| From f70be37d1bd6b68ed38022580b16c972598901e2 Mon Sep 17 00:00:00 2001 |
| From: David Plowman <david.plowman@raspberrypi.com> |
| Date: Thu, 28 May 2020 11:09:48 +0100 |
| Subject: [PATCH] media: bcm2835-unicam: change minimum number of |
| vb2_queue buffers to 1 |
| |
| Since the unicam driver was modified to write to a dummy buffer when no |
| user-supplied buffer is available, it can now write to and return a |
| buffer even when there's only a single one. Enable this by changing the |
| min_buffers_needed in the vb2_queue; it will be useful for enabling |
| still captures without allocating more memory than absolutely necessary. |
| |
| Signed-off-by: David Plowman <david.plowman@raspberrypi.com> |
| --- |
| drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/media/platform/bcm2835/bcm2835-unicam.c |
| +++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c |
| @@ -2404,7 +2404,7 @@ static int register_node(struct unicam_d |
| q->buf_struct_size = sizeof(struct unicam_buffer); |
| q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
| q->lock = &node->lock; |
| - q->min_buffers_needed = 2; |
| + q->min_buffers_needed = 1; |
| q->dev = &unicam->pdev->dev; |
| |
| ret = vb2_queue_init(q); |