[libcamera-devel] [PATCH v4 5/5] src: ipa: raspberrypi: Fix initial AGC oscillation for imx219 sensor

[David Plowman]

The exposure times in the exposure modes were causing AGC oscillations
because the algorithm was demanding long unachievable exposure times
but, without working sensor metadata, thought it was getting them when
actually it was not. We fix it by making the exposure profile request
only achievable exposure times, as we do for the ov5647 tuning.

Signed-off-by: David Plowman <david.plowman at raspberrypi.com>
Reviewed-by: Naushir Patuck <naush at raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
---
 src/ipa/raspberrypi/data/imx219.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ipa/raspberrypi/data/imx219.json b/src/ipa/raspberrypi/data/imx219.json
index b03a7beb..212f8b9a 100644
--- a/src/ipa/raspberrypi/data/imx219.json
+++ b/src/ipa/raspberrypi/data/imx219.json
@@ -133,7 +133,7 @@
             {
                 "shutter":
                 [
-                    100, 10000, 30000, 60000, 120000
+                    100, 10000, 30000, 30000, 30000
                 ],
                 "gain":
                 [
@@ -144,7 +144,7 @@
             {
                 "shutter":
                 [
-                    100, 5000, 10000, 20000, 120000
+                    100, 5000, 10000, 20000, 30000
                 ],
                 "gain":
                 [
-- 
2.20.1