libcamera: camera_sensor: Introduce CameraSensorFactory

Introduce a factory to create CameraSensor derived classes instances by
inspecting the sensor media entity name and provide a convenience macro
to register specialized sensor handlers.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
---
Changes since combined RFC:

- Fix indentation in REGISTER_CAMERA_SENSOR() macro

1 files changed, 1 insertions, 4 deletions

diff --git a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
index 7e420b3f..d662c8f1 100644
--- a/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
+++ b/src/libcamera/pipeline/rpi/common/pipeline_base.cpp
@@ -772,13 +772,10 @@ int PipelineHandlerBase::registerCamera(std::unique_ptr<RPi::CameraData> &camera
 	CameraData *data = cameraData.get();
 	int ret;
 
-	data->sensor_ = std::make_unique<CameraSensor>(sensorEntity);
+	data->sensor_ = CameraSensorFactoryBase::create(sensorEntity);
 	if (!data->sensor_)
 		return -EINVAL;
 
-	if (data->sensor_->init())
-		return -EINVAL;
-
 	/* Populate the map of sensor supported formats and sizes. */
 	for (auto const mbusCode : data->sensor_->mbusCodes())
 		data->sensorFormats_.emplace(mbusCode,