dev_warn(inst->dev->dev, "No bitstream buffer.");
+			v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+			return;
+		}
+
+		vb2_set_plane_payload(&dst_buf->vb2_buf, 0, enc_output_info.bitstream_size);
+
+		dst_buf->vb2_buf.timestamp = inst->timestamp;
+		dst_buf->field = V4L2_FIELD_NONE;
+		if (enc_output_info.pic_type == PIC_TYPE_I) {
+			if (enc_output_info.enc_vcl_nut == 19 ||
+			    enc_output_info.enc_vcl_nut == 20)
+				dst_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
+			else
+				dst_buf->flags |= V4L2_BUF_FLAG_PFRAME;
+		} else if (enc_output_info.pic_type == PIC_TYPE_P) {
+			dst_buf->flags |= V4L2_BUF_FLAG_PFRAME;
+		} else if (enc_output_info.pic_type == PIC_TYPE_B) {
+			dst_buf->flags |= V4L2_BUF_FLAG_BFRAME;
+		}
+
+		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
+
+		dev_dbg(inst->dev->dev, "%s: frame_cycle %8u\n",
+			__func__, enc_output_info.frame_cycle);
+
+		v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+	}
+}
+
+static int wave5_vpu_enc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
+{
+	strscpy(cap->driver, VPU_ENC_DRV_NAME, sizeof(cap->driver));
+	strscpy(cap->card, VPU_ENC_DRV_NAME, sizeof(cap->card));
+
+	return 0;
+}
+
+static int wave5_vpu_enc_enum_framesizes(struct file *f, void *fh, struct v4l2_frmsizeenum *fsize)
+{
+	const struct vpu_format *vpu_fmt;
+
+	if (fsize->index)
+		return -EINVAL;
+
+	vpu_fmt = wave5_find_vpu_fmt(fsize->pixel_format, enc_fmt_list[VPU_FMT_TYPE_CODEC]);
+	if (!vpu_fmt) {
+		vpu_fmt = wave5_find_vpu_fmt(fsize->pixel_format, enc_fmt_list[VPU_FMT_TYPE_RAW]);
+		if (!vpu_fmt)
+			return -EINVAL;
+	}
+
+	fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
+	fsize->stepwise.min_width = vpu_fmt->min_width;
+	fsize->stepwise.max_width = vpu_fmt->max_width;
+	fsize->stepwise.step_width = 1;
+	fsize->stepwise.min_height = vpu_fmt->min_height;
+	fsize->stepwise.max_height = vpu_fmt->max_height;
+	fsize->stepwise.step_height = 1;
+
+	return 0;
+}
+
+static int wave5_vpu_enc_enum_fmt_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	const struct vpu_format *vpu_fmt;
+
+	dev_dbg(inst->dev->dev, "%s: index: %u\n", __func__, f->index);
+
+	vpu_fmt = wave5_find_vpu_fmt_by_idx(f->index, enc_fmt_list[VPU_FMT_TYPE_CODEC]);
+	if (!vpu_fmt)
+		return -EINVAL;
+
+	f->pixelformat = vpu_fmt->v4l2_pix_fmt;
+	f->flags = 0;
+
+	return 0;
+}
+
+static int wave5_vpu_enc_try_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	const struct vpu_format *vpu_fmt;
+
+	dev_dbg(inst->dev->dev, "%s: fourcc: %u width: %u height: %u num_planes: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.field);
+
+	vpu_fmt = wave5_find_vpu_fmt(f->fmt.pix_mp.pixelformat, enc_fmt_list[VPU_FMT_TYPE_CODEC]);
+	if (!vpu_fmt) {
+		f->fmt.pix_mp.pixelformat = inst->dst_fmt.pixelformat;
+		f->fmt.pix_mp.num_planes = inst->dst_fmt.num_planes;
+		wave5_update_pix_fmt(&f->fmt.pix_mp, inst->dst_fmt.width, inst->dst_fmt.height);
+	} else {
+		int width = clamp(f->fmt.pix_mp.width, vpu_fmt->min_width, vpu_fmt->max_width);
+		int height = clamp(f->fmt.pix_mp.height, vpu_fmt->min_height, vpu_fmt->max_height);
+
+		f->fmt.pix_mp.pixelformat = vpu_fmt->v4l2_pix_fmt;
+		f->fmt.pix_mp.num_planes = 1;
+		wave5_update_pix_fmt(&f->fmt.pix_mp, width, height);
+	}
+
+	f->fmt.pix_mp.flags = 0;
+	f->fmt.pix_mp.field = V4L2_FIELD_NONE;
+	f->fmt.pix_mp.colorspace = inst->colorspace;
+	f->fmt.pix_mp.ycbcr_enc = inst->ycbcr_enc;
+	f->fmt.pix_mp.quantization = inst->quantization;
+	f->fmt.pix_mp.xfer_func = inst->xfer_func;
+
+	return 0;
+}
+
+static int wave5_vpu_enc_s_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i, ret;
+
+	dev_dbg(inst->dev->dev, "%s: fourcc: %u width: %u height: %u num_planes: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.field);
+
+	ret = wave5_vpu_enc_try_fmt_cap(file, fh, f);
+	if (ret)
+		return ret;
+
+	inst->std = wave5_to_vpu_std(f->fmt.pix_mp.pixelformat, inst->type);
+	if (inst->std == STD_UNKNOWN) {
+		dev_warn(inst->dev->dev, "unsupported pixelformat: %.4s\n",
+			 (char *)&f->fmt.pix_mp.pixelformat);
+		return -EINVAL;
+	}
+
+	inst->dst_fmt.width = f->fmt.pix_mp.width;
+	inst->dst_fmt.height = f->fmt.pix_mp.height;
+	inst->dst_fmt.pixelformat = f->fmt.pix_mp.pixelformat;
+	inst->dst_fmt.field = f->fmt.pix_mp.field;
+	inst->dst_fmt.flags = f->fmt.pix_mp.flags;
+	inst->dst_fmt.num_planes = f->fmt.pix_mp.num_planes;
+	for (i = 0; i < inst->dst_fmt.num_planes; i++) {
+		inst->dst_fmt.plane_fmt[i].bytesperline = f->fmt.pix_mp.plane_fmt[i].bytesperline;
+		inst->dst_fmt.plane_fmt[i].sizeimage = f->fmt.pix_mp.plane_fmt[i].sizeimage;
+	}
+
+	return 0;
+}
+
+static int wave5_vpu_enc_g_fmt_cap(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i;
+
+	f->fmt.pix_mp.width = inst->dst_fmt.width;
+	f->fmt.pix_mp.height = inst->dst_fmt.height;
+	f->fmt.pix_mp.pixelformat = inst->dst_fmt.pixelformat;
+	f->fmt.pix_mp.field = inst->dst_fmt.field;
+	f->fmt.pix_mp.flags = inst->dst_fmt.flags;
+	f->fmt.pix_mp.num_planes = inst->dst_fmt.num_planes;
+	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
+		f->fmt.pix_mp.plane_fmt[i].bytesperline = inst->dst_fmt.plane_fmt[i].bytesperline;
+		f->fmt.pix_mp.plane_fmt[i].sizeimage = inst->dst_fmt.plane_fmt[i].sizeimage;
+	}
+
+	f->fmt.pix_mp.colorspace = inst->colorspace;
+	f->fmt.pix_mp.ycbcr_enc = inst->ycbcr_enc;
+	f->fmt.pix_mp.quantization = inst->quantization;
+	f->fmt.pix_mp.xfer_func = inst->xfer_func;
+
+	return 0;
+}
+
+static int wave5_vpu_enc_enum_fmt_out(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	const struct vpu_format *vpu_fmt;
+
+	dev_dbg(inst->dev->dev, "%s: index: %u\n", __func__, f->index);
+
+	vpu_fmt = wave5_find_vpu_fmt_by_idx(f->index, enc_fmt_list[VPU_FMT_TYPE_RAW]);
+	if (!vpu_fmt)
+		return -EINVAL;
+
+	f->pixelformat = vpu_fmt->v4l2_pix_fmt;
+	f->flags = 0;
+
+	return 0;
+}
+
+static int wave5_vpu_enc_try_fmt_out(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	const struct vpu_format *vpu_fmt;
+
+	dev_dbg(inst->dev->dev, "%s: fourcc: %u width: %u height: %u num_planes: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.field);
+
+	vpu_fmt = wave5_find_vpu_fmt(f->fmt.pix_mp.pixelformat, enc_fmt_list[VPU_FMT_TYPE_RAW]);
+	if (!vpu_fmt) {
+		f->fmt.pix_mp.pixelformat = inst->src_fmt.pixelformat;
+		f->fmt.pix_mp.num_planes = inst->src_fmt.num_planes;
+		wave5_update_pix_fmt(&f->fmt.pix_mp, inst->src_fmt.width, inst->src_fmt.height);
+	} else {
+		int width = clamp(f->fmt.pix_mp.width, vpu_fmt->min_width, vpu_fmt->max_width);
+		int height = clamp(f->fmt.pix_mp.height, vpu_fmt->min_height, vpu_fmt->max_height);
+		const struct v4l2_format_info *info = v4l2_format_info(vpu_fmt->v4l2_pix_fmt);
+
+		f->fmt.pix_mp.pixelformat = vpu_fmt->v4l2_pix_fmt;
+		f->fmt.pix_mp.num_planes = info->mem_planes;
+		wave5_update_pix_fmt(&f->fmt.pix_mp, width, height);
+	}
+
+	f->fmt.pix_mp.flags = 0;
+	f->fmt.pix_mp.field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int wave5_vpu_enc_s_fmt_out(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	int i, ret;
+
+	dev_dbg(inst->dev->dev, "%s: fourcc: %u width: %u height: %u num_planes: %u field: %u\n",
+		__func__, f->fmt.pix_mp.pixelformat, f->fmt.pix_mp.width, f->fmt.pix_mp.height,
+		f->fmt.pix_mp.num_planes, f->fmt.pix_mp.field);
+
+	ret = wave5_vpu_enc_try_fmt_out(file, fh, f);
+	if (ret)
+		return ret;
+
+	inst->src_fmt.width = f->fmt.pix_mp.width;
+	inst->src_fmt.height = f->fmt.pix_mp.height;
+	inst->src_fmt.pixelformat = f->fmt.pix_mp.pixelformat;
+	inst->src_fmt.field = f->fmt.pix_mp.field;
+	inst->src_fmt.flags = f->fmt.pix_mp.flags;
+	inst->src_fmt.num_planes = f->fmt.pix_mp.num_planes;
+	for (i = 0; i < inst->src_fmt.num_planes; i++) {
+		inst->src_fmt.plane_fmt[i].bytesperline = f->fmt.pix_mp.plane_fmt[i].bytesperline;
+		inst->src_fmt.plane_fmt[i].sizeimage = f->fmt.pix_mp.plane_fmt[i].sizeimage;
+	}
+
+	if (inst->src_fmt.pixelformat == V4L2_PIX_FMT_NV12 ||
+	    inst->src_fmt.pixelformat == V4L2_PIX_FMT_NV12M) {
+		inst->cbcr_interleave = true;
+		inst->nv21 = false;
+	} else if (inst->src_fmt.pixelformat == V4L2_PIX_FMT_NV21 ||
+		   inst->src_fmt.pixelformat == V4L2_PIX_FMT_NV21M) {
+		inst->cbcr_interleave = true;
+		inst->nv21 = true;
+	} else {
+		inst->cbcr_interleave = false;
+		inst->nv21 = false;
+	}
+
+	inst->colorspace = f->fmt.pix_mp.colorspace;
+	inst->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+	inst->quantization = f->fmt.pix_mp.quantization;
+	inst->xfer_func = f->fmt.pix_mp.xfer_func;
+
+	wave5_update_pix_fmt(&inst->dst_fmt, f->fmt.pix_mp.width, f->fmt.pix_mp.height);
+
+	return 0;
+}
+
+static int wave5_vpu_enc_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+
+	dev_dbg(inst->dev->dev, "%s: type: %u | target: %u\n", __func__, s->type, s->target);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP:
+		s->r.left = 0;
+		s->r.top = 0;
+		s->r.width = inst->dst_fmt.width;
+		s->r.height = inst->dst_fmt.height;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int wave5_vpu_enc_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	if (s->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	dev_dbg(inst->dev->dev, "%s: V4L2_SEL_TGT_CROP width: %u | height: %u\n",
+		__func__, s->r.width, s->r.height);
+
+	s->r.left = 0;
+	s->r.top = 0;
+	s->r.width = inst->src_fmt.width;
+	s->r.height = inst->src_fmt.height;
+
+	return 0;
+}
+
+static int wave5_vpu_enc_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *ec)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	int ret;
+
+	ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, ec);
+	if (ret)
+		return ret;
+
+	if (!wave5_vpu_both_queues_are_streaming(inst))
+		return 0;
+
+	switch (ec->cmd) {
+	case V4L2_ENC_CMD_STOP:
+		if (m2m_ctx->is_draining)
+			return -EBUSY;
+
+		if (m2m_ctx->has_stopped)
+			return 0;
+
+		m2m_ctx->last_src_buf = v4l2_m2m_last_src_buf(m2m_ctx);
+		m2m_ctx->is_draining = true;
+		break;
+	case V4L2_ENC_CMD_START:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int wave5_vpu_enc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+
+	dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, a->type);
+
+	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		return -EINVAL;
+
+	a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
+	a->parm.output.timeperframe.numerator = 1;
+	a->parm.output.timeperframe.denominator = inst->frame_rate;
+
+	dev_dbg(inst->dev->dev, "%s: numerator: %u | denominator: %u\n",
+		__func__, a->parm.output.timeperframe.numerator,
+		a->parm.output.timeperframe.denominator);
+
+	return 0;
+}
+
+static int wave5_vpu_enc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+{
+	struct vpu_instance *inst = wave5_to_vpu_inst(fh);
+
+	dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, a->type);
+
+	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		return -EINVAL;
+
+	a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
+	if (a->parm.output.timeperframe.denominator && a->parm.output.timeperframe.numerator) {
+		inst->frame_rate = a->parm.output.timeperframe.denominator /
+				   a->parm.output.timeperframe.numerator;
+	} else {
+		a->parm.output.timeperframe.numerator = 1;
+		a->parm.output.timeperframe.denominator = inst->frame_rate;
+	}
+
+	dev_dbg(inst->dev->dev, "%s: numerator: %u | denominator: %u\n",
+		__func__, a->parm.output.timeperframe.numerator,
+		a->parm.output.timeperframe.denominator);
+
+	return 0;
+}
+
+static const struct v4l2_ioctl_ops wave5_vpu_enc_ioctl_ops = {
+	.vidioc_querycap = wave5_vpu_enc_querycap,
+	.vidioc_enum_framesizes = wave5_vpu_enc_enum_framesizes,
+
+	.vidioc_enum_fmt_vid_cap	= wave5_vpu_enc_enum_fmt_cap,
+	.vidioc_s_fmt_vid_cap_mplane = wave5_vpu_enc_s_fmt_cap,
+	.vidioc_g_fmt_vid_cap_mplane = wave5_vpu_enc_g_fmt_cap,
+	.vidioc_try_fmt_vid_cap_mplane = wave5_vpu_enc_try_fmt_cap,
+
+	.vidioc_enum_fmt_vid_out	= wave5_vpu_enc_enum_fmt_out,
+	.vidioc_s_fmt_vid_out_mplane = wave5_vpu_enc_s_fmt_out,
+	.vidioc_g_fmt_vid_out_mplane = wave5_vpu_g_fmt_out,
+	.vidioc_try_fmt_vid_out_mplane = wave5_vpu_enc_try_fmt_out,
+
+	.vidioc_g_selection = wave5_vpu_enc_g_selection,
+	.vidioc_s_selection = wave5_vpu_enc_s_selection,
+
+	.vidioc_g_parm = wave5_vpu_enc_g_parm,
+	.vidioc_s_parm = wave5_vpu_enc_s_parm,
+
+	.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
+	.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
+	.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+	.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
+	.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
+	.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+	.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
+	.vidioc_streamon = v4l2_m2m_ioctl_streamon,
+	.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
+
+	.vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd,
+	.vidioc_encoder_cmd = wave5_vpu_enc_encoder_cmd,
+
+	.vidioc_subscribe_event = wave5_vpu_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static int wave5_vpu_enc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vpu_instance *inst = wave5_ctrl_to_vpu_inst(ctrl);
+
+	dev_dbg(inst->dev->dev, "%s: name: %s | value: %d\n", __func__, ctrl->name, ctrl->val);
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_VIDEO_AU_DELIMITER:
+		inst->encode_aud = ctrl->val;
+		break;
+	case V4L2_CID_HFLIP:
+		inst->mirror_direction |= (ctrl->val << 1);
+		break;
+	case V4L2_CID_VFLIP:
+		inst->mirror_direction |= ctrl->val;
+		break;
+	case V4L2_CID_ROTATE:
+		inst->rot_angle = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
+		inst->vbv_buf_size = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_BITRATE_MODE_VBR:
+			inst->rc_mode = 0;
+			break;
+		case V4L2_MPEG_VIDEO_BITRATE_MODE_CBR:
+			inst->rc_mode = 1;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		inst->bit_rate = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+		inst->enc_param.avc_idr_period = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
+		inst->enc_param.independ_slice_mode = ctrl->val;
+		inst->enc_param.avc_slice_mode = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB:
+		inst->enc_param.independ_slice_mode_arg = ctrl->val;
+		inst->enc_param.avc_slice_arg = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
+		inst->rc_enable = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE:
+		inst->enc_param.mb_level_rc_enable = ctrl->val;
+		inst->enc_param.cu_level_rc_enable = ctrl->val;
+		inst->enc_param.hvs_qp_enable = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_PROFILE:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN:
+			inst->enc_param.profile = HEVC_PROFILE_MAIN;
+			inst->bit_depth = 8;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_STILL_PICTURE:
+			inst->enc_param.profile = HEVC_PROFILE_STILLPICTURE;
+			inst->enc_param.en_still_picture = 1;
+			inst->bit_depth = 8;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10:
+			inst->enc_param.profile = HEVC_PROFILE_MAIN10;
+			inst->bit_depth = 10;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_1:
+			inst->enc_param.level = 10 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_2:
+			inst->enc_param.level = 20 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_2_1:
+			inst->enc_param.level = 21 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_3:
+			inst->enc_param.level = 30 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_3_1:
+			inst->enc_param.level = 31 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_4:
+			inst->enc_param.level = 40 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_4_1:
+			inst->enc_param.level = 41 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_5:
+			inst->enc_param.level = 50 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1:
+			inst->enc_param.level = 51 * 3;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LEVEL_5_2:
+			inst->enc_param.level = 52 * 3;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP:
+		inst->enc_param.min_qp_i = ctrl->val;
+		inst->enc_param.min_qp_p = ctrl->val;
+		inst->enc_param.min_qp_b = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP:
+		inst->enc_param.max_qp_i = ctrl->val;
+		inst->enc_param.max_qp_p = ctrl->val;
+		inst->enc_param.max_qp_b = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_QP:
+		inst->enc_param.intra_qp = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE_DISABLED:
+			inst->enc_param.disable_deblk = 1;
+			inst->enc_param.sao_enable = 0;
+			inst->enc_param.lf_cross_slice_boundary_enable = 0;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE_ENABLED:
+			inst->enc_param.disable_deblk = 0;
+			inst->enc_param.sao_enable = 1;
+			inst->enc_param.lf_cross_slice_boundary_enable = 1;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY:
+			inst->enc_param.disable_deblk = 0;
+			inst->enc_param.sao_enable = 1;
+			inst->enc_param.lf_cross_slice_boundary_enable = 0;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_LF_BETA_OFFSET_DIV2:
+		inst->enc_param.beta_offset_div2 = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_LF_TC_OFFSET_DIV2:
+		inst->enc_param.tc_offset_div2 = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_TYPE:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_HEVC_REFRESH_NONE:
+			inst->enc_param.decoding_refresh_type = 0;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_REFRESH_CRA:
+			inst->enc_param.decoding_refresh_type = 1;
+			break;
+		case V4L2_MPEG_VIDEO_HEVC_REFRESH_IDR:
+			inst->enc_param.decoding_refresh_type = 2;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_PERIOD:
+		inst->enc_param.intra_period = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_LOSSLESS_CU:
+		inst->enc_param.lossless_enable = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_CONST_INTRA_PRED:
+		inst->enc_param.const_intra_pred_flag = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_WAVEFRONT:
+		inst->enc_param.wpp_enable = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_STRONG_SMOOTHING:
+		inst->enc_param.strong_intra_smooth_enable = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_MAX_NUM_MERGE_MV_MINUS1:
+		inst->enc_param.max_num_merge = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_HEVC_TMV_PREDICTION:
+		inst->enc_param.tmvp_enable = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE:
+		case V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE:
+			inst->enc_param.profile = H264_PROFILE_BP;
+			inst->bit_depth = 8;
+			break;
+		case V4L2_MPEG_VIDEO_H264_PROFILE_MAIN:
+			inst->enc_param.profile = H264_PROFILE_MP;
+			inst->bit_depth = 8;
+			break;
+		case V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED:
+			inst->enc_param.profile = H264_PROFILE_EXTENDED;
+			inst->bit_depth = 8;
+			break;
+		case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH:
+			inst->enc_param.profile = H264_PROFILE_HP;
+			inst->bit_depth = 8;
+			break;
+		case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10:
+			inst->enc_param.profile = H264_PROFILE_HIGH10;
+			inst->bit_depth = 10;
+			break;
+		case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422:
+			inst->enc_param.profile = H264_PROFILE_HIGH422;
+			inst->bit_depth = 10;
+			break;
+		case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE:
+			inst->enc_param.profile = H264_PROFILE_HIGH444;
+			inst->bit_depth = 10;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_H264_LEVEL_1_0:
+			inst->enc_param.level = 10;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_1B:
+			inst->enc_param.level = 9;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_1_1:
+			inst->enc_param.level = 11;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_1_2:
+			inst->enc_param.level = 12;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_1_3:
+			inst->enc_param.level = 13;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_2_0:
+			inst->enc_param.level = 20;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_2_1:
+			inst->enc_param.level = 21;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_2_2:
+			inst->enc_param.level = 22;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_3_0:
+			inst->enc_param.level = 30;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_3_1:
+			inst->enc_param.level = 31;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_3_2:
+			inst->enc_param.level = 32;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
+			inst->enc_param.level = 40;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
+			inst->enc_param.level = 41;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
+			inst->enc_param.level = 42;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_5_0:
+			inst->enc_param.level = 50;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LEVEL_5_1:
+			inst->enc_param.level = 51;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
+		inst->enc_param.min_qp_i = ctrl->val;
+		inst->enc_param.min_qp_p = ctrl->val;
+		inst->enc_param.min_qp_b = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
+		inst->enc_param.max_qp_i = ctrl->val;
+		inst->enc_param.max_qp_p = ctrl->val;
+		inst->enc_param.max_qp_b = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
+		inst->enc_param.intra_qp = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
+		switch (ctrl->val) {
+		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED:
+			inst->enc_param.disable_deblk = 1;
+			inst->enc_param.lf_cross_slice_boundary_enable = 1;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED:
+			inst->enc_param.disable_deblk = 0;
+			inst->enc_param.lf_cross_slice_boundary_enable = 1;
+			break;
+		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY:
+			inst->enc_param.disable_deblk = 0;
+			inst->enc_param.lf_cross_slice_boundary_enable = 0;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA:
+		inst->enc_param.beta_offset_div2 = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA:
+		inst->enc_param.tc_offset_div2 = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM:
+		inst->enc_param.transform8x8_enable = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
+		inst->enc_param.const_intra_pred_flag = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET:
+		inst->enc_param.chroma_cb_qp_offset = ctrl->val;
+		inst->enc_param.chroma_cr_qp_offset = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
+		inst->enc_param.intra_period = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
+		inst->enc_param.entropy_coding_mode = ctrl->val;
+		break;
+	case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops wave5_vpu_enc_ctrl_ops = {
+	.s_ctrl = wave5_vpu_enc_s_ctrl,
+};
+
+static int wave5_vpu_enc_queue_setup(struct vb2_queue *q, unsigned int *num_buffers,
+				     unsigned int *num_planes, unsigned int sizes[],
+				     struct device *alloc_devs[])
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_pix_format_mplane inst_format =
+		(q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) ? inst->src_fmt : inst->dst_fmt;
+	unsigned int i;
+
+	dev_dbg(inst->dev->dev, "%s: num_buffers: %u | num_planes: %u | type: %u\n", __func__,
+		*num_buffers, *num_planes, q->type);
+
+	if (*num_planes) {
+		if (inst_format.num_planes != *num_planes)
+			return -EINVAL;
+
+		for (i = 0; i < *num_planes; i++) {
+			if (sizes[i] < inst_format.plane_fmt[i].sizeimage)
+				return -EINVAL;
+		}
+	} else {
+		*num_planes = inst_format.num_planes;
+		for (i = 0; i < *num_planes; i++) {
+			sizes[i] = inst_format.plane_fmt[i].sizeimage;
+			dev_dbg(inst->dev->dev, "%s: size[%u]: %u\n", __func__, i, sizes[i]);
+		}
+	}
+
+	dev_dbg(inst->dev->dev, "%s: size: %u\n", __func__, sizes[0]);
+
+	return 0;
+}
+
+static void wave5_vpu_enc_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vpu_instance *inst = vb2_get_drv_priv(vb->vb2_queue);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	dev_dbg(inst->dev->dev, "%s: type: %4u index: %4u size: ([0]=%4lu, [1]=%4lu, [2]=%4lu)\n",
+		__func__, vb->type, vb->index, vb2_plane_size(&vbuf->vb2_buf, 0),
+		vb2_plane_size(&vbuf->vb2_buf, 1), vb2_plane_size(&vbuf->vb2_buf, 2));
+
+	if (vb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		vbuf->sequence = inst->queued_src_buf_num++;
+	else
+		vbuf->sequence = inst->queued_dst_buf_num++;
+
+	v4l2_m2m_buf_queue(m2m_ctx, vbuf);
+}
+
+static void wave5_set_enc_openparam(struct enc_open_param *open_param,
+				    struct vpu_instance *inst)
+{
+	struct enc_wave_param input = inst->enc_param;
+	u32 num_ctu_row = ALIGN(inst->dst_fmt.height, 64) / 64;
+	u32 num_mb_row = ALIGN(inst->dst_fmt.height, 16) / 16;
+
+	open_param->wave_param.gop_preset_idx = PRESET_IDX_IPP_SINGLE;
+	open_param->wave_param.hvs_qp_scale = 2;
+	open_param->wave_param.hvs_max_delta_qp = 10;
+	open_param->wave_param.skip_intra_trans = 1;
+	open_param->wave_param.intra_nx_n_enable = 1;
+	open_param->wave_param.nr_intra_weight_y = 7;
+	open_param->wave_param.nr_intra_weight_cb = 7;
+	open_param->wave_param.nr_intra_weight_cr = 7;
+	open_param->wave_param.nr_inter_weight_y = 4;
+	open_param->wave_param.nr_inter_weight_cb = 4;
+	open_param->wave_param.nr_inter_weight_cr = 4;
+	open_param->wave_param.rdo_skip = 1;
+	open_param->wave_param.lambda_scaling_enable = 1;
+
+	open_param->line_buf_int_en = true;
+	open_param->pic_width = inst->dst_fmt.width;
+	open_param->pic_height = inst->dst_fmt.height;
+	open_param->frame_rate_info = inst->frame_rate;
+	open_param->rc_enable = inst->rc_enable;
+	if (inst->rc_enable) {
+		open_param->wave_param.initial_rc_qp = -1;
+		open_param->wave_param.rc_weight_param = 16;
+		open_param->wave_param.rc_weight_buf = 128;
+	}
+	open_param->wave_param.mb_level_rc_enable = input.mb_level_rc_enable;
+	open_param->wave_param.cu_level_rc_enable = input.cu_level_rc_enable;
+	open_param->wave_param.hvs_qp_enable = input.hvs_qp_enable;
+	open_param->bit_rate = inst->bit_rate;
+	open_param->vbv_buffer_size = inst->vbv_buf_size;
+	if (inst->rc_mode == 0)
+		open_param->vbv_buffer_size = 3000;
+	open_param->wave_param.profile = input.profile;
+	open_param->wave_param.en_still_picture = input.en_still_picture;
+	open_param->wave_param.level = input.level;
+	open_param->wave_param.internal_bit_depth = inst->bit_depth;
+	open_param->wave_param.intra_qp = input.intra_qp;
+	open_param->wave_param.min_qp_i = input.min_qp_i;
+	open_param->wave_param.max_qp_i = input.max_qp_i;
+	open_param->wave_param.min_qp_p = input.min_qp_p;
+	open_param->wave_param.max_qp_p = input.max_qp_p;
+	open_param->wave_param.min_qp_b = input.min_qp_b;
+	open_param->wave_param.max_qp_b = input.max_qp_b;
+	open_param->wave_param.disable_deblk = input.disable_deblk;
+	open_param->wave_param.lf_cross_slice_boundary_enable =
+		input.lf_cross_slice_boundary_enable;
+	open_param->wave_param.tc_offset_div2 = input.tc_offset_div2;
+	open_param->wave_param.beta_offset_div2 = input.beta_offset_div2;
+	open_param->wave_param.decoding_refresh_type = input.decoding_refresh_type;
+	open_param->wave_param.intra_period = input.intra_period;
+	if (inst->std == W_HEVC_ENC) {
+		if (input.intra_period == 0) {
+			open_param->wave_param.decoding_refresh_type = DEC_REFRESH_TYPE_IDR;
+			open_param->wave_param.intra_period = input.avc_idr_period;
+		}
+	} else {
+		open_param->wave_param.avc_idr_period = input.avc_idr_period;
+	}
+	open_param->wave_param.entropy_coding_mode = input.entropy_coding_mode;
+	open_param->wave_param.lossless_enable = input.lossless_enable;
+	open_param->wave_param.const_intra_pred_flag = input.const_intra_pred_flag;
+	open_param->wave_param.wpp_enable = input.wpp_enable;
+	open_param->wave_param.strong_intra_smooth_enable = input.strong_intra_smooth_enable;
+	open_param->wave_param.max_num_merge = input.max_num_merge;
+	open_param->wave_param.tmvp_enable = input.tmvp_enable;
+	open_param->wave_param.transform8x8_enable = input.transform8x8_enable;
+	open_param->wave_param.chroma_cb_qp_offset = input.chroma_cb_qp_offset;
+	open_param->wave_param.chroma_cr_qp_offset = input.chroma_cr_qp_offset;
+	open_param->wave_param.independ_slice_mode = input.independ_slice_mode;
+	open_param->wave_param.independ_slice_mode_arg = input.independ_slice_mode_arg;
+	open_param->wave_param.avc_slice_mode = input.avc_slice_mode;
+	open_param->wave_param.avc_slice_arg = input.avc_slice_arg;
+	open_param->wave_param.intra_mb_refresh_mode = input.intra_mb_refresh_mode;
+	if (input.intra_mb_refresh_mode != REFRESH_MB_MODE_NONE) {
+		if (num_mb_row >= input.intra_mb_refresh_arg)
+			open_param->wave_param.intra_mb_refresh_arg =
+				num_mb_row / input.intra_mb_refresh_arg;
+		else
+			open_param->wave_param.intra_mb_refresh_arg = num_mb_row;
+	}
+	open_param->wave_param.intra_refresh_mode = input.intra_refresh_mode;
+	if (input.intra_refresh_mode != 0) {
+		if (num_ctu_row >= input.intra_refresh_arg)
+			open_param->wave_param.intra_refresh_arg =
+				num_ctu_row / input.intra_refresh_arg;
+		else
+			open_param->wave_param.intra_refresh_arg = num_ctu_row;
+	}
+}
+
+static int initialize_sequence(struct vpu_instance *inst)
+{
+	struct enc_initial_info initial_info;
+	struct v4l2_ctrl *ctrl;
+	int ret;
+
+	ret = wave5_vpu_enc_issue_seq_init(inst);
+	if (ret) {
+		dev_err(inst->dev->dev, "%s: wave5_vpu_enc_issue_seq_init, fail: %d\n",
+			__func__, ret);
+		return ret;
+	}
+
+	if (wave5_vpu_wait_interrupt(inst, VPU_ENC_TIMEOUT) < 0) {
+		dev_err(inst->dev->dev, "%s: wave5_vpu_wait_interrupt failed\n", __func__);
+		return -EINVAL;
+	}
+
+	ret = wave5_vpu_enc_complete_seq_init(inst, &initial_info);
+	if (ret)
+		return ret;
+
+	dev_dbg(inst->dev->dev, "%s: min_frame_buffer: %u | min_source_buffer: %u\n",
+		__func__, initial_info.min_frame_buffer_count,
+		initial_info.min_src_frame_count);
+	inst->min_src_buf_count = initial_info.min_src_frame_count +
+				  COMMAND_QUEUE_DEPTH;
+
+	ctrl = v4l2_ctrl_find(&inst->v4l2_ctrl_hdl,
+			      V4L2_CID_MIN_BUFFERS_FOR_OUTPUT);
+	if (ctrl)
+		v4l2_ctrl_s_ctrl(ctrl, inst->min_src_buf_count);
+
+	inst->fbc_buf_count = initial_info.min_frame_buffer_count;
+
+	return 0;
+}
+
+static int prepare_fb(struct vpu_instance *inst)
+{
+	u32 fb_stride = ALIGN(inst->dst_fmt.width, 32);
+	u32 fb_height = ALIGN(inst->dst_fmt.height, 32);
+	int i, ret = 0;
+
+	for (i = 0; i < inst->fbc_buf_count; i++) {
+		u32 luma_size = fb_stride * fb_height;
+		u32 chroma_size = ALIGN(fb_stride / 2, 16) * fb_height;
+
+		inst->frame_vbuf[i].size = luma_size + chroma_size;
+		ret = wave5_vdi_allocate_dma_memory(inst->dev, &inst->frame_vbuf[i]);
+		if (ret < 0) {
+			dev_err(inst->dev->dev, "%s: failed to allocate FBC buffer %zu\n",
+				__func__, inst->frame_vbuf[i].size);
+			goto free_buffers;
+		}
+
+		inst->frame_buf[i].buf_y = inst->frame_vbuf[i].daddr;
+		inst->frame_buf[i].buf_cb = (dma_addr_t)-1;
+		inst->frame_buf[i].buf_cr = (dma_addr_t)-1;
+		inst->frame_buf[i].update_fb_info = true;
+		inst->frame_buf[i].size = inst->frame_vbuf[i].size;
+	}
+
+	ret = wave5_vpu_enc_register_frame_buffer(inst, inst->fbc_buf_count, fb_stride,
+						  fb_height, COMPRESSED_FRAME_MAP);
+	if (ret) {
+		dev_err(inst->dev->dev,
+			"%s: wave5_vpu_enc_register_frame_buffer, fail: %d\n",
+			__func__, ret);
+		goto free_buffers;
+	}
+
+	return 0;
+free_buffers:
+	for (i = 0; i < inst->fbc_buf_count; i++)
+		wave5_vpu_dec_reset_framebuffer(inst, i);
+	return ret;
+}
+
+static int wave5_vpu_enc_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	int ret = 0;
+
+	v4l2_m2m_update_start_streaming_state(m2m_ctx, q);
+
+	if (inst->state == VPU_INST_STATE_NONE && q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+		struct enc_open_param open_param;
+
+		memset(&open_param, 0, sizeof(struct enc_open_param));
+
+		wave5_set_enc_openparam(&open_param, inst);
+
+		ret = wave5_vpu_enc_open(inst, &open_param);
+		if (ret) {
+			dev_dbg(inst->dev->dev, "%s: wave5_vpu_enc_open, fail: %d\n",
+				__func__, ret);
+			goto return_buffers;
+		}
+
+		if (inst->mirror_direction) {
+			wave5_vpu_enc_give_command(inst, ENABLE_MIRRORING, NULL);
+			wave5_vpu_enc_give_command(inst, SET_MIRROR_DIRECTION,
+						   &inst->mirror_direction);
+		}
+		if (inst->rot_angle) {
+			wave5_vpu_enc_give_command(inst, ENABLE_ROTATION, NULL);
+			wave5_vpu_enc_give_command(inst, SET_ROTATION_ANGLE, &inst->rot_angle);
+		}
+
+		ret = switch_state(inst, VPU_INST_STATE_OPEN);
+		if (ret)
+			goto return_buffers;
+	}
+	if (inst->state == VPU_INST_STATE_OPEN && m2m_ctx->cap_q_ctx.q.streaming) {
+		ret = initialize_sequence(inst);
+		if (ret) {
+			dev_warn(inst->dev->dev, "Sequence not found: %d\n", ret);
+			goto return_buffers;
+		}
+		ret = switch_state(inst, VPU_INST_STATE_INIT_SEQ);
+		if (ret)
+			goto return_buffers;
+		/*
+		 * The sequence must be analyzed first to calculate the proper
+		 * size of the auxiliary buffers.
+		 */
+		ret = prepare_fb(inst);
+		if (ret) {
+			dev_warn(inst->dev->dev, "Framebuffer preparation, fail: %d\n", ret);
+			goto return_buffers;
+		}
+
+		ret = switch_state(inst, VPU_INST_STATE_PIC_RUN);
+	}
+	if (ret)
+		goto return_buffers;
+
+	return 0;
+return_buffers:
+	wave5_return_bufs(q, VB2_BUF_STATE_QUEUED);
+	return ret;
+}
+
+static void streamoff_output(struct vpu_instance *inst, struct vb2_queue *q)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct vb2_v4l2_buffer *buf;
+
+	while ((buf = v4l2_m2m_src_buf_remove(m2m_ctx))) {
+		dev_dbg(inst->dev->dev, "%s: buf type %4u | index %4u\n",
+			__func__, buf->vb2_buf.type, buf->vb2_buf.index);
+		v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
+	}
+}
+
+static void streamoff_capture(struct vpu_instance *inst, struct vb2_queue *q)
+{
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	struct vb2_v4l2_buffer *buf;
+
+	while ((buf = v4l2_m2m_dst_buf_remove(m2m_ctx))) {
+		dev_dbg(inst->dev->dev, "%s: buf type %4u | index %4u\n",
+			__func__, buf->vb2_buf.type, buf->vb2_buf.index);
+		vb2_set_plane_payload(&buf->vb2_buf, 0, 0);
+		v4l2_m2m_buf_done(buf, VB2_BUF_STATE_ERROR);
+	}
+
+	v4l2_m2m_clear_state(m2m_ctx);
+}
+
+static void wave5_vpu_enc_stop_streaming(struct vb2_queue *q)
+{
+	struct vpu_instance *inst = vb2_get_drv_priv(q);
+	bool check_cmd = true;
+
+	/*
+	 * Note that we don't need m2m_ctx->next_buf_last for this driver, so we
+	 * don't call v4l2_m2m_update_stop_streaming_state().
+	 */
+
+	dev_dbg(inst->dev->dev, "%s: type: %u\n", __func__, q->type);
+
+	if (wave5_vpu_both_queues_are_streaming(inst))
+		switch_state(inst, VPU_INST_STATE_STOP);
+
+	while (check_cmd) {
+		struct queue_status_info q_status;
+		struct enc_output_info enc_output_info;
+
+		wave5_vpu_enc_give_command(inst, ENC_GET_QUEUE_STATUS, &q_status);
+
+		if (q_status.report_queue_count == 0)
+			break;
+
+		if (wave5_vpu_wait_interrupt(inst, VPU_ENC_TIMEOUT) < 0)
+			break;
+
+		if (wave5_vpu_enc_get_output_info(inst, &enc_output_info))
+			dev_dbg(inst->dev->dev, "Getting encoding results from fw, fail\n");
+	}
+
+	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		streamoff_output(inst, q);
+	else
+		streamoff_capture(inst, q);
+}
+
+static const struct vb2_ops wave5_vpu_enc_vb2_ops = {
+	.queue_setup = wave5_vpu_enc_queue_setup,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+	.buf_queue = wave5_vpu_enc_buf_queue,
+	.start_streaming = wave5_vpu_enc_start_streaming,
+	.stop_streaming = wave5_vpu_enc_stop_streaming,
+};
+
+static void wave5_set_default_format(struct v4l2_pix_format_mplane *src_fmt,
+				     struct v4l2_pix_format_mplane *dst_fmt)
+{
+	unsigned int src_pix_fmt = enc_fmt_list[VPU_FMT_TYPE_RAW][0].v4l2_pix_fmt;
+	const struct v4l2_format_info *src_fmt_info = v4l2_format_info(src_pix_fmt);
+
+	src_fmt->pixelformat = src_pix_fmt;
+	src_fmt->field = V4L2_FIELD_NONE;
+	src_fmt->flags = 0;
+	src_fmt->num_planes = src_fmt_info->mem_planes;
+	wave5_update_pix_fmt(src_fmt, 416, 240);
+
+	dst_fmt->pixelformat = enc_fmt_list[VPU_FMT_TYPE_CODEC][0].v4l2_pix_fmt;
+	dst_fmt->field = V4L2_FIELD_NONE;
+	dst_fmt->flags = 0;
+	dst_fmt->num_planes = 1;
+	wave5_update_pix_fmt(dst_fmt, 416, 240);
+}
+
+static int wave5_vpu_enc_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
+{
+	return wave5_vpu_queue_init(priv, src_vq, dst_vq, &wave5_vpu_enc_vb2_ops);
+}
+
+static const struct vpu_instance_ops wave5_vpu_enc_inst_ops = {
+	.finish_process = wave5_vpu_enc_finish_encode,
+};
+
+static void wave5_vpu_enc_device_run(void *priv)
+{
+	struct vpu_instance *inst = priv;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+	u32 fail_res = 0;
+	int ret = 0;
+
+	switch (inst->state) {
+	case VPU_INST_STATE_PIC_RUN:
+		ret = start_encode(inst, &fail_res);
+		if (ret) {
+			if (ret == -EINVAL)
+				dev_err(inst->dev->dev,
+					"Frame encoding on m2m context (%p), fail: %d (res: %d)\n",
+					m2m_ctx, ret, fail_res);
+			else if (ret == -EAGAIN)
+				dev_dbg(inst->dev->dev, "Missing buffers for encode, try again\n");
+			break;
+		}
+		dev_dbg(inst->dev->dev, "%s: leave with active job", __func__);
+		return;
+	default:
+		WARN(1, "Execution of a job in state %s is invalid.\n",
+		     state_to_str(inst->state));
+		break;
+	}
+	dev_dbg(inst->dev->dev, "%s: leave and finish job", __func__);
+	v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+}
+
+static int wave5_vpu_enc_job_ready(void *priv)
+{
+	struct vpu_instance *inst = priv;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+
+	switch (inst->state) {
+	case VPU_INST_STATE_NONE:
+		dev_dbg(inst->dev->dev, "Encoder must be open to start queueing M2M jobs!\n");
+		return false;
+	case VPU_INST_STATE_PIC_RUN:
+		if (m2m_ctx->is_draining || v4l2_m2m_num_src_bufs_ready(m2m_ctx)) {
+			dev_dbg(inst->dev->dev, "Encoder ready for a job, state: %s\n",
+				state_to_str(inst->state));
+			return true;
+		}
+		fallthrough;
+	default:
+		dev_dbg(inst->dev->dev,
+			"Encoder not ready for a job, state: %s, %s draining, %d src bufs ready\n",
+			state_to_str(inst->state), m2m_ctx->is_draining ? "is" : "is not",
+			v4l2_m2m_num_src_bufs_ready(m2m_ctx));
+		break;
+	}
+	return false;
+}
+
+static const struct v4l2_m2m_ops wave5_vpu_enc_m2m_ops = {
+	.device_run = wave5_vpu_enc_device_run,
+	.job_ready = wave5_vpu_enc_job_ready,
+};
+
+static int wave5_vpu_open_enc(struct file *filp)
+{
+	struct video_device *vdev = video_devdata(filp);
+	struct vpu_device *dev = video_drvdata(filp);
+	struct vpu_instance *inst = NULL;
+	struct v4l2_ctrl_handler *v4l2_ctrl_hdl;
+	int ret = 0;
+
+	inst = kzalloc(sizeof(*inst), GFP_KERNEL);
+	if (!inst)
+		return -ENOMEM;
+	v4l2_ctrl_hdl = &inst->v4l2_ctrl_hdl;
+
+	inst->dev = dev;
+	inst->type = VPU_INST_TYPE_ENC;
+	inst->ops = &wave5_vpu_enc_inst_ops;
+
+	inst->codec_info = kzalloc(sizeof(*inst->codec_info), GFP_KERNEL);
+	if (!inst->codec_info)
+		return -ENOMEM;
+
+	v4l2_fh_init(&inst->v4l2_fh, vdev);
+	filp->private_data = &inst->v4l2_fh;
+	v4l2_fh_add(&inst->v4l2_fh);
+
+	INIT_LIST_HEAD(&inst->list);
+	list_add_tail(&inst->list, &dev->instances);
+
+	inst->v4l2_m2m_dev = inst->dev->v4l2_m2m_enc_dev;
+	inst->v4l2_fh.m2m_ctx =
+		v4l2_m2m_ctx_init(inst->v4l2_m2m_dev, inst, wave5_vpu_enc_queue_init);
+	if (IS_ERR(inst->v4l2_fh.m2m_ctx)) {
+		ret = PTR_ERR(inst->v4l2_fh.m2m_ctx);
+		goto cleanup_inst;
+	}
+	v4l2_m2m_set_src_buffered(inst->v4l2_fh.m2m_ctx, true);
+
+	v4l2_ctrl_handler_init(v4l2_ctrl_hdl, 50);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_HEVC_PROFILE,
+			       V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10, 0,
+			       V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_HEVC_LEVEL,
+			       V4L2_MPEG_VIDEO_HEVC_LEVEL_5_1, 0,
+			       V4L2_MPEG_VIDEO_HEVC_LEVEL_1);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP,
+			  0, 63, 1, 8);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP,
+			  0, 63, 1, 51);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_QP,
+			  0, 63, 1, 30);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE,
+			       V4L2_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY, 0,
+			       V4L2_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE_ENABLED);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_LF_BETA_OFFSET_DIV2,
+			  -6, 6, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_LF_TC_OFFSET_DIV2,
+			  -6, 6, 1, 0);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_TYPE,
+			       V4L2_MPEG_VIDEO_HEVC_REFRESH_IDR, 0,
+			       V4L2_MPEG_VIDEO_HEVC_REFRESH_IDR);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_PERIOD,
+			  0, 2047, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_LOSSLESS_CU,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_CONST_INTRA_PRED,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_WAVEFRONT,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_STRONG_SMOOTHING,
+			  0, 1, 1, 1);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_MAX_NUM_MERGE_MV_MINUS1,
+			  1, 2, 1, 2);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_HEVC_TMV_PREDICTION,
+			  0, 1, 1, 1);
+
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_H264_PROFILE,
+			       V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE, 0,
+			       V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_H264_LEVEL,
+			       V4L2_MPEG_VIDEO_H264_LEVEL_5_1, 0,
+			       V4L2_MPEG_VIDEO_H264_LEVEL_1_0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_MIN_QP,
+			  0, 63, 1, 8);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_MAX_QP,
+			  0, 63, 1, 51);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP,
+			  0, 63, 1, 30);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
+			       V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY, 0,
+			       V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA,
+			  -6, 6, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA,
+			  -6, 6, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM,
+			  0, 1, 1, 1);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET,
+			  -12, 12, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_H264_I_PERIOD,
+			  0, 2047, 1, 0);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE,
+			       V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC, 0,
+			       V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_AU_DELIMITER,
+			  0, 1, 1, 1);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_HFLIP,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_VFLIP,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_ROTATE,
+			  0, 270, 90, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_VBV_SIZE,
+			  10, 3000, 1, 1000);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
+			       V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
+			       V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_BITRATE,
+			  0, 700000000, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_GOP_SIZE,
+			  0, 2047, 1, 0);
+	v4l2_ctrl_new_std_menu(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			       V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
+			       V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_MB, 0,
+			       V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB,
+			  0, 0xFFFF, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE,
+			  0, 1, 1, 0);
+	v4l2_ctrl_new_std(v4l2_ctrl_hdl, &wave5_vpu_enc_ctrl_ops,
+			  V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 1, 32, 1, 1);
+
+	if (v4l2_ctrl_hdl->error) {
+		ret = -ENODEV;
+		goto cleanup_inst;
+	}
+
+	inst->v4l2_fh.ctrl_handler = v4l2_ctrl_hdl;
+	v4l2_ctrl_handler_setup(v4l2_ctrl_hdl);
+
+	wave5_set_default_format(&inst->src_fmt, &inst->dst_fmt);
+	inst->colorspace = V4L2_COLORSPACE_REC709;
+	inst->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+	inst->quantization = V4L2_QUANTIZATION_DEFAULT;
+	inst->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+	inst->frame_rate = 30;
+
+	init_completion(&inst->irq_done);
+
+	inst->id = ida_alloc(&inst->dev->inst_ida, GFP_KERNEL);
+	if (inst->id < 0) {
+		dev_warn(inst->dev->dev, "Allocating instance ID, fail: %d\n", inst->id);
+		ret = inst->id;
+		goto cleanup_inst;
+	}
+
+	wave5_vdi_allocate_sram(inst->dev);
+
+	return 0;
+
+cleanup_inst:
+	wave5_cleanup_instance(inst);
+	return ret;
+}
+
+static int wave5_vpu_enc_release(struct file *filp)
+{
+	return wave5_vpu_release_device(filp, wave5_vpu_enc_close, "encoder");
+}
+
+static const struct v4l2_file_operations wave5_vpu_enc_fops = {
+	.owner = THIS_MODULE,
+	.open = wave5_vpu_open_enc,
+	.release = wave5_vpu_enc_release,
+	.unlocked_ioctl = video_ioctl2,
+	.poll = v4l2_m2m_fop_poll,
+	.mmap = v4l2_m2m_fop_mmap,
+};
+
+int wave5_vpu_enc_register_device(struct vpu_device *dev)
+{
+	struct video_device *vdev_enc;
+	int ret;
+
+	vdev_enc = devm_kzalloc(dev->v4l2_dev.dev, sizeof(*vdev_enc), GFP_KERNEL);
+	if (!vdev_enc)
+		return -ENOMEM;
+
+	dev->v4l2_m2m_enc_dev = v4l2_m2m_init(&wave5_vpu_enc_m2m_ops);
+	if (IS_ERR(dev->v4l2_m2m_enc_dev)) {
+		ret = PTR_ERR(dev->v4l2_m2m_enc_dev);
+		dev_err(dev->dev, "v4l2_m2m_init, fail: %d\n", ret);
+		return -EINVAL;
+	}
+
+	dev->video_dev_enc = vdev_enc;
+
+	strscpy(vdev_enc->name, VPU_ENC_DEV_NAME, sizeof(vdev_enc->name));
+	vdev_enc->fops = &wave5_vpu_enc_fops;
+	vdev_enc->ioctl_ops = &wave5_vpu_enc_ioctl_ops;
+	vdev_enc->release = video_device_release_empty;
+	vdev_enc->v4l2_dev = &dev->v4l2_dev;
+	vdev_enc->vfl_dir = VFL_DIR_M2M;
+	vdev_enc->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
+	vdev_enc->lock = &dev->dev_lock;
+
+	ret = video_register_device(vdev_enc, VFL_TYPE_VIDEO, -1);
+	if (ret)
+		return ret;
+
+	video_set_drvdata(vdev_enc, dev);
+
+	return 0;
+}
+
+void wave5_vpu_enc_unregister_device(struct vpu_device *dev)
+{
+	video_unregister_device(dev->video_dev_enc);
+	if (dev->v4l2_m2m_enc_dev)
+		v4l2_m2m_release(dev->v4l2_m2m_enc_dev);
+}

drivers/media/platform/chips-media/wave5/wave5-vpu.c

+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Wave5 series multi-standard codec IP - platform driver
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include "wave5-vpu.h"
+#include "wave5-regdefine.h"
+#include "wave5-vpuconfig.h"
+#include "wave5.h"
+
+#define VPU_PLATFORM_DEVICE_NAME "vdec"
+#define VPU_CLK_NAME "vcodec"
+
+#define WAVE5_IS_ENC BIT(0)
+#define WAVE5_IS_DEC BIT(1)
+
+struct wave5_match_data {
+	int flags;
+	const char *fw_name;
+};
+
+int wave5_vpu_wait_interrupt(struct vpu_instance *inst, unsigned int timeout)
+{
+	int ret;
+
+	ret = wait_for_completion_timeout(&inst->irq_done,
+					  msecs_to_jiffies(timeout));
+	if (!ret)
+		return -ETIMEDOUT;
+
+	reinit_completion(&inst->irq_done);
+
+	return 0;
+}
+
+static irqreturn_t wave5_vpu_irq_thread(int irq, void *dev_id)
+{
+	u32 seq_done;
+	u32 cmd_done;
+	u32 irq_reason;
+	struct vpu_instance *inst;
+	struct vpu_device *dev = dev_id;
+
+	if (wave5_vdi_read_register(dev, W5_VPU_VPU_INT_STS)) {
+		irq_reason = wave5_vdi_read_register(dev, W5_VPU_VINT_REASON);
+		wave5_vdi_write_register(dev, W5_VPU_VINT_REASON_CLR, irq_reason);
+		wave5_vdi_write_register(dev, W5_VPU_VINT_CLEAR, 0x1);
+
+		list_for_each_entry(inst, &dev->instances, list) {
+			seq_done = wave5_vdi_read_register(dev, W5_RET_SEQ_DONE_INSTANCE_INFO);
+			cmd_done = wave5_vdi_read_register(dev, W5_RET_QUEUE_CMD_DONE_INST);
+
+			if (irq_reason & BIT(INT_WAVE5_INIT_SEQ) ||
+			    irq_reason & BIT(INT_WAVE5_ENC_SET_PARAM)) {
+				if (seq_done & BIT(inst->id)) {
+					seq_done &= ~BIT(inst->id);
+					wave5_vdi_write_register(dev, W5_RET_SEQ_DONE_INSTANCE_INFO,
+								 seq_done);
+					complete(&inst->irq_done);
+				}
+			}
+
+			if (irq_reason & BIT(INT_WAVE5_DEC_PIC) ||
+			    irq_reason & BIT(INT_WAVE5_ENC_PIC)) {
+				if (cmd_done & BIT(inst->id)) {
+					cmd_done &= ~BIT(inst->id);
+					wave5_vdi_write_register(dev, W5_RET_QUEUE_CMD_DONE_INST,
+								 cmd_done);
+					inst->ops->finish_process(inst);
+				}
+			}
+
+			wave5_vpu_clear_interrupt(inst, irq_reason);
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int wave5_vpu_load_firmware(struct device *dev, const char *fw_name,
+				   u32 *revision)
+{
+	const struct firmware *fw;
+	int ret;
+	unsigned int product_id;
+
+	ret = request_firmware(&fw, fw_name, dev);
+	if (ret) {
+		dev_err(dev, "request_firmware, fail: %d\n", ret);
+		return ret;
+	}
+
+	ret = wave5_vpu_init_with_bitcode(dev, (u8 *)fw->data, fw->size);
+	if (ret) {
+		dev_err(dev, "vpu_init_with_bitcode, fail: %d\n", ret);
+		release_firmware(fw);
+		return ret;
+	}
+	release_firmware(fw);
+
+	ret = wave5_vpu_get_version_info(dev, revision, &product_id);
+	if (ret) {
+		dev_err(dev, "vpu_get_version_info fail: %d\n", ret);
+		return ret;
+	}
+
+	dev_dbg(dev, "%s: enum product_id: %08x, fw revision: %u\n",
+		__func__, product_id, *revision);
+
+	return 0;
+}
+
+static int wave5_vpu_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct vpu_device *dev;
+	const struct wave5_match_data *match_data;
+	u32 fw_revision;
+
+	match_data = device_get_match_data(&pdev->dev);
+	if (!match_data) {
+		dev_err(&pdev->dev, "missing device match data\n");
+		return -EINVAL;
+	}
+
+	/* physical addresses limited to 32 bits */
+	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to set DMA mask: %d\n", ret);
+		return ret;
+	}
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->vdb_register = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(dev->vdb_register))
+		return PTR_ERR(dev->vdb_register);
+	ida_init(&dev->inst_ida);
+
+	mutex_init(&dev->dev_lock);
+	mutex_init(&dev->hw_lock);
+	dev_set_drvdata(&pdev->dev, dev);
+	dev->dev = &pdev->dev;
+
+	ret = devm_clk_bulk_get_all(&pdev->dev, &dev->clks);
+
+	/* continue without clock, assume externally managed */
+	if (ret < 0) {
+		dev_warn(&pdev->dev, "Getting clocks, fail: %d\n", ret);
+		ret = 0;
+	}
+	dev->num_clks = ret;
+
+	ret = clk_bulk_prepare_enable(dev->num_clks, dev->clks);
+	if (ret) {
+		dev_err(&pdev->dev, "Enabling clocks, fail: %d\n", ret);
+		return ret;
+	}
+
+	ret = of_property_read_u32(pdev->dev.of_node, "sram-size",
+				   &dev->sram_size);
+	if (ret) {
+		dev_warn(&pdev->dev, "sram-size not found\n");
+		dev->sram_size = 0;
+	}
+
+	dev->sram_pool = of_gen_pool_get(pdev->dev.of_node, "sram", 0);
+	if (!dev->sram_pool)
+		dev_warn(&pdev->dev, "sram node not found\n");
+
+	dev->product_code = wave5_vdi_read_register(dev, VPU_PRODUCT_CODE_REGISTER);
+	ret = wave5_vdi_init(&pdev->dev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "wave5_vdi_init, fail: %d\n", ret);
+		goto err_clk_dis;
+	}
+	dev->product = wave5_vpu_get_product_id(dev);
+
+	INIT_LIST_HEAD(&dev->instances);
+	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "v4l2_device_register, fail: %d\n", ret);
+		goto err_vdi_release;
+	}
+
+	if (match_data->flags & WAVE5_IS_DEC) {
+		ret = wave5_vpu_dec_register_device(dev);
+		if (ret) {
+			dev_err(&pdev->dev, "wave5_vpu_dec_register_device, fail: %d\n", ret);
+			goto err_v4l2_unregister;
+		}
+	}
+	if (match_data->flags & WAVE5_IS_ENC) {
+		ret = wave5_vpu_enc_register_device(dev);
+		if (ret) {
+			dev_err(&pdev->dev, "wave5_vpu_enc_register_device, fail: %d\n", ret);
+			goto err_dec_unreg;
+		}
+	}
+
+	dev->irq = platform_get_irq(pdev, 0);
+	if (dev->irq < 0) {
+		dev_err(&pdev->dev, "failed to get irq resource\n");
+		ret = -ENXIO;
+		goto err_enc_unreg;
+	}
+
+	ret = devm_request_threaded_irq(&pdev->dev, dev->irq, NULL,
+					wave5_vpu_irq_thread, IRQF_ONESHOT, "vpu_irq", dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Register interrupt handler, fail: %d\n", ret);
+		goto err_enc_unreg;
+	}
+
+	ret = wave5_vpu_load_firmware(&pdev->dev, match_data->fw_name, &fw_revision);
+	if (ret) {
+		dev_err(&pdev->dev, "wave5_vpu_load_firmware, fail: %d\n", ret);
+		goto err_enc_unreg;
+	}
+
+	dev_info(&pdev->dev, "Added wave5 driver with caps: %s %s\n",
+		 (match_data->flags & WAVE5_IS_ENC) ? "'ENCODE'" : "",
+		 (match_data->flags & WAVE5_IS_DEC) ? "'DECODE'" : "");
+	dev_info(&pdev->dev, "Product Code:      0x%x\n", dev->product_code);
+	dev_info(&pdev->dev, "Firmware Revision: %u\n", fw_revision);
+	return 0;
+
+err_enc_unreg:
+	if (match_data->flags & WAVE5_IS_ENC)
+		wave5_vpu_enc_unregister_device(dev);
+err_dec_unreg:
+	if (match_data->flags & WAVE5_IS_DEC)
+		wave5_vpu_dec_unregister_device(dev);
+err_v4l2_unregister:
+	v4l2_device_unregister(&dev->v4l2_dev);
+err_vdi_release:
+	wave5_vdi_release(&pdev->dev);
+err_clk_dis:
+	clk_bulk_disable_unprepare(dev->num_clks, dev->clks);
+
+	return ret;
+}
+
+static int wave5_vpu_remove(struct platform_device *pdev)
+{
+	struct vpu_device *dev = dev_get_drvdata(&pdev->dev);
+
+	mutex_destroy(&dev->dev_lock);
+	mutex_destroy(&dev->hw_lock);
+	clk_bulk_disable_unprepare(dev->num_clks, dev->clks);
+	wave5_vpu_enc_unregister_device(dev);
+	wave5_vpu_dec_unregister_device(dev);
+	v4l2_device_unregister(&dev->v4l2_dev);
+	wave5_vdi_release(&pdev->dev);
+	ida_destroy(&dev->inst_ida);
+
+	return 0;
+}
+
+static const struct wave5_match_data ti_wave521c_data = {
+	.flags = WAVE5_IS_ENC | WAVE5_IS_DEC,
+	.fw_name = "cnm/wave521c_k3_codec_fw.bin",
+};
+
+static const struct of_device_id wave5_dt_ids[] = {
+	{ .compatible = "ti,k3-j721s2-wave521c", .data = &ti_wave521c_data },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, wave5_dt_ids);
+
+static struct platform_driver wave5_vpu_driver = {
+	.driver = {
+		.name = VPU_PLATFORM_DEVICE_NAME,
+		.of_match_table = of_match_ptr(wave5_dt_ids),
+		},
+	.probe = wave5_vpu_probe,
+	.remove = wave5_vpu_remove,
+};
+
+module_platform_driver(wave5_vpu_driver);
+MODULE_DESCRIPTION("chips&media VPU V4L2 driver");
+MODULE_LICENSE("Dual BSD/GPL");

drivers/media/platform/chips-media/wave5/wave5-vpu.h

+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Wave5 series multi-standard codec IP - basic types
+ *
+ * Copyright (C) 2021-2023 CHIPS&MEDIA INC
+ */
+#ifndef __VPU_DRV_H__
+#define __VPU_DRV_H__
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-fh.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-dma-contig.h>
+#include <media/videobuf2-vmalloc.h>
+#include "wave5-vpuconfig.h"
+#include "wave5-vpuapi.h"
+
+#define VPU_BUF_SYNC_TO_DEVICE 0
+#define VPU_BUF_SYNC_FROM_DEVICE 1
+
+struct vpu_src_buffer {
+	struct v4l2_m2m_buffer	v4l2_m2m_buf;
+	struct list_head	list;
+	bool			consumed;
+};
+
+struct vpu_dst_buffer {
+	struct v4l2_m2m_buffer v4l2_m2m_buf;
+	bool                   display;
+};
+
+enum vpu_fmt_type {
+	VPU_FMT_TYPE_CODEC = 0,
+	VPU_FMT_TYPE_RAW   = 1
+};
+
+struct vpu_format {
+	unsigned int v4l2_pix_fmt;
+	unsigned int max_width;
+	unsigned int min_width;
+	unsigned int max_height;
+	unsigned int min_height;
+};
+
+static inline struct vpu_instance *wave5_to_vpu_inst(struct v4l2_fh *vfh)
+{
+	return container_of(vfh, struct vpu_instance, v4l2_fh);
+}
+
+static inline struct vpu_instance *wave5_ctrl_to_vpu_inst(struct v4l2_ctrl *vctrl)
+{
+	return container_of(vctrl->handler, struct vpu_instance, v4l2_ctrl_hdl);
+}
+
+static inline struct vpu_src_buffer *wave5_to_vpu_src_buf(struct vb2_v4l2_buffer *vbuf)
+{
+	return container_of(vbuf, struct vpu_src_buffer, v4l2_m2m_buf.vb);
+}
+
+static inline struct vpu_dst_buffer *wave5_to_vpu_dst_buf(struct vb2_v4l2_buffer *vbuf)
+{
+	return container_of(vbuf, struct vpu_dst_buffer, v4l2_m2m_buf.vb);
+}
+
+int wave5_vpu_wait_interrupt(struct vpu_instance *inst, unsigned int timeout);
+
+int  wave5_vpu_dec_register_device(struct vpu_device *dev);
+void wave5_vpu_dec_unregister_device(struct vpu_device *dev);
+int  wave5_vpu_enc_register_device(struct vpu_device *dev);
+void wave5_vpu_enc_unregister_device(struct vpu_device *dev);
+static inline bool wave5_vpu_both_queues_are_streaming(struct vpu_instance *inst)
+{
+	struct vb2_queue *vq_cap =
+		v4l2_m2m_get_vq(inst->v4l2_fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+	struct vb2_queue *vq_out =
+		v4l2_m2m_get_vq(inst->v4l2_fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+
+	return vb2_is_streaming(vq_cap) && vb2_is_streaming(vq_out);
+}
+
+#endif