Merge tag 'media/v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - the old V4L2 core videobuf kAPI was finally removed. All media
   drivers should now be using VB2 kAPI

 - new automotive driver: mgb4

 - new platform video driver: npcm-video

 - new sensor driver: mt9m114

 - new TI driver used in conjunction with Cadence CSI2RX IP to bridge
   TI-specific parts

 - ir-rx51 was removed and the N900 DT binding was moved to the
   pwm-ir-tx generic driver

 - drop atomisp-specific ov5693, using the upstream driver instead

 - the camss driver has gained RDI3 support for VFE 17x

 - the atomisp driver now detects ISP2400 or ISP2401 at run time. No
   need to set it up at build time anymore

 - lots of driver fixes, cleanups and improvements

* tag 'media/v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (377 commits)
  media: nuvoton: VIDEO_NPCM_VCD_ECE should depend on ARCH_NPCM
  media: venus: Fix firmware path for resources
  media: venus: hfi_cmds: Replace one-element array with flex-array member and use __counted_by
  media: venus: hfi_parser: Add check to keep the number of codecs within range
  media: venus: hfi: add checks to handle capabilities from firmware
  media: venus: hfi: fix the check to handle session buffer requirement
  media: venus: hfi: add checks to perform sanity on queue pointers
  media: platform: cadence: select MIPI_DPHY dependency
  media: MAINTAINERS: Fix path for J721E CSI2RX bindings
  media: cec: meson: always include meson sub-directory in Makefile
  media: videobuf2: Fix IS_ERR checking in vb2_dc_put_userptr()
  media: platform: mtk-mdp3: fix uninitialized variable in mdp_path_config()
  media: mediatek: vcodec: using encoder device to alloc/free encoder memory
  media: imx-jpeg: notify source chagne event when the first picture parsed
  media: cx231xx: Use EP5_BUF_SIZE macro
  media: siano: Drop unnecessary error check for debugfs_create_dir/file()
  media: mediatek: vcodec: Handle invalid encoder vsi
  media: aspeed: Drop unnecessary error check for debugfs_create_file()
  Documentation: media: buffer.rst: fix V4L2_BUF_FLAG_PREPARED
  Documentation: media: gen-errors.rst: fix confusing ENOTTY description
  ...

16 files changed, 131 insertions, 423 deletions

diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index ab721cf13a98..7dae17b62a4d 100644
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -4436,8 +4436,20 @@ struct ec_response_i2c_passthru_protect {
  * These commands are for sending and receiving message via HDMI CEC
  */
 
+#define EC_CEC_MAX_PORTS 16
+
 #define MAX_CEC_MSG_LEN 16
 
+/*
+ * Helper macros for packing/unpacking cec_events.
+ * bits[27:0] : bitmask of events from enum mkbp_cec_event
+ * bits[31:28]: port number
+ */
+#define EC_MKBP_EVENT_CEC_PACK(events, port) \
+		(((events) & GENMASK(27, 0)) | (((port) & 0xf) << 28))
+#define EC_MKBP_EVENT_CEC_GET_EVENTS(event) ((event) & GENMASK(27, 0))
+#define EC_MKBP_EVENT_CEC_GET_PORT(event) (((event) >> 28) & 0xf)
+
 /* CEC message from the AP to be written on the CEC bus */
 #define EC_CMD_CEC_WRITE_MSG 0x00B8
 
@@ -4449,19 +4461,54 @@ struct ec_params_cec_write {
 	uint8_t msg[MAX_CEC_MSG_LEN];
 } __ec_align1;
 
+/**
+ * struct ec_params_cec_write_v1 - Message to write to the CEC bus
+ * @port: CEC port to write the message on
+ * @msg_len: length of msg in bytes
+ * @msg: message content to write to the CEC bus
+ */
+struct ec_params_cec_write_v1 {
+	uint8_t port;
+	uint8_t msg_len;
+	uint8_t msg[MAX_CEC_MSG_LEN];
+} __ec_align1;
+
+/* CEC message read from a CEC bus reported back to the AP */
+#define EC_CMD_CEC_READ_MSG 0x00B9
+
+/**
+ * struct ec_params_cec_read - Read a message from the CEC bus
+ * @port: CEC port to read a message on
+ */
+struct ec_params_cec_read {
+	uint8_t port;
+} __ec_align1;
+
+/**
+ * struct ec_response_cec_read - Message read from the CEC bus
+ * @msg_len: length of msg in bytes
+ * @msg: message content read from the CEC bus
+ */
+struct ec_response_cec_read {
+	uint8_t msg_len;
+	uint8_t msg[MAX_CEC_MSG_LEN];
+} __ec_align1;
+
 /* Set various CEC parameters */
 #define EC_CMD_CEC_SET 0x00BA
 
 /**
  * struct ec_params_cec_set - CEC parameters set
  * @cmd: parameter type, can be CEC_CMD_ENABLE or CEC_CMD_LOGICAL_ADDRESS
+ * @port: CEC port to set the parameter on
  * @val: in case cmd is CEC_CMD_ENABLE, this field can be 0 to disable CEC
  *	or 1 to enable CEC functionality, in case cmd is
  *	CEC_CMD_LOGICAL_ADDRESS, this field encodes the requested logical
  *	address between 0 and 15 or 0xff to unregister
  */
 struct ec_params_cec_set {
-	uint8_t cmd; /* enum cec_command */
+	uint8_t cmd : 4; /* enum cec_command */
+	uint8_t port : 4;
 	uint8_t val;
 } __ec_align1;
 
@@ -4471,9 +4518,11 @@ struct ec_params_cec_set {
 /**
  * struct ec_params_cec_get - CEC parameters get
  * @cmd: parameter type, can be CEC_CMD_ENABLE or CEC_CMD_LOGICAL_ADDRESS
+ * @port: CEC port to get the parameter on
  */
 struct ec_params_cec_get {
-	uint8_t cmd; /* enum cec_command */
+	uint8_t cmd : 4; /* enum cec_command */
+	uint8_t port : 4;
 } __ec_align1;
 
 /**
@@ -4487,6 +4536,17 @@ struct ec_response_cec_get {
 	uint8_t val;
 } __ec_align1;
 
+/* Get the number of CEC ports */
+#define EC_CMD_CEC_PORT_COUNT 0x00C1
+
+/**
+ * struct ec_response_cec_port_count - CEC port count response
+ * @port_count: number of CEC ports
+ */
+struct ec_response_cec_port_count {
+	uint8_t port_count;
+} __ec_align1;
+
 /* CEC parameters command */
 enum cec_command {
 	/* CEC reading, writing and events enable */
@@ -4501,6 +4561,8 @@ enum mkbp_cec_event {
 	EC_MKBP_CEC_SEND_OK			= BIT(0),
 	/* Outgoing message was not acknowledged */
 	EC_MKBP_CEC_SEND_FAILED			= BIT(1),
+	/* Incoming message can be read out by AP */
+	EC_MKBP_CEC_HAVE_DATA			= BIT(2),
 };
 
 /*****************************************************************************/
diff --git a/include/media/cec.h b/include/media/cec.h
index 9c007f83569a..53e4b2eb2b26 100644
--- a/include/media/cec.h
+++ b/include/media/cec.h
@@ -275,7 +275,7 @@ struct cec_adapter {
 
 	u32 sequence;
 
-	char input_phys[32];
+	char input_phys[40];
 };
 
 static inline void *cec_get_drvdata(const struct cec_adapter *adap)
diff --git a/include/media/ipu-bridge.h b/include/media/ipu-bridge.h
index bdc654a45521..783bda6d5cc3 100644
--- a/include/media/ipu-bridge.h
+++ b/include/media/ipu-bridge.h
@@ -108,7 +108,7 @@ struct ipu_node_names {
 	char ivsc_sensor_port[7];
 	char ivsc_ipu_port[7];
 	char endpoint[11];
-	char remote_port[7];
+	char remote_port[9];
 	char vcm[16];
 };
 
diff --git a/include/media/mipi-csi2.h b/include/media/mipi-csi2.h
index c3d8f12234b1..40fc0264250d 100644
--- a/include/media/mipi-csi2.h
+++ b/include/media/mipi-csi2.h
@@ -19,6 +19,7 @@
 #define MIPI_CSI2_DT_NULL		0x10
 #define MIPI_CSI2_DT_BLANKING		0x11
 #define MIPI_CSI2_DT_EMBEDDED_8B	0x12
+#define MIPI_CSI2_DT_GENERIC_LONG(n)	(0x13 + (n) - 1)	/* 1..4 */
 #define MIPI_CSI2_DT_YUV420_8B		0x18
 #define MIPI_CSI2_DT_YUV420_10B		0x19
 #define MIPI_CSI2_DT_YUV420_8B_LEGACY	0x1a
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index e0a13505f88d..d82dfdbf6e58 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -284,7 +284,7 @@ struct video_device {
 	struct v4l2_prio_state *prio;
 
 	/* device info */
-	char name[32];
+	char name[64];
 	enum vfl_devnode_type vfl_type;
 	enum vfl_devnode_direction vfl_dir;
 	int minor;
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 8a8977a33ec1..f6f111fae33c 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -13,8 +13,6 @@
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-dev.h>
 
-#define V4L2_DEVICE_NAME_SIZE (20 + 16)
-
 struct v4l2_ctrl_handler;
 
 /**
@@ -49,7 +47,7 @@ struct v4l2_device {
 	struct media_device *mdev;
 	struct list_head subdevs;
 	spinlock_t lock;
-	char name[V4L2_DEVICE_NAME_SIZE];
+	char name[36];
 	void (*notify)(struct v4l2_subdev *sd,
 			unsigned int notification, void *arg);
 	struct v4l2_ctrl_handler *ctrl_handler;
diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h
index 4ffa914ade3a..3a0e2588361c 100644
--- a/include/media/v4l2-event.h
+++ b/include/media/v4l2-event.h
@@ -78,7 +78,7 @@ struct v4l2_subscribed_event {
 	unsigned int		elems;
 	unsigned int		first;
 	unsigned int		in_use;
-	struct v4l2_kevent	events[];
+	struct v4l2_kevent	events[] __counted_by(elems);
 };
 
 /**
diff --git a/include/media/v4l2-mc.h b/include/media/v4l2-mc.h
index b39586dfba35..ed0a44b6eada 100644
--- a/include/media/v4l2-mc.h
+++ b/include/media/v4l2-mc.h
@@ -143,6 +143,9 @@ int v4l2_create_fwnode_links(struct v4l2_subdev *src_sd,
  * v4l2_pipeline_pm_get - Increase the use count of a pipeline
  * @entity: The root entity of a pipeline
  *
+ * THIS FUNCTION IS DEPRECATED. DO NOT USE IN NEW DRIVERS. USE RUNTIME PM
+ * ON SUB-DEVICE DRIVERS INSTEAD.
+ *
  * Update the use count of all entities in the pipeline and power entities on.
  *
  * This function is intended to be called in video node open. It uses
@@ -157,6 +160,9 @@ int v4l2_pipeline_pm_get(struct media_entity *entity);
  * v4l2_pipeline_pm_put - Decrease the use count of a pipeline
  * @entity: The root entity of a pipeline
  *
+ * THIS FUNCTION IS DEPRECATED. DO NOT USE IN NEW DRIVERS. USE RUNTIME PM
+ * ON SUB-DEVICE DRIVERS INSTEAD.
+ *
  * Update the use count of all entities in the pipeline and power entities off.
  *
  * This function is intended to be called in video node release. It uses
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index d9fca929c10b..c1f90c1223a7 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -446,7 +446,9 @@ enum v4l2_subdev_pre_streamon_flags {
  * @s_stream: start (enabled == 1) or stop (enabled == 0) streaming on the
  *	sub-device. Failure on stop will remove any resources acquired in
  *	streaming start, while the error code is still returned by the driver.
- *	Also see call_s_stream wrapper in v4l2-subdev.c.
+ *	The caller shall track the subdev state, and shall not start or stop an
+ *	already started or stopped subdev. Also see call_s_stream wrapper in
+ *	v4l2-subdev.c.
  *
  * @g_pixelaspect: callback to return the pixelaspect ratio.
  *
@@ -822,8 +824,9 @@ struct v4l2_subdev_state {
  *		     operation shall fail if the pad index it has been called on
  *		     is not valid or in case of unrecoverable failures.
  *
- * @set_routing: enable or disable data connection routes described in the
- *		 subdevice routing table.
+ * @set_routing: Enable or disable data connection routes described in the
+ *		 subdevice routing table. Subdevs that implement this operation
+ *		 must set the V4L2_SUBDEV_FL_STREAMS flag.
  *
  * @enable_streams: Enable the streams defined in streams_mask on the given
  *	source pad. Subdevs that implement this operation must use the active
@@ -948,8 +951,6 @@ struct v4l2_subdev_internal_ops {
 	void (*release)(struct v4l2_subdev *sd);
 };
 
-#define V4L2_SUBDEV_NAME_SIZE 32
-
 /* Set this flag if this subdev is a i2c device. */
 #define V4L2_SUBDEV_FL_IS_I2C			(1U << 0)
 /* Set this flag if this subdev is a spi device. */
@@ -1059,7 +1060,7 @@ struct v4l2_subdev {
 	const struct v4l2_subdev_ops *ops;
 	const struct v4l2_subdev_internal_ops *internal_ops;
 	struct v4l2_ctrl_handler *ctrl_handler;
-	char name[V4L2_SUBDEV_NAME_SIZE];
+	char name[52];
 	u32 grp_id;
 	void *dev_priv;
 	void *host_priv;
diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h
deleted file mode 100644
index 2e01b2e9a1c0..000000000000
--- a/include/media/videobuf-core.h
+++ /dev/null
@@ -1,233 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * generic helper functions for handling video4linux capture buffers
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
- *
- * Highly based on video-buf written originally by:
- * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org>
- * (c) 2006 Mauro Carvalho Chehab, <mchehab@kernel.org>
- * (c) 2006 Ted Walther and John Sokol
- */
-
-#ifndef _VIDEOBUF_CORE_H
-#define _VIDEOBUF_CORE_H
-
-#include <linux/poll.h>
-#include <linux/videodev2.h>
-
-#define UNSET (-1U)
-
-
-struct videobuf_buffer;
-struct videobuf_queue;
-
-/* --------------------------------------------------------------------- */
-
-/*
- * A small set of helper functions to manage video4linux buffers.
- *
- * struct videobuf_buffer holds the data structures used by the helper
- * functions, additionally some commonly used fields for v4l buffers
- * (width, height, lists, waitqueue) are in there.  That struct should
- * be used as first element in the drivers buffer struct.
- *
- * about the mmap helpers (videobuf_mmap_*):
- *
- * The mmaper function allows to map any subset of contiguous buffers.
- * This includes one mmap() call for all buffers (which the original
- * video4linux API uses) as well as one mmap() for every single buffer
- * (which v4l2 uses).
- *
- * If there is a valid mapping for a buffer, buffer->baddr/bsize holds
- * userspace address + size which can be fed into the
- * videobuf_dma_init_user function listed above.
- *
- */
-
-struct videobuf_mapping {
-	unsigned int count;
-	struct videobuf_queue *q;
-};
-
-enum videobuf_state {
-	VIDEOBUF_NEEDS_INIT = 0,
-	VIDEOBUF_PREPARED   = 1,
-	VIDEOBUF_QUEUED     = 2,
-	VIDEOBUF_ACTIVE     = 3,
-	VIDEOBUF_DONE       = 4,
-	VIDEOBUF_ERROR      = 5,
-	VIDEOBUF_IDLE       = 6,
-};
-
-struct videobuf_buffer {
-	unsigned int            i;
-	u32                     magic;
-
-	/* info about the buffer */
-	unsigned int            width;
-	unsigned int            height;
-	unsigned int            bytesperline; /* use only if != 0 */
-	unsigned long           size;
-	enum v4l2_field         field;
-	enum videobuf_state     state;
-	struct list_head        stream;  /* QBUF/DQBUF list */
-
-	/* touched by irq handler */
-	struct list_head        queue;
-	wait_queue_head_t       done;
-	unsigned int            field_count;
-	u64			ts;
-
-	/* Memory type */
-	enum v4l2_memory        memory;
-
-	/* buffer size */
-	size_t                  bsize;
-
-	/* buffer offset (mmap + overlay) */
-	size_t                  boff;
-
-	/* buffer addr (userland ptr!) */
-	unsigned long           baddr;
-
-	/* for mmap'ed buffers */
-	struct videobuf_mapping *map;
-
-	/* Private pointer to allow specific methods to store their data */
-	int			privsize;
-	void                    *priv;
-};
-
-struct videobuf_queue_ops {
-	int (*buf_setup)(struct videobuf_queue *q,
-			 unsigned int *count, unsigned int *size);
-	int (*buf_prepare)(struct videobuf_queue *q,
-			   struct videobuf_buffer *vb,
-			   enum v4l2_field field);
-	void (*buf_queue)(struct videobuf_queue *q,
-			  struct videobuf_buffer *vb);
-	void (*buf_release)(struct videobuf_queue *q,
-			    struct videobuf_buffer *vb);
-};
-
-#define MAGIC_QTYPE_OPS	0x12261003
-
-/* Helper operations - device type dependent */
-struct videobuf_qtype_ops {
-	u32                     magic;
-
-	struct videobuf_buffer *(*alloc_vb)(size_t size);
-	void *(*vaddr)		(struct videobuf_buffer *buf);
-	int (*iolock)		(struct videobuf_queue *q,
-				 struct videobuf_buffer *vb,
-				 struct v4l2_framebuffer *fbuf);
-	int (*sync)		(struct videobuf_queue *q,
-				 struct videobuf_buffer *buf);
-	int (*mmap_mapper)	(struct videobuf_queue *q,
-				 struct videobuf_buffer *buf,
-				 struct vm_area_struct *vma);
-};
-
-struct videobuf_queue {
-	struct mutex               vb_lock;
-	struct mutex               *ext_lock;
-	spinlock_t                 *irqlock;
-	struct device		   *dev;
-
-	wait_queue_head_t	   wait; /* wait if queue is empty */
-
-	enum v4l2_buf_type         type;
-	unsigned int               msize;
-	enum v4l2_field            field;
-	enum v4l2_field            last;   /* for field=V4L2_FIELD_ALTERNATE */
-	struct videobuf_buffer     *bufs[VIDEO_MAX_FRAME];
-	const struct videobuf_queue_ops  *ops;
-	struct videobuf_qtype_ops  *int_ops;
-
-	unsigned int               streaming:1;
-	unsigned int               reading:1;
-
-	/* capture via mmap() + ioctl(QBUF/DQBUF) */
-	struct list_head           stream;
-
-	/* capture via read() */
-	unsigned int               read_off;
-	struct videobuf_buffer     *read_buf;
-
-	/* driver private data */
-	void                       *priv_data;
-};
-
-static inline void videobuf_queue_lock(struct videobuf_queue *q)
-{
-	if (!q->ext_lock)
-		mutex_lock(&q->vb_lock);
-}
-
-static inline void videobuf_queue_unlock(struct videobuf_queue *q)
-{
-	if (!q->ext_lock)
-		mutex_unlock(&q->vb_lock);
-}
-
-int videobuf_waiton(struct videobuf_queue *q, struct videobuf_buffer *vb,
-		int non_blocking, int intr);
-int videobuf_iolock(struct videobuf_queue *q, struct videobuf_buffer *vb,
-		struct v4l2_framebuffer *fbuf);
-
-struct videobuf_buffer *videobuf_alloc_vb(struct videobuf_queue *q);
-
-/* Used on videobuf-dvb */
-void *videobuf_queue_to_vaddr(struct videobuf_queue *q,
-			      struct videobuf_buffer *buf);
-
-void videobuf_queue_core_init(struct videobuf_queue *q,
-			 const struct videobuf_queue_ops *ops,
-			 struct device *dev,
-			 spinlock_t *irqlock,
-			 enum v4l2_buf_type type,
-			 enum v4l2_field field,
-			 unsigned int msize,
-			 void *priv,
-			 struct videobuf_qtype_ops *int_ops,
-			 struct mutex *ext_lock);
-int  videobuf_queue_is_busy(struct videobuf_queue *q);
-void videobuf_queue_cancel(struct videobuf_queue *q);
-
-enum v4l2_field videobuf_next_field(struct videobuf_queue *q);
-int videobuf_reqbufs(struct videobuf_queue *q,
-		     struct v4l2_requestbuffers *req);
-int videobuf_querybuf(struct videobuf_queue *q, struct v4l2_buffer *b);
-int videobuf_qbuf(struct videobuf_queue *q,
-		  struct v4l2_buffer *b);
-int videobuf_dqbuf(struct videobuf_queue *q,
-		   struct v4l2_buffer *b, int nonblocking);
-int videobuf_streamon(struct videobuf_queue *q);
-int videobuf_streamoff(struct videobuf_queue *q);
-
-void videobuf_stop(struct videobuf_queue *q);
-
-int videobuf_read_start(struct videobuf_queue *q);
-void videobuf_read_stop(struct videobuf_queue *q);
-ssize_t videobuf_read_stream(struct videobuf_queue *q,
-			     char __user *data, size_t count, loff_t *ppos,
-			     int vbihack, int nonblocking);
-ssize_t videobuf_read_one(struct videobuf_queue *q,
-			  char __user *data, size_t count, loff_t *ppos,
-			  int nonblocking);
-__poll_t videobuf_poll_stream(struct file *file,
-				  struct videobuf_queue *q,
-				  poll_table *wait);
-
-int videobuf_mmap_setup(struct videobuf_queue *q,
-			unsigned int bcount, unsigned int bsize,
-			enum v4l2_memory memory);
-int __videobuf_mmap_setup(struct videobuf_queue *q,
-			unsigned int bcount, unsigned int bsize,
-			enum v4l2_memory memory);
-int videobuf_mmap_free(struct videobuf_queue *q);
-int videobuf_mmap_mapper(struct videobuf_queue *q,
-			 struct vm_area_struct *vma);
-
-#endif
diff --git a/include/media/videobuf-dma-contig.h b/include/media/videobuf-dma-contig.h
deleted file mode 100644
index 525883b2c53e..000000000000
--- a/include/media/videobuf-dma-contig.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * helper functions for physically contiguous capture buffers
- *
- * The functions support hardware lacking scatter gather support
- * (i.e. the buffers must be linear in physical memory)
- *
- * Copyright (c) 2008 Magnus Damm
- */
-#ifndef _VIDEOBUF_DMA_CONTIG_H
-#define _VIDEOBUF_DMA_CONTIG_H
-
-#include <linux/dma-mapping.h>
-#include <media/videobuf-core.h>
-
-void videobuf_queue_dma_contig_init(struct videobuf_queue *q,
-				    const struct videobuf_queue_ops *ops,
-				    struct device *dev,
-				    spinlock_t *irqlock,
-				    enum v4l2_buf_type type,
-				    enum v4l2_field field,
-				    unsigned int msize,
-				    void *priv,
-				    struct mutex *ext_lock);
-
-dma_addr_t videobuf_to_dma_contig(struct videobuf_buffer *buf);
-void videobuf_dma_contig_free(struct videobuf_queue *q,
-			      struct videobuf_buffer *buf);
-
-#endif /* _VIDEOBUF_DMA_CONTIG_H */
diff --git a/include/media/videobuf-dma-sg.h b/include/media/videobuf-dma-sg.h
deleted file mode 100644
index 930ff8d454fc..000000000000
--- a/include/media/videobuf-dma-sg.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * helper functions for SG DMA video4linux capture buffers
- *
- * The functions expect the hardware being able to scatter gather
- * (i.e. the buffers are not linear in physical memory, but fragmented
- * into PAGE_SIZE chunks).  They also assume the driver does not need
- * to touch the video data.
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
- *
- * Highly based on video-buf written originally by:
- * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org>
- * (c) 2006 Mauro Carvalho Chehab, <mchehab@kernel.org>
- * (c) 2006 Ted Walther and John Sokol
- */
-#ifndef _VIDEOBUF_DMA_SG_H
-#define _VIDEOBUF_DMA_SG_H
-
-#include <media/videobuf-core.h>
-
-/* --------------------------------------------------------------------- */
-
-/*
- * A small set of helper functions to manage buffers (both userland
- * and kernel) for DMA.
- *
- * videobuf_dma_init_*()
- *	creates a buffer.  The userland version takes a userspace
- *	pointer + length.  The kernel version just wants the size and
- *	does memory allocation too using vmalloc_32().
- *
- * videobuf_dma_*()
- *	see Documentation/core-api/dma-api-howto.rst, these functions to
- *	basically the same.  The map function does also build a
- *	scatterlist for the buffer (and unmap frees it ...)
- *
- * videobuf_dma_free()
- *	no comment ...
- *
- */
-
-struct videobuf_dmabuf {
-	u32                 magic;
-
-	/* for userland buffer */
-	int                 offset;
-	size_t		    size;
-	struct page         **pages;
-
-	/* for kernel buffers */
-	void                *vaddr;
-	struct page         **vaddr_pages;
-	dma_addr_t          *dma_addr;
-	struct device       *dev;
-
-	/* for overlay buffers (pci-pci dma) */
-	dma_addr_t          bus_addr;
-
-	/* common */
-	struct scatterlist  *sglist;
-	int                 sglen;
-	unsigned long       nr_pages;
-	int                 direction;
-};
-
-struct videobuf_dma_sg_memory {
-	u32                 magic;
-
-	/* for mmap'ed buffers */
-	struct videobuf_dmabuf  dma;
-};
-
-/*
- * Scatter-gather DMA buffer API.
- *
- * These functions provide a simple way to create a page list and a
- * scatter-gather list from a kernel, userspace of physical address and map the
- * memory for DMA operation.
- *
- * Despite the name, this is totally unrelated to videobuf, except that
- * videobuf-dma-sg uses the same API internally.
- */
-int videobuf_dma_free(struct videobuf_dmabuf *dma);
-
-int videobuf_dma_unmap(struct device *dev, struct videobuf_dmabuf *dma);
-struct videobuf_dmabuf *videobuf_to_dma(struct videobuf_buffer *buf);
-
-void *videobuf_sg_alloc(size_t size);
-
-void videobuf_queue_sg_init(struct videobuf_queue *q,
-			 const struct videobuf_queue_ops *ops,
-			 struct device *dev,
-			 spinlock_t *irqlock,
-			 enum v4l2_buf_type type,
-			 enum v4l2_field field,
-			 unsigned int msize,
-			 void *priv,
-			 struct mutex *ext_lock);
-
-#endif /* _VIDEOBUF_DMA_SG_H */
-
diff --git a/include/media/videobuf-vmalloc.h b/include/media/videobuf-vmalloc.h
deleted file mode 100644
index e930dbb9d7f4..000000000000
--- a/include/media/videobuf-vmalloc.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * helper functions for vmalloc capture buffers
- *
- * The functions expect the hardware being able to scatter gather
- * (i.e. the buffers are not linear in physical memory, but fragmented
- * into PAGE_SIZE chunks).  They also assume the driver does not need
- * to touch the video data.
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@kernel.org>
- */
-#ifndef _VIDEOBUF_VMALLOC_H
-#define _VIDEOBUF_VMALLOC_H
-
-#include <media/videobuf-core.h>
-
-/* --------------------------------------------------------------------- */
-
-struct videobuf_vmalloc_memory {
-	u32                 magic;
-
-	void                *vaddr;
-
-	/* remap_vmalloc_range seems to need to run
-	 * after mmap() on some cases */
-	struct vm_area_struct *vma;
-};
-
-void videobuf_queue_vmalloc_init(struct videobuf_queue *q,
-			 const struct videobuf_queue_ops *ops,
-			 struct device *dev,
-			 spinlock_t *irqlock,
-			 enum v4l2_buf_type type,
-			 enum v4l2_field field,
-			 unsigned int msize,
-			 void *priv,
-			 struct mutex *ext_lock);
-
-void *videobuf_to_vmalloc(struct videobuf_buffer *buf);
-
-void videobuf_vmalloc_free(struct videobuf_buffer *buf);
-
-#endif
diff --git a/include/uapi/linux/npcm-video.h b/include/uapi/linux/npcm-video.h
new file mode 100644
index 000000000000..1d39f6f38c96
--- /dev/null
+++ b/include/uapi/linux/npcm-video.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * Controls header for NPCM video driver
+ *
+ * Copyright (C) 2022 Nuvoton Technologies
+ */
+
+#ifndef _UAPI_LINUX_NPCM_VIDEO_H
+#define _UAPI_LINUX_NPCM_VIDEO_H
+
+#include <linux/v4l2-controls.h>
+
+/*
+ * Check Documentation/userspace-api/media/drivers/npcm-video.rst for control
+ * details.
+ */
+
+/*
+ * This control is meant to set the mode of NPCM Video Capture/Differentiation
+ * (VCD) engine.
+ *
+ * The VCD engine supports two modes:
+ * COMPLETE - Capture the next complete frame into memory.
+ * DIFF	    - Compare the incoming frame with the frame stored in memory, and
+ *	      updates the differentiated frame in memory.
+ */
+#define V4L2_CID_NPCM_CAPTURE_MODE	(V4L2_CID_USER_NPCM_BASE + 0)
+
+enum v4l2_npcm_capture_mode {
+	V4L2_NPCM_CAPTURE_MODE_COMPLETE	= 0, /* COMPLETE mode */
+	V4L2_NPCM_CAPTURE_MODE_DIFF	= 1, /* DIFF mode */
+};
+
+/*
+ * This control is meant to get the count of compressed HEXTILE rectangles which
+ * is relevant to the number of differentiated frames if VCD is in DIFF mode.
+ * And the count will always be 1 if VCD is in COMPLETE mode.
+ */
+#define V4L2_CID_NPCM_RECT_COUNT	(V4L2_CID_USER_NPCM_BASE + 1)
+
+#endif /* _UAPI_LINUX_NPCM_VIDEO_H */
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index c3604a0a3e30..68db66d4aae8 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -203,6 +203,12 @@ enum v4l2_colorfx {
  */
 #define V4L2_CID_USER_ASPEED_BASE		(V4L2_CID_USER_BASE + 0x11a0)
 
+/*
+ * The base for Nuvoton NPCM driver controls.
+ * We reserve 16 controls for this driver.
+ */
+#define V4L2_CID_USER_NPCM_BASE			(V4L2_CID_USER_BASE + 0x11b0)
+
 /* MPEG-class control IDs */
 /* The MPEG controls are applicable to all codec controls
  * and the 'MPEG' part of the define is historical */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 78260e5d9985..c3d4e490ce7c 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -804,6 +804,7 @@ struct v4l2_pix_format {
 #define V4L2_PIX_FMT_QC08C    v4l2_fourcc('Q', '0', '8', 'C') /* Qualcomm 8-bit compressed */
 #define V4L2_PIX_FMT_QC10C    v4l2_fourcc('Q', '1', '0', 'C') /* Qualcomm 10-bit compressed */
 #define V4L2_PIX_FMT_AJPG     v4l2_fourcc('A', 'J', 'P', 'G') /* Aspeed JPEG */
+#define V4L2_PIX_FMT_HEXTILE  v4l2_fourcc('H', 'X', 'T', 'L') /* Hextile compressed */
 
 /* 10bit raw packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
 #define V4L2_PIX_FMT_IPU3_SBGGR10	v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */