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From cd306429474a0265660759ab12024d8ff978d586 Mon Sep 17 00:00:00 2001
From: Naushir Patuck <naush@raspberrypi.com>
Date: Fri, 11 Jun 2021 12:47:07 +0100
Subject: [PATCH] media: i2c: imx477: Fix for long exposure limit
calculations
Do not scale IMX477_EXPOSURE_OFFSET with the long exposure factor during
the limit calculations. This allows larger exposure times, and does seem to be
what the sensor is doing internally.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
---
drivers/media/i2c/imx477.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/i2c/imx477.c
+++ b/drivers/media/i2c/imx477.c
@@ -1282,7 +1282,7 @@ static void imx477_adjust_exposure_range
/* Honour the VBLANK limits when setting exposure. */
exposure_max = imx477->mode->height + imx477->vblank->val -
- (IMX477_EXPOSURE_OFFSET << imx477->long_exp_shift);
+ IMX477_EXPOSURE_OFFSET;
exposure_def = min(exposure_max, imx477->exposure->val);
__v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum,
exposure_max, imx477->exposure->step,
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