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>

diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c
index 19e3afa4f24d0a4a4c6e5da8168bea28240d41c6..1f1eb9685bc49ed38cb3705e6d4eeaa9ce6a69ee 100644 (file)
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -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;
                        }