libcamera: camera: Constify controls argument to start()

The ControlList passed to the Camera::start() function isn't modified.
Make it const.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index ff980b38..5c458cb6 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -126,7 +126,7 @@ public:
 	int exportFrameBuffers(Camera *camera, Stream *stream,
 			       std::vector<std::unique_ptr<FrameBuffer>> *buffers) override;
 
-	int start(Camera *camera, ControlList *controls) override;
+	int start(Camera *camera, const ControlList *controls) override;
 	void stop(Camera *camera) override;
 
 	int queueRequestDevice(Camera *camera, Request *request) override;
@@ -652,7 +652,7 @@ int PipelineHandlerIPU3::freeBuffers(Camera *camera)
 	return 0;
 }
 
-int PipelineHandlerIPU3::start(Camera *camera, [[maybe_unused]] ControlList *controls)
+int PipelineHandlerIPU3::start(Camera *camera, [[maybe_unused]] const ControlList *controls)
 {
 	std::map<uint32_t, ControlInfoMap> entityControls;
 	IPU3CameraData *data = cameraData(camera);