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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, david.plowman@raspberrypi.com
Cc: Jacopo Mondi <jacopo.mondi@ideasonboard.com>,
	Jai Luthra <jai.luthra@ideasonboard.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Hans Verkuil <hverkuil+cisco@kernel.org>,
	linux-media@vger.kernel.org
Subject: FAILED: Patch "media: i2c: ov5647: Correct minimum VBLANK value" failed to apply to 6.1-stable tree
Date: Sat, 28 Feb 2026 20:41:30 -0500	[thread overview]
Message-ID: <20260301014130.1703145-1-sashal@kernel.org> (raw)

The patch below does not apply to the 6.1-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>.

Thanks,
Sasha

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

From 1438248c5a82c86b4e1f0311c3bb827af747a8cf Mon Sep 17 00:00:00 2001
From: David Plowman <david.plowman@raspberrypi.com>
Date: Mon, 22 Dec 2025 13:45:27 +0530
Subject: [PATCH] media: i2c: ov5647: Correct minimum VBLANK value

Trial and error reveals that the minimum vblank value appears to be 24
(the OV5647 data sheet does not give any clues). This fixes streaming
lock-ups in full resolution mode.

Fixes: 2512c06441e3 ("media: ov5647: Support V4L2_CID_VBLANK control")
Cc: stable@vger.kernel.org
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Jai Luthra <jai.luthra@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
---
 drivers/media/i2c/ov5647.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/ov5647.c b/drivers/media/i2c/ov5647.c
index d9e300406f58e..191954497e3db 100644
--- a/drivers/media/i2c/ov5647.c
+++ b/drivers/media/i2c/ov5647.c
@@ -73,7 +73,7 @@
 #define OV5647_PIXEL_ARRAY_WIDTH	2592U
 #define OV5647_PIXEL_ARRAY_HEIGHT	1944U
 
-#define OV5647_VBLANK_MIN		4
+#define OV5647_VBLANK_MIN		24
 #define OV5647_VTS_MAX			32767
 
 #define OV5647_EXPOSURE_MIN		4
-- 
2.51.0





                 reply	other threads:[~2026-03-01  1:41 UTC|newest]

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