libcamera: pipeline_handler: Mark controls() and properties() as const operations

Reading the controls and properties does not modify the pipeline's state
and can be marked as const operations.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/libcamera/pipeline_handler.cpp b/src/libcamera/pipeline_handler.cpp
index 73c51972..918aea1e 100644
--- a/src/libcamera/pipeline_handler.cpp
+++ b/src/libcamera/pipeline_handler.cpp
@@ -257,9 +257,9 @@ void PipelineHandler::unlock()
  * \context This function is \threadsafe.
  * \return A ControlInfoMap listing the controls support by \a camera
  */
-const ControlInfoMap &PipelineHandler::controls(Camera *camera)
+const ControlInfoMap &PipelineHandler::controls(const Camera *camera) const
 {
-	CameraData *data = cameraData(camera);
+	const CameraData *data = cameraData(camera);
 	return data->controlInfo_;
 }
 
@@ -268,9 +268,9 @@ const ControlInfoMap &PipelineHandler::controls(Camera *camera)
  * \param[in] camera The camera
  * \return A ControlList of properties supported by \a camera
  */
-const ControlList &PipelineHandler::properties(Camera *camera)
+const ControlList &PipelineHandler::properties(const Camera *camera) const
 {
-	CameraData *data = cameraData(camera);
+	const CameraData *data = cameraData(camera);
 	return data->properties_;
 }