[PATCH] ipa: rpi: cam_helper: imx708: Correct the frame integration diff value

[David Plowman]

This is the minimum permitted difference between the frame length and
coarse exposure (both measured in lines). The correct value, taken
from the datasheet, is 48.

Signed-off-by: David Plowman <david.plowman at raspberrypi.com>
---
 src/ipa/rpi/cam_helper/cam_helper_imx708.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp
index ec83d9fd..16a017e9 100644
--- a/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp
+++ b/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp
@@ -66,7 +66,7 @@ private:
 	 * Smallest difference between the frame length and integration time,
 	 * in units of lines.
 	 */
-	static constexpr int frameIntegrationDiff = 22;
+	static constexpr int frameIntegrationDiff = 48;
 	/* Maximum frame length allowable for long exposure calculations. */
 	static constexpr int frameLengthMax = 0xffdc;
 	/* Largest long exposure scale factor given as a left shift on the frame length. */
-- 
2.39.5