[v7,5/8] libcamera: mali-c55: Configure camera in memory-to-memory
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Message ID 20260331-mali-cru-v7-5-4caedc898a0e@ideasonboard.com
State New
Headers show
Series
  • libcamera: mali-c55: Add support for memory-to-memory
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Commit Message

Jacopo Mondi March 31, 2026, 4:36 p.m. UTC 
Add support for memory-to-memory Camera to the
PipelineHandlerMaliC55::configure() function.

Start by enabling the IVC links, then configure the CRU and
propagate the format to the IVC.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
---
 src/libcamera/pipeline/mali-c55/mali-c55.cpp | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

Patch
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diff --git a/src/libcamera/pipeline/mali-c55/mali-c55.cpp b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
index d17b026db119..566fa0549675 100644
--- a/src/libcamera/pipeline/mali-c55/mali-c55.cpp
+++ b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
@@ -1013,8 +1013,9 @@  int PipelineHandlerMaliC55::configure(Camera *camera,
 			const MediaEntity *csi2Entity = in.csi2_->entity();
 			return csi2Entity->getPadByIndex(1)->links()[0]->setEnabled(true);
 		},
-		[](MaliC55CameraData::Memory &) {
-			return 0;
+		[&](MaliC55CameraData::Memory &) {
+			const MediaEntity *ivcEntity = ivcSd_->entity();
+			return ivcEntity->getPadByIndex(1)->links()[0]->setEnabled(true);
 		},
 	}, data->input_);
 	if (ret)
@@ -1041,8 +1042,23 @@  int PipelineHandlerMaliC55::configure(Camera *camera,
 
 			return in.csi2_->getFormat(1, &subdevFormat);
 		},
-		[](MaliC55CameraData::Memory &) {
-			return 0;
+		[&](MaliC55CameraData::Memory &mem) {
+			V4L2DeviceFormat inputFormat;
+
+			int r = mem.cru_->configure(&subdevFormat, &inputFormat);
+			if (r)
+				return r;
+
+			/* Propagate the CRU format to the IVC input. */
+			r = ivcSd_->setFormat(0, &subdevFormat);
+			if (r)
+				return r;
+
+			r = ivcSd_->getFormat(1, &subdevFormat);
+			if (r)
+				return r;
+
+			return ivc_->setFormat(&inputFormat);
 		},
 	}, data->input_);
 	if (ret)