Messages in this thread Patch in this message |  | | From | Jacopo Mondi <> | | Date | Mon, 04 May 2026 14:43:14 +0200 | | Subject | [PATCH] media: rcar-vin: Drop min_queued_buffers |
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From: Jacopo Mondi <jacopo.mondi+renesas@ideasonboard.com>
The R-Car VIN driver already uses a scratch buffer to sustain capture operations in absence of a frame buffer provided by userspace.
There is no reason to require 4 buffers queued at all times for the driver to operate. Drop min_queued_buffers from the VIN driver to allow single-frame capture operations.
Signed-off-by: Jacopo Mondi <jacopo.mondi+renesas@ideasonboard.com> --- This allows to capture a single frame when the R-Car VIN is used to feed the R-Car ISP on R-Car V4H.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> --- drivers/media/platform/renesas/rcar-vin/rcar-dma.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c index f9af9177e02f..73cda0e2d45a 100644 --- a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c @@ -1494,7 +1494,6 @@ int rvin_dma_register(struct rvin_dev *vin, int irq) q->ops = &rvin_qops; q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_queued_buffers = 4; q->dev = vin->dev; ret = vb2_queue_init(q); --- base-commit: d9c8c4adf23d17549c0ec9c85b99d85a0ee6cf18 change-id: 20260504-rcar-vin-min-queued-buffs-31891f226fe6 Best regards, -- Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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