From 411646771016d985946a9fb5f0ca1974c8ad562f Mon Sep 17 00:00:00 2001
From: Kieran Bingham <kieran.bingham@ideasonboard.com>
Date: Thu, 19 Feb 2026 15:05:11 +0000
Subject: [PATCH] ipa: rkisp1: ccm: Use Q<4, 7> format directly
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Replace the legacy call to floatingToFixedPoint with the new FixedPoint
quantizer to explicitly describe the type used by the RKISP1 Colour
Correction Matrix.

Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 src/ipa/rkisp1/algorithms/ccm.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/ipa/rkisp1/algorithms/ccm.cpp b/src/ipa/rkisp1/algorithms/ccm.cpp
index de2b6fe7..466d7a11 100644
--- a/src/ipa/rkisp1/algorithms/ccm.cpp
+++ b/src/ipa/rkisp1/algorithms/ccm.cpp
@@ -117,8 +117,7 @@ void Ccm::setParameters(struct rkisp1_cif_isp_ctk_config &config,
 	 */
 	for (unsigned int i = 0; i < 3; i++) {
 		for (unsigned int j = 0; j < 3; j++)
-			config.coeff[i][j] =
-				floatingToFixedPoint<4, 7, uint16_t, double>(matrix[i][j]);
+			config.coeff[i][j] = Q<4, 7>(matrix[i][j]).quantized();
 	}
 
 	for (unsigned int i = 0; i < 3; i++)