Our current MPEG-2 uAPI uses 1-byte fields for MPEG-2
boolean syntax elements. Clean these by adding a 'flags'
field and flag macro for each boolean syntax element.

A follow-up change will refactor this uAPI so we don't need
to add padding fields just yet.

Signed-off-by: Ezequiel Garcia <[email protected]>
Tested-by: Jonas Karlman <[email protected]>
---
 .../media/v4l/ext-ctrls-codec.rst             |  77 +-
 drivers/media/v4l2-core/v4l2-async-core.c     | 880 ++++++++++++++++++
 drivers/media/v4l2-core/v4l2-ctrls.c          |  14 +-
 .../media/hantro/hantro_g1_mpeg2_dec.c        |  76 +-
 .../media/hantro/rk3399_vpu_hw_mpeg2_dec.c    |  76 +-
 .../staging/media/sunxi/cedrus/cedrus_mpeg2.c |  38 +-
 include/media/mpeg2-ctrls.h                   |  36 +-
 7 files changed, 1055 insertions(+), 142 deletions(-)
 create mode 100644 drivers/media/v4l2-core/v4l2-async-core.c

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst 
b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index d9546f0aa2e8..7d5ac7fb6579 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -1654,13 +1654,28 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
       - ``profile_and_level_indication``
       - The current profile and level indication as extracted from the
        bitstream.
-    * - __u8
-      - ``progressive_sequence``
-      - Indication that all the frames for the sequence are progressive instead
-       of interlaced.
     * - __u8
       - ``chroma_format``
       - The chrominance sub-sampling format (1: 4:2:0, 2: 4:2:2, 3: 4:4:4).
+    * - __u32
+      - ``flags``
+      - See :ref:`MPEG-2 Sequence Flags <mpeg2_sequence_flags>`.
+
+.. _mpeg2_sequence_flags:
+
+``MPEG-2 Sequence Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE``
+      - 0x00000001
+      - Indication that all the frames for the sequence are progressive instead
+       of interlaced.
 
 .. c:type:: v4l2_mpeg2_picture
 
@@ -1693,29 +1708,45 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
       - ``picture_structure``
       - Picture structure (1: interlaced top field, 2: interlaced bottom field,
        3: progressive frame).
-    * - __u8
-      - ``top_field_first``
-      - If set to 1 and interlaced stream, top field is output first.
-    * - __u8
-      - ``frame_pred_frame_dct``
-      - If set to 1, only frame-DCT and frame prediction are used.
-    * - __u8
-      - ``concealment_motion_vectors``
-      -  If set to 1, motion vectors are coded for intra macroblocks.
-    * - __u8
-      - ``q_scale_type``
+    * - __u32
+      - ``flags``
+      - See :ref:`MPEG-2 Picture Flags <mpeg2_picture_flags>`.
+
+
+.. _mpeg2_picture_flags:
+
+``MPEG-2 Picture Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST``
+      - 0x00000001
+      - If set and it's an interlaced stream, top field is output first.
+    * - ``V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT``
+      - 0x00000002
+      - If set only frame-DCT and frame prediction are used.
+    * - ``V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV``
+      - 0x00000004
+      -  If set motion vectors are coded for intra macroblocks.
+    * - ``V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE``
+      - 0x00000008
       - This flag affects the inverse quantization process.
-    * - __u8
-      - ``intra_vlc_format``
+    * - ``V4L2_MPEG2_PIC_FLAG_INTRA_VLC``
+      - 0x00000010
       - This flag affects the decoding of transform coefficient data.
-    * - __u8
-      - ``alternate_scan``
+    * - ``V4L2_MPEG2_PIC_FLAG_ALT_SCAN``
+      - 0x00000020
       - This flag affects the decoding of transform coefficient data.
-    * - __u8
-      - ``repeat_first_field``
+    * - ``V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST``
+      - 0x00000040
       - This flag affects the decoding process of progressive frames.
-    * - __u16
-      - ``progressive_frame``
+    * - ``V4L2_MPEG2_PIC_FLAG_PROGRESSIVE``
+      - 0x00000080
       - Indicates whether the current frame is progressive.
 
 .. raw:: latex
diff --git a/drivers/media/v4l2-core/v4l2-async-core.c 
b/drivers/media/v4l2-core/v4l2-async-core.c
new file mode 100644
index 000000000000..cd9e78c63791
--- /dev/null
+++ b/drivers/media/v4l2-core/v4l2-async-core.c
@@ -0,0 +1,880 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * V4L2 asynchronous subdevice registration API
+ *
+ * Copyright (C) 2012-2013, Guennadi Liakhovetski <[email protected]>
+ */
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <media/v4l2-async.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-subdev.h>
+
+static int v4l2_async_notifier_call_bound(struct v4l2_async_notifier *n,
+                                         struct v4l2_subdev *subdev,
+                                         struct v4l2_async_subdev *asd)
+{
+       if (!n->ops || !n->ops->bound)
+               return 0;
+
+       return n->ops->bound(n, subdev, asd);
+}
+
+static void v4l2_async_notifier_call_unbind(struct v4l2_async_notifier *n,
+                                           struct v4l2_subdev *subdev,
+                                           struct v4l2_async_subdev *asd)
+{
+       if (!n->ops || !n->ops->unbind)
+               return;
+
+       n->ops->unbind(n, subdev, asd);
+}
+
+static int v4l2_async_notifier_call_complete(struct v4l2_async_notifier *n)
+{
+       if (!n->ops || !n->ops->complete)
+               return 0;
+
+       return n->ops->complete(n);
+}
+
+static bool match_i2c(struct v4l2_async_notifier *notifier,
+                     struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
+{
+#if IS_ENABLED(CONFIG_I2C)
+       struct i2c_client *client = i2c_verify_client(sd->dev);
+
+       return client &&
+               asd->match.i2c.adapter_id == client->adapter->nr &&
+               asd->match.i2c.address == client->addr;
+#else
+       return false;
+#endif
+}
+
+static bool match_fwnode(struct v4l2_async_notifier *notifier,
+                        struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
+{
+       struct fwnode_handle *other_fwnode;
+       struct fwnode_handle *dev_fwnode;
+       bool asd_fwnode_is_ep;
+       bool sd_fwnode_is_ep;
+       struct device *dev;
+
+       /*
+        * Both the subdev and the async subdev can provide either an endpoint
+        * fwnode or a device fwnode. Start with the simple case of direct
+        * fwnode matching.
+        */
+       if (sd->fwnode == asd->match.fwnode)
+               return true;
+
+       /*
+        * Check the same situation for any possible secondary assigned to the
+        * subdev's fwnode
+        */
+       if (!IS_ERR_OR_NULL(sd->fwnode->secondary) &&
+           sd->fwnode->secondary == asd->match.fwnode)
+               return true;
+
+       /*
+        * Otherwise, check if the sd fwnode and the asd fwnode refer to an
+        * endpoint or a device. If they're of the same type, there's no match.
+        * Technically speaking this checks if the nodes refer to a connected
+        * endpoint, which is the simplest check that works for both OF and
+        * ACPI. This won't make a difference, as drivers should not try to
+        * match unconnected endpoints.
+        */
+       sd_fwnode_is_ep = fwnode_graph_is_endpoint(sd->fwnode);
+       asd_fwnode_is_ep = fwnode_graph_is_endpoint(asd->match.fwnode);
+
+       if (sd_fwnode_is_ep == asd_fwnode_is_ep)
+               return false;
+
+       /*
+        * The sd and asd fwnodes are of different types. Get the device fwnode
+        * parent of the endpoint fwnode, and compare it with the other fwnode.
+        */
+       if (sd_fwnode_is_ep) {
+               dev_fwnode = fwnode_graph_get_port_parent(sd->fwnode);
+               other_fwnode = asd->match.fwnode;
+       } else {
+               dev_fwnode = fwnode_graph_get_port_parent(asd->match.fwnode);
+               other_fwnode = sd->fwnode;
+       }
+
+       fwnode_handle_put(dev_fwnode);
+
+       if (dev_fwnode != other_fwnode)
+               return false;
+
+       /*
+        * We have a heterogeneous match. Retrieve the struct device of the side
+        * that matched on a device fwnode to print its driver name.
+        */
+       if (sd_fwnode_is_ep)
+               dev = notifier->v4l2_dev ? notifier->v4l2_dev->dev
+                   : notifier->sd->dev;
+       else
+               dev = sd->dev;
+
+       if (dev && dev->driver) {
+               if (sd_fwnode_is_ep)
+                       dev_warn(dev, "Driver %s uses device fwnode, incorrect 
match may occur\n",
+                                dev->driver->name);
+               dev_notice(dev, "Consider updating driver %s to match on 
endpoints\n",
+                          dev->driver->name);
+       }
+
+       return true;
+}
+
+static LIST_HEAD(subdev_list);
+static LIST_HEAD(notifier_list);
+static DEFINE_MUTEX(list_lock);
+
+static struct v4l2_async_subdev *
+v4l2_async_find_match(struct v4l2_async_notifier *notifier,
+                     struct v4l2_subdev *sd)
+{
+       bool (*match)(struct v4l2_async_notifier *notifier,
+                     struct v4l2_subdev *sd, struct v4l2_async_subdev *asd);
+       struct v4l2_async_subdev *asd;
+
+       list_for_each_entry(asd, &notifier->waiting, list) {
+               /* bus_type has been verified valid before */
+               switch (asd->match_type) {
+               case V4L2_ASYNC_MATCH_I2C:
+                       match = match_i2c;
+                       break;
+               case V4L2_ASYNC_MATCH_FWNODE:
+                       match = match_fwnode;
+                       break;
+               default:
+                       /* Cannot happen, unless someone breaks us */
+                       WARN_ON(true);
+                       return NULL;
+               }
+
+               /* match cannot be NULL here */
+               if (match(notifier, sd, asd))
+                       return asd;
+       }
+
+       return NULL;
+}
+
+/* Compare two async sub-device descriptors for equivalence */
+static bool asd_equal(struct v4l2_async_subdev *asd_x,
+                     struct v4l2_async_subdev *asd_y)
+{
+       if (asd_x->match_type != asd_y->match_type)
+               return false;
+
+       switch (asd_x->match_type) {
+       case V4L2_ASYNC_MATCH_I2C:
+               return asd_x->match.i2c.adapter_id ==
+                       asd_y->match.i2c.adapter_id &&
+                       asd_x->match.i2c.address ==
+                       asd_y->match.i2c.address;
+       case V4L2_ASYNC_MATCH_FWNODE:
+               return asd_x->match.fwnode == asd_y->match.fwnode;
+       default:
+               break;
+       }
+
+       return false;
+}
+
+/* Find the sub-device notifier registered by a sub-device driver. */
+static struct v4l2_async_notifier *
+v4l2_async_find_subdev_notifier(struct v4l2_subdev *sd)
+{
+       struct v4l2_async_notifier *n;
+
+       list_for_each_entry(n, &notifier_list, list)
+               if (n->sd == sd)
+                       return n;
+
+       return NULL;
+}
+
+/* Get v4l2_device related to the notifier if one can be found. */
+static struct v4l2_device *
+v4l2_async_notifier_find_v4l2_dev(struct v4l2_async_notifier *notifier)
+{
+       while (notifier->parent)
+               notifier = notifier->parent;
+
+       return notifier->v4l2_dev;
+}
+
+/*
+ * Return true if all child sub-device notifiers are complete, false otherwise.
+ */
+static bool
+v4l2_async_notifier_can_complete(struct v4l2_async_notifier *notifier)
+{
+       struct v4l2_subdev *sd;
+
+       if (!list_empty(&notifier->waiting))
+               return false;
+
+       list_for_each_entry(sd, &notifier->done, async_list) {
+               struct v4l2_async_notifier *subdev_notifier =
+                       v4l2_async_find_subdev_notifier(sd);
+
+               if (subdev_notifier &&
+                   !v4l2_async_notifier_can_complete(subdev_notifier))
+                       return false;
+       }
+
+       return true;
+}
+
+/*
+ * Complete the master notifier if possible. This is done when all async
+ * sub-devices have been bound; v4l2_device is also available then.
+ */
+static int
+v4l2_async_notifier_try_complete(struct v4l2_async_notifier *notifier)
+{
+       /* Quick check whether there are still more sub-devices here. */
+       if (!list_empty(&notifier->waiting))
+               return 0;
+
+       /* Check the entire notifier tree; find the root notifier first. */
+       while (notifier->parent)
+               notifier = notifier->parent;
+
+       /* This is root if it has v4l2_dev. */
+       if (!notifier->v4l2_dev)
+               return 0;
+
+       /* Is everything ready? */
+       if (!v4l2_async_notifier_can_complete(notifier))
+               return 0;
+
+       return v4l2_async_notifier_call_complete(notifier);
+}
+
+static int
+v4l2_async_notifier_try_all_subdevs(struct v4l2_async_notifier *notifier);
+
+static int v4l2_async_match_notify(struct v4l2_async_notifier *notifier,
+                                  struct v4l2_device *v4l2_dev,
+                                  struct v4l2_subdev *sd,
+                                  struct v4l2_async_subdev *asd)
+{
+       struct v4l2_async_notifier *subdev_notifier;
+       int ret;
+
+       ret = v4l2_device_register_subdev(v4l2_dev, sd);
+       if (ret < 0)
+               return ret;
+
+       ret = v4l2_async_notifier_call_bound(notifier, sd, asd);
+       if (ret < 0) {
+               v4l2_device_unregister_subdev(sd);
+               return ret;
+       }
+
+       /* Remove from the waiting list */
+       list_del(&asd->list);
+       sd->asd = asd;
+       sd->notifier = notifier;
+
+       /* Move from the global subdevice list to notifier's done */
+       list_move(&sd->async_list, &notifier->done);
+
+       /*
+        * See if the sub-device has a notifier. If not, return here.
+        */
+       subdev_notifier = v4l2_async_find_subdev_notifier(sd);
+       if (!subdev_notifier || subdev_notifier->parent)
+               return 0;
+
+       /*
+        * Proceed with checking for the sub-device notifier's async
+        * sub-devices, and return the result. The error will be handled by the
+        * caller.
+        */
+       subdev_notifier->parent = notifier;
+
+       return v4l2_async_notifier_try_all_subdevs(subdev_notifier);
+}
+
+/* Test all async sub-devices in a notifier for a match. */
+static int
+v4l2_async_notifier_try_all_subdevs(struct v4l2_async_notifier *notifier)
+{
+       struct v4l2_device *v4l2_dev =
+               v4l2_async_notifier_find_v4l2_dev(notifier);
+       struct v4l2_subdev *sd;
+
+       if (!v4l2_dev)
+               return 0;
+
+again:
+       list_for_each_entry(sd, &subdev_list, async_list) {
+               struct v4l2_async_subdev *asd;
+               int ret;
+
+               asd = v4l2_async_find_match(notifier, sd);
+               if (!asd)
+                       continue;
+
+               ret = v4l2_async_match_notify(notifier, v4l2_dev, sd, asd);
+               if (ret < 0)
+                       return ret;
+
+               /*
+                * v4l2_async_match_notify() may lead to registering a
+                * new notifier and thus changing the async subdevs
+                * list. In order to proceed safely from here, restart
+                * parsing the list from the beginning.
+                */
+               goto again;
+       }
+
+       return 0;
+}
+
+static void v4l2_async_cleanup(struct v4l2_subdev *sd)
+{
+       v4l2_device_unregister_subdev(sd);
+       /*
+        * Subdevice driver will reprobe and put the subdev back
+        * onto the list
+        */
+       list_del_init(&sd->async_list);
+       sd->asd = NULL;
+}
+
+/* Unbind all sub-devices in the notifier tree. */
+static void
+v4l2_async_notifier_unbind_all_subdevs(struct v4l2_async_notifier *notifier)
+{
+       struct v4l2_subdev *sd, *tmp;
+
+       list_for_each_entry_safe(sd, tmp, &notifier->done, async_list) {
+               struct v4l2_async_notifier *subdev_notifier =
+                       v4l2_async_find_subdev_notifier(sd);
+
+               if (subdev_notifier)
+                       v4l2_async_notifier_unbind_all_subdevs(subdev_notifier);
+
+               v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+               v4l2_async_cleanup(sd);
+
+               list_move(&sd->async_list, &subdev_list);
+       }
+
+       notifier->parent = NULL;
+}
+
+/* See if an async sub-device can be found in a notifier's lists. */
+static bool
+__v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
+                                      struct v4l2_async_subdev *asd)
+{
+       struct v4l2_async_subdev *asd_y;
+       struct v4l2_subdev *sd;
+
+       list_for_each_entry(asd_y, &notifier->waiting, list)
+               if (asd_equal(asd, asd_y))
+                       return true;
+
+       list_for_each_entry(sd, &notifier->done, async_list) {
+               if (WARN_ON(!sd->asd))
+                       continue;
+
+               if (asd_equal(asd, sd->asd))
+                       return true;
+       }
+
+       return false;
+}
+
+/*
+ * Find out whether an async sub-device was set up already or
+ * whether it exists in a given notifier before @this_index.
+ * If @this_index < 0, search the notifier's entire @asd_list.
+ */
+static bool
+v4l2_async_notifier_has_async_subdev(struct v4l2_async_notifier *notifier,
+                                    struct v4l2_async_subdev *asd,
+                                    int this_index)
+{
+       struct v4l2_async_subdev *asd_y;
+       int j = 0;
+
+       lockdep_assert_held(&list_lock);
+
+       /* Check that an asd is not being added more than once. */
+       list_for_each_entry(asd_y, &notifier->asd_list, asd_list) {
+               if (this_index >= 0 && j++ >= this_index)
+                       break;
+               if (asd_equal(asd, asd_y))
+                       return true;
+       }
+
+       /* Check that an asd does not exist in other notifiers. */
+       list_for_each_entry(notifier, &notifier_list, list)
+               if (__v4l2_async_notifier_has_async_subdev(notifier, asd))
+                       return true;
+
+       return false;
+}
+
+static int v4l2_async_notifier_asd_valid(struct v4l2_async_notifier *notifier,
+                                        struct v4l2_async_subdev *asd,
+                                        int this_index)
+{
+       struct device *dev =
+               notifier->v4l2_dev ? notifier->v4l2_dev->dev : NULL;
+
+       if (!asd)
+               return -EINVAL;
+
+       switch (asd->match_type) {
+       case V4L2_ASYNC_MATCH_I2C:
+       case V4L2_ASYNC_MATCH_FWNODE:
+               if (v4l2_async_notifier_has_async_subdev(notifier, asd,
+                                                        this_index)) {
+                       dev_dbg(dev, "subdev descriptor already listed in this 
or other notifiers\n");
+                       return -EEXIST;
+               }
+               break;
+       default:
+               dev_err(dev, "Invalid match type %u on %p\n",
+                       asd->match_type, asd);
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+void v4l2_async_notifier_init(struct v4l2_async_notifier *notifier)
+{
+       INIT_LIST_HEAD(&notifier->asd_list);
+}
+EXPORT_SYMBOL(v4l2_async_notifier_init);
+
+static int __v4l2_async_notifier_register(struct v4l2_async_notifier *notifier)
+{
+       struct v4l2_async_subdev *asd;
+       int ret, i = 0;
+
+       INIT_LIST_HEAD(&notifier->waiting);
+       INIT_LIST_HEAD(&notifier->done);
+
+       mutex_lock(&list_lock);
+
+       list_for_each_entry(asd, &notifier->asd_list, asd_list) {
+               ret = v4l2_async_notifier_asd_valid(notifier, asd, i++);
+               if (ret)
+                       goto err_unlock;
+
+               list_add_tail(&asd->list, &notifier->waiting);
+       }
+
+       ret = v4l2_async_notifier_try_all_subdevs(notifier);
+       if (ret < 0)
+               goto err_unbind;
+
+       ret = v4l2_async_notifier_try_complete(notifier);
+       if (ret < 0)
+               goto err_unbind;
+
+       /* Keep also completed notifiers on the list */
+       list_add(&notifier->list, &notifier_list);
+
+       mutex_unlock(&list_lock);
+
+       return 0;
+
+err_unbind:
+       /*
+        * On failure, unbind all sub-devices registered through this notifier.
+        */
+       v4l2_async_notifier_unbind_all_subdevs(notifier);
+
+err_unlock:
+       mutex_unlock(&list_lock);
+
+       return ret;
+}
+
+int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,
+                                struct v4l2_async_notifier *notifier)
+{
+       int ret;
+
+       if (WARN_ON(!v4l2_dev || notifier->sd))
+               return -EINVAL;
+
+       notifier->v4l2_dev = v4l2_dev;
+
+       ret = __v4l2_async_notifier_register(notifier);
+       if (ret)
+               notifier->v4l2_dev = NULL;
+
+       return ret;
+}
+EXPORT_SYMBOL(v4l2_async_notifier_register);
+
+int v4l2_async_subdev_notifier_register(struct v4l2_subdev *sd,
+                                       struct v4l2_async_notifier *notifier)
+{
+       int ret;
+
+       if (WARN_ON(!sd || notifier->v4l2_dev))
+               return -EINVAL;
+
+       notifier->sd = sd;
+
+       ret = __v4l2_async_notifier_register(notifier);
+       if (ret)
+               notifier->sd = NULL;
+
+       return ret;
+}
+EXPORT_SYMBOL(v4l2_async_subdev_notifier_register);
+
+static void
+__v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
+{
+       if (!notifier || (!notifier->v4l2_dev && !notifier->sd))
+               return;
+
+       v4l2_async_notifier_unbind_all_subdevs(notifier);
+
+       notifier->sd = NULL;
+       notifier->v4l2_dev = NULL;
+
+       list_del(&notifier->list);
+}
+
+void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
+{
+       mutex_lock(&list_lock);
+
+       __v4l2_async_notifier_unregister(notifier);
+
+       mutex_unlock(&list_lock);
+}
+EXPORT_SYMBOL(v4l2_async_notifier_unregister);
+
+static void __v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
+{
+       struct v4l2_async_subdev *asd, *tmp;
+
+       if (!notifier || !notifier->asd_list.next)
+               return;
+
+       list_for_each_entry_safe(asd, tmp, &notifier->asd_list, asd_list) {
+               switch (asd->match_type) {
+               case V4L2_ASYNC_MATCH_FWNODE:
+                       fwnode_handle_put(asd->match.fwnode);
+                       break;
+               default:
+                       break;
+               }
+
+               list_del(&asd->asd_list);
+               kfree(asd);
+       }
+}
+
+void v4l2_async_notifier_cleanup(struct v4l2_async_notifier *notifier)
+{
+       mutex_lock(&list_lock);
+
+       __v4l2_async_notifier_cleanup(notifier);
+
+       mutex_unlock(&list_lock);
+}
+EXPORT_SYMBOL_GPL(v4l2_async_notifier_cleanup);
+
+int __v4l2_async_notifier_add_subdev(struct v4l2_async_notifier *notifier,
+                                  struct v4l2_async_subdev *asd)
+{
+       int ret;
+
+       mutex_lock(&list_lock);
+
+       ret = v4l2_async_notifier_asd_valid(notifier, asd, -1);
+       if (ret)
+               goto unlock;
+
+       list_add_tail(&asd->asd_list, &notifier->asd_list);
+
+unlock:
+       mutex_unlock(&list_lock);
+       return ret;
+}
+EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_subdev);
+
+struct v4l2_async_subdev *
+__v4l2_async_notifier_add_fwnode_subdev(struct v4l2_async_notifier *notifier,
+                                       struct fwnode_handle *fwnode,
+                                       unsigned int asd_struct_size)
+{
+       struct v4l2_async_subdev *asd;
+       int ret;
+
+       asd = kzalloc(asd_struct_size, GFP_KERNEL);
+       if (!asd)
+               return ERR_PTR(-ENOMEM);
+
+       asd->match_type = V4L2_ASYNC_MATCH_FWNODE;
+       asd->match.fwnode = fwnode_handle_get(fwnode);
+
+       ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+       if (ret) {
+               fwnode_handle_put(fwnode);
+               kfree(asd);
+               return ERR_PTR(ret);
+       }
+
+       return asd;
+}
+EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_fwnode_subdev);
+
+struct v4l2_async_subdev *
+__v4l2_async_notifier_add_fwnode_remote_subdev(struct v4l2_async_notifier 
*notif,
+                                              struct fwnode_handle *endpoint,
+                                              unsigned int asd_struct_size)
+{
+       struct v4l2_async_subdev *asd;
+       struct fwnode_handle *remote;
+
+       remote = fwnode_graph_get_remote_port_parent(endpoint);
+       if (!remote)
+               return ERR_PTR(-ENOTCONN);
+
+       asd = __v4l2_async_notifier_add_fwnode_subdev(notif, remote,
+                                                     asd_struct_size);
+       /*
+        * Calling __v4l2_async_notifier_add_fwnode_subdev grabs a refcount,
+        * so drop the one we got in fwnode_graph_get_remote_port_parent.
+        */
+       fwnode_handle_put(remote);
+       return asd;
+}
+EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_fwnode_remote_subdev);
+
+struct v4l2_async_subdev *
+__v4l2_async_notifier_add_i2c_subdev(struct v4l2_async_notifier *notifier,
+                                    int adapter_id, unsigned short address,
+                                    unsigned int asd_struct_size)
+{
+       struct v4l2_async_subdev *asd;
+       int ret;
+
+       asd = kzalloc(asd_struct_size, GFP_KERNEL);
+       if (!asd)
+               return ERR_PTR(-ENOMEM);
+
+       asd->match_type = V4L2_ASYNC_MATCH_I2C;
+       asd->match.i2c.adapter_id = adapter_id;
+       asd->match.i2c.address = address;
+
+       ret = __v4l2_async_notifier_add_subdev(notifier, asd);
+       if (ret) {
+               kfree(asd);
+               return ERR_PTR(ret);
+       }
+
+       return asd;
+}
+EXPORT_SYMBOL_GPL(__v4l2_async_notifier_add_i2c_subdev);
+
+int v4l2_async_register_subdev(struct v4l2_subdev *sd)
+{
+       struct v4l2_async_notifier *subdev_notifier;
+       struct v4l2_async_notifier *notifier;
+       int ret;
+
+       /*
+        * No reference taken. The reference is held by the device
+        * (struct v4l2_subdev.dev), and async sub-device does not
+        * exist independently of the device at any point of time.
+        */
+       if (!sd->fwnode && sd->dev)
+               sd->fwnode = dev_fwnode(sd->dev);
+
+       mutex_lock(&list_lock);
+
+       INIT_LIST_HEAD(&sd->async_list);
+
+       list_for_each_entry(notifier, &notifier_list, list) {
+               struct v4l2_device *v4l2_dev =
+                       v4l2_async_notifier_find_v4l2_dev(notifier);
+               struct v4l2_async_subdev *asd;
+
+               if (!v4l2_dev)
+                       continue;
+
+               asd = v4l2_async_find_match(notifier, sd);
+               if (!asd)
+                       continue;
+
+               ret = v4l2_async_match_notify(notifier, v4l2_dev, sd, asd);
+               if (ret)
+                       goto err_unbind;
+
+               ret = v4l2_async_notifier_try_complete(notifier);
+               if (ret)
+                       goto err_unbind;
+
+               goto out_unlock;
+       }
+
+       /* None matched, wait for hot-plugging */
+       list_add(&sd->async_list, &subdev_list);
+
+out_unlock:
+       mutex_unlock(&list_lock);
+
+       return 0;
+
+err_unbind:
+       /*
+        * Complete failed. Unbind the sub-devices bound through registering
+        * this async sub-device.
+        */
+       subdev_notifier = v4l2_async_find_subdev_notifier(sd);
+       if (subdev_notifier)
+               v4l2_async_notifier_unbind_all_subdevs(subdev_notifier);
+
+       if (sd->asd)
+               v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+       v4l2_async_cleanup(sd);
+
+       mutex_unlock(&list_lock);
+
+       return ret;
+}
+EXPORT_SYMBOL(v4l2_async_register_subdev);
+
+void v4l2_async_unregister_subdev(struct v4l2_subdev *sd)
+{
+       if (!sd->async_list.next)
+               return;
+
+       mutex_lock(&list_lock);
+
+       __v4l2_async_notifier_unregister(sd->subdev_notifier);
+       __v4l2_async_notifier_cleanup(sd->subdev_notifier);
+       kfree(sd->subdev_notifier);
+       sd->subdev_notifier = NULL;
+
+       if (sd->asd) {
+               struct v4l2_async_notifier *notifier = sd->notifier;
+
+               list_add(&sd->asd->list, &notifier->waiting);
+
+               v4l2_async_notifier_call_unbind(notifier, sd, sd->asd);
+       }
+
+       v4l2_async_cleanup(sd);
+
+       mutex_unlock(&list_lock);
+}
+EXPORT_SYMBOL(v4l2_async_unregister_subdev);
+
+static void print_waiting_subdev(struct seq_file *s,
+                                struct v4l2_async_subdev *asd)
+{
+       switch (asd->match_type) {
+       case V4L2_ASYNC_MATCH_I2C:
+               seq_printf(s, " [i2c] dev=%d-%04x\n", asd->match.i2c.adapter_id,
+                          asd->match.i2c.address);
+               break;
+       case V4L2_ASYNC_MATCH_FWNODE: {
+               struct fwnode_handle *devnode, *fwnode = asd->match.fwnode;
+
+               devnode = fwnode_graph_is_endpoint(fwnode) ?
+                         fwnode_graph_get_port_parent(fwnode) :
+                         fwnode_handle_get(fwnode);
+
+               seq_printf(s, " [fwnode] dev=%s, node=%pfw\n",
+                          devnode->dev ? dev_name(devnode->dev) : "nil",
+                          fwnode);
+
+               fwnode_handle_put(devnode);
+               break;
+       }
+       }
+}
+
+static const char *
+v4l2_async_notifier_name(struct v4l2_async_notifier *notifier)
+{
+       if (notifier->v4l2_dev)
+               return notifier->v4l2_dev->name;
+       else if (notifier->sd)
+               return notifier->sd->name;
+       else
+               return "nil";
+}
+
+static int pending_subdevs_show(struct seq_file *s, void *data)
+{
+       struct v4l2_async_notifier *notif;
+       struct v4l2_async_subdev *asd;
+
+       mutex_lock(&list_lock);
+
+       list_for_each_entry(notif, &notifier_list, list) {
+               seq_printf(s, "%s:\n", v4l2_async_notifier_name(notif));
+               list_for_each_entry(asd, &notif->waiting, list)
+                       print_waiting_subdev(s, asd);
+       }
+
+       mutex_unlock(&list_lock);
+
+       return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(pending_subdevs);
+
+static struct dentry *v4l2_async_debugfs_dir;
+
+static int __init v4l2_async_init(void)
+{
+       v4l2_async_debugfs_dir = debugfs_create_dir("v4l2-async", NULL);
+       debugfs_create_file("pending_async_subdevices", 0444,
+                           v4l2_async_debugfs_dir, NULL,
+                           &pending_subdevs_fops);
+
+       return 0;
+}
+
+static void __exit v4l2_async_exit(void)
+{
+       debugfs_remove_recursive(v4l2_async_debugfs_dir);
+}
+
+subsys_initcall(v4l2_async_init);
+module_exit(v4l2_async_exit);
+
+MODULE_AUTHOR("Guennadi Liakhovetski <[email protected]>");
+MODULE_AUTHOR("Sakari Ailus <[email protected]>");
+MODULE_AUTHOR("Ezequiel Garcia <[email protected]>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c 
b/drivers/media/v4l2-core/v4l2-ctrls.c
index 5d92a2b33a6e..99064683cfb5 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1691,7 +1691,7 @@ static void std_init_compound(const struct v4l2_ctrl 
*ctrl, u32 idx,
                /* interlaced top field */
                p_mpeg2_slice_params->picture.picture_structure = 1;
                p_mpeg2_slice_params->picture.picture_coding_type =
-                                       V4L2_MPEG2_PICTURE_CODING_TYPE_I;
+                                       V4L2_MPEG2_PIC_CODING_TYPE_I;
                break;
        case V4L2_CTRL_TYPE_MPEG2_QUANTISATION:
                p_mpeg2_quant = p;
@@ -1901,18 +1901,18 @@ static int std_validate_compound(const struct v4l2_ctrl 
*ctrl, u32 idx,
                }
 
                switch (p_mpeg2_slice_params->picture.picture_structure) {
-               case 1: /* interlaced top field */
-               case 2: /* interlaced bottom field */
-               case 3: /* progressive */
+               case V4L2_MPEG2_PIC_TOP_FIELD:
+               case V4L2_MPEG2_PIC_BOTTOM_FIELD:
+               case V4L2_MPEG2_PIC_FRAME:
                        break;
                default:
                        return -EINVAL;
                }
 
                switch (p_mpeg2_slice_params->picture.picture_coding_type) {
-               case V4L2_MPEG2_PICTURE_CODING_TYPE_I:
-               case V4L2_MPEG2_PICTURE_CODING_TYPE_P:
-               case V4L2_MPEG2_PICTURE_CODING_TYPE_B:
+               case V4L2_MPEG2_PIC_CODING_TYPE_I:
+               case V4L2_MPEG2_PIC_CODING_TYPE_P:
+               case V4L2_MPEG2_PIC_CODING_TYPE_B:
                        break;
                default:
                        return -EINVAL;
diff --git a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c 
b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
index dedb5c502ae0..6ef7ded863b2 100644
--- a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
@@ -77,10 +77,6 @@
 
 #define G1_REG_APF_THRESHOLD(v)                (((v) << 0) & GENMASK(13, 0))
 
-#define PICT_TOP_FIELD     1
-#define PICT_BOTTOM_FIELD  2
-#define PICT_FRAME         3
-
 static void
 hantro_g1_mpeg2_dec_set_quantisation(struct hantro_dev *vpu,
                                     struct hantro_ctx *ctx)
@@ -96,19 +92,19 @@ static void
 hantro_g1_mpeg2_dec_set_buffers(struct hantro_dev *vpu, struct hantro_ctx *ctx,
                                struct vb2_buffer *src_buf,
                                struct vb2_buffer *dst_buf,
-                               const struct v4l2_mpeg2_sequence *sequence,
-                               const struct v4l2_mpeg2_picture *picture,
+                               const struct v4l2_mpeg2_sequence *seq,
+                               const struct v4l2_mpeg2_picture *pic,
                                const struct v4l2_ctrl_mpeg2_slice_params 
*slice_params)
 {
        dma_addr_t forward_addr = 0, backward_addr = 0;
        dma_addr_t current_addr, addr;
 
-       switch (picture->picture_coding_type) {
-       case V4L2_MPEG2_PICTURE_CODING_TYPE_B:
+       switch (pic->picture_coding_type) {
+       case V4L2_MPEG2_PIC_CODING_TYPE_B:
                backward_addr = hantro_get_ref(ctx,
                                               slice_params->backward_ref_ts);
                fallthrough;
-       case V4L2_MPEG2_PICTURE_CODING_TYPE_P:
+       case V4L2_MPEG2_PIC_CODING_TYPE_P:
                forward_addr = hantro_get_ref(ctx,
                                              slice_params->forward_ref_ts);
        }
@@ -121,7 +117,7 @@ hantro_g1_mpeg2_dec_set_buffers(struct hantro_dev *vpu, 
struct hantro_ctx *ctx,
        addr = hantro_get_dec_buf_addr(ctx, dst_buf);
        current_addr = addr;
 
-       if (picture->picture_structure == PICT_BOTTOM_FIELD)
+       if (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD)
                addr += ALIGN(ctx->dst_fmt.width, 16);
        vdpu_write_relaxed(vpu, addr, G1_REG_DEC_OUT_BASE);
 
@@ -131,18 +127,18 @@ hantro_g1_mpeg2_dec_set_buffers(struct hantro_dev *vpu, 
struct hantro_ctx *ctx,
                backward_addr = current_addr;
 
        /* Set forward ref frame (top/bottom field) */
-       if (picture->picture_structure == PICT_FRAME ||
-           picture->picture_coding_type == V4L2_MPEG2_PICTURE_CODING_TYPE_B ||
-           (picture->picture_structure == PICT_TOP_FIELD &&
-            picture->top_field_first) ||
-           (picture->picture_structure == PICT_BOTTOM_FIELD &&
-            !picture->top_field_first)) {
+       if (pic->picture_structure == V4L2_MPEG2_PIC_FRAME ||
+           pic->picture_coding_type == V4L2_MPEG2_PIC_CODING_TYPE_B ||
+           (pic->picture_structure == V4L2_MPEG2_PIC_TOP_FIELD &&
+            pic->flags & V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST) ||
+           (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD &&
+            !(pic->flags & V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST))) {
                vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER0_BASE);
                vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER1_BASE);
-       } else if (picture->picture_structure == PICT_TOP_FIELD) {
+       } else if (pic->picture_structure == V4L2_MPEG2_PIC_TOP_FIELD) {
                vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER0_BASE);
                vdpu_write_relaxed(vpu, current_addr, G1_REG_REFER1_BASE);
-       } else if (picture->picture_structure == PICT_BOTTOM_FIELD) {
+       } else if (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD) {
                vdpu_write_relaxed(vpu, current_addr, G1_REG_REFER0_BASE);
                vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER1_BASE);
        }
@@ -157,8 +153,8 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
        struct hantro_dev *vpu = ctx->dev;
        struct vb2_v4l2_buffer *src_buf, *dst_buf;
        const struct v4l2_ctrl_mpeg2_slice_params *slice_params;
-       const struct v4l2_mpeg2_sequence *sequence;
-       const struct v4l2_mpeg2_picture *picture;
+       const struct v4l2_mpeg2_sequence *seq;
+       const struct v4l2_mpeg2_picture *pic;
        u32 reg;
 
        src_buf = hantro_get_src_buf(ctx);
@@ -169,8 +165,8 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
 
        slice_params = hantro_get_ctrl(ctx,
                                       V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS);
-       sequence = &slice_params->sequence;
-       picture = &slice_params->picture;
+       seq = &slice_params->sequence;
+       pic = &slice_params->picture;
 
        reg = G1_REG_DEC_AXI_RD_ID(0) |
              G1_REG_DEC_TIMEOUT_E(1) |
@@ -190,11 +186,11 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
 
        reg = G1_REG_DEC_MODE(5) |
              G1_REG_RLC_MODE_E(0) |
-             G1_REG_PIC_INTERLACE_E(!sequence->progressive_sequence) |
-             G1_REG_PIC_FIELDMODE_E(picture->picture_structure != PICT_FRAME) |
-             G1_REG_PIC_B_E(picture->picture_coding_type == 
V4L2_MPEG2_PICTURE_CODING_TYPE_B) |
-             G1_REG_PIC_INTER_E(picture->picture_coding_type != 
V4L2_MPEG2_PICTURE_CODING_TYPE_I) |
-             G1_REG_PIC_TOPFIELD_E(picture->picture_structure == 
PICT_TOP_FIELD) |
+             G1_REG_PIC_INTERLACE_E(!(seq->flags & 
V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE)) |
+             G1_REG_PIC_FIELDMODE_E(pic->picture_structure != 
V4L2_MPEG2_PIC_FRAME) |
+             G1_REG_PIC_B_E(pic->picture_coding_type == 
V4L2_MPEG2_PIC_CODING_TYPE_B) |
+             G1_REG_PIC_INTER_E(pic->picture_coding_type != 
V4L2_MPEG2_PIC_CODING_TYPE_I) |
+             G1_REG_PIC_TOPFIELD_E(pic->picture_structure == 
V4L2_MPEG2_PIC_TOP_FIELD) |
              G1_REG_FWD_INTERLACE_E(0) |
              G1_REG_FILTERING_DIS(1) |
              G1_REG_WRITE_MVS_E(0) |
@@ -203,27 +199,27 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
 
        reg = G1_REG_PIC_MB_WIDTH(MB_WIDTH(ctx->dst_fmt.width)) |
              G1_REG_PIC_MB_HEIGHT_P(MB_HEIGHT(ctx->dst_fmt.height)) |
-             G1_REG_ALT_SCAN_E(picture->alternate_scan) |
-             G1_REG_TOPFIELDFIRST_E(picture->top_field_first);
+             G1_REG_ALT_SCAN_E(pic->flags & V4L2_MPEG2_PIC_FLAG_ALT_SCAN) |
+             G1_REG_TOPFIELDFIRST_E(pic->flags & 
V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST);
        vdpu_write_relaxed(vpu, reg, G1_SWREG(4));
 
        reg = G1_REG_STRM_START_BIT(slice_params->data_bit_offset) |
-             G1_REG_QSCALE_TYPE(picture->q_scale_type) |
-             G1_REG_CON_MV_E(picture->concealment_motion_vectors) |
-             G1_REG_INTRA_DC_PREC(picture->intra_dc_precision) |
-             G1_REG_INTRA_VLC_TAB(picture->intra_vlc_format) |
-             G1_REG_FRAME_PRED_DCT(picture->frame_pred_frame_dct);
+             G1_REG_QSCALE_TYPE(pic->flags & V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE) 
|
+             G1_REG_CON_MV_E(pic->flags & V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV) |
+             G1_REG_INTRA_DC_PREC(pic->intra_dc_precision) |
+             G1_REG_INTRA_VLC_TAB(pic->flags & V4L2_MPEG2_PIC_FLAG_INTRA_VLC) |
+             G1_REG_FRAME_PRED_DCT(pic->flags & 
V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT);
        vdpu_write_relaxed(vpu, reg, G1_SWREG(5));
 
        reg = G1_REG_INIT_QP(1) |
              G1_REG_STREAM_LEN(slice_params->bit_size >> 3);
        vdpu_write_relaxed(vpu, reg, G1_SWREG(6));
 
-       reg = G1_REG_ALT_SCAN_FLAG_E(picture->alternate_scan) |
-             G1_REG_FCODE_FWD_HOR(picture->f_code[0][0]) |
-             G1_REG_FCODE_FWD_VER(picture->f_code[0][1]) |
-             G1_REG_FCODE_BWD_HOR(picture->f_code[1][0]) |
-             G1_REG_FCODE_BWD_VER(picture->f_code[1][1]) |
+       reg = G1_REG_ALT_SCAN_FLAG_E(pic->flags & V4L2_MPEG2_PIC_FLAG_ALT_SCAN) 
|
+             G1_REG_FCODE_FWD_HOR(pic->f_code[0][0]) |
+             G1_REG_FCODE_FWD_VER(pic->f_code[0][1]) |
+             G1_REG_FCODE_BWD_HOR(pic->f_code[1][0]) |
+             G1_REG_FCODE_BWD_VER(pic->f_code[1][1]) |
              G1_REG_MV_ACCURACY_FWD(1) |
              G1_REG_MV_ACCURACY_BWD(1);
        vdpu_write_relaxed(vpu, reg, G1_SWREG(18));
@@ -239,7 +235,7 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
 
        hantro_g1_mpeg2_dec_set_buffers(vpu, ctx, &src_buf->vb2_buf,
                                        &dst_buf->vb2_buf,
-                                       sequence, picture, slice_params);
+                                       seq, pic, slice_params);
 
        hantro_end_prepare_run(ctx);
 
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c 
b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
index 61a54549774d..ff54398f6643 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
@@ -79,10 +79,6 @@
 #define VDPU_REG_MV_ACCURACY_FWD(v)    ((v) ? BIT(2) : 0)
 #define VDPU_REG_MV_ACCURACY_BWD(v)    ((v) ? BIT(1) : 0)
 
-#define PICT_TOP_FIELD     1
-#define PICT_BOTTOM_FIELD  2
-#define PICT_FRAME         3
-
 static void
 rk3399_vpu_mpeg2_dec_set_quantisation(struct hantro_dev *vpu,
                                      struct hantro_ctx *ctx)
@@ -99,19 +95,19 @@ rk3399_vpu_mpeg2_dec_set_buffers(struct hantro_dev *vpu,
                                 struct hantro_ctx *ctx,
                                 struct vb2_buffer *src_buf,
                                 struct vb2_buffer *dst_buf,
-                                const struct v4l2_mpeg2_sequence *sequence,
-                                const struct v4l2_mpeg2_picture *picture,
+                                const struct v4l2_mpeg2_sequence *seq,
+                                const struct v4l2_mpeg2_picture *pic,
                                 const struct v4l2_ctrl_mpeg2_slice_params 
*slice_params)
 {
        dma_addr_t forward_addr = 0, backward_addr = 0;
        dma_addr_t current_addr, addr;
 
-       switch (picture->picture_coding_type) {
-       case V4L2_MPEG2_PICTURE_CODING_TYPE_B:
+       switch (pic->picture_coding_type) {
+       case V4L2_MPEG2_PIC_CODING_TYPE_B:
                backward_addr = hantro_get_ref(ctx,
                                               slice_params->backward_ref_ts);
                fallthrough;
-       case V4L2_MPEG2_PICTURE_CODING_TYPE_P:
+       case V4L2_MPEG2_PIC_CODING_TYPE_P:
                forward_addr = hantro_get_ref(ctx,
                                              slice_params->forward_ref_ts);
        }
@@ -124,7 +120,7 @@ rk3399_vpu_mpeg2_dec_set_buffers(struct hantro_dev *vpu,
        addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
        current_addr = addr;
 
-       if (picture->picture_structure == PICT_BOTTOM_FIELD)
+       if (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD)
                addr += ALIGN(ctx->dst_fmt.width, 16);
        vdpu_write_relaxed(vpu, addr, VDPU_REG_DEC_OUT_BASE);
 
@@ -134,18 +130,18 @@ rk3399_vpu_mpeg2_dec_set_buffers(struct hantro_dev *vpu,
                backward_addr = current_addr;
 
        /* Set forward ref frame (top/bottom field) */
-       if (picture->picture_structure == PICT_FRAME ||
-           picture->picture_coding_type == V4L2_MPEG2_PICTURE_CODING_TYPE_B ||
-           (picture->picture_structure == PICT_TOP_FIELD &&
-            picture->top_field_first) ||
-           (picture->picture_structure == PICT_BOTTOM_FIELD &&
-            !picture->top_field_first)) {
+       if (pic->picture_structure == V4L2_MPEG2_PIC_FRAME ||
+           pic->picture_coding_type == V4L2_MPEG2_PIC_CODING_TYPE_B ||
+           (pic->picture_structure == V4L2_MPEG2_PIC_TOP_FIELD &&
+            pic->flags & V4L2_MPEG2_PIC_TOP_FIELD) ||
+           (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD &&
+            !(pic->flags & V4L2_MPEG2_PIC_TOP_FIELD))) {
                vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER0_BASE);
                vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER1_BASE);
-       } else if (picture->picture_structure == PICT_TOP_FIELD) {
+       } else if (pic->picture_structure == V4L2_MPEG2_PIC_TOP_FIELD) {
                vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER0_BASE);
                vdpu_write_relaxed(vpu, current_addr, VDPU_REG_REFER1_BASE);
-       } else if (picture->picture_structure == PICT_BOTTOM_FIELD) {
+       } else if (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD) {
                vdpu_write_relaxed(vpu, current_addr, VDPU_REG_REFER0_BASE);
                vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER1_BASE);
        }
@@ -160,8 +156,8 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
        struct hantro_dev *vpu = ctx->dev;
        struct vb2_v4l2_buffer *src_buf, *dst_buf;
        const struct v4l2_ctrl_mpeg2_slice_params *slice_params;
-       const struct v4l2_mpeg2_sequence *sequence;
-       const struct v4l2_mpeg2_picture *picture;
+       const struct v4l2_mpeg2_sequence *seq;
+       const struct v4l2_mpeg2_picture *pic;
        u32 reg;
 
        src_buf = hantro_get_src_buf(ctx);
@@ -171,8 +167,8 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
 
        slice_params = hantro_get_ctrl(ctx,
                                       V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS);
-       sequence = &slice_params->sequence;
-       picture = &slice_params->picture;
+       seq = &slice_params->sequence;
+       pic = &slice_params->picture;
 
        reg = VDPU_REG_DEC_ADV_PRE_DIS(0) |
              VDPU_REG_DEC_SCMD_DIS(0) |
@@ -207,11 +203,11 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
        vdpu_write_relaxed(vpu, reg, VDPU_SWREG(56));
 
        reg = VDPU_REG_RLC_MODE_E(0) |
-             VDPU_REG_PIC_INTERLACE_E(!sequence->progressive_sequence) |
-             VDPU_REG_PIC_FIELDMODE_E(picture->picture_structure != 
PICT_FRAME) |
-             VDPU_REG_PIC_B_E(picture->picture_coding_type == 
V4L2_MPEG2_PICTURE_CODING_TYPE_B) |
-             VDPU_REG_PIC_INTER_E(picture->picture_coding_type != 
V4L2_MPEG2_PICTURE_CODING_TYPE_I) |
-             VDPU_REG_PIC_TOPFIELD_E(picture->picture_structure == 
PICT_TOP_FIELD) |
+             VDPU_REG_PIC_INTERLACE_E(!(seq->flags & 
V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE)) |
+             VDPU_REG_PIC_FIELDMODE_E(pic->picture_structure != 
V4L2_MPEG2_PIC_FRAME) |
+             VDPU_REG_PIC_B_E(pic->picture_coding_type == 
V4L2_MPEG2_PIC_CODING_TYPE_B) |
+             VDPU_REG_PIC_INTER_E(pic->picture_coding_type != 
V4L2_MPEG2_PIC_CODING_TYPE_I) |
+             VDPU_REG_PIC_TOPFIELD_E(pic->picture_structure == 
V4L2_MPEG2_PIC_TOP_FIELD) |
              VDPU_REG_FWD_INTERLACE_E(0) |
              VDPU_REG_WRITE_MVS_E(0) |
              VDPU_REG_DEC_TIMEOUT_E(1) |
@@ -220,23 +216,23 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
 
        reg = VDPU_REG_PIC_MB_WIDTH(MB_WIDTH(ctx->dst_fmt.width)) |
              VDPU_REG_PIC_MB_HEIGHT_P(MB_HEIGHT(ctx->dst_fmt.height)) |
-             VDPU_REG_ALT_SCAN_E(picture->alternate_scan) |
-             VDPU_REG_TOPFIELDFIRST_E(picture->top_field_first);
+             VDPU_REG_ALT_SCAN_E(pic->flags & V4L2_MPEG2_PIC_FLAG_ALT_SCAN) |
+             VDPU_REG_TOPFIELDFIRST_E(pic->flags & 
V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST);
        vdpu_write_relaxed(vpu, reg, VDPU_SWREG(120));
 
        reg = VDPU_REG_STRM_START_BIT(slice_params->data_bit_offset) |
-             VDPU_REG_QSCALE_TYPE(picture->q_scale_type) |
-             VDPU_REG_CON_MV_E(picture->concealment_motion_vectors) |
-             VDPU_REG_INTRA_DC_PREC(picture->intra_dc_precision) |
-             VDPU_REG_INTRA_VLC_TAB(picture->intra_vlc_format) |
-             VDPU_REG_FRAME_PRED_DCT(picture->frame_pred_frame_dct);
+             VDPU_REG_QSCALE_TYPE(pic->flags & 
V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE) |
+             VDPU_REG_CON_MV_E(pic->flags & 
V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV) |
+             VDPU_REG_INTRA_DC_PREC(pic->intra_dc_precision) |
+             VDPU_REG_INTRA_VLC_TAB(pic->flags & 
V4L2_MPEG2_PIC_FLAG_INTRA_VLC) |
+             VDPU_REG_FRAME_PRED_DCT(pic->flags & 
V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT);
        vdpu_write_relaxed(vpu, reg, VDPU_SWREG(122));
 
-       reg = VDPU_REG_ALT_SCAN_FLAG_E(picture->alternate_scan) |
-             VDPU_REG_FCODE_FWD_HOR(picture->f_code[0][0]) |
-             VDPU_REG_FCODE_FWD_VER(picture->f_code[0][1]) |
-             VDPU_REG_FCODE_BWD_HOR(picture->f_code[1][0]) |
-             VDPU_REG_FCODE_BWD_VER(picture->f_code[1][1]) |
+       reg = VDPU_REG_ALT_SCAN_FLAG_E(pic->flags & 
V4L2_MPEG2_PIC_FLAG_ALT_SCAN) |
+             VDPU_REG_FCODE_FWD_HOR(pic->f_code[0][0]) |
+             VDPU_REG_FCODE_FWD_VER(pic->f_code[0][1]) |
+             VDPU_REG_FCODE_BWD_HOR(pic->f_code[1][0]) |
+             VDPU_REG_FCODE_BWD_VER(pic->f_code[1][1]) |
              VDPU_REG_MV_ACCURACY_FWD(1) |
              VDPU_REG_MV_ACCURACY_BWD(1);
        vdpu_write_relaxed(vpu, reg, VDPU_SWREG(136));
@@ -245,7 +241,7 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
 
        rk3399_vpu_mpeg2_dec_set_buffers(vpu, ctx, &src_buf->vb2_buf,
                                         &dst_buf->vb2_buf,
-                                        sequence, picture, slice_params);
+                                        seq, pic, slice_params);
 
        /* Kick the watchdog and start decoding */
        hantro_end_prepare_run(ctx);
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c 
b/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
index e3154f631858..e39a17d28c7d 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
@@ -51,8 +51,8 @@ static void cedrus_mpeg2_irq_disable(struct cedrus_ctx *ctx)
 static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx, struct cedrus_run *run)
 {
        const struct v4l2_ctrl_mpeg2_slice_params *slice_params;
-       const struct v4l2_mpeg2_sequence *sequence;
-       const struct v4l2_mpeg2_picture *picture;
+       const struct v4l2_mpeg2_sequence *seq;
+       const struct v4l2_mpeg2_picture *pic;
        const struct v4l2_ctrl_mpeg2_quantisation *quantisation;
        dma_addr_t src_buf_addr, dst_luma_addr, dst_chroma_addr;
        dma_addr_t fwd_luma_addr, fwd_chroma_addr;
@@ -66,8 +66,8 @@ static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx, struct 
cedrus_run *run)
        u32 reg;
 
        slice_params = run->mpeg2.slice_params;
-       sequence = &slice_params->sequence;
-       picture = &slice_params->picture;
+       seq = &slice_params->sequence;
+       pic = &slice_params->picture;
 
        quantisation = run->mpeg2.quantisation;
 
@@ -94,19 +94,19 @@ static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx, 
struct cedrus_run *run)
 
        /* Set MPEG picture header. */
 
-       reg = VE_DEC_MPEG_MP12HDR_SLICE_TYPE(picture->picture_coding_type);
-       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(0, 0, picture->f_code[0][0]);
-       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(0, 1, picture->f_code[0][1]);
-       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(1, 0, picture->f_code[1][0]);
-       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(1, 1, picture->f_code[1][1]);
-       reg |= 
VE_DEC_MPEG_MP12HDR_INTRA_DC_PRECISION(picture->intra_dc_precision);
-       reg |= 
VE_DEC_MPEG_MP12HDR_INTRA_PICTURE_STRUCTURE(picture->picture_structure);
-       reg |= VE_DEC_MPEG_MP12HDR_TOP_FIELD_FIRST(picture->top_field_first);
-       reg |= 
VE_DEC_MPEG_MP12HDR_FRAME_PRED_FRAME_DCT(picture->frame_pred_frame_dct);
-       reg |= 
VE_DEC_MPEG_MP12HDR_CONCEALMENT_MOTION_VECTORS(picture->concealment_motion_vectors);
-       reg |= VE_DEC_MPEG_MP12HDR_Q_SCALE_TYPE(picture->q_scale_type);
-       reg |= VE_DEC_MPEG_MP12HDR_INTRA_VLC_FORMAT(picture->intra_vlc_format);
-       reg |= VE_DEC_MPEG_MP12HDR_ALTERNATE_SCAN(picture->alternate_scan);
+       reg = VE_DEC_MPEG_MP12HDR_SLICE_TYPE(pic->picture_coding_type);
+       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(0, 0, pic->f_code[0][0]);
+       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(0, 1, pic->f_code[0][1]);
+       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(1, 0, pic->f_code[1][0]);
+       reg |= VE_DEC_MPEG_MP12HDR_F_CODE(1, 1, pic->f_code[1][1]);
+       reg |= VE_DEC_MPEG_MP12HDR_INTRA_DC_PRECISION(pic->intra_dc_precision);
+       reg |= 
VE_DEC_MPEG_MP12HDR_INTRA_PICTURE_STRUCTURE(pic->picture_structure);
+       reg |= VE_DEC_MPEG_MP12HDR_TOP_FIELD_FIRST(pic->flags & 
V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST);
+       reg |= VE_DEC_MPEG_MP12HDR_FRAME_PRED_FRAME_DCT(pic->flags & 
V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT);
+       reg |= VE_DEC_MPEG_MP12HDR_CONCEALMENT_MOTION_VECTORS(pic->flags & 
V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV);
+       reg |= VE_DEC_MPEG_MP12HDR_Q_SCALE_TYPE(pic->flags & 
V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE);
+       reg |= VE_DEC_MPEG_MP12HDR_INTRA_VLC_FORMAT(pic->flags & 
V4L2_MPEG2_PIC_FLAG_INTRA_VLC);
+       reg |= VE_DEC_MPEG_MP12HDR_ALTERNATE_SCAN(pic->flags & 
V4L2_MPEG2_PIC_FLAG_ALT_SCAN);
        reg |= VE_DEC_MPEG_MP12HDR_FULL_PEL_FORWARD_VECTOR(0);
        reg |= VE_DEC_MPEG_MP12HDR_FULL_PEL_BACKWARD_VECTOR(0);
 
@@ -114,8 +114,8 @@ static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx, 
struct cedrus_run *run)
 
        /* Set frame dimensions. */
 
-       reg = VE_DEC_MPEG_PICCODEDSIZE_WIDTH(sequence->horizontal_size);
-       reg |= VE_DEC_MPEG_PICCODEDSIZE_HEIGHT(sequence->vertical_size);
+       reg = VE_DEC_MPEG_PICCODEDSIZE_WIDTH(seq->horizontal_size);
+       reg |= VE_DEC_MPEG_PICCODEDSIZE_HEIGHT(seq->vertical_size);
 
        cedrus_write(dev, VE_DEC_MPEG_PICCODEDSIZE, reg);
 
diff --git a/include/media/mpeg2-ctrls.h b/include/media/mpeg2-ctrls.h
index 8ea2c7f3a172..d3190979d574 100644
--- a/include/media/mpeg2-ctrls.h
+++ b/include/media/mpeg2-ctrls.h
@@ -18,10 +18,7 @@
 #define V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS 0x0103
 #define        V4L2_CTRL_TYPE_MPEG2_QUANTISATION 0x0104
 
-#define V4L2_MPEG2_PICTURE_CODING_TYPE_I       1
-#define V4L2_MPEG2_PICTURE_CODING_TYPE_P       2
-#define V4L2_MPEG2_PICTURE_CODING_TYPE_B       3
-#define V4L2_MPEG2_PICTURE_CODING_TYPE_D       4
+#define V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE                0x0001
 
 struct v4l2_mpeg2_sequence {
        /* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence header */
@@ -31,10 +28,29 @@ struct v4l2_mpeg2_sequence {
 
        /* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence extension */
        __u16   profile_and_level_indication;
-       __u8    progressive_sequence;
        __u8    chroma_format;
+
+       __u32   flags;
 };
 
+#define V4L2_MPEG2_PIC_CODING_TYPE_I                   1
+#define V4L2_MPEG2_PIC_CODING_TYPE_P                   2
+#define V4L2_MPEG2_PIC_CODING_TYPE_B                   3
+#define V4L2_MPEG2_PIC_CODING_TYPE_D                   4
+
+#define V4L2_MPEG2_PIC_TOP_FIELD                       0x1
+#define V4L2_MPEG2_PIC_BOTTOM_FIELD                    0x2
+#define V4L2_MPEG2_PIC_FRAME                           0x3
+
+#define V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST            0x0001
+#define V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT             0x0002
+#define V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV             0x0004
+#define V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE               0x0008
+#define V4L2_MPEG2_PIC_FLAG_INTRA_VLC                  0x0010
+#define V4L2_MPEG2_PIC_FLAG_ALT_SCAN                   0x0020
+#define V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST               0x0040
+#define V4L2_MPEG2_PIC_FLAG_PROGRESSIVE                        0x0080
+
 struct v4l2_mpeg2_picture {
        /* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture header */
        __u8    picture_coding_type;
@@ -43,14 +59,8 @@ struct v4l2_mpeg2_picture {
        __u8    f_code[2][2];
        __u8    intra_dc_precision;
        __u8    picture_structure;
-       __u8    top_field_first;
-       __u8    frame_pred_frame_dct;
-       __u8    concealment_motion_vectors;
-       __u8    q_scale_type;
-       __u8    intra_vlc_format;
-       __u8    alternate_scan;
-       __u8    repeat_first_field;
-       __u16   progressive_frame;
+
+       __u32   flags;
 };
 
 struct v4l2_ctrl_mpeg2_slice_params {
-- 
2.30.0

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