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openmptcprouter/root/target/linux/bcm27xx/patches-5.14/0396-media-i2c-ov5647-Correct-minimum-VBLANK-value.patch
Ycarus (Yannick Chabanois) 5c593832cc Add 5.14 patches for RPI
2021-10-01 16:58:58 +02:00

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From 60753d752ea3daa7be131045a0996b142fcae6d4 Mon Sep 17 00:00:00 2001
From: David Plowman <david.plowman@raspberrypi.com>
Date: Tue, 11 May 2021 12:57:22 +0100
Subject: [PATCH 396/552] 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: 9b5a5ebedc303 ("media: i2c: ov5647: Add support for V4L2_CID_VBLANK")
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
---
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 4228e98e7975..62adb70df488 100644
--- a/drivers/media/i2c/ov5647.c
+++ b/drivers/media/i2c/ov5647.c
@@ -72,7 +72,7 @@
#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
--
2.33.0