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media: ti-vpe: cal: fix queuing of the initial buffer

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When starting streaming the driver currently programs the buffer
address to the CAL base-address register and assigns the buffer pointer
to ctx->dma.pending. This is not correct, as the buffer is not
"pending", but active, and causes the first buffer to be needlessly
written twice.

Fix this by assigning the buffer pointer to ctx->dma.active.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Tomi Valkeinen 2021-06-14 13:23:41 +02:00 committed by Mauro Carvalho Chehab
parent 9e67f24e4d
commit 892c37f8a3
1 changed files with 1 additions and 1 deletions
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2
drivers/media/platform/ti-vpe/cal-video.c
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@ -731,7 +731,7 @@ static int cal_start_streaming(struct vb2_queue *vq, unsigned int count)
spin_lock_irq(&ctx->dma.lock);
buf = list_first_entry(&ctx->dma.queue, struct cal_buffer, list);
ctx->dma.pending = buf;
ctx->dma.active = buf;
list_del(&buf->list);
spin_unlock_irq(&ctx->dma.lock);