Merge branch 'main' into zstd-next

19 files changed, 379 insertions, 96 deletions

diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 34fb3431a8f3..292a5c40bd0c 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -71,7 +71,7 @@ int ghes_register_vendor_record_notifier(struct notifier_block *nb);
 void ghes_unregister_vendor_record_notifier(struct notifier_block *nb);
 #endif
 
-int ghes_estatus_pool_init(int num_ghes);
+int ghes_estatus_pool_init(unsigned int num_ghes);
 
 /* From drivers/edac/ghes_edac.c */
 
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index c15de165ec8f..d06ada2341cb 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -162,6 +162,16 @@
 #define PATCHABLE_DISCARDS	*(__patchable_function_entries)
 #endif
 
+#ifndef CONFIG_ARCH_SUPPORTS_CFI_CLANG
+/*
+ * Simply points to ftrace_stub, but with the proper protocol.
+ * Defined by the linker script in linux/vmlinux.lds.h
+ */
+#define	FTRACE_STUB_HACK	ftrace_stub_graph = ftrace_stub;
+#else
+#define FTRACE_STUB_HACK
+#endif
+
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
 /*
  * The ftrace call sites are logged to a section whose name depends on the
@@ -169,10 +179,6 @@
  * FTRACE_CALLSITE_SECTION. We capture all of them here to avoid header
  * dependencies for FTRACE_CALLSITE_SECTION's definition.
  *
- * Need to also make ftrace_stub_graph point to ftrace_stub
- * so that the same stub location may have different protocols
- * and not mess up with C verifiers.
- *
  * ftrace_ops_list_func will be defined as arch_ftrace_ops_list_func
  * as some archs will have a different prototype for that function
  * but ftrace_ops_list_func() will have a single prototype.
@@ -182,11 +188,11 @@
 			KEEP(*(__mcount_loc))			\
 			KEEP_PATCHABLE				\
 			__stop_mcount_loc = .;			\
-			ftrace_stub_graph = ftrace_stub;	\
+			FTRACE_STUB_HACK			\
 			ftrace_ops_list_func = arch_ftrace_ops_list_func;
 #else
 # ifdef CONFIG_FUNCTION_TRACER
-#  define MCOUNT_REC()	ftrace_stub_graph = ftrace_stub;	\
+#  define MCOUNT_REC()	FTRACE_STUB_HACK			\
 			ftrace_ops_list_func = arch_ftrace_ops_list_func;
 # else
 #  define MCOUNT_REC()
diff --git a/include/linux/efi.h b/include/linux/efi.h
index da3974bf05d3..80f3c1c7827d 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1085,9 +1085,6 @@ efi_status_t efivar_set_variable_locked(efi_char16_t *name, efi_guid_t *vendor,
 efi_status_t efivar_set_variable(efi_char16_t *name, efi_guid_t *vendor,
 				 u32 attr, unsigned long data_size, void *data);
 
-efi_status_t check_var_size(u32 attributes, unsigned long size);
-efi_status_t check_var_size_nonblocking(u32 attributes, unsigned long size);
-
 #if IS_ENABLED(CONFIG_EFI_CAPSULE_LOADER)
 extern bool efi_capsule_pending(int *reset_type);
 
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index a325532aeab5..3c9da1f8979e 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -455,7 +455,7 @@ extern void iommu_set_default_translated(bool cmd_line);
 extern bool iommu_default_passthrough(void);
 extern struct iommu_resv_region *
 iommu_alloc_resv_region(phys_addr_t start, size_t length, int prot,
-			enum iommu_resv_type type);
+			enum iommu_resv_type type, gfp_t gfp);
 extern int iommu_get_group_resv_regions(struct iommu_group *group,
 					struct list_head *head);
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 32f259fa5801..00c3448ba7f8 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1390,6 +1390,8 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm,
 			    struct kvm_enable_cap *cap);
 long kvm_arch_vm_ioctl(struct file *filp,
 		       unsigned int ioctl, unsigned long arg);
+long kvm_arch_vm_compat_ioctl(struct file *filp, unsigned int ioctl,
+			      unsigned long arg);
 
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
diff --git a/include/linux/net.h b/include/linux/net.h
index 711c3593c3b8..18d942bbdf6e 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -41,6 +41,7 @@ struct net;
 #define SOCK_NOSPACE		2
 #define SOCK_PASSCRED		3
 #define SOCK_PASSSEC		4
+#define SOCK_SUPPORT_ZC		5
 
 #ifndef ARCH_HAS_SOCKET_TYPES
 /**
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 853f64b6c8c2..0031f7b4d9ab 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -756,11 +756,14 @@ struct perf_event {
 	struct fasync_struct		*fasync;
 
 	/* delayed work for NMIs and such */
-	int				pending_wakeup;
-	int				pending_kill;
-	int				pending_disable;
+	unsigned int			pending_wakeup;
+	unsigned int			pending_kill;
+	unsigned int			pending_disable;
+	unsigned int			pending_sigtrap;
 	unsigned long			pending_addr;	/* SIGTRAP */
-	struct irq_work			pending;
+	struct irq_work			pending_irq;
+	struct callback_head		pending_task;
+	unsigned int			pending_work;
 
 	atomic_t			event_limit;
 
@@ -877,6 +880,14 @@ struct perf_event_context {
 #endif
 	void				*task_ctx_data; /* pmu specific data */
 	struct rcu_head			rcu_head;
+
+	/*
+	 * Sum (event->pending_sigtrap + event->pending_work)
+	 *
+	 * The SIGTRAP is targeted at ctx->task, as such it won't do changing
+	 * that until the signal is delivered.
+	 */
+	local_t				nr_pending;
 };
 
 /*
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index 2b1737c9b244..bf7613ba412b 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -10,6 +10,7 @@
 #include <uapi/linux/utsname.h>
 
 enum uts_proc {
+	UTS_PROC_ARCH,
 	UTS_PROC_OSTYPE,
 	UTS_PROC_OSRELEASE,
 	UTS_PROC_VERSION,
diff --git a/include/media/i2c/ir-kbd-i2c.h b/include/media/i2c/ir-kbd-i2c.h
index 9f47d6a48cff..0b58f8b9e7a4 100644
--- a/include/media/i2c/ir-kbd-i2c.h
+++ b/include/media/i2c/ir-kbd-i2c.h
@@ -35,6 +35,7 @@ enum ir_kbd_get_key_fn {
 	IR_KBD_GET_KEY_PIXELVIEW,
 	IR_KBD_GET_KEY_HAUP,
 	IR_KBD_GET_KEY_KNC1,
+	IR_KBD_GET_KEY_GENIATECH,
 	IR_KBD_GET_KEY_FUSIONHDTV,
 	IR_KBD_GET_KEY_HAUP_XVR,
 	IR_KBD_GET_KEY_AVERMEDIA_CARDBUS,
diff --git a/include/media/media-device.h b/include/media/media-device.h
index a10b30507524..86716ee7cc6c 100644
--- a/include/media/media-device.h
+++ b/include/media/media-device.h
@@ -192,21 +192,6 @@ struct usb_device;
 #define MEDIA_DEV_NOTIFY_POST_LINK_CH	1
 
 /**
- * media_entity_enum_init - Initialise an entity enumeration
- *
- * @ent_enum: Entity enumeration to be initialised
- * @mdev: The related media device
- *
- * Return: zero on success or a negative error code.
- */
-static inline __must_check int media_entity_enum_init(
-	struct media_entity_enum *ent_enum, struct media_device *mdev)
-{
-	return __media_entity_enum_init(ent_enum,
-					mdev->entity_internal_idx_max + 1);
-}
-
-/**
  * media_device_init() - Initializes a media device element
  *
  * @mdev:	pointer to struct &media_device
diff --git a/include/media/media-entity.h b/include/media/media-entity.h
index f16ffe70f7a6..28c9de8a1f34 100644
--- a/include/media/media-entity.h
+++ b/include/media/media-entity.h
@@ -17,6 +17,7 @@
 #include <linux/fwnode.h>
 #include <linux/list.h>
 #include <linux/media.h>
+#include <linux/minmax.h>
 #include <linux/types.h>
 
 /* Enums used internally at the media controller to represent graphs */
@@ -99,12 +100,34 @@ struct media_graph {
 /**
  * struct media_pipeline - Media pipeline related information
  *
- * @streaming_count:	Streaming start count - streaming stop count
- * @graph:		Media graph walk during pipeline start / stop
+ * @allocated:		Media pipeline allocated and freed by the framework
+ * @mdev:		The media device the pipeline is part of
+ * @pads:		List of media_pipeline_pad
+ * @start_count:	Media pipeline start - stop count
  */
 struct media_pipeline {
-	int streaming_count;
-	struct media_graph graph;
+	bool allocated;
+	struct media_device *mdev;
+	struct list_head pads;
+	int start_count;
+};
+
+/**
+ * struct media_pipeline_pad - A pad part of a media pipeline
+ *
+ * @list:		Entry in the media_pad pads list
+ * @pipe:		The media_pipeline that the pad is part of
+ * @pad:		The media pad
+ *
+ * This structure associate a pad with a media pipeline. Instances of
+ * media_pipeline_pad are created by media_pipeline_start() when it builds the
+ * pipeline, and stored in the &media_pad.pads list. media_pipeline_stop()
+ * removes the entries from the list and deletes them.
+ */
+struct media_pipeline_pad {
+	struct list_head list;
+	struct media_pipeline *pipe;
+	struct media_pad *pad;
 };
 
 /**
@@ -186,6 +209,8 @@ enum media_pad_signal_type {
  * @flags:	Pad flags, as defined in
  *		:ref:`include/uapi/linux/media.h <media_header>`
  *		(seek for ``MEDIA_PAD_FL_*``)
+ * @pipe:	Pipeline this pad belongs to. Use media_entity_pipeline() to
+ *		access this field.
  */
 struct media_pad {
 	struct media_gobj graph_obj;	/* must be first field in struct */
@@ -193,6 +218,12 @@ struct media_pad {
 	u16 index;
 	enum media_pad_signal_type sig_type;
 	unsigned long flags;
+
+	/*
+	 * The fields below are private, and should only be accessed via
+	 * appropriate functions.
+	 */
+	struct media_pipeline *pipe;
 };
 
 /**
@@ -206,6 +237,14 @@ struct media_pad {
  * @link_validate:	Return whether a link is valid from the entity point of
  *			view. The media_pipeline_start() function
  *			validates all links by calling this operation. Optional.
+ * @has_pad_interdep:	Return whether a two pads inside the entity are
+ *			interdependent. If two pads are interdependent they are
+ *			part of the same pipeline and enabling one of the pads
+ *			means that the other pad will become "locked" and
+ *			doesn't allow configuration changes. pad0 and pad1 are
+ *			guaranteed to not both be sinks or sources.
+ *			Optional: If the operation isn't implemented all pads
+ *			will be considered as interdependent.
  *
  * .. note::
  *
@@ -219,6 +258,8 @@ struct media_entity_operations {
 			  const struct media_pad *local,
 			  const struct media_pad *remote, u32 flags);
 	int (*link_validate)(struct media_link *link);
+	bool (*has_pad_interdep)(struct media_entity *entity, unsigned int pad0,
+				 unsigned int pad1);
 };
 
 /**
@@ -269,7 +310,6 @@ enum media_entity_type {
  * @links:	List of data links.
  * @ops:	Entity operations.
  * @use_count:	Use count for the entity.
- * @pipe:	Pipeline this entity belongs to.
  * @info:	Union with devnode information.  Kept just for backward
  *		compatibility.
  * @info.dev:	Contains device major and minor info.
@@ -305,8 +345,6 @@ struct media_entity {
 
 	int use_count;
 
-	struct media_pipeline *pipe;
-
 	union {
 		struct {
 			u32 major;
@@ -316,6 +354,18 @@ struct media_entity {
 };
 
 /**
+ * media_entity_for_each_pad - Iterate on all pads in an entity
+ * @entity: The entity the pads belong to
+ * @iter: The iterator pad
+ *
+ * Iterate on all pads in a media entity.
+ */
+#define media_entity_for_each_pad(entity, iter)			\
+	for (iter = (entity)->pads;				\
+	     iter < &(entity)->pads[(entity)->num_pads];	\
+	     ++iter)
+
+/**
  * struct media_interface - A media interface graph object.
  *
  * @graph_obj:		embedded graph object
@@ -426,15 +476,15 @@ static inline bool is_media_entity_v4l2_subdev(struct media_entity *entity)
 }
 
 /**
- * __media_entity_enum_init - Initialise an entity enumeration
+ * media_entity_enum_init - Initialise an entity enumeration
  *
  * @ent_enum: Entity enumeration to be initialised
- * @idx_max: Maximum number of entities in the enumeration
+ * @mdev: The related media device
  *
- * Return: Returns zero on success or a negative error code.
+ * Return: zero on success or a negative error code.
  */
-__must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
-					  int idx_max);
+__must_check int media_entity_enum_init(struct media_entity_enum *ent_enum,
+					struct media_device *mdev);
 
 /**
  * media_entity_enum_cleanup - Release resources of an entity enumeration
@@ -924,6 +974,18 @@ media_entity_remote_source_pad_unique(const struct media_entity *entity)
 }
 
 /**
+ * media_pad_is_streaming - Test if a pad is part of a streaming pipeline
+ * @pad: The pad
+ *
+ * Return: True if the pad is part of a pipeline started with the
+ * media_pipeline_start() function, false otherwise.
+ */
+static inline bool media_pad_is_streaming(const struct media_pad *pad)
+{
+	return pad->pipe;
+}
+
+/**
  * media_entity_is_streaming - Test if an entity is part of a streaming pipeline
  * @entity: The entity
  *
@@ -932,10 +994,50 @@ media_entity_remote_source_pad_unique(const struct media_entity *entity)
  */
 static inline bool media_entity_is_streaming(const struct media_entity *entity)
 {
-	return entity->pipe;
+	struct media_pad *pad;
+
+	media_entity_for_each_pad(entity, pad) {
+		if (media_pad_is_streaming(pad))
+			return true;
+	}
+
+	return false;
 }
 
 /**
+ * media_entity_pipeline - Get the media pipeline an entity is part of
+ * @entity: The entity
+ *
+ * DEPRECATED: use media_pad_pipeline() instead.
+ *
+ * This function returns the media pipeline that an entity has been associated
+ * with when constructing the pipeline with media_pipeline_start(). The pointer
+ * remains valid until media_pipeline_stop() is called.
+ *
+ * In general, entities can be part of multiple pipelines, when carrying
+ * multiple streams (either on different pads, or on the same pad using
+ * multiplexed streams). This function is to be used only for entities that
+ * do not support multiple pipelines.
+ *
+ * Return: The media_pipeline the entity is part of, or NULL if the entity is
+ * not part of any pipeline.
+ */
+struct media_pipeline *media_entity_pipeline(struct media_entity *entity);
+
+/**
+ * media_pad_pipeline - Get the media pipeline a pad is part of
+ * @pad: The pad
+ *
+ * This function returns the media pipeline that a pad has been associated
+ * with when constructing the pipeline with media_pipeline_start(). The pointer
+ * remains valid until media_pipeline_stop() is called.
+ *
+ * Return: The media_pipeline the pad is part of, or NULL if the pad is
+ * not part of any pipeline.
+ */
+struct media_pipeline *media_pad_pipeline(struct media_pad *pad);
+
+/**
  * media_entity_get_fwnode_pad - Get pad number from fwnode
  *
  * @entity: The entity
@@ -1013,53 +1115,66 @@ struct media_entity *media_graph_walk_next(struct media_graph *graph);
 
 /**
  * media_pipeline_start - Mark a pipeline as streaming
- * @entity: Starting entity
- * @pipe: Media pipeline to be assigned to all entities in the pipeline.
+ * @pad: Starting pad
+ * @pipe: Media pipeline to be assigned to all pads in the pipeline.
  *
- * Mark all entities connected to a given entity through enabled links, either
+ * Mark all pads connected to a given pad through enabled links, either
  * directly or indirectly, as streaming. The given pipeline object is assigned
- * to every entity in the pipeline and stored in the media_entity pipe field.
+ * to every pad in the pipeline and stored in the media_pad pipe field.
  *
  * Calls to this function can be nested, in which case the same number of
  * media_pipeline_stop() calls will be required to stop streaming. The
  * pipeline pointer must be identical for all nested calls to
  * media_pipeline_start().
  */
-__must_check int media_pipeline_start(struct media_entity *entity,
+__must_check int media_pipeline_start(struct media_pad *pad,
 				      struct media_pipeline *pipe);
 /**
  * __media_pipeline_start - Mark a pipeline as streaming
  *
- * @entity: Starting entity
- * @pipe: Media pipeline to be assigned to all entities in the pipeline.
+ * @pad: Starting pad
+ * @pipe: Media pipeline to be assigned to all pads in the pipeline.
  *
  * ..note:: This is the non-locking version of media_pipeline_start()
  */
-__must_check int __media_pipeline_start(struct media_entity *entity,
+__must_check int __media_pipeline_start(struct media_pad *pad,
 					struct media_pipeline *pipe);
 
 /**
  * media_pipeline_stop - Mark a pipeline as not streaming
- * @entity: Starting entity
+ * @pad: Starting pad
  *
- * Mark all entities connected to a given entity through enabled links, either
- * directly or indirectly, as not streaming. The media_entity pipe field is
+ * Mark all pads connected to a given pads through enabled links, either
+ * directly or indirectly, as not streaming. The media_pad pipe field is
  * reset to %NULL.
  *
  * If multiple calls to media_pipeline_start() have been made, the same
  * number of calls to this function are required to mark the pipeline as not
  * streaming.
  */
-void media_pipeline_stop(struct media_entity *entity);
+void media_pipeline_stop(struct media_pad *pad);
 
 /**
  * __media_pipeline_stop - Mark a pipeline as not streaming
  *
- * @entity: Starting entity
+ * @pad: Starting pad
  *
  * .. note:: This is the non-locking version of media_pipeline_stop()
  */
-void __media_pipeline_stop(struct media_entity *entity);
+void __media_pipeline_stop(struct media_pad *pad);
+
+/**
+ * media_pipeline_alloc_start - Mark a pipeline as streaming
+ * @pad: Starting pad
+ *
+ * media_pipeline_alloc_start() is similar to media_pipeline_start() but instead
+ * of working on a given pipeline the function will use an existing pipeline if
+ * the pad is already part of a pipeline, or allocate a new pipeline.
+ *
+ * Calls to media_pipeline_alloc_start() must be matched with
+ * media_pipeline_stop().
+ */
+__must_check int media_pipeline_alloc_start(struct media_pad *pad);
 
 /**
  * media_devnode_create() - creates and initializes a device node interface
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 725ff91b26e0..1bdaea248089 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -175,7 +175,8 @@ struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
  *
  * @sd: pointer to &struct v4l2_subdev
  * @client: pointer to struct i2c_client
- * @devname: the name of the device; if NULL, the I²C device's name will be used
+ * @devname: the name of the device; if NULL, the I²C device drivers's name
+ *           will be used
  * @postfix: sub-device specific string to put right after the I²C device name;
  *	     may be NULL
  */
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index b76a0714d425..e59d9a234631 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -121,21 +121,19 @@ struct v4l2_ctrl_ops {
  * struct v4l2_ctrl_type_ops - The control type operations that the driver
  *			       has to provide.
  *
- * @equal: return true if both values are equal.
- * @init: initialize the value.
+ * @equal: return true if all ctrl->elems array elements are equal.
+ * @init: initialize the value for array elements from from_idx to ctrl->elems.
  * @log: log the value.
- * @validate: validate the value. Return 0 on success and a negative value
- *	otherwise.
+ * @validate: validate the value for ctrl->new_elems array elements.
+ *	Return 0 on success and a negative value otherwise.
  */
 struct v4l2_ctrl_type_ops {
-	bool (*equal)(const struct v4l2_ctrl *ctrl, u32 elems,
-		      union v4l2_ctrl_ptr ptr1,
-		      union v4l2_ctrl_ptr ptr2);
-	void (*init)(const struct v4l2_ctrl *ctrl, u32 from_idx, u32 tot_elems,
+	bool (*equal)(const struct v4l2_ctrl *ctrl,
+		      union v4l2_ctrl_ptr ptr1, union v4l2_ctrl_ptr ptr2);
+	void (*init)(const struct v4l2_ctrl *ctrl, u32 from_idx,
 		     union v4l2_ctrl_ptr ptr);
 	void (*log)(const struct v4l2_ctrl *ctrl);
-	int (*validate)(const struct v4l2_ctrl *ctrl, u32 elems,
-			union v4l2_ctrl_ptr ptr);
+	int (*validate)(const struct v4l2_ctrl *ctrl, union v4l2_ctrl_ptr ptr);
 };
 
 /**
@@ -1543,13 +1541,12 @@ int v4l2_ctrl_new_fwnode_properties(struct v4l2_ctrl_handler *hdl,
  * v4l2_ctrl_type_op_equal - Default v4l2_ctrl_type_ops equal callback.
  *
  * @ctrl: The v4l2_ctrl pointer.
- * @elems: The number of elements to compare.
  * @ptr1: A v4l2 control value.
  * @ptr2: A v4l2 control value.
  *
  * Return: true if values are equal, otherwise false.
  */
-bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl, u32 elems,
+bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl,
 			     union v4l2_ctrl_ptr ptr1, union v4l2_ctrl_ptr ptr2);
 
 /**
@@ -1557,13 +1554,12 @@ bool v4l2_ctrl_type_op_equal(const struct v4l2_ctrl *ctrl, u32 elems,
  *
  * @ctrl: The v4l2_ctrl pointer.
  * @from_idx: Starting element index.
- * @elems: The number of elements to initialize.
  * @ptr: The v4l2 control value.
  *
  * Return: void
  */
 void v4l2_ctrl_type_op_init(const struct v4l2_ctrl *ctrl, u32 from_idx,
-			    u32 elems, union v4l2_ctrl_ptr ptr);
+			    union v4l2_ctrl_ptr ptr);
 
 /**
  * v4l2_ctrl_type_op_log - Default v4l2_ctrl_type_ops log callback.
@@ -1578,12 +1574,10 @@ void v4l2_ctrl_type_op_log(const struct v4l2_ctrl *ctrl);
  * v4l2_ctrl_type_op_validate - Default v4l2_ctrl_type_ops validate callback.
  *
  * @ctrl: The v4l2_ctrl pointer.
- * @elems: The number of elements in the control.
  * @ptr: The v4l2 control value.
  *
  * Return: 0 on success, a negative error code on failure.
  */
-int v4l2_ctrl_type_op_validate(const struct v4l2_ctrl *ctrl, u32 elems,
-			       union v4l2_ctrl_ptr ptr);
+int v4l2_ctrl_type_op_validate(const struct v4l2_ctrl *ctrl, union v4l2_ctrl_ptr ptr);
 
 #endif
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 5cf1edefb822..e0a13505f88d 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -539,4 +539,106 @@ static inline int video_is_registered(struct video_device *vdev)
 	return test_bit(V4L2_FL_REGISTERED, &vdev->flags);
 }
 
+#if defined(CONFIG_MEDIA_CONTROLLER)
+
+/**
+ * video_device_pipeline_start - Mark a pipeline as streaming
+ * @vdev: Starting video device
+ * @pipe: Media pipeline to be assigned to all entities in the pipeline.
+ *
+ * Mark all entities connected to a given video device through enabled links,
+ * either directly or indirectly, as streaming. The given pipeline object is
+ * assigned to every pad in the pipeline and stored in the media_pad pipe
+ * field.
+ *
+ * Calls to this function can be nested, in which case the same number of
+ * video_device_pipeline_stop() calls will be required to stop streaming. The
+ * pipeline pointer must be identical for all nested calls to
+ * video_device_pipeline_start().
+ *
+ * The video device must contain a single pad.
+ *
+ * This is a convenience wrapper around media_pipeline_start().
+ */
+__must_check int video_device_pipeline_start(struct video_device *vdev,
+					     struct media_pipeline *pipe);
+
+/**
+ * __video_device_pipeline_start - Mark a pipeline as streaming
+ * @vdev: Starting video device
+ * @pipe: Media pipeline to be assigned to all entities in the pipeline.
+ *
+ * ..note:: This is the non-locking version of video_device_pipeline_start()
+ *
+ * The video device must contain a single pad.
+ *
+ * This is a convenience wrapper around __media_pipeline_start().
+ */
+__must_check int __video_device_pipeline_start(struct video_device *vdev,
+					       struct media_pipeline *pipe);
+
+/**
+ * video_device_pipeline_stop - Mark a pipeline as not streaming
+ * @vdev: Starting video device
+ *
+ * Mark all entities connected to a given video device through enabled links,
+ * either directly or indirectly, as not streaming. The media_pad pipe field
+ * is reset to %NULL.
+ *
+ * If multiple calls to media_pipeline_start() have been made, the same
+ * number of calls to this function are required to mark the pipeline as not
+ * streaming.
+ *
+ * The video device must contain a single pad.
+ *
+ * This is a convenience wrapper around media_pipeline_stop().
+ */
+void video_device_pipeline_stop(struct video_device *vdev);
+
+/**
+ * __video_device_pipeline_stop - Mark a pipeline as not streaming
+ * @vdev: Starting video device
+ *
+ * .. note:: This is the non-locking version of media_pipeline_stop()
+ *
+ * The video device must contain a single pad.
+ *
+ * This is a convenience wrapper around __media_pipeline_stop().
+ */
+void __video_device_pipeline_stop(struct video_device *vdev);
+
+/**
+ * video_device_pipeline_alloc_start - Mark a pipeline as streaming
+ * @vdev: Starting video device
+ *
+ * video_device_pipeline_alloc_start() is similar to video_device_pipeline_start()
+ * but instead of working on a given pipeline the function will use an
+ * existing pipeline if the video device is already part of a pipeline, or
+ * allocate a new pipeline.
+ *
+ * Calls to video_device_pipeline_alloc_start() must be matched with
+ * video_device_pipeline_stop().
+ */
+__must_check int video_device_pipeline_alloc_start(struct video_device *vdev);
+
+/**
+ * video_device_pipeline - Get the media pipeline a video device is part of
+ * @vdev: The video device
+ *
+ * This function returns the media pipeline that a video device has been
+ * associated with when constructing the pipeline with
+ * video_device_pipeline_start(). The pointer remains valid until
+ * video_device_pipeline_stop() is called.
+ *
+ * Return: The media_pipeline the video device is part of, or NULL if the video
+ * device is not part of any pipeline.
+ *
+ * The video device must contain a single pad.
+ *
+ * This is a convenience wrapper around media_entity_pipeline().
+ */
+struct media_pipeline *video_device_pipeline(struct video_device *vdev);
+
+#endif /* CONFIG_MEDIA_CONTROLLER */
+
 #endif /* _V4L2_DEV_H */
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index 15e4ab672223..394d798f3dfa 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -45,10 +45,6 @@ struct v4l2_async_subdev;
  */
 struct v4l2_fwnode_endpoint {
 	struct fwnode_endpoint base;
-	/*
-	 * Fields below this line will be zeroed by
-	 * v4l2_fwnode_endpoint_parse()
-	 */
 	enum v4l2_mbus_type bus_type;
 	struct {
 		struct v4l2_mbus_config_parallel parallel;
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 9689f38a0af1..2f80c9c818ed 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -358,7 +358,11 @@ struct v4l2_mbus_frame_desc_entry {
 	} bus;
 };
 
-#define V4L2_FRAME_DESC_ENTRY_MAX	4
+ /*
+  * If this number is too small, it should be dropped altogether and the
+  * API switched to a dynamic number of frame descriptor entries.
+  */
+#define V4L2_FRAME_DESC_ENTRY_MAX	8
 
 /**
  * enum v4l2_mbus_frame_desc_type - media bus frame description type
@@ -1046,6 +1050,8 @@ v4l2_subdev_get_pad_format(struct v4l2_subdev *sd,
 			   struct v4l2_subdev_state *state,
 			   unsigned int pad)
 {
+	if (WARN_ON(!state))
+		return NULL;
 	if (WARN_ON(pad >= sd->entity.num_pads))
 		pad = 0;
 	return &state->pads[pad].try_fmt;
@@ -1064,6 +1070,8 @@ v4l2_subdev_get_pad_crop(struct v4l2_subdev *sd,
 			 struct v4l2_subdev_state *state,
 			 unsigned int pad)
 {
+	if (WARN_ON(!state))
+		return NULL;
 	if (WARN_ON(pad >= sd->entity.num_pads))
 		pad = 0;
 	return &state->pads[pad].try_crop;
@@ -1082,6 +1090,8 @@ v4l2_subdev_get_pad_compose(struct v4l2_subdev *sd,
 			    struct v4l2_subdev_state *state,
 			    unsigned int pad)
 {
+	if (WARN_ON(!state))
+		return NULL;
 	if (WARN_ON(pad >= sd->entity.num_pads))
 		pad = 0;
 	return &state->pads[pad].try_compose;
diff --git a/include/uapi/linux/cec-funcs.h b/include/uapi/linux/cec-funcs.h
index c3baaea0b8ef..d58fa1cdcb08 100644
--- a/include/uapi/linux/cec-funcs.h
+++ b/include/uapi/linux/cec-funcs.h
@@ -1568,6 +1568,20 @@ static inline void cec_ops_request_short_audio_descriptor(const struct cec_msg *
 	}
 }
 
+static inline void cec_msg_set_audio_volume_level(struct cec_msg *msg,
+						  __u8 audio_volume_level)
+{
+	msg->len = 3;
+	msg->msg[1] = CEC_MSG_SET_AUDIO_VOLUME_LEVEL;
+	msg->msg[2] = audio_volume_level;
+}
+
+static inline void cec_ops_set_audio_volume_level(const struct cec_msg *msg,
+						  __u8 *audio_volume_level)
+{
+	*audio_volume_level = msg->msg[2];
+}
+
 
 /* Audio Rate Control Feature */
 static inline void cec_msg_set_audio_rate(struct cec_msg *msg,
diff --git a/include/uapi/linux/cec.h b/include/uapi/linux/cec.h
index 1d48da926216..b8e071abaea5 100644
--- a/include/uapi/linux/cec.h
+++ b/include/uapi/linux/cec.h
@@ -768,6 +768,7 @@ struct cec_event {
 #define CEC_OP_FEAT_DEV_HAS_SET_AUDIO_RATE		0x08
 #define CEC_OP_FEAT_DEV_SINK_HAS_ARC_TX			0x04
 #define CEC_OP_FEAT_DEV_SOURCE_HAS_ARC_RX		0x02
+#define CEC_OP_FEAT_DEV_HAS_SET_AUDIO_VOLUME_LEVEL	0x01
 
 #define CEC_MSG_GIVE_FEATURES				0xa5	/* HDMI 2.0 */
 
@@ -1059,6 +1060,7 @@ struct cec_event {
 #define CEC_OP_AUD_FMT_ID_CEA861			0
 #define CEC_OP_AUD_FMT_ID_CEA861_CXT			1
 
+#define CEC_MSG_SET_AUDIO_VOLUME_LEVEL			0x73
 
 /* Audio Rate Control Feature */
 #define CEC_MSG_SET_AUDIO_RATE				0x9a
diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h
index 583ca0d9a79d..730673ecc63d 100644
--- a/include/uapi/linux/rkisp1-config.h
+++ b/include/uapi/linux/rkisp1-config.h
@@ -117,7 +117,46 @@
 /*
  * Defect Pixel Cluster Correction
  */
-#define RKISP1_CIF_ISP_DPCC_METHODS_MAX       3
+#define RKISP1_CIF_ISP_DPCC_METHODS_MAX				3
+
+#define RKISP1_CIF_ISP_DPCC_MODE_STAGE1_ENABLE			(1U << 2)
+
+#define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_INCL_G_CENTER	(1U << 0)
+#define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_INCL_RB_CENTER	(1U << 1)
+#define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_G_3X3		(1U << 2)
+#define RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_STAGE1_RB_3X3		(1U << 3)
+
+/* 0-2 for sets 1-3 */
+#define RKISP1_CIF_ISP_DPCC_SET_USE_STAGE1_USE_SET(n)		((n) << 0)
+#define RKISP1_CIF_ISP_DPCC_SET_USE_STAGE1_USE_FIX_SET		(1U << 3)
+
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_PG_GREEN_ENABLE		(1U << 0)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_GREEN_ENABLE		(1U << 1)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_RO_GREEN_ENABLE		(1U << 2)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_GREEN_ENABLE	(1U << 3)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_RG_GREEN_ENABLE		(1U << 4)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_PG_RED_BLUE_ENABLE	(1U << 8)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_LC_RED_BLUE_ENABLE	(1U << 9)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_RO_RED_BLUE_ENABLE	(1U << 10)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_RND_RED_BLUE_ENABLE	(1U << 11)
+#define RKISP1_CIF_ISP_DPCC_METHODS_SET_RG_RED_BLUE_ENABLE	(1U << 12)
+
+#define RKISP1_CIF_ISP_DPCC_LINE_THRESH_G(v)			((v) << 0)
+#define RKISP1_CIF_ISP_DPCC_LINE_THRESH_RB(v)			((v) << 8)
+#define RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_G(v)			((v) << 0)
+#define RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_RB(v)			((v) << 8)
+#define RKISP1_CIF_ISP_DPCC_PG_FAC_G(v)				((v) << 0)
+#define RKISP1_CIF_ISP_DPCC_PG_FAC_RB(v)			((v) << 8)
+#define RKISP1_CIF_ISP_DPCC_RND_THRESH_G(v)			((v) << 0)
+#define RKISP1_CIF_ISP_DPCC_RND_THRESH_RB(v)			((v) << 8)
+#define RKISP1_CIF_ISP_DPCC_RG_FAC_G(v)				((v) << 0)
+#define RKISP1_CIF_ISP_DPCC_RG_FAC_RB(v)			((v) << 8)
+
+#define RKISP1_CIF_ISP_DPCC_RO_LIMITS_n_G(n, v)			((v) << ((n) * 4))
+#define RKISP1_CIF_ISP_DPCC_RO_LIMITS_n_RB(n, v)		((v) << ((n) * 4 + 2))
+
+#define RKISP1_CIF_ISP_DPCC_RND_OFFS_n_G(n, v)			((v) << ((n) * 4))
+#define RKISP1_CIF_ISP_DPCC_RND_OFFS_n_RB(n, v)			((v) << ((n) * 4 + 2))
 
 /*
  * Denoising pre filter
@@ -249,16 +288,20 @@ struct rkisp1_cif_isp_bls_config {
 };
 
 /**
- * struct rkisp1_cif_isp_dpcc_methods_config - Methods Configuration used by DPCC
+ * struct rkisp1_cif_isp_dpcc_methods_config - DPCC methods set configuration
  *
- * Methods Configuration used by Defect Pixel Cluster Correction
+ * This structure stores the configuration of one set of methods for the DPCC
+ * algorithm. Multiple methods can be selected in each set (independently for
+ * the Green and Red/Blue components) through the @method field, the result is
+ * the logical AND of all enabled methods. The remaining fields set thresholds
+ * and factors for each method.
  *
- * @method: Method enable bits
- * @line_thresh: Line threshold
- * @line_mad_fac: Line MAD factor
- * @pg_fac: Peak gradient factor
- * @rnd_thresh: Rank Neighbor Difference threshold
- * @rg_fac: Rank gradient factor
+ * @method: Method enable bits (RKISP1_CIF_ISP_DPCC_METHODS_SET_*)
+ * @line_thresh: Line threshold (RKISP1_CIF_ISP_DPCC_LINE_THRESH_*)
+ * @line_mad_fac: Line Mean Absolute Difference factor (RKISP1_CIF_ISP_DPCC_LINE_MAD_FAC_*)
+ * @pg_fac: Peak gradient factor (RKISP1_CIF_ISP_DPCC_PG_FAC_*)
+ * @rnd_thresh: Rank Neighbor Difference threshold (RKISP1_CIF_ISP_DPCC_RND_THRESH_*)
+ * @rg_fac: Rank gradient factor (RKISP1_CIF_ISP_DPCC_RG_FAC_*)
  */
 struct rkisp1_cif_isp_dpcc_methods_config {
 	__u32 method;
@@ -272,14 +315,16 @@ struct rkisp1_cif_isp_dpcc_methods_config {
 /**
  * struct rkisp1_cif_isp_dpcc_config - Configuration used by DPCC
  *
- * Configuration used by Defect Pixel Cluster Correction
+ * Configuration used by Defect Pixel Cluster Correction. Three sets of methods
+ * can be configured and selected through the @set_use field. The result is the
+ * logical OR of all enabled sets.
  *
- * @mode: dpcc output mode
- * @output_mode: whether use hard coded methods
- * @set_use: stage1 methods set
- * @methods: methods config
- * @ro_limits: rank order limits
- * @rnd_offs: differential rank offsets for rank neighbor difference
+ * @mode: DPCC mode (RKISP1_CIF_ISP_DPCC_MODE_*)
+ * @output_mode: Interpolation output mode (RKISP1_CIF_ISP_DPCC_OUTPUT_MODE_*)
+ * @set_use: Methods sets selection (RKISP1_CIF_ISP_DPCC_SET_USE_*)
+ * @methods: Methods sets configuration
+ * @ro_limits: Rank order limits (RKISP1_CIF_ISP_DPCC_RO_LIMITS_*)
+ * @rnd_offs: Differential rank offsets for rank neighbor difference (RKISP1_CIF_ISP_DPCC_RND_OFFS_*)
  */
 struct rkisp1_cif_isp_dpcc_config {
 	__u32 mode;