[PATCH v4 01/13] libcamera: mali-c55: Limit max size to sensor resolution

[Daniel Scally]

From: Jacopo Mondi <jacopo.mondi at ideasonboard.com>

The Mali C55 ISP cannot upscale. The maximum allowed output size
is the sensor's resolution.

For RAW streams this is already handled in adjustRawSizes(), while
for processed streams the maximum allowed resolution was wrongly
set to the ISP maximum output size (8192x8192).

Reviewed-by: Daniel Scally <dan.scally at ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain at ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally at ideasonboard.com>
---
 src/libcamera/pipeline/mali-c55/mali-c55.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libcamera/pipeline/mali-c55/mali-c55.cpp b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
index 45c71c1d..1c1fef23 100644
--- a/src/libcamera/pipeline/mali-c55/mali-c55.cpp
+++ b/src/libcamera/pipeline/mali-c55/mali-c55.cpp
@@ -342,7 +342,11 @@ CameraConfiguration::Status MaliC55CameraConfiguration::validate()
 		rawConfig = &config;
 	}
 
-	Size maxSize = kMaliC55MaxSize;
+	/*
+	 * The C55 can not upscale. Limit the configuration to the ISP
+	 * capabilities and the sensor resolution.
+	 */
+	Size maxSize = kMaliC55MaxSize.boundedTo(data_->resolution());
 	if (rawConfig) {
 		/*
 		 * \todo Take into account the Bayer components ordering once
-- 
2.34.1