FAILED: patch "[PATCH] media: imx219: Account rate_factor in setting upper exposure limit" failed to apply to 6.18-stable tree

FAILED: patch "[PATCH] media: imx219: Account rate_factor in setting upper exposure limit" failed to apply to 6.18-stable tree

[Sasha Levin]

The patch below does not apply to the 6.18-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.18.y
git checkout FETCH_HEAD
git cherry-pick -x db111b66f2db7f3f79d9359f4a9762e832d6fde9
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '20261107050655-failed-6.18-db111b66f2db@kernel.org' --subject-prefix 'PATCH 6.18.y' 'HEAD^..'

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From db111b66f2db7f3f79d9359f4a9762e832d6fde9 Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Mon, 20 Apr 2026 20:31:49 +0300
Subject: [PATCH] media: imx219: Account rate_factor in setting upper exposure
 limit

The rate_factor multiplier is used to multiply a few values in the
sensor's timing configuration and the exposure time is one of them. This
also needs to be taken into account in exposure time margin: multiply it
by rate_factor so that sensor's exposure time margin is respected.

Fixes: f513997119f4 ("media: i2c: imx219: Scale the pixel rate for analog binning")
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/media/i2c/imx219.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 9571f3622d2d4..5184523de8bed 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -466,7 +466,8 @@ static int imx219_set_ctrl(struct v4l2_ctrl *ctrl)
 		int exposure_max, exposure_def;
 
 		/* Update max exposure while meeting expected vblanking */
-		exposure_max = format->height + ctrl->val - IMX219_EXPOSURE_OFFSET;
+		exposure_max = format->height + ctrl->val -
+			IMX219_EXPOSURE_OFFSET * rate_factor;
 		exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
 				exposure_max : IMX219_EXPOSURE_DEFAULT;
 		ret = __v4l2_ctrl_modify_range(imx219->exposure,
@@ -893,6 +894,7 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
 	crop->top = (IMX219_NATIVE_HEIGHT - crop->height) / 2;
 
 	if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+		int rate_factor = imx219_get_rate_factor(state);
 		int exposure_max;
 		int exposure_def;
 		int llp_min;
@@ -911,7 +913,8 @@ static int imx219_set_pad_format(struct v4l2_subdev *sd,
 			return ret;
 
 		/* Update max exposure while meeting expected vblanking */
-		exposure_max = mode->fll_def - IMX219_EXPOSURE_OFFSET;
+		exposure_max = mode->fll_def -
+			IMX219_EXPOSURE_OFFSET * rate_factor;
 		exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
 				exposure_max : IMX219_EXPOSURE_DEFAULT;
 		ret = __v4l2_ctrl_modify_range(imx219->exposure,
-- 
2.53.0