On Thu Mar 19 01:59:06 2026 +0200, Laurent Pinchart wrote:
> The V4L2 API requires drivers that expose controls to implement control
> notification events. This is enforced by v4l2-compliance. Add event
> handling to the VSP1 entities that create controls to fix the compliance
> failures.
> 
> Reviewed-by: Jacopo Mondi <[email protected]>
> Tested-by: Niklas Söderlund <[email protected]>
> Reviewed-by: Jacopo Mondi <[email protected]>
> Tested-by: Lad Prabhakar <[email protected]> # HiHope 
> RZ/G2M
> Link: 
> https://patch.msgid.link/20260318235907.831556-13-laurent.pinchart+rene...@ideasonboard.com
> Signed-off-by: Laurent Pinchart <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>

Patch committed.

Thanks,
Hans Verkuil

 drivers/media/platform/renesas/vsp1/vsp1_brx.c    | 1 +
 drivers/media/platform/renesas/vsp1/vsp1_clu.c    | 1 +
 drivers/media/platform/renesas/vsp1/vsp1_entity.c | 9 +++++++++
 drivers/media/platform/renesas/vsp1/vsp1_entity.h | 2 ++
 drivers/media/platform/renesas/vsp1/vsp1_histo.c  | 1 +
 drivers/media/platform/renesas/vsp1/vsp1_lut.c    | 1 +
 drivers/media/platform/renesas/vsp1/vsp1_rwpf.c   | 1 +
 drivers/media/platform/renesas/vsp1/vsp1_sru.c    | 1 +
 8 files changed, 17 insertions(+)

---

diff --git a/drivers/media/platform/renesas/vsp1/vsp1_brx.c 
b/drivers/media/platform/renesas/vsp1/vsp1_brx.c
index 911359faa600..b1a2c68e9944 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_brx.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_brx.c
@@ -269,6 +269,7 @@ static const struct v4l2_subdev_pad_ops brx_pad_ops = {
 };
 
 static const struct v4l2_subdev_ops brx_ops = {
+       .core   = &vsp1_entity_core_ops,
        .pad    = &brx_pad_ops,
 };
 
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_clu.c 
b/drivers/media/platform/renesas/vsp1/vsp1_clu.c
index a56c038a2c71..04c466c4da81 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_clu.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_clu.c
@@ -130,6 +130,7 @@ static const struct v4l2_subdev_pad_ops clu_pad_ops = {
 };
 
 static const struct v4l2_subdev_ops clu_ops = {
+       .core   = &vsp1_entity_core_ops,
        .pad    = &clu_pad_ops,
 };
 
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_entity.c 
b/drivers/media/platform/renesas/vsp1/vsp1_entity.c
index 892a2adfdf3a..839b75b62ceb 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_entity.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_entity.c
@@ -14,6 +14,7 @@
 
 #include <media/media-entity.h>
 #include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
 #include <media/v4l2-subdev.h>
 
 #include "vsp1.h"
@@ -396,6 +397,11 @@ static const struct v4l2_subdev_internal_ops 
vsp1_entity_internal_ops = {
        .init_state = vsp1_entity_init_state,
 };
 
+const struct v4l2_subdev_core_ops vsp1_entity_core_ops = {
+       .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
+       .unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
 /* 
-----------------------------------------------------------------------------
  * Media Operations
  */
@@ -639,6 +645,9 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct 
vsp1_entity *entity,
        subdev->entity.ops = &vsp1->media_ops;
        subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
 
+       if (ops->core == &vsp1_entity_core_ops)
+               subdev->flags |= V4L2_SUBDEV_FL_HAS_EVENTS;
+
        snprintf(subdev->name, sizeof(subdev->name), "%s %s",
                 dev_name(vsp1->dev), name);
 
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_entity.h 
b/drivers/media/platform/renesas/vsp1/vsp1_entity.h
index 88daf83cd1ab..c0c1fe7d3e40 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_entity.h
+++ b/drivers/media/platform/renesas/vsp1/vsp1_entity.h
@@ -143,6 +143,8 @@ static inline struct vsp1_entity *to_vsp1_entity(struct 
v4l2_subdev *subdev)
        return container_of(subdev, struct vsp1_entity, subdev);
 }
 
+extern const struct v4l2_subdev_core_ops vsp1_entity_core_ops;
+
 int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
                     const char *name, unsigned int num_pads,
                     const struct v4l2_subdev_ops *ops, u32 function);
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_histo.c 
b/drivers/media/platform/renesas/vsp1/vsp1_histo.c
index 79da56c456eb..3f87a2c9df0e 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_histo.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_histo.c
@@ -424,6 +424,7 @@ static const struct v4l2_subdev_pad_ops histo_pad_ops = {
 };
 
 static const struct v4l2_subdev_ops histo_ops = {
+       .core   = &vsp1_entity_core_ops,
        .pad    = &histo_pad_ops,
 };
 
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_lut.c 
b/drivers/media/platform/renesas/vsp1/vsp1_lut.c
index 2ec4d596465d..94bdedcc5c92 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_lut.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_lut.c
@@ -106,6 +106,7 @@ static const struct v4l2_subdev_pad_ops lut_pad_ops = {
 };
 
 static const struct v4l2_subdev_ops lut_ops = {
+       .core   = &vsp1_entity_core_ops,
        .pad    = &lut_pad_ops,
 };
 
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c 
b/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c
index c9e6fb98f863..c72518b29f84 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c
@@ -357,6 +357,7 @@ static const struct v4l2_subdev_pad_ops vsp1_rwpf_pad_ops = 
{
 };
 
 const struct v4l2_subdev_ops vsp1_rwpf_subdev_ops = {
+       .core   = &vsp1_entity_core_ops,
        .pad    = &vsp1_rwpf_pad_ops,
 };
 
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_sru.c 
b/drivers/media/platform/renesas/vsp1/vsp1_sru.c
index 37fd36d09045..94149da0c900 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_sru.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_sru.c
@@ -252,6 +252,7 @@ static const struct v4l2_subdev_pad_ops sru_pad_ops = {
 };
 
 static const struct v4l2_subdev_ops sru_ops = {
+       .core   = &vsp1_entity_core_ops,
        .pad    = &sru_pad_ops,
 };
 
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