From 935f6ff2672a36c1e2b842bdcc23429a39ff535d Mon Sep 17 00:00:00 2001
From: Kieran Bingham <kieran.bingham@ideasonboard.com>
Date: Thu, 8 Aug 2024 17:57:01 +0100
Subject: libcamera: libipa: camera_sensor: Add IMX283 black level

Report the default sensor black level reported by the datasheet.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 src/ipa/libipa/camera_sensor_helper.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/ipa/libipa/camera_sensor_helper.cpp b/src/ipa/libipa/camera_sensor_helper.cpp
index ffc7c1d7..bb90b543 100644
--- a/src/ipa/libipa/camera_sensor_helper.cpp
+++ b/src/ipa/libipa/camera_sensor_helper.cpp
@@ -550,6 +550,8 @@ class CameraSensorHelperImx283 : public CameraSensorHelper
 public:
 	CameraSensorHelperImx283()
 	{
+		/* From datasheet: 0x32 at 10bits. */
+		blackLevel_ = 3200;
 		gainType_ = AnalogueGainLinear;
 		gainConstants_.linear = { 0, 2048, -1, 2048 };
 	}
-- 
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