media: coda: add min number of buffers controls

Add min number of buffers for capture (decoder) and output (encoder)
controls, which are required by the stateful video decoder / encoder
interface specification.

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 de608de..f1d3fb1 100644 (file)
--- a/drivers/media/platform/coda/coda-common.c
+++ b/drivers/media/platform/coda/coda-common.c
@@ -2061,11 +2061,17 @@ static int coda_ctrls_setup(struct coda_ctx *ctx)
        v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
                V4L2_CID_VFLIP, 0, 1, 1, 0);
        if (ctx->inst_type == CODA_INST_ENCODER) {
+               v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+                                 V4L2_CID_MIN_BUFFERS_FOR_OUTPUT,
+                                 1, 1, 1, 1);
                if (ctx->cvd->dst_formats[0] == V4L2_PIX_FMT_JPEG)
                        coda_jpeg_encode_ctrls(ctx);
                else
                        coda_encode_ctrls(ctx);
        } else {
+               v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops,
+                                 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
+                                 1, 1, 1, 1);
                if (ctx->cvd->src_formats[0] == V4L2_PIX_FMT_H264)
                        coda_decode_ctrls(ctx);
        }