[libcamera-devel] [PATCH] ipa: raspberrypi: Fix sensor delays for the IMX296

[Naushir Patuck]

The IMX296 implements a 2 frame delay for exposure, gain and vertical blanking
changes. Report this in the camera helper.

Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
---
 src/ipa/raspberrypi/cam_helper_imx296.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/ipa/raspberrypi/cam_helper_imx296.cpp b/src/ipa/raspberrypi/cam_helper_imx296.cpp
index ab1d157aaf45..09f828ea6249 100644
--- a/src/ipa/raspberrypi/cam_helper_imx296.cpp
+++ b/src/ipa/raspberrypi/cam_helper_imx296.cpp
@@ -23,6 +23,7 @@ public:
 	double gain(uint32_t gainCode) const override;
 	uint32_t exposureLines(Duration exposure) const override;
 	Duration exposure(uint32_t exposureLines) const override;
+	void getDelays(int &exposureDelay, int &gainDelay, int &vblankDelay) const override;
 
 private:
 	static constexpr uint32_t maxGainCode = 239;
@@ -61,6 +62,14 @@ Duration CamHelperImx296::exposure(uint32_t exposureLines) const
 	return exposureLines * timePerLine + 14.26us;
 }
 
+void CamHelperImx296::getDelays(int &exposureDelay, int &gainDelay,
+				int &vblankDelay) const
+{
+	exposureDelay = 2;
+	gainDelay = 2;
+	vblankDelay = 2;
+}
+
 static CamHelper *create()
 {
 	return new CamHelperImx296();
-- 
2.25.1