[libcamera-devel] [PATCH] ipa: raspberrypi: Fix exposure and gain delays for imx477

[Naushir Patuck]

The exposure and gain delays for imx477 are both 2 frames. This error
was not noticeable because the controller was using the embedded
metadata to get the exposure and gain values for the frame.

Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
---
 src/ipa/raspberrypi/cam_helper_imx477.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/ipa/raspberrypi/cam_helper_imx477.cpp b/src/ipa/raspberrypi/cam_helper_imx477.cpp
index 9a53c5dba9f8..e26c91f7d86d 100644
--- a/src/ipa/raspberrypi/cam_helper_imx477.cpp
+++ b/src/ipa/raspberrypi/cam_helper_imx477.cpp
@@ -37,6 +37,7 @@ public:
 	CamHelperImx477();
 	uint32_t GainCode(double gain) const override;
 	double Gain(uint32_t gain_code) const override;
+	void GetDelays(int &exposure_delay, int &gain_delay) const override;
 	bool SensorEmbeddedDataPresent() const override;
 
 private:
@@ -62,6 +63,12 @@ double CamHelperImx477::Gain(uint32_t gain_code) const
 	return 1024.0 / (1024 - gain_code);
 }
 
+void CamHelperImx477::GetDelays(int &exposure_delay, int &gain_delay) const
+{
+	exposure_delay = 2;
+	gain_delay = 2;
+}
+
 bool CamHelperImx477::SensorEmbeddedDataPresent() const
 {
 	return true;
-- 
2.25.1