linux-kernel - [PATCH AUTOSEL 6.6 211/294] media: i2c: imx219: Correct the minimum vblanking value

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Message-Id: <20250505225634.2688578-211-sashal@kernel.org>
Date: Mon,  5 May 2025 18:55:11 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: David Plowman <david.plowman@...pberrypi.com>,
	Jacopo Mondi <jacopo.mondi@...asonboard.com>,
	Dave Stevenson <dave.stevenson@...pberrypi.com>,
	Jai Luthra <jai.luthra@...asonboard.com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Hans Verkuil <hverkuil@...all.nl>,
	Sasha Levin <sashal@...nel.org>,
	mchehab@...nel.org,
	linux-media@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 211/294] media: i2c: imx219: Correct the minimum vblanking value

From: David Plowman <david.plowman@...pberrypi.com>

[ Upstream commit e3b82d49bf676f3c873e642038765eac32ab6d39 ]

The datasheet for this sensor documents the minimum vblanking as being
32 lines. It does fix some problems with occasional black lines at the
bottom of images (tested on Raspberry Pi).

Signed-off-by: David Plowman <david.plowman@...pberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@...asonboard.com>
Reviewed-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
Signed-off-by: Jai Luthra <jai.luthra@...asonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@...all.nl>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/i2c/imx219.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index a14e571dc62bc..a3d5a8a7c660b 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -77,7 +77,7 @@
 #define IMX219_VTS_30FPS_640x480	0x06e3
 #define IMX219_VTS_MAX			0xffff
 
-#define IMX219_VBLANK_MIN		4
+#define IMX219_VBLANK_MIN		32
 
 /*Frame Length Line*/
 #define IMX219_FLL_MIN			0x08a6
-- 
2.39.5