From d5c6e78a601fdcd0c63683be7d532b2354baa4ac Mon Sep 17 00:00:00 2001
From: Stefan Klug <stefan.klug@ideasonboard.com>
Date: Tue, 25 Nov 2025 17:28:25 +0100
Subject: [PATCH] libcamera: rkisp1: Allow upscaling when the dewarper is
 present

When the dewarper is present, there is no need to forbid upscaling of
the image data.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 src/libcamera/pipeline/rkisp1/rkisp1.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libcamera/pipeline/rkisp1/rkisp1.cpp b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
index 2d89b0b4..79c8717c 100644
--- a/src/libcamera/pipeline/rkisp1/rkisp1.cpp
+++ b/src/libcamera/pipeline/rkisp1/rkisp1.cpp
@@ -609,6 +609,11 @@ CameraConfiguration::Status RkISP1CameraConfiguration::validate()
 			return false;
 
 		if (useDewarper) {
+			/*
+			 * The dewarper output is independent of the ISP path.
+			 * Reset to the originally requested size.
+			 */
+			tryCfg.size = cfg.size;
 			bool adjusted;
 
 			pipe->dewarper_->validateOutput(&tryCfg, &adjusted,