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media: rzv2h-ivc: Revise default VBLANK formula

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The vertical blanking settings for the IVC block are dependent on
settings in the ISP. This was originally set to calculate as the
worst-case possible value, but it seems that this can cause the IVC
block to hang. Instead calculate the vblank to match the default
settings (which are currently all the driver sets anyway).

Cc: stable@vger.kernel.org
Fixes: f0b3984d82 ("media: platform: Add Renesas Input Video Control block driver")
Signed-off-by: Daniel Scally <dan.scally+renesas@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Daniel Scally 2026-02-12 10:08:11 +00:00 committed by Hans Verkuil
parent 062ae1d031
commit 38104fe60e
1 changed files with 1 additions and 1 deletions
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2
drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc-video.c
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@ -24,7 +24,7 @@
#include <media/videobuf2-dma-contig.h>
#define RZV2H_IVC_FIXED_HBLANK 0x20
#define RZV2H_IVC_MIN_VBLANK(hts) max(0x1b, 15 + (120501 / (hts)))
#define RZV2H_IVC_MIN_VBLANK(hts) max(0x1b, 70100 / (hts))
struct rzv2h_ivc_buf {
struct vb2_v4l2_buffer vb;