diff --git a/include/libcamera/ipa/rkisp1.mojom b/include/libcamera/ipa/rkisp1.mojom
index f50f1e11..e3537385 100644
--- a/include/libcamera/ipa/rkisp1.mojom
+++ b/include/libcamera/ipa/rkisp1.mojom
@@ -23,8 +23,8 @@ interface IPARkISP1Interface {
 	mapBuffers(array<libcamera.IPABuffer> buffers);
 	unmapBuffers(array<uint32> ids);
 
-	[async] queueRequest(uint32 frame, uint32 bufferId,
-			     libcamera.ControlList reqControls);
+	[async] queueRequest(uint32 frame, libcamera.ControlList reqControls);
+	[async] fillParamsBuffer(uint32 frame, uint32 bufferId);
 	[async] processStatsBuffer(uint32 frame, uint32 bufferId,
 				   libcamera.ControlList sensorControls);
 };
diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp
index 13ab1cdc..ef1f0d56 100644
--- a/src/ipa/rkisp1/rkisp1.cpp
+++ b/src/ipa/rkisp1/rkisp1.cpp
@@ -54,8 +54,8 @@ public:
 	void mapBuffers(const std::vector<IPABuffer> &buffers) override;
 	void unmapBuffers(const std::vector<unsigned int> &ids) override;
 
-	void queueRequest(const uint32_t frame, const uint32_t bufferId,
-			  const ControlList &controls) override;
+	void queueRequest(const uint32_t frame, const ControlList &controls) override;
+	void fillParamsBuffer(const uint32_t frame, const uint32_t bufferId) override;
 	void processStatsBuffer(const uint32_t frame, const uint32_t bufferId,
 				const ControlList &sensorControls) override;
 private:
@@ -235,8 +235,13 @@ void IPARkISP1::unmapBuffers(const std::vector<unsigned int> &ids)
 	}
 }
 
-void IPARkISP1::queueRequest(const uint32_t frame, const uint32_t bufferId,
+void IPARkISP1::queueRequest([[maybe_unused]] const uint32_t frame,
 			     [[maybe_unused]] const ControlList &controls)
+{
+	/* \todo Start processing for 'frame' based on 'controls'. */
+}
+
+void IPARkISP1::fillParamsBuffer(const uint32_t frame, const uint32_t bufferId)
 {
 	rkisp1_params_cfg *params =
 		reinterpret_cast<rkisp1_params_cfg *>(
diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
index e6fc582b..1624e2ec 100644
--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
@@ -855,8 +855,9 @@ int PipelineHandlerRkISP1::queueRequestDevice(Camera *camera, Request *request)
 	if (!info)
 		return -ENOENT;
 
-	data->ipa_->queueRequest(data->frame_, info->paramBuffer->cookie(),
-				 request->controls());
+	data->ipa_->queueRequest(data->frame_, request->controls());
+	data->ipa_->fillParamsBuffer(data->frame_, info->paramBuffer->cookie());
+
 	data->frame_++;
 
 	return 0;