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media: coda: do not enforce 512-byte initial bitstream payload on CODA960 

On CODA960, sequence initialization can succeed if less than 512 bytes
are ready in the bitstream ring buffer.
On other variants, warn about too small payload in start_streaming.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Philipp Zabel 2019-06-18 12:45:20 -04:00 committed by Mauro Carvalho Chehab
parent 2719ef7d1b
commit f74c0a29ec
1 changed files with 3 additions and 1 deletions
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4
drivers/media/platform/coda/coda-common.c
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@ -1790,7 +1790,9 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
coda_fill_bitstream(ctx, &list);
mutex_unlock(&ctx->bitstream_mutex);
if (coda_get_bitstream_payload(ctx) < 512) {
if (ctx->dev->devtype->product != CODA_960 &&
coda_get_bitstream_payload(ctx) < 512) {
v4l2_err(v4l2_dev, "start payload < 512\n");
ret = -EINVAL;
goto err;
}